We are proudly a Ukrainian website. Our country was attacked by Russian Armed Forces on Feb. 24, 2022.
You can support the Ukrainian Army by following the link: https://u24.gov.ua/.
Even the smallest donation is hugely appreciated!
Geben Sie eine Quelle nach APA, MLA, Chicago, Harvard und anderen Zitierweisen an
Machen Sie sich mit den Listen der aktuellen Artikel, Bücher, Dissertationen, Berichten und anderer wissenschaftlichen Quellen zum Thema "Rocks, Carbonate" bekannt.
Neben jedem Werk im Literaturverzeichnis ist die Option "Zur Bibliographie hinzufügen" verfügbar. Nutzen Sie sie, wird Ihre bibliographische Angabe des gewählten Werkes nach der nötigen Zitierweise (APA, MLA, Harvard, Chicago, Vancouver usw.) automatisch gestaltet.
Sie können auch den vollen Text der wissenschaftlichen Publikation im PDF-Format herunterladen und eine Online-Annotation der Arbeit lesen, wenn die relevanten Parameter in den Metadaten verfügbar sind.
Zeitschriftenartikel zum Thema "Rocks, Carbonate":
1
Yaxley, Gregory M., Bruce A. Kjarsgaard und A. Lynton Jaques. „Evolution of Carbonatite Magmas in the Upper Mantle and Crust“. Elements 17, Nr. 5 (01.10.2021): 315–20. http://dx.doi.org/10.2138/gselements.17.5.315.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
Carbonatites are the most silica-poor magmas known and are amongst Earth’s most enigmatic igneous rocks. They crystallise to rocks dominated by the carbonate minerals calcite and dolomite. We review models for carbonatite petrogenesis, including direct partial melting of mantle lithologies, exsolution from silica-undersaturated alkali silicate melts, or direct fractionation of carbonated silicate melts to carbonate-rich residual melts. We also briefly discuss carbonatite–mantle wall-rock reactions and other processes at mid-to upper crustal depths, including fenitisation, overprinting by carbohydrothermal fluids, and reaction between carbonatite melt and crustal lithologies.
2
Korinevsky, V. G., und E. V. Korinevsky. „Isotopic evidences of magmatic nature of the dolomite-calcite bodies of the Ilmeny Mountains and the Plastovsky district of the South Urals“. Vestnik of Geosciences 11 (2020): 3–19. http://dx.doi.org/10.19110/geov.2020.11.1.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
The data obtained for the first time on the isotopic composition of oxygen and carbon of calcites and graphites of dolomitecalcite rocks of the Ilmeny Mountains and dykes of a similar composition in the Plastovsky district have confirmed their magmatic genesis. The temperature of formation of carbonate bodies (590—1000 °Ñ), determined from the isotopic ratios of C and O in calcite and graphite, corresponds to the temperature range (600—900 °Ñ) of the formation of carbonatite associations. According to the same ratios of isotopes in calcites, the protoliths of carbonate rocks are located within the carbonatite fields of the folded regions and in the transition zone to carbonates of marine origin. This is probably due to the fact that these rocks are a product of carbonate magma during remelting of sedimentary carbonate rocks in subduction zones, or under the influence of the heat of granite intrusions.
3
Bishop, Janice L., Rachel T. Schelble, Christopher P. McKay, Adrian J. Brown und Kaysea A. Perry. „Carbonate rocks in the Mojave Desert as an analogue for Martian carbonates“. International Journal of Astrobiology 10, Nr. 4 (01.07.2011): 349–58. http://dx.doi.org/10.1017/s1473550411000206.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
AbstractCarbonate rocks in the Mojave Desert are presented as potential analogues for the carbonates on Mars. Rocks collected from the Little Red Hill site contain iron oxide-bearing coatings that greatly suppress the spectral features due to carbonate of the underlying material and impart a spectral slope. The Mojave Desert was formerly a lush pedogenic soil environment that, over time, transformed into the current arid climate with abundant rock varnish. One niche for microbes in the current desolate environment is inside and underneath the rocks where the microbes profit from solar protection by the iron oxide rock coatings. Carbonates were long predicted to be present on Mars and have recently been detected by instruments on Phoenix and MER and using hyperspectral orbiters such as the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM), the Planetary Fourier Spectrometer (PFS) and the Thermal Emission Spectrometer (TES). We describe here the results of a study of carbonate rocks from the Little Red Hill site of the Mojave Desert that includes X-ray diffraction (XRD), chemistry and visible-infrared reflectance spectroscopy. Coatings on the carbonate rocks greatly reduced the strength of the carbonate bands and caused changes in the shape of some bands. We compare these data with a carbonate outcrop at Nili Fossae, Mars. If microbes once inhabited Mars, similar carbonate rocks with iron oxide coatings could have provided a UV-protected niche there as well. Thus, analysis of carbonate-bearing regions on Mars by future landers would be useful sites to search for biosignatures.
4
Arman, Hasan, Mahmoud Abu Saima, Osman Abdelghany und Safwan Paramban. „Comparative Study on Degradability Characteristics of Evaporitic and Carbonate Rocks from Al Ain, United Arab Emirates“. IOP Conference Series: Earth and Environmental Science 906, Nr. 1 (01.11.2021): 012130. http://dx.doi.org/10.1088/1755-1315/906/1/012130.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
Abstract The slake durability index (SDI) test is a well know and extensively used to measure the degradability behaviour of rocks especially for weak rocks like mudstone, shale, evaporites, carbonates, etc. The degradability of rocks plays a critical role in engineering design process either on or in the rock mass for safe and sustainable structures. Evaporitic and carbonate rocks are vulnerable to physical, chemical and mechanical weathering, break down, as result of wetting-drying processes during the SDI test. Evaporites and carbonates are outcropped at the surface and subsurface of the Al Ain city, which is located on the south-eastern of Abu Dhabi, capital city of the United Arab Emirates (UAE) at various level, and it is one of the rapid growing cities in the UAE. However, the detailed comparative data on the slaking behaviour of evaporites and carbonates are not available presently in the study area. Therefore, this paper provides a comparative study on the degradability characteristics of evaporitic and carbonate rocks in the city of Al Ain as well as comprehensive data for the study area. 142 rock blocks (∼ 40×40×40 cm3 in size), which represent evaporitic (48 blocks) and carbonate (94 blocks) rocks were collected from various accessible either surfaces outcrops or excavated areas from the study area. 48 and 94 slake durability test samples of evaporites and carbonates were prepared and slake durability tests were performed according to the American Society for Testing and Materials (ASTM) standards. Furthermore, their compositional and textural characteristics were examined using polarized-light microscope, X-ray diffractometry (XRD), X-ray fluorescence (XRF) and scanning electron microscope (SEM). The degradability data for evaporite and carbonate rocks designate medium to very low and extremely high to very high values based on the classification after multiple cycling, Id1 to Id4, processes, respectively. The weight loss values from the first to the fourth cycles (Id1–Id4) of evaporite and carbonate samples are approximately 24–95 and 0.68-4.22 wt%. Obviously, evaporites are highly vulnerable compare to carbonates because of their differences in chemical and mineralogical structures and their reactions to the slaking fluid of distilled water. Hydration-dehydration effects on the evaporitic rocks may occur within short time compare to the carbonate rocks due to their natural occurrences. Thus, this study provide comparable and details information for the degradability characteristics of evaporitic and carbonate rocks, and likely improve the understanding of the durability of both rock types in the study area and elsewhere. Especially, such a reliable and inclusive information will compromise a practical guideline for engineers and decision makers to overcome difficulties on durability problems associated with evaporites and carbonates in the study area and elsewhere.
5
Nikiforov, Anatoly V., Elena O. Dubinina, Nikolay A. Polyakov, Amina M. Sugorakova und Aylan K. Khertek. „Influence of Host Marble Rocks on the Formation of Intrusive Alkaline Rocks and Carbonatites of Sangilen (E. Siberia, Russia)“. Minerals 11, Nr. 7 (22.06.2021): 666. http://dx.doi.org/10.3390/min11070666.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
The study of the O and C isotope composition of calcite from nepheline syenites, ijolites and carbonatites of the Chik intrusion and the intrusions of the Erzin–Tarbagatay group of Sangilen (Eastern Siberia, Russia) showed derivation from alkaline melts enriched with a carbonate component from the host marbleized sedimentary rocks. The calculations showed that about 40% of the initial mass of carbonates involved in the interaction with silicate melts have remained after decarbonation. During the assimilation of the carbonate, an oxygen isotope exchange took place between the residual carbonate material and the silicate phase. Crystallization products of such hybrid magmas are carbonatite veins, calcite-rich nepheline rocks and their pegmatites with a calcite core.
6
Adam, Ludmila, Michael Batzle und Ivar Brevik. „Gassmann's fluid substitution and shear modulus variability in carbonates at laboratory seismic and ultrasonic frequencies“. GEOPHYSICS 71, Nr. 6 (November 2006): F173—F183. http://dx.doi.org/10.1190/1.2358494.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
Carbonates have become important targets for rock property research in recent years because they represent many of the major oil and gas reservoirs in the world. Some are undergoing enhanced oil recovery. Most laboratory studies to understand fluid and pressure effects on reservoir rocks have been performed on sandstones, but applying relations developed for sandstones to carbonates is problematic, at best. We measure in the laboratory nine carbonate samples from the same reservoir at seismic (3–3000 Hz) and ultrasonic [Formula: see text] frequencies. Samples are measured dry (humidified) and saturated with liquid butane and brine. Our carbonate samples showed typical changes in moduli as a function of porosity and fluid saturation. However, we explore the applicability of Gassmann’s theory on limestone and dolomite rocks in the context of shear- and bulk-modulus dispersion and Gassmann’s theory assumptions. For our carbonate set at high differential pressures and seismic frequencies, the bulk modulus of rocks with high-aspect-ratio pores and dolomite mineralogy is predicted by Gassmann’s relation. We also explore in detail some of the assumptions of Gassmann’s relation, especially rock-frame sensitivity to fluid saturation. Our carbonate samples show rock shear-modulus change from dry to brine saturation conditions, and we investigate several rock-fluid mechanisms responsible for this change. To our knowledge, these are the first controlled laboratory experiments on carbonates in the seismic frequency range.
7
Chen, Jun-Qing, Xiong-Qi Pang, Song Wu, Zhuo-Heng Chen, Mei-Ling Hu, Luo-Fu Liu, Kui-You Ma, Bo Pang und Zhi-Peng Huo. „Method for identifying effective carbonate source rocks: a case study from Middle–Upper Ordovician in Tarim Basin, China“. Petroleum Science 17, Nr. 6 (19.09.2020): 1491–511. http://dx.doi.org/10.1007/s12182-020-00489-z.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
AbstractHydrocarbon expulsion occurs only when pore fluid pressure due to hydrocarbon generation in source rock exceeds the force against migration in the adjacent carrier beds. Taking the Middle–Upper Ordovician carbonate source rock of Tarim Basin in China as an example, this paper proposes a method that identifies effective carbonate source rock based on the principles of mass balance. Data from the Well YW2 indicate that the Middle Ordovician Yijianfang Formation contains effective carbonate source rocks with low present-day TOC. Geological and geochemical analysis suggests that the hydrocarbons in the carbonate interval are likely self-generated and retained. Regular steranes from GC–MS analysis of oil extracts in this interval display similar features to those of the crude oil samples in Tabei area, indicating that the crude oil probably was migrated from the effective source rocks. By applying to other wells in the basin, the identified effective carbonate source rocks and non-source rock carbonates can be effectively identified and consistent with the actual exploration results, validating the method. Considering the contribution from the identified effective source rocks with low present-day TOC (TOCpd) is considered, the long-standing puzzle between the proved 3P oil reserves and estimated resources in the basin can be reasonably explained.
8
Xu, Hengchao, Xiaotong Peng, Shun Chen, Jiwei Li, Shamik Dasgupta, Kaiwen Ta und Mengran Du. „Macrofaunal burrowing enhances deep-sea carbonate lithification on the Southwest Indian Ridge“. Biogeosciences 15, Nr. 21 (30.10.2018): 6387–97. http://dx.doi.org/10.5194/bg-15-6387-2018.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
Abstract. Deep-sea carbonates represent an important type of sedimentary rock due to their effect on the composition of the upper oceanic crust and their contribution to deep-sea geochemical cycles. However, the role of deep-sea macrofauna in carbonate lithification remains poorly understood. A large lithified carbonate area, characterized by thriving benthic faunas and a tremendous amount of burrows, was discovered in 2008, blanketing the seafloor of the ultraslowly spreading Southwest Indian Ridge (SWIR). Benthic inhabitants – including echinoids, polychaetes, gastropods and crustaceans – are abundant in this carbonate lithified area. The burrowing features within these carbonate rocks, as well as the factors that may influence deep-sea carbonate lithification, were examined. We suggest that burrowing in these carbonate rocks enhances deep-sea carbonate lithification. We propose that active bioturbation may trigger the dissolution of the original calcite and thus accelerate deep-sea carbonate lithification on mid-ocean ridges. Macrofaunal burrowing provides a novel driving force for deep-sea carbonate lithification at the seafloor, illuminating the geological and biological importance of bioturbation in global deep-sea carbonate rocks.
9
Kuang, Hong Hai. „Pattern Recognition of Carbonate Rocks in Rs Image“. Key Engineering Materials 500 (Januar 2012): 37–39. http://dx.doi.org/10.4028/www.scientific.net/kem.500.37.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
Pattern recognition of carbonate rocks in RS image have been studied in the paper. Samples of carbonate rocks were scanned into rock images.By analysing these samples of carbonate rocks,a new arithmetic was chosed and a standard curve of carbonate rocks by the arithmetic can be gotten.Rs images were divided into grids.There are curves by the arithmetic in grids. The standard curve of carbonate rocks and curves in grids were compared.If both of curves look very similar,the grid is carbonate rocks area.
10
Ehlmann, Bethany L., John F. Mustard, Scott L. Murchie, Francois Poulet, Janice L. Bishop, Adrian J. Brown, Wendy M. Calvin et al. „Orbital Identification of Carbonate-Bearing Rocks on Mars“. Science 322, Nr. 5909 (19.12.2008): 1828–32. http://dx.doi.org/10.1126/science.1164759.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
Geochemical models for Mars predict carbonate formation during aqueous alteration. Carbonate-bearing rocks had not previously been detected on Mars' surface, but Mars Reconnaissance Orbiter mapping reveals a regional rock layer with near-infrared spectral characteristics that are consistent with the presence of magnesium carbonate in the Nili Fossae region. The carbonate is closely associated with both phyllosilicate-bearing and olivine-rich rock units and probably formed during the Noachian or early Hesperian era from the alteration of olivine by either hydrothermal fluids or near-surface water. The presence of carbonate as well as accompanying clays suggests that waters were neutral to alkaline at the time of its formation and that acidic weathering, proposed to be characteristic of Hesperian Mars, did not destroy these carbonates and thus did not dominate all aqueous environments.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
Nuclear Magnetic Relaxation Dispersion (NMRD) is strongly sensitive to the microscopic wettability of oil and brine bearing carbonate rocks. Exploring a very large range of low frequency enables isolating the typical NMRD dispersion features, 1/T1Surf, associated to
the different processes of molecular surface dynamics. This allows a separation of the surface and bulk microdynamics of oil and water even for a biphasic saturation of petroleum rocks. Several surface dynamical parameters were determined and related to the concept of microscopic wettability of oil and water in porous media.
2
Dong, Chengli. „Acidizing of naturally-fractured carbonate formations“. Access restricted to users with UT Austin EID Full text (PDF) from UMI/Dissertation Abstracts International, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3031042.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3
Schmidt, Volkmar. „Magnetic and mineral fabrics in carbonate rocks /“. Zürich : ETH, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17090.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
4
Berhanu, Solomon Assefa. „Seismic and petrophysical properties of carbonate reservoir rocks“. Thesis, University of Reading, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262633.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5
Bosak, Tanja Kirschvink Joseph L. „Laboratory models of microbial biosignatures in carbonate rocks /“. Diss., Pasadena, Calif. : California Institute of Technology, 2005. http://resolver.caltech.edu/CaltechETD:etd-12102004-144939.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6
Huang, Wentao, Peter C. Lippert, Yang Zhang, Michael J. Jackson, Mark J. Dekkers, Juan Li, Xiumian Hu, Bo Zhang, Zhaojie Guo und Hinsbergen Douwe J. J. van. „Remagnetization of carbonate rocks in southern Tibet: Perspectives from rock magnetic and petrographic investigations“. AMER GEOPHYSICAL UNION, 2017. http://hdl.handle.net/10150/624349.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
The latitudinal motion of the Tibetan Himalayathe northernmost continental unit of the Indian plateis a key component in testing paleogeographic reconstructions of the Indian plate before the India-Asia collision. Paleomagnetic studies of sedimentary rocks (mostly carbonate rocks) from the Tibetan Himalaya are complicated by potentially pervasive yet cryptic remagnetization. Although traditional paleomagnetic field tests reveal some of this remagnetization, secondary remanence acquired prior to folding or tilting easily escapes detection. Here we describe comprehensive rock magnetic and petrographic investigations of Jurassic to Paleocene carbonate and volcaniclastic rocks from Tibetan Himalayan strata (Tingri and Gamba areas). These units have been the focus of several key paleomagnetic studies for Greater Indian paleogeography. Our results reveal that while the dominant magnetic carrier in both carbonate and volcaniclastic rocks is magnetite, their magnetic and petrographic characteristics are distinctly different. Carbonate rocks have wasp-waisted hysteresis loops, suppressed Verwey transitions, extremely fine grain sizes (superparamagnetic), and strong frequency-dependent magnetic susceptibility. Volcaniclastic rocks exhibit pot-bellied hysteresis loops and distinct Verwey transitions. Electron microscopy reveals that magnetite grains in carbonate rocks are pseudomorphs of early diagenetic pyrite, whereas detrital magnetite is abundant and pyrite is rarely oxidized in the volcaniclastic rocks. We suggest that the volcaniclastic rocks retain a primary remanence, but oxidation of early diagenetic iron sulfide to fine-grained magnetite has likely caused widespread chemical remagnetization of the carbonate units. We recommend that thorough rock magnetic and petrographic investigations are prerequisites for paleomagnetic studies throughout southern Tibet and everywhere in general.
7
Huang, Tianping. „Wormhole modeling in carbonate acidizing /“. Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8
El-Maghraby, Rehab Motasiem Nasr Ali. „Measurements of CO₂ trapping in carbonate and sandstone rocks“. Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/11066.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
CO2 storage in saline aquifers (sandstone/carbonate types) has been proposed as a promising solution to help reduce CO2 emissions to the atmosphere. CO2 will likely be stored as a dense, supercritical (sc.) phase. There are different mechanisms by which CO2 could be stored safely underground; structural and stratigraphic trapping, dissolution trapping, capillary trapping, and mineral trapping. I study capillary trapping. We assume that in the middle of a CO2 plume, many kilometres in extent, the CO2, brine and rock have been in mutual contact for several years. In these circumstances, the degree of capillary trapping is determined by a displacement of CO2 by brine under these equilibrated conditions. Reproducing such conditions in the laboratory poses a challenge. I have measured the first trapping curve, the relation between initial and residual CO2 saturation, for carbonates in the literature, as well as contributing to the first data on sandstones. For capillary trapping experiment, the porous plate method was used during primary drainage. Two sandstones (Berea and Doddington) and two types of carbonates (Ketton and Indiana) were studied. These experiments were conducted at temperatures of 33, 50, and 70 ˚C and 9 MPa pressure, which matches the conditions observed for several current and planned storage sites. Two displacement steps, primary drainage and water flooding were followed to reach residually trapped CO2 saturation. The isothermal de-pressurization method was used to measure the amount of scCO2 residually trapped. The drainage capillary pressure curve, the Leverett J-function and the trapping curve were measured. During capillary trapping experiments, the brine was equilibrated with CO2 to achieve immiscible displacement. We used a stirred reactor, to equilibrate CO2 with brine. The solubility of CO2 in brine was also measured using the isothermal depressurization method and compared with data in the literature.In Berea sandstone the trapping curves at 33, 50 and 70˚C were compared. We showed that temperature (density) variation has no effect on the saturation of scCO2 that is residually trapped. In Doddington sandstone our result was consistent with that from a micro-flow cell in which the trapped scCO2 was imaged using an X-ray source at the pore scale. We find that significant quantities of the CO2 can be trapped, with residual saturations up to 35%, but less than in analogue experiments where oil is displaced by brine. Hence, it is hypothesized that scCO2-brine systems in sandstones are weakly water-wet with less trapping than the more strongly wetting analogues. Capillary trapping in carbonates is very challenging. In carbonates, another step was required, where brine/CO2/carbonate will be equilibrated together before running the capillary trapping experiment. The apparatus used for sandstone rocks was modified so that the geochemical reaction between CO2/rock was accounted for. Samples are taken and analysed to ensure that the brine/CO2 mixture is saturated with carbonate minerals. In Indiana, the CO2 trapping curve for scCO2 at 50 ˚C and 9 MPa was compared with that of gaseous CO2 at 50 ˚C and 4.2 MPa. A scCO2 residual trapping endpoint of 23.7% was observed in Indiana for scCO2, with a smaller trapping end point in Ketton limestone. This indicates a slightly less trapping of scCO2 in carbonates than in sandstone. There is also less trapping for gaseous CO2 (endpoint of 18.8%). The system appears to be more water-wet under scCO2 conditions, which is different from the trend observed in Berea; the greater concentration of Ca2+ in brine at higher pressure was hypothesised to lead to more water-wet conditions. Our work indicates that capillary trapping could effectively store CO2 in carbonate aquifers.
9
Johnson, Aaron W. „Regional-scale geochemical analysis of carbonate cements : reconstructing multiple fluid interactions related to dolomitization and mineralization in lower carboniferous rocks of the Irish Midlands /“. free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p3101027.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10
Stafford, Kevin Wayne. „Structural controls on megaporosity in eogenetic carbonate rocks Tinian, CNMI /“. Master's thesis, Mississippi State : Mississippi State University, 2003. http://library.msstate.edu/etd/show.asp?etd=etd-10302003-080242.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6
Prudic, David E. Conceptual evaluation of regional ground-water flow in the carbonate-rock province of the Great Basin, Nevada, Utah, and adjacent states. Carson City, Nev: U.S. Dept. of the Interior, U.S. Geological Survey, 1993.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7
Prudic, David E. Conceptual evaluation of regional ground-water flow in the carbonate-rock province of the Great Basin, Nevada, Utah, and adjacent states. Washington: U.S. G.P.O., 1995.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8
Prudic, David E. Conceptual evaluation of regional ground-water flow in the carbonate-rock province of the Great Basin, Nevada, Utah, and adjacent states. Washington: U.S. G.P.O., 1995.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2
Flügel, Erik. „Reservoir Rocks and Host Rocks“. In Microfacies of Carbonate Rocks, 877–94. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-08726-8_17.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5
Flügel, Erik. „Practical use of microfacies: Reservoir Rocks and Host Rocks“. In Microfacies of Carbonate Rocks, 877–94. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03796-2_17.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6
Singhal, B. B. S., und R. P. Gupta. „Hydrogeology of carbonate rocks“. In Applied Hydrogeology of Fractured Rocks, 275–93. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-015-9208-6_13.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7
Singhal, B. B. S., und R. P. Gupta. „Hydrogeology of Carbonate Rocks“. In Applied Hydrogeology of Fractured Rocks, 269–89. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-8799-7_15.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8
Flügel, Erik. „New Perspectives in Microfacies“. In Microfacies of Carbonate Rocks, 1–6. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-08726-8_1.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
9
Flügel, Erik. „Fossils in Thin Section: It is Not That Difficult“. In Microfacies of Carbonate Rocks, 399–574. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-08726-8_10.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Konferenzberichte zum Thema "Rocks, Carbonate":
1
Li, Chengcheng, Kefei Zhang, Zhonggao Ma und Weihua Liu. „Rock property measurement and analysis of carbonate rocks“. In SEG 2018 Workshop: Reservoir Geophysics, Daqing, China, 5-7 August 2018. Society of Exploration Geophysicists and the Chinese Geophysical Society, 2018. http://dx.doi.org/10.1190/rege2018-08.1.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2
Lamy, Celine Marie Marguerit, Stefan Iglauer, Christopher Holst Pentland, Martin Julian Blunt und Geoffrey Colin Maitland. „Capillary Trapping In Carbonate Rocks“. In SPE EUROPEC/EAGE Annual Conference and Exhibition. Society of Petroleum Engineers, 2010. http://dx.doi.org/10.2118/130720-ms.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3
de Assis, Pinto, Leonardo, und De Ceia. „Acoustic properties of carbonate rocks“. In 13th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 26-29 August 2013. Society of Exploration Geophysicists and Brazilian Geophysical Society, 2013. http://dx.doi.org/10.1190/sbgf2013-406.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
4
Alvarez, Walter, Joke Belza, Philippe Claeys, David Peacock und Enrico Tavarnelli. „EXPANSION BRECCIAS IN CARBONATE ROCKS“. In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-282404.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5
Sapiie, B. „Fractures Characterization in Carbonate Rocks“. In 72nd EAGE Conference and Exhibition incorporating SPE EUROPEC 2010. European Association of Geoscientists & Engineers, 2010. http://dx.doi.org/10.3997/2214-4609.201400907.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6
Bolourinejad, Panteha, Dirk Groenendijk, Johannes Van Wunnik und Miranda Mooijer- van den Heuvel. „Surfactant Adsorption on Carbonate Rocks“. In SPE Conference at Oman Petroleum & Energy Show. SPE, 2022. http://dx.doi.org/10.2118/200079-ms.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
Abstract In order to improve the waterflooding efficiency, surfactants and polymers are added to the water; this process is called surfactant–polymer (SP) flooding. One of the problems for this process is high adsorption of surfactants to the rock surface and specially to carbonate rock surfaces. The focus of this work is: to quantify experimentally the adsorption of anionic surfactants to carbonate rock surfaces, obtain a qualitative understanding of the mechanisms at play and identify suitable adsorption inhibitors. The main outcomes of the work are: the adsorption of the surfactants used can be around three times higher (mg per g of rock) on calcite than on sandstone and dolomite. Higher concentrations of divalent ions lead to higher adsorption, and the adsorption also depends on the monovalent ion concentration. Several adsorption inhibitors are identified that can reduce the adsorption substantially, of which polyacrylate showed the most significant reduction. The divalent ions are thought to form a bridge between the anionic surfactants and the charged rock surfaces. The adsorption inhibitors capture the divalent ions, reducing their concentration in solution and, consequently, the adsorption of surfactants. More work is needed on the effectiveness of this concept at higher salinities before a first-pass technical and economic evaluation on the use of adsorption reducing agents on a field-scale can be performed.
7
Sain, Ratnanabha, Ganglin Chen, Shiyu Xu, Michael A. Payne und Akmal Awas Sultan. „Carbonate rock physics: Geophysical and petrophysical pore types of carbonate rocks from an offshore carbonate field“. In SEG Technical Program Expanded Abstracts 2008. Society of Exploration Geophysicists, 2008. http://dx.doi.org/10.1190/1.3059226.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8
Azuara Diliegros, Brenda, und Roberto Aguilera. „A New Method for Determination of Rock Fabric Number from Well Logs in Unconventional Tight Oil Carbonates“. In SPE Canadian Energy Technology Conference. SPE, 2022. http://dx.doi.org/10.2118/208893-ms.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
Abstract This paper develops a new method for estimation of rock fabric number (RFN) from well logs in unconventional tight oil carbonates with less than 0.1 md. The objective is to investigate the oil potential of a Middle Cretaceous tight carbonate in Mexico. Development of a method for these conditions is challenging as the current approach developed by Lucia (1983) has been explained for carbonates with more than 0.1md. The method is calibrated with data from cores and cuttings and allows estimating the presence of grainstone, packstone and wackstone rocks in unconventional tight carbonates from well logs. A crossplot of RFN vs rp35 (pore throat radius at 35% cumulative pore volume) permits delimiting intervals with good production potential that is supported by well testing data. Information for analysis of the Mexican carbonate comes from well logs of 9 wells and 2 re-entry wells, four buildup tests and a limited amount of core and drill cuttings information. All data were provided by a petroleum company and have been used, for transparency, without any modifications. An unconventional tight carbonate as defined in this paper has a permeability smaller than 0.1 md. The unconventional tight oil carbonate reservoir considered in this study includes 95 percent of data with permeabilities smaller than 0.1 md and only 5% with permeabilities larger than 0.1 md. The method introduced by Lucia (1983) and Jennings and Lucia (2003) for determining RFN is powerful, but they explained it only for permeabilities larger than 0.1 md. Thus, the need for a methodology that allows estimating from well logs the presence of grainstone, packstone and/or wackstone in unconventional tight carbonate reservoirs with permeabilities smaller than 0.1 md. Results indicate that the RFN provides a useful approach for distinguishing grainstone, packstone and wackstone rocks in unconventional tight carbonate reservoirs. Furthermore, rock fabric can be linked with Pickett plots to provide an integrated quantitative evaluation of RFN, porosity, water saturation, permeability, pore throat radius, and capillary pressure. This integration indicates that there is good oil potential in the Middle Cretaceous unconventional tight carbonate in Mexico. The novelty of this paper is the use of rock fabric (RFN) in unconventional tight carbonates with permeabilities smaller than 0.1 md for estimating the presence of grainstone, packstone and wackstone rocks from well logs. In addition, a crossplot of RFN vs rp35 provides a good indication of intervals with oil production potential.
9
Boeije, C. S., und W. R. Rossen. „SAG Foam Flooding in Carbonate Rocks“. In IOR 2017 - 19th European Symposium on Improved Oil Recovery. Netherlands: EAGE Publications BV, 2017. http://dx.doi.org/10.3997/2214-4609.201700337.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10
Peacock, David C. P., und Andrew Mann. „Controls on fracturing in carbonate rocks“. In SPE Middle East Oil and Gas Show and Conference. Society of Petroleum Engineers, 2005. http://dx.doi.org/10.2118/92980-ms.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Berichte der Organisationen zum Thema "Rocks, Carbonate":
1
Simandl, G. J., R. J. D'Souza, S. Paradis und J. Spence. Rare-earth element content of carbonate minerals in sediment-hosted Pb-Zn deposits, southern Canadian Rocky Mountains. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/328001.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
Paleozoic platform carbonate rocks of the Rocky Mountains host Mississippi Valley-type (MVT), magnesite, barite, and REE-barite-fluorite deposits. Farther west, platform carbonate rocks of the Kootenay Arc host MVT and fracture-controlled replacement (FCR) deposits. This is the first systematic LA-ICP-MS study of carbonates in MVT and FCR deposits. We investigated seven MVT deposits in the Rocky Mountains, and five MVT deposits in the Kootenay Arc. None of the post-Archean Australian shale (PAAS)-normalized REE profiles show light REE (LREE) depletion and strong negative Ce anomalies characteristic of modern seawater: some profiles are nearly flat; others show depletion in LREE similar to seawater but without negative Ce anomalies; others are middle REE enriched. Carbonates with a strong positive Eu anomaly precipitated from or interacted with different fluids than carbonates with flatter profiles without a strong positive Eu anomaly. REE signatures reflect crystallization conditions of primary carbonates, and crystallization and re-equilibration conditions of carbonates with ambient fluids during diagenesis, deep burial, and/or metamorphic recrystallization. Chemical evolution of fluids along their migration path, fluid-to-rock ratio, fluid acidity, redox, and temperature also influence REE profile shape, which helps establish genetic and timing constraints on studied deposits and improves knowledge of the metallogeny of the Kootenay Arc and Rocky Mountains.
2
Lekhov, A. V. Studies of permeability changes and mass transfer in carbonate rocks. Office of Scientific and Technical Information (OSTI), September 1996. http://dx.doi.org/10.2172/760313.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3
Paradis, S., G. J. Simandl, N. Drage, R
J D'Souza, D. J. Kontak und Z. Waller. Carbonate-hosted deposits (Mississippi Valley-type, magnesite, and REE-F-Ba) of the southeastern Canadian Cordillera: a review and isotopic data comparison. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/327995.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Annotation:
The Mississippi Valley-type, magnesite, and REE-F-Ba deposits in the southeastern Canadian Cordillera are in the weakly deformed/metamorphosed Paleozoic carbonate platform of the Rocky Mountains. Most are hosted in dolostones of the middle Cambrian Cathedral, upper Cambrian Jubilee, and Upper Devonian Palliser formations and spatially associated with hydrothermal dolomite. They occur along structurally controlled facies transitions between the shallow-water carbonate platform and deeper water basin rocks of the Paleozoic continental margin. Their location and morphology reflect episodic rifting along the Paleozoic margin. The carbonate protolith was replaced by fine-grained 'replacive dolomite' followed by several stages of coarser saccharoidal, sparry, and saddle dolomites and sulfides replacing dolostone and filling open spaces. The 87Sr/86Sr, delta-18O, delta-13C, and fluid-inclusion data are consistent with high-temperature fluids interacting with host rocks and show influence of adjacent or underlying siliciclastic rocks. The large range of delta-34S values of sulfides suggests that thermochemical sulfate reduction of seawater sulfate was the main sulfur-reducing process, but bacterial sulfate reduction also occurred locally. Lead isotopes suggest a mixing trend involving highly radiogenic and non-radiogenic end members. These observations are consistent with hydrothermal fluids replacing protoliths, precipitating sulfides, and possibly REE-F-Ba mineralization.
4
Wood, James R., und William B. Harrison. Advanced Characterization of Fractured Reservoirs in Carbonate Rocks: The Michigan Basin. Office of Scientific and Technical Information (OSTI), Dezember 2002. http://dx.doi.org/10.2172/805238.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5
James R. Wood und William B. Harrison. ADVANCED CHARACTERIZATION OF FRACTURED RESERVOIRS IN CARBONATE ROCKS: THE MICHIGAN BASIN. Office of Scientific and Technical Information (OSTI), Februar 2002. http://dx.doi.org/10.2172/834671.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6
James R. Wood und William B. Harrison. ADVANCED CHARACTERIZATION OF FRACTURED RESERVOIRS IN CARBONATE ROCKS: THE MICHIGAN BASIN. Office of Scientific and Technical Information (OSTI), April 2001. http://dx.doi.org/10.2172/834678.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7
James R. Wood und William B. Harrison. ADVANCED CHARACTERIZATION OF FRACTURED RESERVOIRS IN CARBONATE ROCKS: THE MICHIGAN BASIN. Office of Scientific and Technical Information (OSTI), April 2000. http://dx.doi.org/10.2172/835050.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8
James R. Wood und William B. Harrison. ADVANCED CHARACTERIZATION OF FRACTURED RESERVOIRS IN CARBONATE ROCKS: THE MICHIGAN BASIN. Office of Scientific and Technical Information (OSTI), Dezember 2002. http://dx.doi.org/10.2172/826063.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
9
Wood, James R., und William B. Harrison. Advanced Characterization of Fractured Reservoirs in Carbonate Rocks: The Michigan Basin. Office of Scientific and Technical Information (OSTI), Oktober 2000. http://dx.doi.org/10.2172/765659.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10
Wood, J. R., und W. B. Harrison. Advanced Characterization of Fractured Reservoirs in Carbonate Rocks: The Michigan Basin. Office of Scientific and Technical Information (OSTI), Januar 2001. http://dx.doi.org/10.2172/773383.
