Zeitschriftenartikel zum Thema „Western zones“
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1
Liu, Wei, und Xin Ling Dai. „The Western Urbanization under the Constraints of Restricted Development Zone in China“. Advanced Materials Research 616-618 (Dezember 2012): 1317–22. http://dx.doi.org/10.4028/www.scientific.net/amr.616-618.1317.
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The eleventh five-year plan for national economic and social development of China identified fours types of development priority zones. The twelfth five-year plan continues to emphasize the development priority zones strategy. This paper discusses the western urbanization in China in the background of four types of development priority zones. Through the interpretation of the restricted development zone, this paper analyzes the practical conditions and path selections for the western urbanization, concluding that the best path for the western urbanization will be the ecological economic urbanization under the constraints of restricted development priority zone’s policies.
2
Watts, W. A. „Late‐glacial pollen zones in Western Ireland“. Irish Geography 4, Nr. 5 (04.01.2017): 367–76. http://dx.doi.org/10.55650/igj.1963.1072.
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GRAHN, YNGVE. „Ordovician and Silurian chitinozoan biozones of western Gondwana“. Geological Magazine 143, Nr. 4 (06.06.2006): 509–29. http://dx.doi.org/10.1017/s001675680600207x.
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A formal Ordovician–Silurian chitinozoan biozonation for western Gondwana is proposed. This palaeogeographic province includes South America, and was located in medium to high latitudes during Ordovician and Silurian times. Ordovician chitinozoans are known from northern Argentina, southern Bolivia, and Brazil. Silurian chitinozoans occur in Brazil, northern Argentina, southern Bolivia and southern Peru. No published information is available about Ordovician–Silurian chitinozoans from Ecuador, Colombia or Venezuela. Altogether more than 150 localities (including wells and outcrops) are included in this study, and 154 species have been encountered. A biozonation based on the first occurrence of critical chitinozoan species is introduced. Five biozones are defined in the Ordovician (zones of Desmochitina sp. gr. minor, Conochitina decipiens, Eremochitina brevis, Lagenochitina obeligis and Tanuchitina anticostiensis), and nine in the Silurian (zones of Belonechitina postrobusta, Spinachitina harringtoni, Pogonochitina djalmai, Margachitina margaritana–Salopochitina monterrosae, Angochitina echinata, Eisenackitina granulata, Fungochitina kosovensis and the subzones of Sphaerochitina solutidina and Desmochitina cf. D. densa). These biozones are compared with known graptolite, conodont, acritarch and spore zones from the same area, and chitinozoan zones on a global basis.
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Padhye, Anand, Sheetal Shelke und Neelesh Dahanukar. „Distribution and composition of butterfly species along the latitudinal and habitat gradients of the Western Ghats of India“. Check List 8, Nr. 6 (01.12.2012): 1197. http://dx.doi.org/10.15560/8.6.1197.
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Distribution of butterfly species along the latitudinal and habitat gradients of the Western Ghats was studied. The Western Ghats was divided into 14 latitude zones and the species diversity in each latitude zone, along with habitats of their occurrence, were studied using the data from literature survey for the entire Western Ghats as well as data from personal observations in the areas between 14°N to 20°N latitudes. Out of 334 species recorded from the Western Ghats, 58 species were found in all latitudinal zones, while 5 species were reported in only one latitudinal zone. Further, southern Western Ghats consisted of more number of species and more number of genera as compared to northern Western Ghats. Latitudinal zones between 10°N to 12°N had most of the Western Ghats endemic species. Habitat wise distribution of species revealed three significant clusters grossly separated by the level of human disturbance. Evergreen forest habitats supported maximum number of species endemic to the Western Ghats.
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Briggs, Barbara G., und Allan Tinker. „Synchronous monoecy in Ecdeiocoleaceae (Poales), in Western Australia“. Australian Journal of Botany 62, Nr. 5 (2014): 391. http://dx.doi.org/10.1071/bt14138.
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The Western Australian plant family Ecdeiocoleaceae includes only three species but DNA data show them as the closest living sister-group of the Poaceae. Ecdeiocoleaceae are wind-pollinated and monoecious; spikes produce separate zones of pistillate and staminate flowers, in acropetal succession. Spikes of Ecdeiocolea have up to 45 flowers, with a sequence of zones up the spike, commonly pistillate–staminate–pistillate–staminate–pistillate, with potentially high fruit set in both of the lower pistillate zones. Rainfall in their habitats in semiarid south-western Australia is highly variable and shorter spikes with fewer zones are formed in drought conditions. Georgeantha, with fewer flowers per spike, shows the same general pattern but fewer switches. Synchrony of zonal flowering gives an effective barrier to self-pollination, a form of ‘temporal dioecy’. All spikes on many stems of a plant flower with the conspicuous white stigmas of a pistillate zone or, at a different time, all with the yellow anthers of a staminate zone. Such synchrony is between the many spikes on the plant, not between plants in a population. Features of vegetative and flowering structures and habitat are briefly mentioned.
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Mukher, G., S. F. Kulagina, A. V. Goryachev, E. A. Pakhomova und A. A. Gladyshev. „FEATURES OF THE STRUCTURE AND OIL AND GAS POTENTIAL OF LOWER CRETACEOUS AND UPPER JURASSIC SEDIMENTS IN WESTERN AREAS OF WESTERN SIBERIA“. Oil and Gas Studies, Nr. 5 (01.11.2017): 25–34. http://dx.doi.org/10.31660/0445-0108-2017-5-25-34.
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The features of the geological structure and oil and gas potential of the Bazhenov-Abalak oil and gas complex are discussed. Based on new geological and seismic data, using an integrated approach, the zones of distribution and the boundaries of thinning out of silty sand reservoir rocks of Vogulkinskaya strata were mapped, four traps and two zones (Ourinskaya, Eastern Tolumskaya), which are perspective for hydrocarbon deposits search, were distinguished. In Bazhenov horizon, the zones of development of anomalous sections and bituminous sediments were mapped, laying above Bazhenov formation, which are perspective for hydrocarbon deposits search. Recommendations for further exploration are given.
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Zhao, Dapeng. „Tomography and Dynamics of Western-Pacific Subduction Zones“. Monographs on Environment, Earth and Planets 1, Nr. 1 (31.01.2012): 1–70. http://dx.doi.org/10.5047/meep.2012.00101.0001.
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Punlis, A. C. „Prograded low-temperature alteration zones, Forrestania, Western Australia“. ASEG Extended Abstracts 2006, Nr. 1 (Dezember 2006): 1–2. http://dx.doi.org/10.1071/aseg2006ab143.
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Ryan, Barry J. „Zones and routes: Securing a western Indian Ocean“. Journal of the Indian Ocean Region 9, Nr. 2 (Dezember 2013): 173–88. http://dx.doi.org/10.1080/19480881.2013.847561.
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Takhirjanovich, Razikov Odil. „Genetic Types Of Rare Mineral Gold Of Western Uzbekistan (Southern Tien-Shan)“. American Journal of Applied sciences 02, Nr. 12 (27.12.2020): 61–67. http://dx.doi.org/10.37547/tajas/volume02issue12-10.
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The work describes the genetic types and conditions for the localization of mineralization - individual deposits and ore occurrences. Also, the indicated mineralized zones, the conditions of occurrence of the mineralization, the geological-structural position and the peculiarities of the host complexes. Descriptions of promising tungsten, tin ore, polymetallic, mercury and other ore zones, which serve as a reserve in expanding the resource base in the Republic, are given. Tungsten, tin ore, and mercury mineralizations are characterized in somewhat more detail, since the latter in the region under study is often spatially associated with gold and forms mercury-antimony-polymetallic mineralization.
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Daniel, J. Alfred, und K. Ramaraju. „Collecting parasitic Aculeata (Hymenoptera) from rice ecosystems of Tamil Nadu, India“. Journal of Threatened Taxa 12, Nr. 8 (26.05.2020): 15828–34. http://dx.doi.org/10.11609/jott.4724.12.8.15828-15834.
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Surveys were conducted to explore the parasitic aculeate fauna in rice ecosystems of Tamil Nadu in 2015–2016 in three different rice growing zones, viz., the western zone, the Cauvery delta zone and the high rainfall zone. The study recorded a total of 32 aculeates that represent 12 species under seven families belonging to three super families, viz., Apoidea (Apidae), Chrysidoidea (Bethylidae, Chrysididae, & Dryinidae), and Vespoidea (Mutillidae, Scoliidae, & Thiphiidae). Alpha and beta diversity were computed for the three zones and the diversity indices (Simpson’s index, Shannon-Wiener index, Pielou’s index) revealed the high rainfall zone as the most diverse zone, with the Cauvery delta zone being the least diverse. On comparing the species similarities using the Jaccard’s index in between the three zones taken in pairs, it was found that 42 per cent similarity existed between the western and Cauvery delta zone and 11 per cent similarity between high rainfall and Cauvery delta zones and 16 per cent similarity between the high rainfall and western zones.
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Huang, Xiaojing, Lei Ma, Rao Li und Zheng Liu. „Determinants of Innovation Ecosystem in Underdeveloped Areas—Take Nanning High-Tech Zone in Western China as an Example“. Journal of Open Innovation: Technology, Market, and Complexity 6, Nr. 4 (06.11.2020): 135. http://dx.doi.org/10.3390/joitmc6040135.
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High-tech zones are an important platform for local governments in China to carry out regional collaborative innovation and an important carrier for the construction of a regional innovation ecosystem. The evolution path of innovation ecosystem in a high-tech zone is divided into three stages: enterprise collection, industrial cluster, and system integration. The innovation subjects form a complex network system that transcends the physical boundary. This paper studies the relationship between innovation input, innovation output, and innovation environment from the perspective of cluster innovation ecosystem structure. Using data mining technology, this paper establishes an index variable system of the innovation ecosystem in a high-tech zone, which includes innovation input, innovation output, and innovation environment. Based on the data of the Nanning National High-tech Zone in China, empirical tests were carried out, using factor analysis and regression analysis to analyze the quantitative relationship between the input, output, and innovation environment of the Nanning High-tech Zone’s innovation ecosystem, and to explain the relationship between each other and the overall innovation of the high-tech zone. This research has certain practical significance for enriching and perfecting the theory of industrial clusters and studying the evolution of the innovation ecosystem of high-tech zones from a micro level. It has important, enlightening significance as a reference for the construction of innovative high-tech zones and the enhancement of high-tech zones’ independent innovation capabilities.
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Muhammad, Muhammad, Agus Widi Priana, Junaidi M. Affan, Haekal Azief Haridhi, Irwan Irwan, Syarifah Meurah Yuni und Ichsan Setiawan. „Mapping potential fishing zones based on sea surface temperature and Chlorophyll-A in the Waters of Aceh Besar, Indonesia“. E3S Web of Conferences 339 (2022): 02002. http://dx.doi.org/10.1051/e3sconf/202233902002.
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Utilization of potential fishery and marine resources is still not maximally used by fishermen. Sea surface temperatures and the spread of chlorophyll-a through remote sensing systems can be used as potential fishing zones. This study aims to determine potential fishing zones using geographic information systems through the distribution of sea surface temperatures and the value of chlorophyll-a concentrations in Aceh Besar waters which is expected to improve the sustainability of fishing efforts. This research was conducted in January-December 2019 using geographic information system by extracting from Aqua-MODIS satellite image with resolution of 4 km and sea surface temperature overlay method with chlorophyll-a concentration. The results found the highest sea surface temperature value was in April at 31.62°C and the lowest temperature was in December at 28.45°C. The highest average chlorophyll-a concentration in Aceh Besar waters was 1.53 mg/m3 in December and the lowest concentration of chlorophyll-a in June and September was 0.20 mg/m3. Suspected potential fishing zones during January to December 2019 were found as many as 62 potential fishing zones, namely in the Western, Northwest and Eastern waters of Aceh Besar. The most zones are in December as many as eight zones, namely in the Western, Northwest and East parts of Aceh Besar waters and the least found in July as many as one zone that is in the Western part of Aceh Besar waters. When compared to fishing operations areas, the potential fishing zone is in the western part of Aceh Besar waters.
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Daniel, J. Alfred, K. Ramaraju und A. Rameshkumar. „Comparative studies of mymarid diversity from three different zones of paddy ecosystem in Tamil Nadu, India“. ENTOMON 44, Nr. 3 (31.10.2019): 173–82. http://dx.doi.org/10.33307/entomon.v44i3.458.
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Surveys were conducted to explore the mymarid fauna from three different rice growing zones viz., western zone, Cauvery delta zone and high rainfall zone in Tamil Nadu during 2015-16. In the present study, 92 mymarid parasitoids comprising of 8 species under 7 genera viz., Anagrus sp., Anaphes sp., Camptoptera sp., Dicopus longipes (Subba Rao), Lymaenon delhiensis Narayanan and Subba Rao, Lymaenon munnarus Mani and Saraswat, Mymar pulchellum Curtis and Ptilomymar dictyon Hayat and Anis were collected. Alpha and beta diversity were computed for the three zones and the diversity indices (Simpson’s index, Shannon-Wiener index, Pielou’s index) revealed high rainfall zone as the most diverse zone, while Cauvery delta zone being the least diverse. Dicopus longipes is found to the predominant species in rice ecosystem. Jaccard’s index of species similarity comparison revealed 42.5 per cent similarity between western and Cauvery delta zones and 62.5 per cent similarity between high rainfall and Cauvery delta zones and 62.5 per cent similarity between high rainfall and western zones. Correspondence analysis and Bray-curtis cluster analysis were also done to understand the diversity assemblage of the mymarids that were collected.
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Michael, C. „EPITHERMAL SYSTEMS AND GOLD MINERALIZATION IN WESTERN THRACE (NORTHERN GREECE)“. Bulletin of the Geological Society of Greece 36, Nr. 1 (01.01.2004): 416. http://dx.doi.org/10.12681/bgsg.16727.
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Extensive epithermal systems occur within the Tertiary volcanosedimentary basins of western Thrace northern Greece. Gold deposits or perspective gold districts, related to the above epithermal systems have been recently found in the area. The gold mineralization is of the high – sulfidation type and is associated to a diversity in composition and style volcanic activity. Sappes epithermal system is the most important (Saint Demetrios and Viper deposits) and has developed in volcanic "ocks of intermediate composition accompanied by subvolcanic intrusives (dacite - andésites) and plutonio rocks (quartz - monzodiorites). Saint Demetrios and Viper gold deposits are flat lying and of high sulfidation type mineralizations hosted in hydrothermal breccia zones. Petrota epithermal system has developed in volcanoclastic and epiclastic rocks (Perama Hill gold deposit), in rhyolites (location Othontoto) and within hyaloclastites and crystal tuffs (location Mavrokoryfi). The mineralized epithermal zones have strong structural control. Perama gold deposit occurs at the intersection of NS and NW trending epithermal zones. These structures represent the higher grade "feeder" system. Pefka epithermal system is hosted in more acid volcanic vocks (dacites, rhyodacites) and at its southern part (Pasa lofos area) the system is associated with a more alkaline suit (shoshonitic rocks). The mineralized silicifid zones at Pefka mine would correspond to concentric fractures (sheeted fracturing) parallel to the margin of the breccia pipe. The gold mineralization occurs in veins. In general gold occurs in the form of native gold, gold tellurides or it is associated with enargite, luzonite, tetrahedhte. Advanced argillic alteration and intense silicification are very important for the epithermal systems in western Thrace. A unique low - sulfidation occurrence was found at the central and southern part of Sappes area. Adularla was found in veinlets overlapping argillic alteration zones of high - sulfidation system.
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Ustinova, M. A., und R. R. Gabdullin. „The calcareous nanoplankton in the Upper Paleocene deposits from Bakhhisaray region (South-Western Crimea)“. Moscow University Bulletin. Series 4. Geology, Nr. 5 (28.10.2018): 35–41. http://dx.doi.org/10.33623/0579-9406-2018-5-35-41.
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The calcareous nannoplankton of the Upper Paleocene and Eocene deposits from Bakhchisaray region of the South-Western Crimea was studied, it comparison with the coeval complexes studied earlier was made and zones were identified. Kacha Formation corresponds to zones NP6–NP8 (?), Bakhchsarai Formation — to NP12 zone, Simferopol Formation — to zones NP13–NP14. According to the species composition, it was found that the calcareous nannoplankton lived in the normal-salt shelf sea, in the tropical belt.
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Olson, Donald B. „Biophysical dynamics of western transition zones: a preliminary synthesis“. Fisheries Oceanography 10, Nr. 2 (Juni 2001): 133–50. http://dx.doi.org/10.1046/j.1365-2419.2001.00161.x.
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Gelbman, Alon, und Dallen J. Timothy. „Differential tourism zones on the western Canada–US border“. Current Issues in Tourism 22, Nr. 6 (24.03.2017): 682–704. http://dx.doi.org/10.1080/13683500.2017.1304364.
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Melville, Bendley, Owen Lawrence, Maureen Williams, Valerie Francis, Lee Collins und Elicia Archer. „Childhood malnutrition in three ecological zones in western Jamaica“. Ecology of Food and Nutrition 20, Nr. 4 (Februar 1988): 287–96. http://dx.doi.org/10.1080/03670244.1988.9991010.
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Gorter, John D., Michael J. Orchard, Robert S. Nicoll und Darren Ferdinando. „Significance of Early Triassic conodont zones from Western Australia“. ASEG Extended Abstracts 2019, Nr. 1 (11.11.2019): 1–4. http://dx.doi.org/10.1080/22020586.2019.12073117.
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Chen, Mei Tao, Ning Yang und Shang Ming Yang. „Paleozoic Carbonate Hydrocarbon Accumulation Zones in Tahong Uplift Tarim Basin, Western China“. Advanced Materials Research 403-408 (November 2011): 1511–16. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.1511.
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Analyzing the discovered carbonate reservoirs in the Tazhong area, Tarim Basin indicates that the development of a reservoir is controlled by subarial weathering and freshwater leaching processes, sedimentation, early diagenesis, and alteration by deep fluids. According to the origin and lateral distribution of reservoirs, the hydrocarbon accumulation zones in the Tazhong area are classified into four types: buried hill and palaeoweathering crust, organic buildup reef-bank, dolomite interior, and deep fluid alteration. Different types of carbonate hydrocarbon accumulation zones are distributed mainly in specific areas of the Tazhong uplift. Because of the different mechanisms of forming reservoirs in different carbonate hydrocarbon accumulation zones, the reservoir space, reservoir capability, type of reservoir and distribution of reservoirs are often different.
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Jarmołowicz-Szulc, Katarzyna, und Leszek Jankowski. „Interpretation of Mineralization in the Western Carpathians (Polish Segment)—A Tectonic Mélange Approach“. Minerals 11, Nr. 11 (22.10.2021): 1171. http://dx.doi.org/10.3390/min11111171.
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Quartz, carbonates and other minerals as e.g., realgar are present in veins and caverns in sedimentary rocks in the Western Carpathians. In the Polish segment, they have been characterized from the mineralogical, petrologic, and geochemical points of view, as well as fluid inclusions. Their characters are discussed from perspective of a description of particular types of chaotic complexes—the tectonic mélange zones, distinguished in the Western Carpathian area over the last two decades. The mélange zones are considered to be geochemical systems open to fluid flow, a site for mineral crystallization and/or migration zones of hydrocarbons and mineralized waters. In this context the tectonic mélange in the Jabłonki/Rabe vicinity (SE Poland, the Bieszczady region) in comparison to that of the Mszana Dolna tectonic window area are proposed as the examples. The trapping conditions of fluids (brine and methane) in the minerals in the mélange zones appear to have been 180–205 °C and ~550–570 bars, and 220 °C and 500 bars for calcite and quartz, respectively. The general trend of the increase in temperatures and pressures from west towards east and south-east in the mélange zones points to an increase in the degree of exhumation of different parts of the Carpathians.
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Daniel, Johnson Alfred, und Kunchithapatham Ramaraju. „Diversity of parasitic Hymenoptera in three rice-growing tracts of Tamil Nadu, India“. Journal of Threatened Taxa 11, Nr. 13 (26.10.2019): 14681–90. http://dx.doi.org/10.11609/jott.4529.11.13.14681-14690.
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Parasitic hymenoptera play a vital role in rice ecosystems as biocontrol agents of pests. Surveys were conducted from August 2015 to January 2016 in three rice growing zones in Tamil Nadu: western zone, Cauvery Delta zone, and high rainfall zone. A total of 3,151 parasitic hymenoptera were collected, of which 1,349 were collected from high rainfall zone, 1,082 from western zone, and 720 from Cauvery Delta zone. Platygastridae, Ichneumonidae, and Braconidae were the most abundant families in all the three zones. The species diversity, richness, evenness as well as beta diversity were computed for all three zones via Simpson’s, Shannon-Wiener and Margalef indices. The results showed the high rainfall zone to be the most diverse and the Cauvery Delta zone the least diverse, but with more evenness. Pairwise comparison of zones using Jaccard’s index showed 75–79% species similarity.
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Özgür, N., und T. Arife Çalışkan. „ACTIVE GEOTHERMAL SYSTEMS IN THE CONTINENTAL RIFT ZONES OF THE MENDERES MASSIF, WESTERN ANATOLIA, TURKEY“. Bulletin of the Geological Society of Greece 50, Nr. 2 (27.07.2017): 885. http://dx.doi.org/10.12681/bgsg.11794.
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The active geothermal waters of Kızıldere, Bayındır, and Salihli in the continental rift zones of the Büyük Menderes, Küçük Menderes and Gediz represent typical examples in the study area. The meteoric waters in the drainage areas of the rift zones percolate at NE-SW and/or NW-SE trending fault zones and permeable clastic sediments into the reaction zone of the roof area of a magma chamber situated in a probable depth of up to 5 km where meteoric fluids are heated by the cooling magmatic melt and ascend to the surface due to their lower density caused by convection cells. The volatile components of CO2, SO2, HCl, H2S, HB, HF, and He out of the magma reach the geothermal water reservoir where an equilibrium between altered rocks, gas components, and fluids performs. Thus, the geothermal waters ascend in the tectonical zones of weakness at the continental rift zones of the Menderes Massif in terms of hot springs, gases, and steams. These fluids are characterized by high to medium CO2, H2S and NaCl contents.
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Dochev, Docho, und Georgi Granchovski. „Inoceramid bivalves and calcareous nannofossils from the Coniacian of the Western Srednogorie Unit (Western Bulgaria)“. Geologica Balcanica 46, Nr. 2 (November 2017): 87–96. http://dx.doi.org/10.52321/geolbalc.46.2.87.
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The inoceramid fauna and the calcareous nannoflora of the Coniacian in two sections (Rebro and Kondel Hill) in the Western Srednogorie Unit (Western Bulgaria) have been investigated. Both of the studied sedimentary successions yielded well-preserved inoceramid bivalves. Although the calcareous nannofossil assemblages exhibit poor to very poor preservation, they are reasonably taxonomically diverse and allowed biostratigraphic interpretations to be made. In section Rebro, where the sediments of the Izvor Formation are exposed, the inoceramid fauna indicates the presence of the lower Coniacian Cremnoceramus crassus inconstans and Cremnoceramus crassus crassus/Cremnoceramus deformis deformis inoceramid zones. Based on the consistent occurrence of Broinsonia parca subsp. expansa and the absence of Micula staurophora, the sediments have been assigned to nannofossil subzone UC9c. In section Kondel Hill, the rocks of the Izvor and Melove formations crop out. Only the lowermost ~5 m of the Melove Formation yielded inoceramids, which indicate the presence of the lower Coniacian Cremnoceramus crassus crassus/Cremnoceramus deformis deformis inoceramid Zone. The nannofossil assemblages indicate the presence of nannofossil zones UC9 (in the Izvor and Melove formations) and UC10 (in the Melove Formation), which extend from the upper Turonian (pars.) to the upper Coniacian (pars.). Base Micula staurophora/base UC10 could not be correlated with inoceramid data, however, because it was detected above the inoceramid-bearing strata.
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Mohammed, R., Murtala, N., Danwanka, H. A. und Haruna, U. „SOCIO-ECONOMIC CHARACTERISTICS INFLUENCING SUGAR CONSUMPTION PATTERN IN BAUCHI STATE NIGERIA“. Nigerian Journal of Agriculture and Agricultural Technology 3, Nr. 1 (10.06.2023): 187–98. http://dx.doi.org/10.59331/njaat.v3i1.469.
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The study examined household sugar consumption pattern in Bauchi State, Nigeria. Cross –sectional data were collected from 412 households using multistage sampling technique. The data were analyzed using descriptive statistics, Linear regression model and budget share index. The socio-economic factors influencing sugar consumption in northern zone of Bauchi State were; age, household size (P<0.01), income (P<0.05), educational level and primary occupation (P<0.1), with R2 value of 0.685. The significant variables that influenced household sugar consumption in central zone were monthly income (P<0.05), cost of sugar and household size (P<0.01) and average monthly total food expenditure (P<0.05); with R2 value of 0.497. In the western zone sugar consumption was influenced by average monthly income and household size (P<0.01), cost of sugar (P<0.05), and primary occupation (P<0.1) with an R2 value of 0.375 and the F-value of all the three zones were significant (P<0.01). The central zone had the highest sugar budget share of 8.70%, followed by western zone (6.59%), while Northern zone had 5.20%. The result showed that, in northern zone the respondents spent 60.91% of their household budget on food, while in central and western zones it was 59.27% and 55.06% respectively. Most of the respondents, 89.4% and 84.2% in central and western zones, respectively reported price as a major constraint to sugar consumption; likewise, 79.7% in northern zone. Income is the second constraint to sugar consumption in all the three zones with 73.4%, 84.6% and 77.6% in northern, central and western zones, respectively. Household size ranked third, the northern zone had 51.0%, central zone 47.1% and western zone 32.7%. A small percentage of the respondents reported health as a constraint to sugar consumption, northern zone 23.1%, central 25.0% and western zone 24.2%. The research concluded that socioeconomic factors have an influence on sugar consumption of the household. The study therefore, recommended Policies and programs toward sugar sector in Nigeria should be improve and implemented toward self-sufficiency in sugar production. Thus, filling the demand and supply gap of the product in the country.
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Carlsen, G. M., A. P. Simeonova und S. N. Apak. „PETROLEUM SYSTEMS AND EXPLORATION POTENTIAL IN THE OFFICER BASIN, WESTERN AUSTRALIA“. APPEA Journal 43, Nr. 1 (2003): 473. http://dx.doi.org/10.1071/aj02025.
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The Officer Basin in Western Australia contains a variety of hydrocarbon plays associated with compressional, halokinetic, unconformity and stratigraphic traps. Five distinct structural zones have been defined in the basin—a northeastern Marginal Overthrusted Zone, a northeastern Salt-ruptured Zone, a central Thrusted Zone, a Western Platform and a complex salt-dominated Minibasins Zone. These zones, together with salt-associated and sub-salt structure, are well delineated on about 2,900 km of reprocessed 1980s vintage seismic data, now publicly released.Neoproterozoic rocks are marginally to fully mature for oil generation on the Western Platform and immature to overmature for different levels of the succession in the Salt-ruptured and Thrusted zones. Geochemical modelling indicates that the main phases of oil generation vary from different stratigraphic intervals and different parts of the Neoproterozoic basin with peaks during the latest Neoproterozoic, Cambrian, and Permian–Triassic. A variety of hydrocarbon shows have been recorded in each of the structural zones. The most recent, a gas show recorded in the stratigraphic well Vines–1 indicates the presence of potentially effective petroleum systems in the unexplored Waigen area of the Marginal Overthrusted Zone.A wide variety of trap styles have been identified, associated with normal faults, thrust faults, thrust ramp folds, compressive folds, fault tip folds, sub-salt plays, unconformity truncations, pinchouts, lateral facies changes, erosive channels and valleys, fractured carbonates and halokinetic traps. Most of these trap styles are poorly tested or untested.
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Lachgar, Abdelkrim, David Mulla und Viacheslav Adamchuk. „Implementation of Proximal and Remote Soil Sensing, Data Fusion and Machine Learning to Improve Phosphorus Spatial Prediction for Farms in Ontario, Canada“. Agronomy 14, Nr. 4 (27.03.2024): 693. http://dx.doi.org/10.3390/agronomy14040693.
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One of the challenges in site-specific phosphorus (P) management is the substantial spatial variability in plant available P across fields. To overcome this barrier, emerging sensing, data fusion, and spatial predictive modeling approaches are needed to accurately reveal the spatial heterogeneity of P. Seven spatially variable fields located in Ontario, Canada are clustered into two zones; four fields are located in eastern Ontario and three others are located in western Ontario. This study compares Bayesian Additive Regression Trees (BART), Support Vector Machine regressor (SVM), and Ordinary Kriging (OK), along with novel data fusion concepts, to analyze integrated high-density spatial data layers related to spatial variability in soil available P. Feature selection and interaction detection using BART variable selection and Recursive Feature Elimination (RFE) for SVM were applied to 42 predictors, including soil-vegetation indices derived from PlanetScope multispectral imagery, high-density apparent soil electrical conductivity (ECa), and high-resolution topographic attributes derived from DUALEM-21S and a Real-Time Kinematic (RTK) global navigation satellite systems (GNSS) receiver, respectively. Modeling spatial heterogeneity of soil available P with BART showed higher accuracy than SVM and OK in both zones of this study when trained and tested on ground truth data from clusters of farms. A BART variable selection approach resulted in six auxiliary predictors of soil available P in the eastern zone, while only four predictors were selected to predict P in the western zone. RFE for SVM resulted in models with 15 and 12 auxiliary predictors in the eastern and western Ontario zones. Topographic elevation was the most influential predictor of soil available P in both zones. Compared with the SVM and OK methods, BART exhibited lower average RMSE values for individual fields of 1.86 ppm and 3.58 ppm across the eastern and western Ontario zones, respectively, along with higher R2 values of 0.85 and 0.83, respectively. In contrast, SVM had RMSE values for individual fields in the eastern and western Ontario zones, respectively, averaging 5.04 ppm and 7.51 ppm and R2 values of 0.27 and 0.43. RMSE values for soil available P in individual fields across the eastern and western Ontario zones averaged 4.77 ppm and 7.81 ppm, respectively, with the OK method, while R2 values averaged 0.19 and 0.44. The selection of suitable auxiliary predictors and data fusion, combined with BART spatial machine learning algorithms, have potential to be a useful tool to accurately estimate spatial patterns in soil available P for agricultural fields in Ontario, Canada.
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Tolepov, A., A. Tlesova und N. Nurkasheva. „SPECIAL ECONOMIC ZONES OF WESTERN KAZAKHSTAN AS A MECHANISM FOR IMPROVING INVESTMENT AND INNOVATION ACTIVITIES“. Central Asian Economic Review, Nr. 6 (04.05.2023): 140–51. http://dx.doi.org/10.52821/2789-4401-2022-6-140-151.
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The purpose of the study is to study the theoretical aspects of special economic zones and develop scientifically sound recommendations for determining development opportunities in the West Kazakhstan region.Methodology – during the research work, the bibliographic method was used to determine the theoretical and methodological aspects and the ideas of foreign, Kazakh authors about the special economic zone were studied. A mathematical analysis of statistical data was carried out to assess the state of special economic zones in the West Kazakhstan region. The necessary indicators for this were selected by the ranking method. Based on the results of the evaluation using the inductive method, recommendations for the development of the activities of special economic zones have been developed.Uniqueness / value of the study – the importance of creating and improving special economic zones for the development of innovative activities, as well as increasing the investment attractiveness of the West Kazakhstan region is determined. At the same time, the leading industry directions for the development of special economic zones in the region have been identified. A set of measures to improve the investment climate and improve innovation activities has been systematized.The results of the study – an assessment of the innovation and investment activities of the West Kazakhstan region was carried out; the possibilities of improving the activities of the currently created special economic zones and the creation of new ones were identified, recommendations for their improvement were given.
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Pravikova, Natalia V., Petr L. Tikhomirov, Alexander V. Tevelev, Irina A. Kosheleva und Timofey N. Surin. „Magma Chemistry and Tectonic Controls of Volcanic Activity in the Southern Ural Area during Early Carboniferous Time“. Minerals 13, Nr. 2 (11.02.2023): 258. http://dx.doi.org/10.3390/min13020258.
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Early Carboniferous (359.3–323.4 Ma) volcanic complexes are widespread in the Southern Ural tectonic province, a fragment of the western (in present-day coordinates) segment of the Central Asian Orogenic Belt. Here, the Lower Carboniferous sequences crop out within the following N–S-trending tectonic zones (from west to east): Magnitogorsk, Ui River, East Ural, Transural, and Valeryanovka. We describe and discuss the geology and geochemistry of the Early Carboniferous volcanic complexes on the basis of published and newly obtained data, with implications for paleo-tectonic models. The western zones are dominated by bimodal rhyolite-basalt series, with the basalts relatively enriched in Ti and Zr but depleted in Nb. The volcanics of the Valeryanovka zone belong to the typically evolved calc-alkaline series, with the derivatives depleted in Ti and Nb. Almost all of the selected groups of volcanics bear geochemical signatures transitional between those of subduction-related and intraplate igneous rocks. The relative enrichment of the volcanics of the East Ural and Transural Zones may be interpreted as a result of a contribution from asthenospheric mantle and/or from subcontinental lithospheric mantle. The volcanics of the Valeryanovka zone reveal features common to subduction-related series of the Andean type. The data obtained allow us to compare the Early Carboniferous geodynamic settings in the western zones with the modern setting of the Northeastern Pacific, whereas the geodynamic setting of the Valeryanovka zone resembles that at the western margin of South America.
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Zubkov, M. Yu. „Application of experimental tectonic methods in petroleum geology on the examples of deposits in Western Siberia“. Геотектоника, Nr. 3 (26.06.2019): 92–109. http://dx.doi.org/10.31857/s0016-853x2019392-109.
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Modeling of the most common types formation of anticlinal and uplift-thrust tectonic structures was carried out with using optical polarization and tectonic-sedimentary methods based on seismic sections analysis of various areas and deposits located in the West Siberian oil and gas basin that were selected for examples. Experiments with using the optical-polarization method allowed us to research the nature of the stress-regime arising in the gelatin models of the sedimentary cover due to the growth of anticlinal blocks and uplift-thrust dislocations. By the level of tangential stresses and orientation of isoclines in optical models, zones of probable tectonogenic fracture and the direction of cracks are predicted.
2D tectonic-sedimentation modeling made possible to explain the mechanism of formation of “rootless” uplifts, zones of subsidence or decompression in sediments, the principle of tectonic “pump” function, and to obtain dependencies between size and shape of uplift, density and opening of cracks formed above, to calculate the value of fracture “porosity”, as well as lateral dimensions of zones of tectonogenic fracturing.
3D tectono-sedimentation modeling allowed to link hydrography of the earth surface of the simulated area with decompression of zones that came to the surface in the models. These zones of decompression can serve as a search sign for exploration of highly productive zones containing hydrocarbon deposits.
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Merzoug, A., L. Belabid, M. Youcef-Benkada, F. Benfreha und B. Bayaa. „Pea Fusarium wilt races in western Algeria“. Plant Protection Science 50, No. 2 (06.05.2014): 70–77. http://dx.doi.org/10.17221/20/2013-pps.
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The fungus Fusarium oxysporum f.sp. pisi (FOP), the pea wilt pathogen, causes appreciable yield losses under favourable environmental conditions in Algeria. Studies on the pathogen variability and distribution of races are essential to identify effective sources of resistance to this disease. In this study, a survey was conducted during the period 2007–2011 in four different agro-climatic zones. Pathogenic variability in 52 isolates of FOP, collected from different pea-growing areas of western Algeria, were evaluated using 7 genotypes as differential hosts. Results indicated that the disease was prevalent in all fields prospected and isolates obtained were assigned to Races 1, 2, 5 or 6 by their pathogenicity. It was found out that Races 1 and 2 were more common in all areas with 61.5 and 19.2%, respectively. This study is the first report of pea Fusarium wilt races distribution in Algeria.
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A. Saleh, Talib. „Using Sonic Log to Predict Abnormal Pressure Zones in Selected Oil Wells (Western of Iraq)“. Iraqi Journal of Chemical and Petroleum Engineering 15, Nr. 2 (30.06.2014): 9–14. http://dx.doi.org/10.31699/ijcpe.2014.2.2.
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Two oil wells were tested to find the abnormal pressure zones using sonic log technique. We found that well Abu-Jir-3 and Abu-Jir-5 had an abnormal pressure zones from depth 4340 to 4520 feet and 4200 to 4600 feet, respectively. The maximum difference between obtained results and the field measured results did not exceed 2.4%.In this paper, the formation pressures were expressed in terms of pressure gradient which sometimes reached up to twice the normal pressure gradient.Drilling and developing such formations were dangerous and expensive.The plotted figures showed a clear derivation from the normal trend which confirmed the existence of abnormal pressure zones.
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Bąk, Krzysztof, und Marta Bąk. „Foraminiferal and radiolarian biostratigraphy of the youngest (Late Albian through Late Cenomanian) sediments of the Tatra massif, Central Western Carpathians“. Acta Geologica Polonica 63, Nr. 2 (01.06.2013): 223–38. http://dx.doi.org/10.2478/agp-2013-0009.
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Abstract Bąk, K. and Bąk M. 2013. Foraminiferal and radiolarian biostratigraphy of the youngest (Late Albian through Late Cenomanian) sediments of the Tatra massif, Central Western Carpathians. Acta Geologica Polonica, 63 (2), 223-237. Warszawa. The foraminiferal and radiolarian biostratigraphy of selected sections of the Zabijak Formation, the youngest sediments of the Tatra massif (Central Western Carpathians), have been studied. Benthic foraminifers, mainly agglutinated species, occur abundantly and continuously throughout the studied succession, while planktic foraminifers are generally sparse. Five planktic and two benthic foraminiferal zones have been recognized. The marly part of the Zabijak Formation comprises the Pseudothalmanninella ticinensis (Upper Albian) through the Rotalipora cushmani (Upper Cenomanian) planktic foraminiferal zones, and the Haplophragmoides nonioninoides and Bulbobaculites problematicus benthic foraminiferal zones. The radiolarians were recognized exclusively in the Lower Cenomanian part of the formation.
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Sparacino, Federica, Mimmo Palano, José Antonio Peláez und José Fernández. „Geodetic Deformation versus Seismic Crustal Moment-Rates: Insights from the Ibero-Maghrebian Region“. Remote Sensing 12, Nr. 6 (16.03.2020): 952. http://dx.doi.org/10.3390/rs12060952.
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Seismic and geodetic moment-rate comparisons can reveal regions with unexpected potential seismic hazards. We performed such a comparison for the Southeastern Iberia—Maghreb region. Located at the western Mediterranean border along the Eurasia–Nubia plate convergence, the region has been subject to a number of large earthquakes (M ≥ 6.5) in the last millennium. To this end, on the basis of available geological, tectonic, and seismological data, we divided the study area into twenty-five seismogenic source zones. Many of these seismogenic source zones, comprising the Western Betics, the Western Rif mountains, and the High, Middle, and Saharan Atlas, are characterized by seismic/geodetic ratio values lower than 23%, evidencing their prevailing aseismic behavior. Intermediate seismic/geodetic ratio values (between 35% and 60%) have been observed for some zones belonging to the Eastern Betics, the central Rif, and the Middle Atlas, indicating how crustal seismicity accounts only for a moderate fraction of the total deformation-rate budget. High seismic/geodetic ratio values (> 95%) have been observed along the Tell Atlas, highlighting a fully seismic deformation.
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Manasypov, R. M., O. S. Pokrovsky, S. N. Kirpotin und L. S. Shirokova. „Thermokarst lake waters across the permafrost zones of western Siberia“. Cryosphere 8, Nr. 4 (11.07.2014): 1177–93. http://dx.doi.org/10.5194/tc-8-1177-2014.
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Abstract. This work describes the hydrochemical composition of thermokarst lake and pond ecosystems, which are observed in various sizes with different degrees of permafrost influence and are located in the northern part of western Siberia within the continuous and discontinuous permafrost zones. We analysed the elemental chemical composition of the lake waters relative to their surface areas (from 10 to 106 m2) and described the elemental composition of the thermokarst water body ecosystems in detail. We revealed significant correlations between the Fe, Al, dissolved organic carbon (DOC) and various chemical elements across a latitude gradient covering approximately 900 km. Several groups of chemical elements that reflect the evolution of the studied water bodies were distinguished. Combining the data for the studied latitude profile with the information available in the current literature demonstrated that the average dissolved elemental concentrations in lakes with different areas depend specifically on the latitudinal position, which is presumably linked to (1) the elements leached from frozen peat, which is the main source of the solutes in thermokarst lakes, (2) marine atmospheric aerosol depositions, particularly near the sea border and (3) short-range industrial pollution by certain metals from the largest Russian Arctic smelter. We discuss the evolution of the chemical compositions observed in thermokarst lakes during their formation and drainage and predict the effect that changing the permafrost regime in western Siberia has on the hydrochemistry of the lakes.
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Jensen, Kevin J., Michael S. Thorne und Sebastian Rost. „SPdKS analysis of ultralow-velocity zones beneath the western Pacific“. Geophysical Research Letters 40, Nr. 17 (04.09.2013): 4574–78. http://dx.doi.org/10.1002/grl.50877.
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Kennedy, W. J., und W. A. Cobban. „Upper Campanian (Upper Cretaceous) ammonites from the Marshalltown formation-Mount Laurel boundary beds in Delaware“. Journal of Paleontology 71, Nr. 1 (Januar 1997): 62–73. http://dx.doi.org/10.1017/s0022336000038968.
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New collections from the Marshalltown Formation and basal Mount Laurel Sand along the Chesapeake and Delaware Canal in Delaware clarify the ammonite dating of the interval. The Marshalltown Formation yields Pachydiscus (Pachydiscus) sp., Menuites portlocki (Sharpe, 1855) complexus (Hall and Meek, 1856), a subspecies restricted to the Baculites gregoryensis and Baculites scotti zones in the Western Interior of the United States, and Didymoceras binodosum (Kennedy and Cobban, 1993a) known only from the B. scotti zone of the Western Interior and correlatives in Arkansas and Texas. The basal part of the Mount Laurel Sand contains a complex assemblage preserved as phosphatic molds: Nostoceras (Nostoceras) monotuberculatum Kennedy and Cobban, 1993a, Nostoceras (N.) sp., Didymoceras platycostatum (Kennedy and Cobban, 1993b), D. stevensoni (Whitfield, 1877) (previously thought to be from the Marshalltown) and Exiteloceras jenneyi (Whitfield, 1877). The last two are index species of their eponymous zones in the Western Interior. This sequence is compatible with ammonites from the Wenonah Formation, which lies between the Marshalltown and Mount Laurel to the north and contains ammonites indicative of the Baculites scotti zone, and the fauna from higher in the Mount Laurel Sand, which includes elements of the Didymoceras cheyennense and Baculites compressus zones of the Western Interior sequence.
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Dauvin, Jean-Claude. „An Update of Amphipoda Checklist for the English Channel“. Diversity 14, Nr. 10 (21.09.2022): 783. http://dx.doi.org/10.3390/d14100783.
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An updated checklist for 2022 of amphipods from the English Channel (La Manche) is given for eight geographical zones. This revision brings the inventory of 1999 up to date with recent data from the Normano-Breton Gulf and other studies focused on non-indigenous fauna, as well as recent data from benthic and suprabenthic studies, mainly in the eastern part of the English Channel (EC). The total number of species in the entire EC is 269. The number of species is much higher in the western basin (WEC) than it is in the eastern basin (EEC) or in the central part of the EC. The amphipod species listed here are distributed between the eight zones as follows: French WEC: 201 species; English WEC: 194; Normano-Breton Gulf: 224; Bay of Seine: 172; Wight: 97; French EEC: 149; English EEC: 64; and Central EC: 61. Of these species, 180 are present in both basins of the EC, while 78 are present only in the western basin and 11 are present only in the eastern basin. The low number of amphipods (<100) recorded in three of the eight zones is probably due to the lack of observations in these parts of the EC. Among the 269 amphipod species recorded with confidence in the EC, 24 are new to the EC since 1999, 12 are non-indigenous species, and 44 are observed only in one of the eight zones, mainly in the three zones of the western basin of the EC.
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Mahmud, I., M. L. Garba, I. I. Ahmed, B. Onoja, A. Muhammad und A. T. Dahiru. „VERY LOW FREQUENCY ELECTROMAGNETIC (VLF-EM) SURVEY FOR GROUNDWATER DEVELOPMENT IN BICHI/BAGWAI AREA, NORTH WESTERN NIGERIA“. FUDMA JOURNAL OF SCIENCES 7, Nr. 5 (31.10.2023): 318–27. http://dx.doi.org/10.33003/fjs-2023-0705-1977.
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Abstarct
Detailed Very Low Frequency Electromagnetic (VLF-EM) hydrogeophysical survey was undertaken to identify conductive zones and recommend potential areas for possible groundwater development in the Bichi area of Kano state northwestern Nigeria. Geologically, the area is characterized by porphyritic granite, coarse grained granite and medium to fine grained granite. The VLF-Electromagnetic method was adopted as a fast reconnaissance tool to map possible linear fractures. During the survey, measurements were taken at a station interval of 20 m along each profile line ranging from 0 – 420 m, making a total of six VLF-EM traverses which were mapped in the study area. The filtered components for both real and imaginary parts of the VLF-EM data were plotted against distance for each profile using the Karous–Hjelt filter® computer software to interpret and identify the top of linear fractures. The Very Low frequency (VLF) normal and filtered component anomalies identified ten (10) major geological interfaces suspected to be faults/fractured zones (f1 – f10). These suspected zones were marked as targets for future groundwater development in the area since these anomalous zones are areas of high conductivity and this parameter is one of the physical characteristics of water saturated zones. Therefore, this work has proven that VLF method is robust in tying down good locations for groundwater development in rural areas.
Keywords: Electromagnetic, Hydrogeophysical, Groundwater Development, Conductive Zones, Fault, Fractures.
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Podobina, Vera. „Foraminifera and Late Cenomanian-Turonian biostratigraphy of the northern palaeobiogeographic district of Western Siberia“. Geologos 19, Nr. 3 (01.09.2013): 201–27. http://dx.doi.org/10.2478/logos-2013-0013.
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Abstract The study of 114 core samples from seven borehole sections of the Van-Eganskaya area in the central part of Western Siberia yielded sufficient data to investigate the Late Cenomanian-Turonian foraminifers, palaeoenvironments, and the Late Cenomanian-Turonian biostratigraphy of this poorly studied area. Two Late Cenomanian foraminifer zones were established, viz. a (lower) Saccammina micra - Ammomarginulina sibirica Zone and an (upper) Trochammina wetteri tumida - Verneuilinoides kansasensis Zone. They reflect changes in the species composition of the foraminifer assemblages and lithology of the host rocks of the Uvatskian Horizon. In the lower part of the upper zone, beds with Gaudryinopsis nanushukensis elongatus are present. The changes in the species composition and lithology of the upper Cenomanian resulted from water-depth variations during the Boreal transgression. Two distinct assemblages and two homonymous zones, viz. the (lower) Gaudryinopsis angustus and the (upper) Pseudoclavulina hastata zones occur in the Turonian clayey cap-rocks of the superimposed Kuznetsovskian Horizon. Comparison of the Late Cenomanian-Turonian assemblages from the West-Siberian and Canadian provinces of the same Arctic palaeobiogeographical realm shows that the West-Siberian species are the same as, and closely related to, Canadian taxa, along with geographical subspecies. This comparison allows a detailed correlation, which results in a precise dating of the foraminifer zones.
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Ponomareva, Elena, und Svetlana Ryzhkova. „PALEOGEOGRAPHY OF THE VOLGA TIME OF THE SOUTH-WESTERN REGIONS OF THE WEST SIBERIAN SEDIMENTARY BASIN“. Interexpo GEO-Siberia 2, Nr. 1 (2019): 156–62. http://dx.doi.org/10.33764/2618-981x-2019-2-1-156-162.
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On the basis of a comprehensive analysis of materials of geochemical, lithological and paleontological studies, the paleogeographic zones of the Volga time were traced. It was revealed that the sea zone with depths of 200-500 m occupied most of the south-western regions of Western Siberia. The zone of the sea with depths up to 100 m was close to the shore. In these zones, heterogeneous rocks of the Bazhenov Formation, the lower units of the Tutleim and Mulym’ya Formation and the upper unit of the Danilov Formation were formed with Corg concentrations from 8 to 0.5 %.
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Vázquez-de-Aldana, B. R., A. García-Ciudad und B. García-Criado. „Interannual variations of above-ground biomass and nutritional quality of Mediterranean grasslands in Western Spain over a 20-year period“. Australian Journal of Agricultural Research 59, Nr. 8 (2008): 769. http://dx.doi.org/10.1071/ar07359.
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The ‘dehesas’ are savannah-like semi-arid grasslands typical of western Spain, which are subject to strong inter-annual variations in biomass production. Over a 20-year period, from 1986 to 2005, above-ground biomass and the nutritional quality of these grasslands in the province of Salamanca (western Spain) were evaluated to determine the relationships between interannual variations in grassland parameters and climate variables (precipitation and temperature). Herbage samples were collected from several sites, along a topographic gradient that differentiated two types of herbaceous communities on the upper and lower part of the slope. Nutritional quality was assessed on the basis of protein, acid detergent fibre, neutral detergent fibre, lignin and digestibility. On both the upper and lower zones, total biomass and biomass of grasses were correlated with annual precipitation calculated from the previous October to the current June. Biomass of legumes and forbs, on the upper zones, was correlated with spring precipitation. Step-wise multiple regression analysis provided different models for grasses, legumes, forbs, and total biomass for the upper and lower zones. Protein concentration was negatively correlated with annual precipitation in both zones of the slope. The number of days in spring with precipitation (≥1 mm or ≥10 mm) was a good predictor of the lignin content and digestibility in both zones of the slope, and of the acid detergent fibre content on the upper zones and the neutral detergent fibre content on the lower zones.
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Dokmanovic, Petar, und Veljko Marinovic. „Groundwaters of the "Valjevo karst" area (Western Serbia)“. Annales g?ologiques de la Peninsule balkanique 82, Nr. 1 (2021): 47–58. http://dx.doi.org/10.2298/gabp210311002d.
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?Valjevo karst? is an area of about 780 km2 in a broader sense, while the uncovered karstified limestone makes about 330 km2. It is a part of the Inner Dinarides (Western Serbia). In the litho-stratigraphic view, the karstified limestones of Middle?Upper Triassic dominate, in which karst aquifers are formed. Analysis and systematization of the available data of hydrogeological and other relevant research is carried out. A branched network of groundwater traces between swallow holes and discharge points is presented as well as main features of sixteen karst springs (or scattered discharge zones) and nine (group of) wells, divided into five sectors. Average karst aquifer discharge of the whole area is calculated on 5.18 m3/s. Total minimum flow rate of the analysed karst springs and discharge zones is estimated at 1.2 m3/s, while the total flow rate of the analysed wells is estimated at about 0.3 m3/s, which makes about 1.5 m3/s of total (minimum) discharge. All analysed waters are low-mineralized (<1 g/l), while temperatures range from 9?35 ??. Use of the waters is multipurpose: municipal and local water supply, commercial bottling, recreational pools etc.
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Kokkinidou, Dimitra, und Katerina Trantalidou. „Neolithic and Bronze Age Settlement in Western Macedonia“. Annual of the British School at Athens 86 (November 1991): 93–106. http://dx.doi.org/10.1017/s0068245400014921.
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The aim of this paper is to provide an account of neolithic and bronze age settlement in one part of Macedonia: the geographical unit which is defined by the rivers Aliakmon and Axios. The choice of the area as the focus of investigation has been suggested by the hypothesis that geographical zones may form a historical basis for human activity, and cultural zones be identified accordingly with distinct physiographic units. The area selected for research is one such unit forming consecutive basins which are divided into valley systems by means of mountain ranges.The existing archaeological data combined with the results of personal research and original fieldwork are assembled in order to outline the development of human settlement in this part of Macedonia. The catalogue contains ninety six sites. The study involves an attempt to evaluate the nature of prehistoric habitation in a regional context, a study which presupposed some examination of all reported sites, and some study of the history of the landscape. The main issues discussed are the character of habitation patterns and settlement distribution and continuity by period. Finally the specific settlement patterns of the area are compared with patterns observed in neighbouring regions.
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Gladysheva, Ya I. „PREDICTION OF PARAMETERS FOR COMMERCIAL OIL-AND-GAS CONTENT ZONES OF JURASSIC SEDIMENTS IN THE NORTH OF WESTERN SIBERIA“. Oil and Gas Studies, Nr. 6 (20.01.2019): 9–15. http://dx.doi.org/10.31660/0445-0108-2018-6-9-15.
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Discovered hydrocarbon deposits in a number of fields are the characteristic of the industrial productivity of Jurassic sediments in the north of Western Siberia. Most of the deposits are in the Middle Jurassic sediments, the signs of hydrocarbons have been obtained in the Lower Jurassic sediments, single deposits have been obtained in the Upper Jurassic sediments. This uneven distribution of deposits in the Jurassic oil and gas bearing facility is associated with the complexity of its structure. Therefore, there is a need to conduct a comprehensive analysis of the geological structure of Jurassic sediments, to identify geological parameters to predict commercial oiland-gas content zones in the investigated territory.Based on the results of the study of deep drilling data, seismic survey in the north of Western Siberia, schematic maps of the depth zones of Jurassic sediments have been constructed, the author of the article determines the parameters of industrial productivity zones. The most significant parameter is abnormally high formation pressure. Based on the conducted researches, the author notes the prospective commercial oil-and-gas content zones for Jurassic sediments within NadymPur watershed.
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Lü, Xiuxiang, Weiwei Jiao, Xinyuan Zhou, Jianjiao Li, Hongfeng Yu und Ning Yang. „Paleozoic Carbonate Hydrocarbon Accumulation Zones in Tazhong Uplift, Tarim Basin, Western China“. Energy Exploration & Exploitation 27, Nr. 2 (April 2009): 69–90. http://dx.doi.org/10.1260/0144-5987.27.2.69.
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Diverse types of marine carbonate reservoirs have been discovered in the Tazhong Uplift, Tarim Basin, and late alteration of such reservoirs is obvious. The marine source rocks of the Cambrian-lower Ordovician and the middle-upper Ordovician provided abundant oil and gas for hydrocarbon accumulation. The hydrocarbons filled various reservoirs in multiple stages to form different types of reservoirs from late Caledonian to early Hercynian, from late Hercynian to early Indosininan and from late Yanshanian to Himalayan. All these events greatly complicated hydrocarbon accumulation. An analysis of the discovered carbonate reservoirs in the Tazhong Uplift indicated that the development of a reservoir was controlled by subaerial weathering and freshwater leaching, sedimentation, early diagenesis, and alteration by deep fluids. According to the origin and lateral distribution of reservoir beds, the hydrocarbon accumulation zones in the Tazhong area were identified as: karsted reservoirs, reef/bank reservoirs, dolomite interior reservoirs, and hydrothermal reservoirs. Such carbonate hydrocarbon accumulation zones are distributed mainly in specific areas of the Tazhong uplift, respectively. Because of differences in the mechanism of reservoir formation, the reservoir space, capability, type and distribution of reservoirs are often different in different carbonate hydrocarbon accumulation zones.
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Safronova, Irina, und Tatiana Yurkovsksya. „The latitudinal distribution of vegetation cover in Siberia“. BIO Web of Conferences 16 (2019): 00047. http://dx.doi.org/10.1051/bioconf/20191600047.
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The latitudinal changes of vegetation cover on the plains of Siberia are observed. In Western Siberia there are 4 zones (tundra and taiga, and forest-steppe and steppe only here), in Central and North-Eastern Siberia − only 2 zones (tundra and taiga).Tundra zone is represented by 4 subzones in Central Siberia; in Western and North-Eastern Siberia − by 3 subzones (there are no polar subzone). All 5 subzones of the taiga zone are distinguished both in Western Siberia and in the Central Siberia, but in the Central Siberia, forests are found in very high latitudes. The feature of the taiga zone of Western Siberia is high paludification. As a result, the vegetation of mires dominates over the zonal vegetation. Zonal West Siberian types are dark coniferous forests. Light coniferous forests predominate in the taiga zone of Central and North-Eastern Siberia. In the forest-steppe zone in Western Siberia forests are small-leaved − birch, aspen-birch (Betula pendula, Populus tremula). The abundance of mires is the feature of this zone, as well as in the taiga.
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Novikov, Dmitry A. „Geothermal features of the western part of Yenisei-Khatanga regional trough“. Oil and Gas Studies, Nr. 2 (27.05.2019): 28–36. http://dx.doi.org/10.31660/0445-0108-2019-2-28-36.
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The article deals with the results of a comprehensive study of the geothermal conditions of oil and gas bearing deposits in the western part of Yenisei-Khatanga regional trough. Four types of vertical geothermal zonality are established, the characteristics of which depend on the geological evolution of different parts of the sedimentary basin. The minimal geothermal gradients (1,80–2,2 0 C/100 m) are established there in the near edge zones with a small thickness of the sedimentary cover and the development of the infiltration system. The maximum gradients (3,2–3,4 0 С/100 m) are established in the zones of disjunctive tectonics, which had a significant heating effect on the geological section due to the ascending discharge of groundwater from deep-lying aquifers.
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Dentith, Michael, Huaiyu Yuan, Simon Johnson, Ruth Murdie und Perla Piña-Varas. „Application of deep-penetrating geophysical methods to mineral exploration: Examples from Western Australia“. GEOPHYSICS 83, Nr. 3 (01.05.2018): WC29—WC41. http://dx.doi.org/10.1190/geo2017-0482.1.
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The emergence of the concept of a “mineral system” has changed the way regional-scale mineral prospectivity is assessed. Geographically widespread data sets and deep-penetrating geophysical methods are required to map the various components of the mineral system, which may encompass areas of perhaps thousands of square kilometers and extend to mantle depths. Key mineral system components that can be detected in this fashion include deep-penetrating faults and the suture zones between major geologic blocks, which are important controls on the movement of metal-carrying magmas and brines in a variety of mineral systems. Two case studies from mineralized terrains in Western Australia illustrate the use of deep-penetrating geophysical methods in mineral exploration. Magnetotelluric (MT) data from a 300-km-long traverse in the Archean Yilgarn Craton map numerous steeply dipping conductive zones, which coincide with linear anomalies in potential field data and are interpreted as deep-penetrating faults. Also, lateral changes in crustal and upper mantle resistivity structure suggest the juxtaposition of two, or perhaps three, different major crustal blocks with intervening suture zones. Teleseismic data from a 250-km-long traverse in the Proterozoic Capricorn Orogen provide information on deep crustal structure and composition. Interpretation in association with deep seismic reflection data allows previously unrecognized suture zones to be recognized in the deep crust and under thick cover. Passive seismic and MT methods represent a comparatively cost effective way to identify key mineral system indicators of regional prospectivity, even in the geologically complex terrains of Western Australia.