Relevant bibliographies by topics / Volcanic areas

Academic literature on the topic 'Volcanic areas'

Author: Grafiati
Published: 10 December 2022
Last updated: 10 March 2023

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Journal articles on the topic "Volcanic areas"

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Zakharikhina, L. V., and Yu S. Litvinenko. "Volcanism and geochemistry of soil and vegetation cover of Kamchatka. Communication 2. Specificity of forming the elemental composition of volcanic soil in cold and humid conditions." Вулканология и сейсмология, no. 3 (May 14, 2019): 25–33. http://dx.doi.org/10.31857/s0203-03062019325-33.

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Volcanic soils of Kamchatka have the low contents of most the chemical elements in relation to their overall prevalence in the soils of continents and volcanic soils of Europe. Relatively increased gross contents of elements typical for volcanic rocks of medium and basic composition: Na, Ca, Mg, Cd, Mn, Co, Cu, and steadily low contents of elements characteristic of acid volcanics: La, Ce, Pr, Nd, Nb, Hf, Tl, Rb and Th, is most characteristic of the soils of different areas of the peninsula. The existing in the past and currently observed different conditions of volcanism in the previously allocated soil areas of Kamchatka determine the diversity of the chemical composition of the soils in these territories.
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Zakharikhina, L. V., and Yu S. Litvinenko. "Volcanism and geochemistry of soil and vegetation cover of Kamchatka. Communication 2. Specificity of forming the elemental composition of volcanic soil in cold and humid conditions." Вулканология и сейсмология, no. 3 (May 14, 2019): 25–33. http://dx.doi.org/10.31857/s0205-96142019325-33.

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Volcanic soils of Kamchatka have the low contents of most the chemical elements in relation to their overall prevalence in the soils of continents and volcanic soils of Europe. Relatively increased gross contents of elements typical for volcanic rocks of medium and basic composition: Na, Ca, Mg, Cd, Mn, Co, Cu, and steadily low contents of elements characteristic of acid volcanics: La, Ce, Pr, Nd, Nb, Hf, Tl, Rb and Th, is most characteristic of the soils of different areas of the peninsula. The existing in the past and currently observed different conditions of volcanism in the previously allocated soil areas of Kamchatka determine the diversity of the chemical composition of the soils in these territories.
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Seniukov, S. L., and I. N. Nuzhdina. "SEISMISITY of the VOLCANIC AREAS of KAMCHATKA in 2016–2017." Earthquakes in Northern Eurasia, no. 25 (December 20, 2022): 361–77. http://dx.doi.org/10.35540/1818-6254.2022.25.34.

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The results of near real-time monitoring of the active Kamchatka volcanoes are described. Continuous monitoring was carried out using three remote methods: 1) seismic monitoring according to automatic telemetric seismic stations; 2) visual and video observation; 3) satellite observation of the thermal anomalies and the ash clouds. Daily information about volcanic activity is published in the Internet (http://www.emsd.ru/~ssl/monitoring/main.htm) since February 2000. The results of seismic activity of the Northern (Shiveluch, Kluchevskoy, Bezymianny, Krestovsky and Ushkovsky), Avacha (Avachinsky and Koryaksky), Mutnovsky-Gorely volcano group and Kizimen volcano for 2016–2017 are presented. Within two years 8152 earthquakes with KS=1.6–8.5 were located for Northern volcano group, 616 earthquakes with KS=1.6–7.2 – for Avacha volcano group, 357 earthquakes with KS=2.0–6.2 – Mutnovsky-Gorely volcano group, 144 earthquakes with KS=2.3–9.4 for Kizimen volcano, 322 earthquakes with KS=1.8–8.1 for Zhupanovsky volcano and 90 earthquakes with KS=5.0–8.6 for Kambalny volcano. Maps of epicenters, quantities of seismic energy and earthquake distribution according to class are given. All periods of activity were fixed and investigated by remote methods in 2016–2017: intensive volcanic activity of Sheveluch volcano associated with new cone, the summit explosive-effusive eruption of Kluchevskoy volcano from April 2016 till September 2017, explosive activity of Zhupanovsky volcano and seismic preparation and volcanic eruption of Kambalny volcano observed for the first time in historical period.
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Seniukov, S., and I. Nuzhdina. "SEISMISITY of THE VOLCANIC AREAS of KAMCHATKA in 2015." Earthquakes in Northern Eurasia, no. 24 (December 14, 2021): 349–61. http://dx.doi.org/10.35540/1818-6254.2021.24.33.

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The results of near real-time monitoring of the active Kamchatka volcanoes are described. Continuous monitoring was carried out using three remote methods: 1) seismic monitoring according to automatic telemetric seismic stations; 2) visual and video observation; 3) satellite observation of the thermal anomalies and the ash clouds. Annual results of seismic activity of the Northern (Shiveluch, Kluchevskoy, Bezymianny, Krestovsky, and Ushkovsky), the Avacha (Avachinsky, and Koryaksky), the Mutnovsky-Gorely volcano groups and the Kizimen volcano are presented. 5464 earthquakes with КS=1.8–8.1 were located for the Northern volcano group, 302 earthquakes with КS=1.7–5.7 – for the Avacha volcano group, 295 earthquakes with КS=2.1–6.8 for the Mutnovsky-Gorely volcano group, 462 earthquakes with КS=2.2–8.3 for Kizimen volcano, and 165 earthquakes with КS=2.5–8.4 for Zhupanovsky volcano in 2015. Maps of epicenters, quantities of seismic energy and earthquake distribution by energy classes are given. All periods of activity were fixed and investigated by remote methods in 2015: intensive volcanic activity of the Sheveluch volcano associated with a new cone; the summit explosive-effusive eruption of the Kluchevskoy volcano in January–April; and a continuation of seismic and volcanic activity of the Zhupanovsky volcano after 56-year quite period.
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Akay, G., P. Dare, and R. B. Langley. "Determination of Periodic Variations in Sub-Daily GPS Positions of Volcanic Areas." GEOMATICA 68, no. 2 (June 2014): 107–17. http://dx.doi.org/10.5623/cig2014-203.

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Deformation caused by a volcano (e.g., from volcanic activity) can be a good indicator of volcanic processes; ground deformation measurements using geodetic tools can be useful to monitor this movement. This study concentrates on detecting short-term movements occurring during both low activity periods and the eruptive stages of a volcano on the island of Montserrat by using sub-daily (epoch-by-epoch) GPS data processing approaches. The GPS data are obtained from UNAVCO for stations surrounding the Soufrière Hills Volcano during the May 20, 2006, volcanic eruption period and during the Fall 2012 period (a period of lower activity). In order to analyze hidden periodicities within the data, Least Squares Spectral Analysis has been used. Our results show that the sub-daily peaks are located at near diurnal and semidiurnal tidal constituents (K1 and K2) with up to 5 mm amplitude.
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Melling, David R., Charles E. Blackburn, David H. Watkinson, and Jack R. Parker. "Geological setting of gold, western Wabigoon Subprovince, Canadian Shield: exploration targets in mixed volcanic successions." Canadian Journal of Earth Sciences 25, no. 12 (December 1, 1988): 2075–88. http://dx.doi.org/10.1139/e88-192.

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The Archean volcanic rocks in the Cameron–Rowan lakes area may be divided into three distinct successions based on field mapping, petrographic studies, and lithogeochemical characteristics. The lowermost Rowan Lake Volcanics are tholeiitic pillowed basalts. These rocks are unconformably overlain by the Cameron Lake Volcanics, a mixed succession of tholeiitic massive and pillowed basalts and intermediate to felsic volcaniclastic rocks. The Brooks Lake Volcanics consist of tholeiitic basalts and represent the youngest volcanic rocks at the top of the preserved succession.Most of the gold concentrations in the Cameron–Rowan lakes area are confined to the mixed Cameron Lake Volcanics. The majority of these, including the Cameron Lake deposit, occur within shear zones near lithologic contacts. In the Eagle–Wabigoon and Manitou lakes areas there are similar stratigraphic subdivisions of the supracrustal rocks and many of the gold concentrations also occur in deformation zones within the mixed volcanic successions. The contrasting competencies among the basalts, the intermediate to felsic volcaniclastic rocks, and the intrusive rocks, which are characteristic of the mixed volcanic successions, localized stress during deformation, forming shear zones into which gold-bearing fluids gained access. The potential for successfully delineating economic gold concentrations appears greatest in the mixed volcanic successions within these areas and elsewhere in the western Wabigoon Subprovince of the Canadian Shield.
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Megerle, Heidi Elisabeth. "Geoheritage and Geotourism in Regions with Extinct Volcanism in Germany; Case Study Southwest Germany with UNESCO Global Geopark Swabian Alb." Geosciences 10, no. 11 (November 8, 2020): 445. http://dx.doi.org/10.3390/geosciences10110445.

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Geotourism has become more popular in recent decades. Volcanism is an essential part of geoheritage and attracts a high number of visitors. In contrast to active volcanism, Tertiary volcanism is often not identified as such by a lay audience and is understandably perceived as less spectacular. The challenge is therefore to protect the volcanic heritage, to communicate its values, and to enhance it with the help of adequate geotourism offers. Germany does not have active volcanism, but a very high quality volcanic geological heritage, especially from the Tertiary period. Fortunately, this heritage is being increasingly valued and presented in an attractive way for a lay audience. The two Geoparks in the Eifel (Rhineland-Palatinate) are pioneers in this field. The UNESCO Global Geopark Swabian Alb actually offers a well camouflaged potential. The Swabian volcano, with an area of 1600 km2, is one of the most important tuff vent areas on earth, but hardly known outside of expert groups. A comprehensive strategy for the geotouristic valorization of the Tertiary volcanic phenomena does not yet exist in the Geopark Swabian Alb.
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Ko, Kyoungtae, Sungwon Kim, and Yongsik Gihm. "U-Pb Age Dating and Geochemistry of Soft-Sediment Deformation Structure-Bearing Late Cretaceous Volcano-Sedimentary Basins in the SW Korean Peninsula and Their Tectonic Implications." Minerals 11, no. 5 (May 14, 2021): 520. http://dx.doi.org/10.3390/min11050520.

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Cretaceous volcano-sedimentary basins and successions in the Korean Peninsula are located along NE-SW- and NNE-SSW-trending sinistral strike–slip fault systems. Soft-sediment deformation structures (SSDS) of lacustrine sedimentary strata occur in the Wido, Buan, and Haenam areas of the southwestern Korean Peninsula. In this study, systematic geological, geochronological, and geochemical investigations of the volcanic-sedimentary successions were conducted to constrain the origin and timing of SSDS-bearing lacustrine strata. The SSDS-bearing strata is conformably underlain and overlain by volcanic rocks, and it contains much volcaniclastic sediment and is interbedded with tuffs. The studied SSDSs were interpreted to have formed by ground shaking during syndepositional earthquakes. U-Pb zircon ages of volcanic and volcaniclastic rocks within the studied volcano-sedimentary successions were ca. 87–84 Ma, indicating that active volcanism was concurrent with lacustrine sedimentation. Geochemical characteristics indicate that these mostly rhyolitic rocks are similar to subduction-related calc-alkaline volcanic rocks from an active continental margin. This suggests that the SSDSs in the study area were formed by earthquakes related to proximal volcanic activity due to the oblique subduction of the Paleo-Pacific Plate during the Late Cretaceous.
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KIM, ALICE, and NICOLE C. LAUTZE. "EARLY HAWAIIANS AND VOLCANIC HEAT." Earth Sciences History 39, no. 1 (January 1, 2020): 149–59. http://dx.doi.org/10.17704/1944-6187-39.1.146.

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This research serves as the first-known compilation of accounts of early Hawaiians using volcanic heat. Western explorers in the 1800s wrote about native Hawaiians near Kīlauea Volcano using volcanic heat for cooking and bathing. They cooked their food wrapped in leaves underground or above a steam crack at Sulphur Banks, Kīlauea Iki, and the Nāpau Crater Trail. Early Hawaiians bathed in the warm waters of Waiwelawela for health. To confirm the presence of volcanic heat, this study used geothermal resource maps by the Hawai‘i Play Fairway project. According to a probability map for volcanic heat, the areas where Hawaiians used volcanic heat have a probability of volcanic heat of 0.8 to 1.0. On a map with temperatures of water wells, water wells close to where Hawaiians used volcanic heat have elevated temperatures. Historically, the areas where Hawaiians used volcanic heat experienced volcanic steam release, volcanic eruptions, and lava flows.
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Harsolumakso, Agus Handoyo, Dardji Noeradi, Alfend Rudyawan, Dadan Amiarsa, Satryo Wicaksono, and Affan A. Nurfarhan. "Geology of the Eastern Part of the Volcanic-Kendeng Zone of East Java: Stratigraphy, Structures and Sedimentation Review from Besuki and Situbondo Areas." Jurnal Geologi dan Sumberdaya Mineral 20, no. 3 (July 8, 2019): 143. http://dx.doi.org/10.33332/jgsm.geologi.20.3.143-152.

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The Tertiary stratigraphy of Situbondo was constructed by a series of volcanoclastic-carbonate turbidite facies of Menuran Formation with Pacalan limestone Member, and Leprak Formation. These formations formed a regional east-west trending circular anticlinorium. The Tertiary formations were covered by Quaternary volcano-clastic Ringgit Formation and subsequent younger Bagor volcanic products. The oldest Tertiary rock units are the Late Miocene-Pliocene Menuran Formation, with Pacalan Limestone Member. Formation is mainly composed of foram-rich marls and calcareous, sometimes tuffaceous sandstones, with conglomerate intercalations. Sedimentation of this formation is interpreted as to be a mixing, from proximal to distal turbidite, involving volcaniclastic and carbonate sources, in a bathyal open marine environment. The Early Pliocene Leprak Formation overlies conformably the Menuran Formation, which consists of alternating calcareous sandstones and tuff sandstones deposited in a bathyal open marine environment with proximal turbidite mechanism suggesting that basin depocenter was located to the east. Up to Late Pliocene, the region was dominated by developments proximal turbidite volcanoclastic sedimentation of The Leprak Formation, contemporaneous with increasing volcanic activity in the south. Deformation of Plio-Pleistocene in Java is believed to be the last major tectonic period, which forms the west-east trending structures. In Situbondo area, folding structures in this direction involves the Neogene Menuran Formation, Pacalan Member and Leprak Formation. Volcanic activity persists, and increases, with the activity of Ringgit-Beser volcano in Pleistocene. These late events of magmatism, volcanism and uplift were contributed to the last structural configuration of the area.Keyword : Situbondo, structural geology, volcanic-kendeng zone, stratigraphy
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Dissertations / Theses on the topic "Volcanic areas"

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Wang, Yunshuen. "Petrology ot Tertiary (?) Volcanic Rocks of Snowville Area, Utah, and Tertiary-Quaternary (?) Volcanic Rocks of Table Mountain and Holbrook Areas, Idaho." DigitalCommons@USU, 1985. https://digitalcommons.usu.edu/etd/3830.

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Basalt flows occur in the Snowville area of north-central Utah and the Table Mountain and Holbrook areas of south-central Idaho. All basalt flows are aphanitic in groundmass, and contain olivine, plagioclase, augite, and opaque oxides. They can be distinguished by texture. Snowville basalt has predominantly subophitic to intergranular textures. Table Mountain basalt is fine grained, with stumpy groundmass plagioclase and equant ilmenite crystals. Holbrook basalt has pilotaxitic to intergranular textures, with the presence of plagioclase phenocrysts and characteristic exsolution lamellae in Fe-Ti oxides. The olivine grains in Holbrook area are intensely oxidized to Fe-Ti oxides. Snowville basalt contains olivine phenocrysts (Fo88 -Fo44 ) in a groundmass of olivine (Fo63 -Fo47), augite (Wo42 -Wo36), and plagioclase (An77-An52). The lower flow unit of Table Mountain basalt contains olivine phenocrysts (Fo88-?) in a groundmass of augite (Wo44 En44 Fs17), and plagioclase (An58-An48). The upper flow unit of Table Mountain basalt has olivine phenocrysts (Fo82-Fo65), plagioclase phenocrysts (An73-An67), and plagioclase groundmass (An64-An55). The Holbrook basalt is composed of olivine phenocrysts (Fo67-Fo57)and plagioclase phenocrysts (An68-An43 ) in a groundmass of olivine (Fo59Fos53) augite (Wo39 En44 Fs17), and plagioclase (An67-An35). The basalts of the Snowville and Holbrook areas, represent petrographic, mineralogical, and chemical characteristics of both olivine-tholeiitic basalt and alkali-olivine basalt, whereas Table Mountain upper and lower flow units show their affinity with alkali-olivine basalt. Chemically, basalts from these three areas are consistently high in silica, magnesium, and alkali content. The Snowville basalt has a high Ba content and high strontium isotope ratio. Fractional crystallization models indicate that the basalt flows from the three different areas are genetically unrelated. The testing also suggests that the upper and lower flow units of the Table Mountain area are not genetically related. The basalts of the three areas also can not be evolved from the basalts found at Kelton, the Rozel Hills or Black Mountain. Basalts of the Snowville area have consistently higher magnesium and silica contents than Snake River basalt, Kelton area basalt, and Rozel Hills and Black Mountain basalt, indicating that they may represent what was initially a very primitive basaltic lava. High Ba content and strontium isotope ratio indicate that the Snowville basalt was contaminated by crustal material. Table Mountain and Holbrook basalt may have formed as a result of partial melting from a pyrolite or garnet peridotite mantle.
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Pistorio, Antonio. "Experimental and Computational Approaches to Enhance the Gravimetric Monitoring of Volcanic Areas." Doctoral thesis, Università di Catania, 2013. http://hdl.handle.net/10761/1308.

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The aim of this thesis is to improve the techniques of the gravimetric method, by enhancing the quality of discrete gravity measurements and separating the gravity signals provided by the gravimeters in continuous recording during paroxysmal events, in the gravity field component and the inertial acceleration component to assess the amount of mass redistributed during such events. The preferred scenario for this study is Mt Etna not only because it is the most intensively monitored volcano in the world but also because there was the possibility to perform directly in the field gravity measurements, both discrete and continuous, with the instruments owned by the Istituto Nazionale di Geofisica e Vulcanologia (INGV) - Sezione di Catania - Osservatorio Etneo . In Chapter 1 is described the technical background gravimetric monitoring of active volcanoes in terms of measurements techniques with spring relative and absolute gravimeters. It also discusses on the complexity of the gravity signal and on different gravity contributions that must be quantified in volcanic areas. Finally it presents the existing gravity monitoring network of Mt Etna. In Chapter 2 are shown the results of measurements conducted using two ballistic absolute gravimeters in two different conditions: in dedicated gravity laboratories and in a place used for geophysical studies (volcano monitoring) which present unfavourable environmental conditions (low temperature, high humidity, high ground vibration, etc.). The chosen instruments represent the steady advance in ballistic gravimeter technology: the FG5#238, a commercial instrument produced by the U.S.A. Micro-g LaCoste Inc. and the IMGC-02, developed in Italy by the Istituto Nazionale di Ricerca Metrologica (INRiM) (prototype). Besides, the IMGC-02 is recognized as national standards instrument in Italy and generally the FG5 (family) is more commonly employed for the absolute gravity studies while, specifically, the FG5#238 gravimeter is normally used for different applications from volcano monitoring to the study of gas storage areas. In Chapter 3 was investigated the applicability of combined measurements of absolute and relative gravity as a hybrid method for volcano monitoring, in order to improve the quality of discrete gravity measurements and to achieve a balance between uncertainty and efficiency in gravity measurements. The use of absolute gravimeters in a field survey of the summit area of Mt Etna is unprecedented. Between 2007 and 2009, three hybrid gravity surveys were conducted at Mt Etna volcano, in June 2007, July 2008, and July 2009. Results allowed to increase the knowledge of the dynamics of the volcano through an accurate determination of the position and shape of the volcanic sources. In Chapter 4, to evaluate the coupling degree between inertial acceleration components and the gravity signal provided by spring relative gravity meters, the results of a laboratory tests on a Scintrex CG-3M and on a LaCoste & Romberg model D gravimeters using a vibrating platform to excite them along the x, y and z axes will be explained. For this purpose, to extract the parameters with which to excite the vibrating platform, the seismic signals recorded at two different stations during the 10 April 2011 lava fountain, one of the strongest paroxysmal episode in 2011 eruptive events, were analyzed. Finally, to separate the signal from the gravimeter into gravity field contribute due to the subsurface mass or density variations and the inertial acceleration components due to the ground oscillation, a mathematical approach based on the neural network was also proposed.
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GAGLIANO, Antonina Lisa. "Gaseous emissions from geothermal and volcanic areas: focus on methane and methanotrophs." Doctoral thesis, Università degli Studi di Palermo, 2014. http://hdl.handle.net/10447/90855.

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Ogni anno, 22 Tg di CH4 vengono rilasciati in atmosfera da numerose sorgenti sia naturali che antropiche. Il metano riveste un ruolo molto importante nella chimica dell’atmosfera terrestre e nel bilancio dell’energia radiante assorbita, essendo il secondo gas serra più potente dopo la CO2. Le aree vulcaniche e geotermali contribuiscono al flusso di metano in atmosfera, essendo vaste aree di degassamento. Studi preliminari hanno stimato che le emissioni globali di metano dai sistemi geotermali e vulcanici europei sono nel range di 4-16 kt a-1. Questa stima è stata ottenuta indirettamente dai dati delle emissioni di CO2 o H2O e dal rapporto del flusso CO2/CH4 oppure H2O/CH4 misurati nelle principali fumarole. La stima del metano emesso globalmente dalle aree vulcaniche e geotermali non è ancora ben definita in quanto il bilancio tra le emissioni per degassamento dai suoli e il consumo di metano per ossidazione microbica è ancora poco noto. Inoltre, le misure di flusso di metano sono molto difficili da eseguire e si hanno a disposizioni pochi dati. Alcuni metodi, seppur accettabili al fine di ottenere stime sul flusso di metano, escludono completamente la possibilità che il metano venga rimosso per via microbica dai batteri metanotrofi. A scala globale, l’ossidazione microbica del metano contribuisce alla rimozione di circa il 3-9% del metano dall’atmosfera. Ma l’importanza dei batteri metanotrofi è ancora maggiore in quanto questi ossidano la maggior parte del metano prodotto nel suolo e nel sottosuolo prima che questo raggiunga l’atmosfera. Le condizioni ambientali dei suoli vulcanici e geotermali (ad esempio scarso contenuto in ossigeno, alta temperature, attività protonica, ect.) sono stati da sempre considerati inospitali per i batteri metanotrofi. Tuttavia, di recente è stata dimostrata la presenza di batteri acidofili e termofili appartenenti al phylum dei Verrucomicrobia. Questi organismi sono stati individuati alla Solfatara di Pozzuoli (Italia), ad Hell’s gate (Nuova Zelanda) ed in Kamchatka (Russia). Qui riportiamo l’attività metanotrofa riscontrata nei suoli dell’Isola di Pantelleria (Italia), dell’Isola di Vulcano (Italia), di Sousaki (Grecia), di Nea Kameni- Santorini (Grecia), e dell’Isola di Nisyros (Grecia). Evidenze di rimozione microbica del metano in questi suoli era già stata riscontrata nel rapporto dei flussi di CO2/CH4, che risultava sempre inferiore rispetto a quello atteso, indicando una perdita di CH4 durante il suo movimento verso la superficie. Esperimenti per la misura del consumo di metano sono stati eseguiti usando i suoli di Pantelleria, Vulcano, Nea kameni, Nisyros e Sousaki. Questi esperimenti hanno rivelato tassi di consumo fino a 950, 48, 15, 39 e 520 ng CH4 h-1 per ogni grammo di suolo (peso secco), rispettivamente. Solo pochi campioni non hanno indicato consumo di metano. L’analisi dei gas del suolo e le caratteristiche chimico-fisiche del suolo ci hanno permesso di discriminare i fattori principali che influenzano la presenza dei metanotrofi e il tasso dei consumo del metano. La composizione del gas dal suoli, e in particolare il contenuto di CH4 e di H2S rappresentano il fattore discriminate per i metanotrofi. infatti, l’isola d Vulcano e di Nisyros, il cui contenuto in H2S raggiunge circa 250000 ppm, mostrano i consumi più bassi. In aggiunta nei suoli geotermali e vulcanici l’H2S contribuisce all’abbassamento del pH dei suoli. I valori di consuma maggiori sono stati misurati nell’isola di Pantelleria dove l’H 2S è meno di 20 ppm e il pH è vicino alla neutralità. Analisi microbiologiche e molecolari hanno permesso di riscontrare nei suoli di Pantelleria la presenza di batteri metanotrofi affiliati ai Gamma ed agli Alfa-Proteobatteri ed agli acido-termofili Verrucomicrobia. Il metanotrofo coltivabile appartenete al genere Methylocystis (Alfaproteobatterio) e il Gammaproteobatterio Methylobacterium sono stati isolati attraverso colture di arricchimento. Gli isolati mostrano ampi range di tolleranza di pH e temperatura e un tasso di ossidazione fino a 450 ppm/h. Attraverso l’amplificazione del gene pmoA, basandosi sui metodi coltura-indipendenti è stata rivelata un’ampia diversità di batteri metanotrofi appartenenti ai Proteobatteri (α- e γ-) ed ai Verrucomicrobia. Questo è il primo report in cui si dimostra la coesistenza di entrambi i phyla di metanotrofi in un sito geotermale/vulcanico. La presenza dei metanotrofi Proteobatteri era inaspettata perché le condizioni di sito sono state considerate inadeguate e può essere spiegata del pH non eccessivamente basso (>5) di questo specifico sito geotermale. Queste specie possono aver trovato la loro nicchia negli strati più superficiali dei suoli di Favara Grande a Pantelleria dove le temperature non sono così alte ed è presente una forte risalita di metano. capire l’ecologia dei metanotrofi nei siti geotermali e vulcanici aumenterà le conoscenze nel loro ruolo nelle emissioni di metano in atmosfera.
Yearly, 22 Tg of CH4 are released in to the atmosphere from several natural and anthropogenic sources. Methane plays an important role in the Earth’s atmospheric chemistry and radiative balance being the most important greenhouse gas after carbon dioxide. Volcanic/geothermal areas contribute to the methane flux, being the site of widespread diffuse degassing of endogenous gases. Preliminary studies estimated a total CH4 emission from European geothermal and volcanic systems in the range 4-16 kt a-1. This estimate was obtained indirectly from CO2 or H2O output data and from CO2/CH4 or H2O/CH4 values measured in the main gaseous manifestations. The total estimated CH4 emission from geothermal/volcanic areas is still not well defined since the balance between emission through degassing and consumption through soil microbial oxidation is poorly known. Moreover, methane soil flux measurements are laboratory intensive and very few data have been collected until now in these areas. Such methods, although acceptable to obtain order-of-magnitude estimates, completely disregards possible methane microbial oxidation within the soil carried on by the methanotrophs. At the global scale, microbial oxidation in soils contributes for about 3-9% to the total removal of methane from the atmosphere. But the importance of methanotrophic organisms is even larger because they oxidize the greatest part of the methane produced in the soil and in the subsoil before its emission to the atmosphere. Environmental conditions in the soils of volcanic/geothermal areas (i.e. low oxygen content, high temperature and proton activity, etc.) have long been considered inadequate for methanotrophic microorganisms. But recently, it has been demonstrated that methanotrophic consumption in soils occurs also under such harsh conditions due to the presence of acidophilic and thermophilic Verrucomicrobia. These organisms were found in Italy at the Solfatara at Pozzuol (Italy), at Hell’s Gate (New Zealand) and in Kamchatka (Russia), pointing to a worldwide distribution. Here we report on methane oxidation rate measured in Pantelleria Island (Italy), Vulcano Island (Italy), Sousaki (Greece), Nea Kameni (Santorini) and Nisyros (Greece) soils. Clues of methane microbial oxidation in soils of these areas can be already found in the CH4/CO2 ratio of the flux measurements which is always lower than that of the respective fumarolic manifestations indicating a loss of CH4 during the travel of the gases towards earth’s surface. Laboratory methane consumption experiments made on soils collected at Pantelleria, Vulcano, Nea Kameni, Nysiros and Sousaki revealed for most samples consumption rates up to 950, 48, 15, 39 and 520 ng CH4 h-1 for each gram of soil (dry weight), respectively. Only few soil samples displayed no methane consumption activity. Analysis on soil gases and chemical-physical characteristics of the soils allowed us to discriminate the main factors that influenced the methanotrophs presence and the methane consumption rate. Soil gases composition, and in particular the amount of the CH4 and H2S, represent the main discriminating factor for methanotrophs. In fact, Vulcano and Nisyros Island, whose soil gas contained up to 250000 ppm of H2S, showed the lowest consumption rate. Moreover, in geothermal/volcanic soils H2S contribute to the soil pH lowering; highest methane consumption were recorded in Pantelleria island were H2S is less than 20 ppm and pH close to the neutrality were measured. Microbiological and molecular analyses allowed to detect the presence of methanotrophs affiliated to Gamma and Alpha-Proteobacteria and to the newly discovered acido-thermophilic methanotrophs belong to the Verrucomicrobia phylum in soils from Pantelleria. Culturable methanotrophic Alphaproteobacteria of the genus Methylocystis and the Gammaproteobacteria Methylobacterium were isolated by enrichment cultures. The isolates show a wide range of tolerance to pH and temperatures and an average methane oxidation rate up to 450 ppm/h. A larger diversity of (α- and γ-) proteobacterial and verrucomicrobial methanotrophs was detected by a culture-independent approach based on the amplification of the methane mono-oxygenase gene pmoA. This is the first report describing coexistence of both the methanotrophic phyla (Verrucomicrobia and Protebacteria) in the same geothermal site. The presence of proteobacterial methanoptrophs, in fact, was quite unexpected because they are generally considered not adapted to live in such harsh environments and could be explained by not really low pH values (> 5) of this specific geothermal site. Such species could have found their niches in the shallowest part of the soils of Favara Grande were the temperatures are not so high and thrive on the abundant upraising methane. Understanding the ecology of methanotrophy in geothermal sites will increase our knowledge of their role in methane emissions to the atmosphere.
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Strauss, Simon Yale. "Marginal protection : sustainable development, social resilience and migration within natural protected areas of the Trans-Mexican Volcanic Belt, central Mexico." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99609.

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Natural protected areas are places intended to protect nature, but it is now accepted that their social impact must be compatible with the ideals of 'sustainable development': they must conserve nature while improving, or at least not injuring, the socio-economic status of human communities. In Mexico, recent conservation policy has emphasized the creation of biosphere reserves, a type of protected area designed as a practical application of the concept of sustainable development. Previous research has shown that in Mexico and elsewhere, such reserves are often created in areas that are environmentally marginal and where, therefore, the lives and livelihoods of inhabitants are precarious at best. This makes the dual challenges of protecting nature and aiding social and economic development particularly acute. This study explores these challenges by considering the socio-economic patterns within protected areas along the Trans-Mexican Volcanic Belt of central Mexico. The study measured sustainable development, as indexed by the Mexican government, at both the regional and local scales, combining census data and interviews with residents in the Sierra Gorda Reserve. This combination of methodologies allowed for a fuller description of the social impacts of protected areas at different scales. The study found that while overall the lives of residents in or near natural protected areas improved steadily between 1990 and 2000, these areas are also characterized by high migration levels and an aging population, which may threaten the future sustainability of these communities. The study concludes by suggesting that migration is a key factor which should be included in Mexico's assessments of sustainable development, and that the concept of a community's social resilience is extremely useful in informing future studies.
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Corcoran, Patricia Lynn. "Physical volcanology, geochemistry, and tectonic evolution of three selected areas in the Point Lake and Beaulieu River volcanic belts, Slave Province, Northwest Territories, Canada." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ66650.pdf.

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Christianson, Amy Nadine. "Assessing and improving the effectiveness of staff training and warning system response at Whakapapa and Turoa ski areas, Mt. Ruapehu." Thesis, University of Canterbury. Geological Sciences, 2006. http://hdl.handle.net/10092/1271.

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Ruapehu is an active volcano located on the North Island of New Zealand, with the most recent major eruptions occurring in 1945, 1969, 1975, and 1995/96. Ruapehu is also home to the three major North Island ski areas, Whakapapa, Turoa, and Tukino. Because of the high frequency of eruptions, there is a significant volcanic hazard at the ski areas particularly from lahars which can form even after minor eruptions. Most recently, lahars have affected Whakapapa ski area in 1969, 1975, and 1995/96. The most significant risk at Turoa is from ballistic bombs due to the proximity of the top two T-Bars to the crater. Ash fall has also caused disruption at the ski areas, covering the snow and causing damage to structures. There is yet to be a death at the ski areas from a volcanic event; however the risk at the ski areas is too high to be completely ignored. The ski areas at Whakapapa and Turoa are currently operated by Ruapehu Alpine Lifts (RAL), who have been significantly improving their commitment to providing volcanic hazard training for their staff and preparing for handling a volcanic eruption. RAL is joined by the Institute of Geological Sciences (GNS) and the Department of Conservation (DoC) in trying to mitigate this risk through a range of initiatives, including an automated Eruption Detection System (EDS), linked to sirens and loudspeakers on Whakapapa ski areas, as well as by providing staff training and public education. The aim of this study was to provide RAL with recommendations to improve their staff training and warning system response. Staff induction week at both Turoa and Whakapapa ski areas was observed. Surveys were distributed and collected from staff at both ski areas, and interviews were conducted with staff at Whakapapa ski area. Data obtained from staff interviews and surveys provided the author with insight into staff's mental models regarding a volcanic event response. A simulation of the warning system was observed, as well as a blind test, to collect data on the effectiveness of training on staff response. Results indicated permanent and seasonal staff were knowledgeable of the volcanic hazards that may affect the ski areas, but had differing perspectives on the risk associated with those hazards. They were found to be confident in the initial response to a volcanic event (i.e. move to higher ground), but were unsure of what would happen after this initial response. RAL was also found to have greatly improved their volcanic hazard training in the past year, however further recommendations were suggested to increase training effectiveness. A training needs analysis was done for different departments at the ski areas by taking a new approach of anticipating demands staff may encounter during a volcanic event and complementing these demands with existing staff competencies. Additional recommendations were made to assist RAL in developing an effective plan to use when responding to volcanic events, as well as other changes that could be made to improve the likelihood of customer safety at the ski areas during an eruption.
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Okubo, Ayako. "Studies on geomagnetic spatial and temporal variations in volcanic area." 京都大学 (Kyoto University), 2005. http://hdl.handle.net/2433/145088.

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Kyoto University (京都大学)
0048
新制・課程博士
博士(理学)
甲第11320号
理博第2878号
新制||理||1430(附属図書館)
22963
UT51-2005-D71
京都大学大学院理学研究科地球惑星科学専攻
(主査)教授 田中 良和, 教授 大志万 直人, 教授 鍵山 恒臣
学位規則第4条第1項該当
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Spedalieri, Giancarlo. "Unravelling volcanic tremor source at mount etna from quantitative multiparametric analysis and moment tenso inversion." Doctoral thesis, Università di Catania, 2019. http://hdl.handle.net/10761/4134.

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UNRAVELLING VOLCANIC TREMOR SOURCE AT MOUNT ETNA FROM QUANTITATIVE MULTIPARAMETRIC ANALYSIS AND MOMENT TENSOR INVERSION Developments of multiparametric monitoring networks, real time analysis techniques and the acquisition of high-resolution data, have allowed to improve the knowledge of the structures and dynamics that characterize the active volcanoes. To understand the dynamics of an active volcano, it is possible to proceed with two different types of studies: i) multiparametric studies based on the joint analysis of different data (such as geophysical, geochemical, petrological data); ii) detailed studies concerning specific data. In order to understand source volcanic tremor at Mt. Etna volcano, volcanic tremor recorded during the vigorous summit of 2011-2012 was analyzed. In particular, this thesis shows the results obtained from the investigation of the volcanic tremor source through a duplex study: i) a multiparametric study based on the quantitative comparison between different time series such as volcanic tremor amplitudes and geochemical data such as soil CO2 flux and the SO2 flux at summit craters; ii) a moment tensor inversion analysis of volcanic tremor recorded during a lava fountain episode of the considered period. For these studies, data acquired from the multiparametric monitoring network managed by Istituto Nazionale di Geofisica e Vulcanologia were used.The quantitative comparison between seismic and geochemical data was performed in order to identify and quantitatively estimate similar trends variations between the compared time series, both synchronous and characterized by time lags. To this end, four different analysis techniques have been implemented, such as Cross-Correlation, Randomized Cross-Correlation, wavelet analysis and linear regression. The obtained results allowed to infer pressurization and depressurization dynamics of the plumbing system during the different eruptive phases observed during the considered period. The moment tensor inversion analysis of the volcanic tremor recorded at Mt. Etna represents a novelty. Specifically, this analysis was applied to volcanic tremor recorded during the lava fountain episode that occurred on 5 August 2011, one of the most vigorous of the 25 episodes that characterized the 2011-2012 period. The results allowed to highlight a source mechanism generated by a sub-horizontal crack near the summit crater area, which can be interpreted as a valve through which gas-rich magma is ejected during the lava fountain activities.
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9

Leahy, Kevin. "The geology of kimberlites from the Fort a la Corne area, Saskatchewan, Canada." Thesis, University of Leeds, 1996. http://etheses.whiterose.ac.uk/283/.

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Kimberlites have been recently discovered beneath 100m of glacial sediment at Fort a la Come, Saskatchewan, Canada. Crater and extra-crater facies have been intersected in borehole core, interstratified with coastal and marine sediments of Cretaceous age. Extra-crater kimberlite is very rare, and particularly well preserved at Fort a la Come. It is encountered in five borehole intersections drilled by Rhonda Mining Corporation, sponsors of the Operation Fish Scale project, which included kimberlite research at the University of Leeds. The regional setting and geological description of six kimberlite borehole intersections are presented. In addition, the broad geodynamic conditions and the stratigraphic context are described, and from these a model for kimberlite eruption is constructed. The kimberlites are then described at a range of scales from stratal thickness and disposition, to ultra-fine diagenetic mineral growth. A textural classification is then applied to the deposits. The volcanology of the Fort a la Cone kimberlites are then discussed: these are unusual in that the craters are preserved, and are broad and flat, rather than steep sided tapering cones. A new term, pateran crater, and process of evolution is proposed for these and other kimberlites of similar morphology. The survival of these volcanic edifices in the sedimentary environment is also considered. The geochemistry of the kimberlites is presented, both bulk rock, and over 450 analyses of individual mineral grains by electron microprobe. These minerals are mostly gamet, ilmenite and pyroxene, of megacryst, kimberlite, crust, mantle peridotite and eclogite origin. The mineral chemistries are compared to those found in other kimberlites around the world, and the nature of the cratonic lithosphere is described. The P-T and compositional characteristics of the lithosphere are further refined from diamond and garnet trace element chemistry in collaborative works with Taylor and Griffin, described herein. Economic aspects of the kimberlites are reviewed, and all the conclusions are presented in time order, from diamond growth in the Archean, crustal evolution in the Mid-Proterozoic, Early Cretaceous magma generation and eruption, to Late Cretaceous reworking and burial.
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Thorkelson, Derek John Carleton University Dissertation Geology. "Volcanic and tectonic evolution of the Hazelton group in Spatsizi river (104H) map-area, north-central British Columbia." Ottawa, 1992.

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Books on the topic "Volcanic areas"

1

Groppelli, Gianluca. Stratigraphy and geology of volcanic areas. Boulder, Colo: Geological Society of America, 2010.

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Groppelli, Gianluca. Stratigraphy and geology of volcanic areas. Boulder, Colo: Geological Society of America, 2010.

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Gianluca, Groppelli, and Viereck-Goette Lothar, eds. Stratigraphy and geology of volcanic areas. Boulder, Colo: Geological Society of America, 2010.

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Philippine Council for Agriculture, Forestry and Natural Resources Research and Development., National Disaster Coordinating Council (Philippines), and Philippines. National Mapping and Resource Information Authority., eds. Protecting and restoring calamity areas. Los Baños, Laguna: Philippine Council for Agriculture, Forestry and Natural Resources Research and Development, 1998.

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Lipman, Peter W. Rare-earth-element compositions of Cenozoic volcanic rocks in the southern Rocky Mountains and adjacent areas. [Washington, D.C.]: Dept. of the Interior, U.S. Geological Survey, 1987.

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Lipman, Peter W. Rare-earth-element compositions of Cenozoic volcanic rocks in the southern Rocky Mountains and adjacent areas. Washington, DC: U.S. Geological Survey, 1987.

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Sorey, M. L. Measurements of heat and mass flow from thermal areas in Lassen Volcanic National Park, California, 1984-93. Menlo Park, Calif: U.S. Geological Survey, 1994.

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Ilbosa, Halla, ed. Cheju hwasansŏm kwa yongam tonggul: Sajin ŭro ponŭn segye chayŏn yusan = Jeju volcanic island and lava tubes : UNESCO World Natural Heritage. Cheju-si: Halla Ilbosa, 2007.

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P, Lockwood John, Evans W. C, Geological Survey (U.S.), and United States. Agency for International Development. Office of Foreign Disaster Assistance, eds. Natural hazards associated with Lake Kivu and adjoining areas of the Birunga volcanic field, Rwanda and Zaire, central Africa: Final report. [Denver, CO]: U.S. Geological Survey, 1990.

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D, Rowley Peter, ed. Isotopic ages and stratigraphy of Cenozoic rocks of the Marysvale volcanic field and adjacent areas, west-central Utah. Washington: U.S. G.P.O., 1994.

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Book chapters on the topic "Volcanic areas"

1

De Natale, G., and F. Pingue. "Ground Deformation Modeling in Volcanic Areas." In Monitoring and Mitigation of Volcano Hazards, 365–88. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80087-0_11.

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Horai, Ki-Iti, and Seiya Uyeda. "Terrestrial Heat Flow in Volcanic Areas." In The Earth's Crust and Upper Mantle, 95–109. Washington, D. C.: American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm013p0095.

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Monnin, M. M. "Radon Over Volcanic and Seismic Areas." In Radionuclides and Heavy Metals in Environment, 319–30. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0993-5_44.

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Kaneko, Naoto, and Hiroyuki Nagahama. "Thermodynamic Consideration on Volcanic Landforms." In Paleobiodiversity and Tectono-Sedimentary Records in the Mediterranean Tethys and Related Eastern Areas, 285–88. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-01452-0_68.

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Nasution, Asnawir. "The geothermal energy resource developments and their hazards of the Indonesia Volcanic Areas." In Rock Mechanics and Engineering Geology in Volcanic Fields, 159–67. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003293590-22.

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Beltrán-Yanes, Esther, and Isabel Esquivel-Sigut. "The Vegetation Landscapes of a Oceanic Recent Volcanic Island." In Geoheritage, Geoparks and Geotourism, 53–63. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-07289-5_5.

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AbstractThe aim of this chapter is to characterise the vegetation landscapes of El Hierro’s Geopark, highlighting the important role played by the island’s volcanic morphology in the richness and diversity of its landscapes. To this end, some of its most representative vegetation landscapes have been selected at various spatial scales, recognising their main discontinuities and internal organisation, and identifying the integrated combinations of the geographical factors that determine them have been identified, with special interest in the volcanic morphostructural conditioning factors. This work has required photointerpretation of aerial images and consultation of the WMS (Web Map Service) of IdeCanarias, as well as field work for the preparation of vegetation profiles and floristic-physiognomic inventories. Active volcanic areas are distinguished by being some of the most dynamic types of landscape on the planet. In this sense, the study of the vegetation landscapes of the small island of El Hierro allows us to discover how volcanic morphogenesis can extraordinarily diversify island landscapes.
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Charco, María, and Pedro Galán del Sastre. "Finite Element Numerical Solution for Modelling Ground Deformation in Volcanic Areas." In Understanding Complex Systems, 223–37. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-20853-9_16.

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Battaglia, M., and P. Segall. "The Interpretation of Gravity Changes and Crustal Deformation in Active Volcanic Areas." In Geodetic and Geophysical Effects Associated with Seismic and Volcanic Hazards, 1453–67. Basel: Birkhäuser Basel, 2004. http://dx.doi.org/10.1007/978-3-0348-7897-5_10.

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Pecoraino, Giovannella, Walter D’Alessandro, and Salvatore Inguaggiato. "The Other Side of the Coin: Geochemistry of Alkaline Lakes in Volcanic Areas." In Advances in Volcanology, 219–37. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-36833-2_9.

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Mora-Mussio, Jasson. "Youth Engagement and the Water–Energy–Land Nexus in Costa Rica." In Sustainable Development Goals Series, 113–23. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-05182-1_10.

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AbstractThe water–energy–land nexus methodology proposes land management treatment based on watershed areas, considering the Sustainable Development Goals (SDG) objectives of SDG 6 Clean Water and Sanitation and SDG 7 Affordable and Clean Energy, and the evolution of governance. This framework was applied in two volcanic watersheds using open-source geodata methods. The results explain the governance evolution by stakeholder’s types and their activities around the water, land, and energy distribution and land evolution.
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Conference papers on the topic "Volcanic areas"

1

Wenyan, Feng, Zhang Zhongping, Yang Zhanjun, Lei Dong, and Zhang Wei. "Seismic–magnetic–integrated interpretation for shallow volcanics in volcanic–covered areas." In SPG/SEG 2016 International Geophysical Conference, Beijing, China, 20-22 April 2016. Society of Exploration Geophysicists and Society of Petroleum Geophysicists, 2016. http://dx.doi.org/10.1190/igcbeijing2016-063.

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Зонов, Ю. Б., and О. В. Левченко. "ZONING OF LANDSCAPES AREAS OF THE MODERN VOLCANISM OF KAMCHATKA." In Геосистемы Северо-Восточной Азии. Crossref, 2021. http://dx.doi.org/10.35735/tig.2021.11.81.016.

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В настоящей статье сделана попытка провести зонирование ландшафтов районов современного вулканизма Камчатки и выявить пространства с типовыми природными признаками. Эти признаки напрямую коррелируются со степенью интенсивности и характером проявления современного вулканизма. Рассматривается ландшафтообразующая роль современного вулканизма, которая заключается в модификации ландшафтов различного ранга в зависимости от объёма и типа поступающего вулканического материала. In this article, an attempt is made to zoning the landscapes of the areas of modern volcanism in Kamchatka and to identify spaces with typical natural features. These signs are directly correlated with the degree of intensity and nature of the manifestation of modern volcanism. The landscape-forming role of modern volcanism is considered, which consists in the modification of landscapes of various ranks, depending on the volume and type of incoming volcanic material.
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Satyana, A. H. "Trilogy Of Southeast Sundaland Terranes: Re-Uniting Drifted Terranes of Southeast Sundaland Using Common Marker ff The Late Cretaceous Volcanics to Volcanic-Clastics of The Meratus Mountains, South Sulawesi, And Sumba - Implications For Petroleum Opportunities." In Indonesian Petroleum Association 44th Annual Convention and Exhibition. Indonesian Petroleum Association, 2021. http://dx.doi.org/10.29118/ipa21-g-39.

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Amalgamation and dispersion of terranes characterized the growth and slivering of Southeast Sundaland into the present configuration of central Indonesia. Amalgamation of the Paternoster-West Sulawesi terrane which docked, in mid-Cretaceous time, onto the Southwest Borneo terrane, thus closed the Meso-Tethys Ocean at the Meratus suture. This made Sundaland expand its area to the east and southeast. In the Late Cretaceous time, the Ceno-Tethys oceanic plate subducted beneath Southeast Sundaland, giving rise to coeval volcanism in the Meratus Mountains and the surrounding areas. Dispersion of some terranes in Southeast Sundaland occurred in the Paleogene through successive rifting and the opening of the Makassar Straits and the Flores Sea, with an eastern drift of South Sulawesi and Sumba away from Southeast Kalimantan to their present positions. Prior to the dispersion, the Meratus Mountains, South Sulawesi, and Sumba (called here the Trilogy of Southeast Sundaland) were united or adjacent to each other and underwent similar Late Cretaceous volcanism. The Late Cretaceous Volcanics and/or Volcanic-Clastics are therefore the common marker of their union. Our field studies in 2018-2019 at Sumba, South Sulawesi, and the Meratus Mountains (South Kalimantan) in the program, called the “Trilogy of Southeast Sundaland Terranes,” sampled the Late Cretaceous volcanics/ volcanic-clastics in these areas to prove that they were once united. Petrographic, petrochemical, isotopic, and geochronological data of the rock formations, based on the recent and previous analyses, show that these rocks, in the three terranes, are co-genetic spatially and temporally thus indicating their previous unity. The paired Paleogene dispersions of South Sulawesi from South Kalimantan, and successively Sumba from South Sulawesi, had resulted in rifted structures in the present Makassar Straits, the Flores Sea, and offshore Sumba. The rifted structures contain source rocks, reservoirs, seals, and structural-stratigraphic traps. Oil has been discovered therein, so further exploration is required since these objectives have not been sufficiently explored in the past and are thus still interesting.
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TONELLI, ARNALDO M. "MULTITEMPORAL THERMOGRAPHY AIMED AT MONITORING VOLCANIC AREAS." In Proceedings of the First International Workshop on Multitemp 2001. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812777249_0030.

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Hort, Matthias, and Klemen Zaksek. "Managing volcanic unrest: The mobile volcano fast response system." In 2008 Second Workshop on Use of Remote Sensing Techniques for Monitoring Volcanoes and Seismogenic Areas (USEReST). IEEE, 2008. http://dx.doi.org/10.1109/userest.2008.4740358.

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Septama, E. "Java Volcanic Arc, what lies beneath?" In Indonesian Petroleum Association 44th Annual Convention and Exhibition. Indonesian Petroleum Association, 2021. http://dx.doi.org/10.29118/ipa21-g-257.

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Java Island is an active volcanic arc that resides in the southwestern - southern boundary of Sundaland edges. The volcanic arc consists of several volcanism episodes, with a relatively younging trend northward (Late Oligocene to Pleistocene), following the Indo-Australian plates inward migration. In contrast to the prolific neighboring Northwest and Northeast Java Basins in the Northern edges of Java Island; the basin reconstruction and development in the East-West trending depression in median ranges of Java (from Bogor to Kendeng Troughs) are overlooked and lays bare the challenge to the seismic imaging due to the structural complexity of the overthrusted Neogene unit as well as immense Quaternary volcanic eruption covers. On the other hand, oil and gas seepages around the northern and central parts of the Island confirmed the active petroleum generation. Five focused window areas are selected for this study. A total of 1,893 Km sections, 584 rock samples, 1569 gravity, and magnetic data, and 29 geochemical samples (rocks, oil, and gas samples) were acquired during the study. Geological fieldwork was focused on the stratigraphic unit composition and the observable features of deformation products from the outcrops. Due to the scarcity of the Paleogene deposit exposure in the Central-East Java area, the rock samples were also collected from the mud volcano ejected materials in the Sangiran Dome. Both Bogor and Kendeng Troughs are active petroleum systems that generate type II /III Kerogen typical to the reduction organic material derived from transition to the shallow marine environment. The result suggests that these basins are secular from the neighboring basins, The Northwest and Northeast Java Basins, characterized by oxidized terrigenous type III Kerogen. The contrasting subsurface configuration between Bogor and Kendeng Troughs mainly concerns the fold-thrust belt basement involvement and the tectonic shortening effect on the formerly rift basin.
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Supper, R., A. Römer, B. Meurers, R. Di Maio, and K. Aric. "Geophysical measurements in volcanic areas: vulcano and lipari." In 8th EEGS-ES Meeting. European Association of Geoscientists & Engineers, 2002. http://dx.doi.org/10.3997/2214-4609.201406176.

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Withers, Robert J., Dwight E. Eggers, and Terry J. Crebs. "Case study of integrated exploration in volcanic‐covered areas." In SEG Technical Program Expanded Abstracts 1990. Society of Exploration Geophysicists, 1990. http://dx.doi.org/10.1190/1.1890327.

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Weyer, U., F. May, and J. C. Ellis. "Association between Discharge Areas of Groundwater and Volcanic CO2." In Third EAGE CO2 Geological Storage Workshop. Netherlands: EAGE Publications BV, 2012. http://dx.doi.org/10.3997/2214-4609.20143821.

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SCANDURA, D., A. BONACCORSO, G. CURRENTI, and C. DEL NEGRO. "THERMO-MECHANICAL MODELING OF GROUND DEFORMATION IN VOLCANIC AREAS." In Selected Contributions from the 9th SIMAI Conference. WORLD SCIENTIFIC, 2009. http://dx.doi.org/10.1142/9789814280303_0047.

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Reports on the topic "Volcanic areas"

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Hackett, W. R., and R. P. Smith. Volcanic hazards of the Idaho National Engineering Laboratory and adjacent areas. Office of Scientific and Technical Information (OSTI), December 1994. http://dx.doi.org/10.2172/653932.

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WoldeGabriel, G. Hydrothermal systems in two areas of the Jemez volcanic field: Sulphur Springs and the Cochiti mining district. Office of Scientific and Technical Information (OSTI), March 1989. http://dx.doi.org/10.2172/6513705.

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Haggart, J. W., L. T. Dafoe, K. M. Bell, G L Williams, E. T. Burden, L. D. Currie, R. A. Fensome, and A. R. Sweet. Historical development of a litho- and biostratigraphic framework for onshore Cretaceous-Paleocene deposits along western Baffin Bay. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/321828.

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Cretaceous-Paleogene strata along the eastern coast of Baffin Island, on Bylot Island, and on associated islands north of Cape Dyer, have been known since the early days of exploration of Baffin Bay in the mid-nineteenth century. Studies of these strata in the 1970s-1990s established their clastic nature and revealed details of their stratigraphy, ages, and depositional settings. Onshore strata in the Cape Dyer area accumulated in close association with volcanic deposits related to late-stage rifting in the Late Cretaceous to Early Paleocene that eventually formed Baffin Bay. In contrast, deposits in more northerly areas, such as the Eclipse and North Bylot troughs on Bylot Island, exhibit similar clastic rocks, but lack conspicuous volcanic strata, and have been associated with either the Sverdrup Basin or the Baffin Bay rift. The litho- and biostratigraphy of these deposits are summarized and discussed in terms of differing and contrasting stratigraphic interpretations, age assignments, and depositional environments.
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Haskin, M. L., L. D. Snyder, and R. G. Anderson. Tertiary Endako Group volcanic and sedimentary rocks at four sites in the Nechako River and Fort Fraser map areas, central British Columbia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1998. http://dx.doi.org/10.4095/209498.

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Mortensen, J. K., J. B. Henderson, V. A. Jackson, and W. A. Padgham. U - Pb Geochronology of Yellowknife Supergroup Felsic Volcanic Rocks in the Russell Lake and Clan Lake Areas, southwestern Slave Pronivce, Northwest Territories. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1992. http://dx.doi.org/10.4095/132905.

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Albright, Jeff, Kim Struthers, Lisa Baril, and Mark Brunson. Natural resource conditions at Valles Caldera National Preserve: Findings & management considerations for selected resources. National Park Service, June 2022. http://dx.doi.org/10.36967/nrr-2293731.

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Valles Caldera National Preserve (VALL) encompasses 35,977 ha (88,900 ac) in the Jemez Mountains of north-central New Mexico and is surrounded by the Santa Fe National Forest, the Pueblo of Santa Clara, and Bandelier National Monument. VALL’s explosive volcanic origin, about 1.23 million years ago, formed the Valles Caldera—a broad, 19- to 24-km (12- to 15-mi) wide circular depression. It is one of the world’s best examples of a young caldera (in geologic time) and serves as the model for understanding caldera resurgence worldwide. A series of resurgent eruptions and magmatic intrusive events followed the original explosion, creating numerous volcanic domes in present day VALL—one of which is Redondo Peak at an elevation of 3,430 m (11,254 ft), which is the second highest peak in the Jemez Mountains. In fact, VALL in its entirety is a high-elevation preserve that hosts a rich assemblage of vegetation, wildlife, and volcanic resources. The National Park Service (NPS) Natural Resource Condition Assessment (NRCA) Program selected VALL to pilot its new NRCA project series. VALL managers and the NRCA Program selected seven focal study resources for condition evaluation. To help us understand what is causing change in resource conditions, we selected a subset of drivers and stressors known or suspected of influencing the preserve’s resources. What is causing change in resource conditions? Mean temperatures during the spring and summer months are increasing, but warming is slower at VALL than for neighboring areas (e.g., Bandelier National Monument). The proportion of precipitation received as snow has declined. From 2000 to 2018, forest pests damaged or killed 75% of the preserve’s forested areas. Only small, forested areas in VALL were affected by forest pests after the 2011 Las Conchas and the 2013 Thompson Ridge fires. The all-sky light pollution model and the sound pressure level model predict the lowest degree of impacts from light and sound to be in the western half of the preserve.
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Fallas, K. M., and W. Matthews. Age dating of a bentonite in the Duo Lake Formation, western Mackenzie Mountains, Northwest Territories. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/328830.

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In the Misty Creek Embayment of the western Mackenzie Mountains, Duo Lake Formation locally includes minor volcanic deposits associated with Marmot Formation volcanism. A bentonite layer from an outcrop of graptolitic shale found in NTS map area 106-B, in the upper part of the Duo Lake Formation, was sampled for U-Pb zircon dating. Analytical results yielded a dominant population of grains with a concordia age of 439.8 ± 3.0 Ma, interpreted as the age of deposition. Minor inherited zircon populations yielded ages ranging from approximately 1200 to 2850 Ma. Observed graptolites from the same outcrop likely range from Middle Ordovician to Early Silurian and are compatible with the interpreted U-Pb age of the bentonite. Previously known Middle and Late Ordovician volcanic activity in the Misty Creek Embayment is here expanded to include Early Silurian activity, and serves as a proxy for the timing of active extensional tectonism in the basin.
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Edwards, B. R., R. G. Anderson, J. K. Russell, N. L. Hastings, and Y T Guo. Geology, the Quaternary Hoodoo Mountain Volcanic Complex and Paleozoic and Mesozoic basement rocks, parts of Hoodoo Mountain (NTS 104B/14) and Craig River (NTS 104B/11) map areas, northwestern British Columbia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2000. http://dx.doi.org/10.4095/211646.

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Edwards, B. R., R. G. Anderson, and J. K. Russell. Geology of the Quaternary Hoodoo Mountain volcanic complex and adjacent Mesozoic and Paleozoic basement rocks, parts of Hoodoo Mountain (NTS 104B/14) and Craig River (NTS 104B/11) map areas, northwestern British Columbia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1997. http://dx.doi.org/10.4095/208672.

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Sherlock, R. L., and D. W. Lindsay. Volcanic stratigraphy of the QSP area, Hope Bay volcanic belt, Nunavut. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2002. http://dx.doi.org/10.4095/213182.

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