Results 81 to 90 of about 708,392 (326)

New Permian Paleomagnetic and Geochronologic Results From the Alxa Block: Constraints on Its Tectonic Affinity and the Closure of Paleo‐Asian Ocean

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract The Paleo‐Asian Ocean's (PAO) closure timing and the Alxa Block's (ALB) tectonic affinity remain debated. We present new paleomagnetic and geochronologic data from Permian volcanic and sedimentary rocks in the ALB. Characteristic remanent magnetization (ChRM) directions from Early (∼282 Ma), Middle (∼268 Ma), and Late Permian (∼255 Ma) rocks ...
Wei Xu, Bo Song, Jizhong Shi, Yan Li, Baowen Wang, Xiaozhou Ye, Xiaofeng Han, Haihong Xu, Yunpeng Zhang, Huiyuan Zhang, Zhiming Sun   +10 more
wiley   +1 more source

The Differential Enrichment Law of Tight Sandstone Gas in the Eighth Member of Shihezi Formation in the North and South of Ordos Basin

Energies
Unconventional oil and gas resources are important energy sources for alleviating energy crises and maintaining sustainable social development. Therefore, the subsequent exploration and development of the basin summarizes and analyzes the reasons for the
Haoyuan Wang, Jingong Zhang, Zishu Yong, Xiumei Qu   +3 more
doaj   +1 more source

Carbon and Hydrogen Isotopic Reversals in Highly Mature Coal-Derived Gases: A Case Study of Paleozoic Gases in the Southern Ordos Basin, China

Geofluids, 2019
The compositional carbon isotopic series δ13C-CH42.4%. Where 2.4%>Ro>2.0%, almost all gases display partial isotopic reversal, with δ13C-CH4>δ13C-C2H6 or δ13C-C2H6>δ13C-C3H8. Carbon isotopic reversal in coal-derived gases is not caused by abiotic origin,
Dan Liu
doaj   +1 more source

Characteristics and evolution of microbial carbonate reservoirs in the Pingliang Formation on the southern margin of Ordos Basin

Shiyou shiyan dizhi, 2022
As an important type of hydrocarbon reservoir, microbial carbonate contains great amount of hydrocarbon resources. The recent discovery of industrial gas in the Majiagou Formation in the east-central part of the Ordos Basin indicates that this type of ...
Juntao ZHANG, Xiaohui JIN, Dongsheng SUN, Jiaqi YANG, Qian DING   +4 more
doaj   +1 more source

A Comprehensive Crustal Coda Attenuation Map of Continental China

Geophysical Research Letters, Volume 52, Issue 19, 16 October 2025.
Abstract Seismic coda wave attenuation (QC) reflects both intrinsic inelasticity and small‐scale heterogeneities in the Earth's crust, offering insights into its thermal state and structural complexity. Continental China, characterized by widespread plate boundary deformation, is among the most tectonically active regions globally.
Fan Yang, Wei Wang, Yutong Liang, Sidan Chen, Li Sun, Wenze Deng, Nozomu Takeuchi, Juan Li   +7 more
wiley   +1 more source

Sedimentation of the Lower Cretaceous Xiagou formation and Its Response to Regional Tectonics in the Qingxi Sag, Jiuquan Basin, NW China [PDF]

, 2014
Under the constraint of an isochronous sequence stratigraphic framework, sediment infill of the Xiagou Formation reflects the overall control of dynamic tectonic movements and episodic sedimentations in the Qingxi Sag.
Chen, Si, Gan, Huajun J., Jin, Siding D., Lv, Zhenyu Y., Wang, Hua, Wei, Jun   +5 more
core   +1 more source

A feasibility study of geological CO2 sequestration in the Ordos Basin, China

Energy Procedia, 2011
AbstractThe Shaanxi Province/Wyoming CCS Partnership (supported by DOE NETL) aims to store commercial quantities of CO2 safely and permanently in the Ordovician Majiagou Formation in the northern Ordos Basin, Shaanxi Province, China. This objective is imperative because at present, six coal-to-liquid facilities in Shaanxi Province are capturing and ...
Zunsheng Jiao, Lifa Zhou, Ronald C. Surdam, Philip H. Stauffer, Tingting Luo   +4 more
openaire   +2 more sources

Quantitative Identification and Distribution Pattern of Macrolithotype of Coal in Deep Coal Seams of the Daji Block

Energy Science &Engineering, Volume 13, Issue 10, Page 4839-4852, October 2025.
ABSTRACT The construction of a logging response model for macrolithotypes in coal has been successfully completed. This model has enabled delineation of vertical and planar distribution patterns of coal macrolithotypes within the #5 and #8 coal seams of the Daji block, as well as to forecast the distribution of favorable reservoir conditions.
Wei Zhang, Liheng Bian, Mingqing Hu, Peng Wu, Tim A. Moore, Jian Shen   +5 more
wiley   +1 more source

Study on the Early Cretaceous fluvial-desert sedimentary paleogeography in the Northwest of Ordos Basin

Open Geosciences, 2023
Early Cretaceous desert sedimentary system was developed in Northwest Ordos Basin. At present, the research degree of desert sedimentary paleogeography is low.
Feng Yangwei, Ren Yan, Xia Fei, Jiang Ting, Lu Fengxian, Guo Jiazeng   +5 more
doaj   +1 more source

Pore Structure of Tight Sandstones With Different Sedimentary Microfacies in the Chang 6–Chang 9 Layers, Triassic Yanchang Formation, Wuqi Area, Ordos Basin

Energy Science &Engineering, Volume 13, Issue 10, Page 4900-4916, October 2025.
Taking the Chang 6–Chang 9 layers in the Wuqi area of the Ordos Basin as a case study, this study investigates the pore characteristics of tight sandstones formed under different sedimentary microfacies. The results indicate that tight sandstones associated with distinct sedimentary microfacies exhibit significant variations in pore types, pore size ...
Liling Zhang, Dayou Chen, Liping Rao, Xuan Li, Meng Wang, Wenjian Zhu, Yizhe Wang, Yushuang Zhu   +7 more
wiley   +1 more source