Results 41 to 50 of about 718,980 (307)

Dolomite genesis and reservoir-cap rock assemblage in carbonate-evaporite paragenesis system

Petroleum Exploration and Development, 2019
Regarding to the problem on the reservoir-cap rock assemblage evaluation in the carbonate-evaporite paragenesis system, this study examined the dolomite and reservoirs genesis and the characteristics of reservoir-cap rock assemblage.
Anping HU, Anjiang SHEN, Hanxuan YANG, Jie ZHANG, Xin WANG, Liu YANG, Shaoxing MENG   +6 more
doaj   +1 more source

Laboratory Models of Microbial Biosignatures in Carbonate Rocks [PDF]

, 2005
Enigmatically shaped laminated carbonate rocks called stromatolites dominated shallow marine environments for the first 80% of Earth’s history, and are potentially the oldest macrofossils.
Bosak, Tanja
core   +1 more source

Stable oxygen and carbon isotope compositional fields for skeletal and diagenetic components in New Zealand Cenozoic nontropical carbonate sediments and limestones: A synthesis and review [PDF]

, 1996
The stable oxygen isotope composition (δ18O) of a precipitated carbonate depends mainly on the isotope composition, salinity, and temperature of the host fluid, whereas the stable carbon isotope composition (δ13C) reflects the source of CO2 for ...
Nelson, Campbell S., Campbell S. Nelson, Smith, Abigail M., Abigail M. Smith   +3 more
core   +1 more source

Geochemical characteristics and origin of dolomite: A case study from the middle assemblage of Ordovician Majiagou Formation Member 5 of the west of Jingbian Gas Field, Ordos Basin, North China

Petroleum Exploration and Development, 2014
The trace elements, rare earth elements (REE), carbon and oxygen isotopic compositions and strontium isotopes were analyzed to study systematically the geochemical characteristics and origin of the middle assemblage dolomites from the Ordovician Majiagou
Xunyun HE, Jianfeng SHOU, Anjiang SHEN, Xingning WU, Yongsheng WANG, Yuanyuan HU, Yin ZHU, Dongxiao WEI   +7 more
doaj   +1 more source

Contrasting carbonate depositional systems for Pliocene cool-water limestones cropping out in central Hawke's Bay, New Zealand [PDF]

, 2004
Pliocene limestone formations in central Hawke's Bay (eastern North Island, New Zealand) accumulated on and near the margins of a narrow forearc basin seaway within the convergent Australia/Pacific plate boundary zone.
Nelson, Campbell S., Caron, Vincent, Campbell S. Nelson, Kamp, Peter J.J., Peter J. J. Kamp, Vincent Caron   +5 more
core   +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

Control of paleogeographic pattern on sedimentary differentiation of evaporite-carbonate symbiotic system: A case study of the sixth sub-member of Ordovician Majiagou Formation M5 Member in central-eastern Ordos Basin, NW China

Petroleum Exploration and Development, 2022
The relationship between paleogeographic pattern and sedimentary differentiation of evaporite-carbonate symbiotic system is examined based on logging, core and thin section data, by taking the sixth sub-member of fifth member of Ordovician Majiagou ...
Shoukang ZHONG, Xiucheng TAN, Guang HU, Wancai NIE, Mengying YANG, Daofeng ZHANG, Jianfeng ZHENG, Jie XU, Guodong DONG, Di XIAO, Zixing LU   +10 more
doaj   +1 more source

Design of Carbon–Carbon Ylides

Angewandte Chemie
Abstract Here, we have reported the computational design of a new class of ylides, elusive carbon–carbon ylides featuring zwitterionic σ‐bonds, derived from the norbornane‐2,6‐dione framework. Utilizing the state‐of‐the‐art computational methods, we have demonstrated that appropriate substitutions on this scaffold
Muhammad Yasir Mehboob, Emran Masoumifeshani, Zahra Badri, Cina Foroutan‐Nejad   +3 more
openaire   +2 more sources

Differential development mechanisms and prediction of reservoirs in the 4th Member of Sinian Dengying Formation on eastern side of Deyang-Anyue rift, Sichuan Basin, China

Petroleum Exploration and Development
Reservoirs of the 4th member of the Sinian Dengying Formation (Deng-4 Member) around the Deyang-Anyue intraplatform rift in the Sichuan Basin are highly heterogeneous, alongside with unclear genesis and distribution of high-quality reservoirs. This study
Tianjie Jin, Anjiang Shen, Feng Liang, Zhanfeng Qiao, Junmao Duan, Xi Li, Qiuding Du   +6 more
doaj   +1 more source

The geochemical characteristics and origin analysis of the botryoidal dolomite in the Upper Sinian Dengying Formation in the Sichuan Basin, China

Journal of Natural Gas Geoscience, 2019
Botryoidal dolomite has great value for petroleum exploration and has dominantly developed in the middle and lower part of Member II in the Sinian Dengying Formation in the Sichuan Basin.
Anping Hu, Anjiang Shen, Ying Wang, Liyin Pan, Yongsheng Wang, Yi Hao, Jie Zhang   +6 more
doaj   +1 more source