Results 41 to 50 of about 1,267 (203)

A framework for assessing the role of karst conduit morphology, hydrology, and evolution in the transport and storage of carbon and associated sediments

Acta Carsologica, 2013
Karst aquifers and conduits form by dissolution of carbonate minerals and the slow release of inorganic carbon to the surface environment. As conduits evolve in size, morphology, and position within the aquifer, their function and capacity change ...
George Veni
doaj   +1 more source

Sedimentary environment and petrological features of organic-rich fine sediments in shallow water overlapping deposits: A case study of Cambrian Yuertus Formation in northwestern Tarim Basin, NW China

Petroleum Exploration and Development, 2020
: Taking the Cambrian Yuertus Formation outcrop profiles in the Aksu-Keping-Wushi areas of northwestern Tarim Basin as examples, the depositional environments of organic rich fine sediment were analyzed by examining the outcrop profiles macroscopically ...
Zhimin JIN, Xiucheng TAN, Hao TANG, Anjiang SHEN, Zhanfeng QIAO, Jianfeng ZHENG, Fei LI, Shixuan ZHANG, Lei CHEN, Chenggang ZHOU   +9 more
doaj   +1 more source

Distribution of Paleokarst Water Table and Fault-Related Control on Reservoirs: Yingshan Formation, Tahe Oilfield, Tarim Basin

Lithosphere
The fluctuating dissolution of the water table, a key area of interest for paleokarst geologists, forms large karstic cavity reservoirs within horizontal runoff zones.
Chenhe Zhang, Zhiqian Gao, Hui Lv, Tai-liang Fan, Debin Yang, Jun Wu, Duan Wei, Jinxian Liu   +7 more
semanticscholar   +1 more source

Study on the development model of deep carbonate paleokarst reservoirs in the Tarim Basin

Carsologica Sinica
As a critical hydrocarbon-bearing basin in China, the Tarim Basin contains exceptionally abundant oil and gas resources within its Paleozoic marine carbonate formations, particularly in the deep subsurface where it exhibits significant exploration ...
Qingyu ZHANG, Guoquan NIE, Shaocong JI, Hongqi DONG, Jingrui LI, Junjie BA, Guochen MO, Meng ZHANG   +7 more
doaj   +1 more source

Perfiles paleokarsticos en el techo de la unidad intermedia del mioceno de la cuenca de Madrid

Estudios Geologicos, 2003
En el techo de la Unidad Intermedia del Mioceno de la Cuenca de Madrid se ha desarrollado un paleokarst temprano, somero y de forma tabular que muestra un marcado control litológico y del dispositivo de facies deposicionales en su génesis.
J. C. Cañaveras, S. Sánchez-Moral, S. Sánchez-Moral, S. Ordóñez, S. Ordóñez, J. P. Calvo, J. P. Calvo   +6 more
doaj   +1 more source

Fábricas diagenéticas asociadas al paleokarst del techo de la Unidad Intermedia del Mioceno de la cuenca de Madrid

Estudios Geologicos, 1997
Los materiales carbonáticos y evaporíticos del techo de la Unidad Intermedia del Mioceno de la Cuenca de Madrid han actuado como soporte de fenómenos de karstificación temprana, cuyo desarrollo ha supuesto un cambio significativo en la evolución del ...
J. C. Cañaveras, M. Hoyos, S. Ordóñez, J. P. Calvo   +3 more
doaj   +1 more source

Rock Magnetic‐Based Cyclic Expression in Late Visean Ramp Carbonates and an Astrochronology for the Late Asbian From Northwest England

Paleoceanography and Paleoclimatology, Volume 39, Issue 3, March 2024.
Abstract The late Asbian appears to mark the initial, well‐documented, onset of far‐field glacio‐eustatic changes in equatorial Mississippian strata. This work unravels the nature of cyclicity in upper Asbian shallow marine carbonates, using a combination of petrographic study, rock magnetic proxies and astrochronological testing on samples from the ...
Mark W. Hounslow, Pedro Cózar, Ian D. Somerville, Andrew J. Biggin   +3 more
wiley   +1 more source

Types of Fluid Alteration and Developing Mechanism of Deep Marine Carbonate Reservoirs

Geofluids, Volume 2019, Issue 1, 2019., 2019
Accurate recognition of the types of alteration fluid and the development mechanisms are important concerns in studying deep marine carbonate reservoirs. Major fluid types, such as seawater, meteoric water, deep burial formation water, hydrothermal fluid, and thermochemical sulfate reduction‐ (TSR‐) derived fluid, were identified based on carbon ...
Dongya Zhu, Quanyou Liu, Juntao Zhang, Qian Ding, Zhiliang He, Xuefeng Zhang, Julien Bourdet   +6 more
wiley   +1 more source

Geological Composition and Structure of the Filling Zone and Its Water‐Resisting Property Evaluation on the Top of Ordovician Limestone

Geofluids, Volume 2019, Issue 1, 2019., 2019
With the gradual increase in mining depth of coal fields in North China, the threat posed by karstic Ordovician limestone water to the safe stoping of mines is becoming increasingly prominent. Investigating the water‐resisting property of the filling zone on the top of the Ordovician limestone provides the key to safe mining under pressure.
Qiqing Wang, Wenping Li, Qiangqiang Liu, Mauro Cacace   +3 more
wiley   +1 more source

Multiphase Calcite Cementation and Fluids Evolution of a Deeply Buried Carbonate Reservoir in the Upper Ordovician Lianglitag Formation, Tahe Oilfield, Tarim Basin, NW China

Geofluids, Volume 2017, Issue 1, 2017., 2017
Oil and gas have been found in the Upper Ordovician Lianglitag Formation carbonates in the Tahe Oilfield, Tarim Basin, NW China. This study documents the origin of diagenetic fluids by using a combination of petrology, SIMS, fluid inclusion, and radiogenic isotope analysis. Six stages of calcite cements were revealed.
Jiaqing Liu, Zhong Li, Lijuan Cheng, Jiawei Li, Zhijun Jin   +4 more
wiley   +1 more source