Results 51 to 60 of about 1,267 (203)
Distribution of Upper Paleozoic Coal Seams in the Southeastern Ordos Basin
Energies, 2022 The Ordos Basin contains abundant coal resources in the Upper Paleozoic strata. They are shallowly buried or exposed in the periphery of the basin, forming recoverable coal mines and coalbed methane resources.
Yunwen Guan +5 more
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Geofluids, Volume 2017, Issue 1, 2017., 2017 Two fundamental forms of hypogenic karst systems (lateral stratiform hypogenic and cross‐formational fault‐vein hypogenic karst system) are distinguished mainly by differential effects of preexisting faults. In seismic cross sections, hypogenic karst systems are expressed as complex string-beads‐like seismic reflections associated with faults.
Hongtao Zhu +3 more
wiley +1 more source
Paleokarst in Phong Nha - Ke Bang - Hin Nam No and its Geomorphological and Geological Values
VNU Journal of Science Earth and Environmental Sciences: Paleokarst, a karst landform developed in the geologic past and often buried by younger sedimentary rocks, has not received much attention in Vietnam.
M. T. Tân +5 more
semanticscholar +1 more source
Physio-Géo, 2012 Description and speleogenesis of some caves in the calcareous formations of the "Massif des Calanques" in relation with lithology and tectonic environments: faults, Sormiou anticline, submersion coast in the "Calanques" valleys, karstic landscapes until ...
Jean-Joseph Blanc
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Geological Society of America BulletinSeismic interpretation and characterization of Middle Ordovician carbonates of the northern Tarim Basin in China reveal a series of deep-seated, sub-vertical conjugate strike-slip faults, together with sets of apparently layer-bound fractures striking ...
Qingqing Sun +7 more
semanticscholar +1 more source
Ancient karst at the eastern slope of the Middle Urals and the Early-Middle Carboniferous boundary
Литосфера, 2016 The paleokarst occurrences associated with Lower Carboniferous limestones in the east of the Middle Urals are considered. We analyse the nature of the Early-Middle Carboniferous boundary.
G. A. Mizens +3 more
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African Journal of HerpetologyAnurans are widely diversified in South Africa, with more than 150 recognised species across the country. However, most the known fossil records of anurans are concentrated in the southern part of South Africa, within the rich Pliocene site of ...
A. Lemierre +3 more
semanticscholar +1 more source
Carsologica SinicaOil and gas fields in karst carbonate reservoirs are widely distributed in China. A number of karst fracture-vuggy reservoirs have been found in the Tarim Basin, the Ordos Basin and the Sichuan Basin.
Zhaolong GAO +6 more
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Petroleum Exploration and Development, 2016 Based on the analysis of deposition and tectonism, “residual thickness method” is used to restore the paleokarst landform of Middle Permian Maokou Formation in northwestern Sichuan Basin.
Dahai TANG +7 more
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Revista Mexicana de Ciencias Geológicas, 2018 El paleokarst expuesto en las rocas cretácicas de la Plataforma de Actopan (Estado de Hidalgo) permite investigar, mediante la petrología y la geoquímica, la posición de las zonas vadosa y freática que propiciaron la formación del antiguo karst durante ...
Baldomero E. Carrasco-Velázquez +3 more
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