Results 21 to 30 of about 8,346 (187)

Sequence stratigraphy of the Middle Jurassic Yan’an Formation (NE Ordos Basin, China), relationship with climate conditions and basin evolution, and coal maceral’s characteristics

Frontiers in Earth Science, 2023
The Yan’an Formation of the Ordos Basin in North China is among the largest and most extensively studied Jurassic coal reservoirs in the world. The lacustrine Yan’an Formation was investigated near Dongsheng (Ordos Basin, China) in its sequence ...
Dawei Lv, Dawei Lv, Yangyang Shen, A. J. Tom van Loon, Munira Raji, Zhihui Zhang, Guangzeng Song, Zhouhe Ren, Yujia Wang, Dongdong Wang   +9 more
doaj   +1 more source

Analysis of the Pore Structure of Shale in Ordos Basin by SEM with Nitrogen Gas Adsorption-Desorption

Yankuang ceshi, 2015
Identification of porosity in shale is of great significance for exploring mechanism of shale gas. Porosity properties of the shale samples from the Ordos Basin were characterized by multiple techniques including Scanning Electron Microscope(SEM ...
CHEN Sheng-rong, SHUAI Qin, GAO Qiang, TIAN Ya, XU Sheng-rui, HUANG Yun-jie   +5 more
doaj   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

Lithofacies paleogeography of the Ordovician Kelimoli-Lashizhong formations along the western margin of the Ordos Basin

Meitian dizhi yu kantan
ObjectiveThe period during the deposition of the Middle-Late Ordovician Kelimoli-Lashizhong formations witnessed a key transition of the tectonic framework along the western margin of the Ordos Basin. Investigating the lithofacies paleogeography of these
Weibin WANG, Zhanrong MA, Aiping HU, Qian ZHANG, Wenhou LI, Qiang CHEN, Yao MA, Yanbo WANG   +7 more
doaj   +1 more source

Affecting factors and application of the stable hydrogen isotopes of alkane gases

Petroleum Exploration and Development, 2019
To study the composition, affecting factors of the stable hydrogen isotopes of alkane gases and their application to identification of the natural gas origin and maturities, the chemical and isotopic compositions of 118 gas samples of Carboniferous ...
Shipeng HUANG, Shufu DUAN, Zecheng WANG, Qingchun JIANG, Hua JIANG, Wang SU, Feng Qingfu, Tongfei HUANG, Miao YUAN, Mengyi REN, Xiaoyue CHEN   +10 more
doaj   +1 more source

Similar Material Simulation Study on Dam Movement and Deformation Law of Deep Coal Seam Mining Under Dam

Energy Science &Engineering, EarlyView.
Aiming at the difficulties in accurately calculating the movement and deformation of small‐sized, deep‐buried dams with a significant height‐to‐depth ratio in deep fully mechanized caving mining, this study proposes to separate the analysis of surface and dam deformation.
Zhang Feng, Qin Hong‐yan, Hu Shou‐bin, Xu Xiao‐yu, Ti Zheng‐yi, Zheng Zhuo‐yan, Yang Shuai, Li Yang   +7 more
wiley   +1 more source

The compilation of 1∶500000 seismotectonic map of the Ordos active block and boundary zone

地震科学进展
The 1∶500000 seismotectonic map of the Ordos active block and boundary zone is a special achievement of the national key research and development project “Research on dynamic model and strong earthquake risk of Ordos active block boundary zone” .
Qiyun Lei, Wenjun Zheng, Yin Wang, Sihan Yu, Xuzhang Shen, Ming Hao   +5 more
doaj   +1 more source

Formation and distribution of large low-permeability lithologic oil regions in Huaqing, Ordos Basin

Petroleum Exploration and Development, 2012
Through in-depth analysis of sedimentary source, lake basin shape and tectonic events as well as careful study of high quality source rocks, reservoir-forming force and history in the Huaqing area, Ordos Basin, the accumulation mode of large low ...
Hua YANG, Jinhua FU, Haiqing HE, Xianyang LIU, Zhongyi ZHANG, Xiuqin DENG   +5 more
doaj   +1 more source

Sedimentary Environment and Model for Organic Matter Enrichment: Chang 7 Shale of Late Triassic Yanchang Formation, Southern Margin of Ordos Basin, China

Energies, 2022
Shale oil is an unconventional oil resource that needs to be developed and utilized urgently. However, the Chang 7 shale in the Ordos Basin, as the most typical continental source rock in China, is limited by the study of organic matter (OM) enrichment ...
Yonggang Zhao, Chunyu Zhang, Jungang Lu, Xingcheng Zhu, Lei Li, Shanghua Si   +5 more
doaj   +1 more source

Linguistic Evidence Suggests that Xiōng‐nú and Huns Spoke the Same Paleo‐Siberian Language

Transactions of the Philological Society, EarlyView.
Abstract The Xiōng‐nú were a tribal confederation who dominated Inner Asia from the third century BC to the second century AD. Xiōng‐nú descendants later constituted the ethnic core of the European Huns. It has been argued that the Xiōng‐nú spoke an Iranian, Turkic, Mongolic or Yeniseian language, but the linguistic affiliation of the Xiōng‐nú and the ...
Svenja Bonmann, Simon Fries
wiley   +1 more source