Results 11 to 20 of about 199 (123)

Hydrogeochemical processes of groundwater system and its mining-motivated effect in mining areas of Western China [PDF]

Meitan xuebao
The exploitation of coal resources will destroy the aquifer structure, disturb the groundwater system and produce a new water cycle model. As the focus of coal supply and production, the western mining area is short of water resources and fragile in ...
Aoshuang MEI, Yifan ZENG, Qiang WU, Zhichao LIU, Yanping MIAO, Sitong WANG, Yashuai CUI, Huaming WEI, Shuaifeng REN, Lei YANG   +9 more
doaj   +3 more sources

Genesis of green sandstone/mudstone from Middle Jurassic Zhiluo Formation in the Dongsheng Uranium Orefield, Ordos Basin and its enlightenment for uranium mineralization

China Geology, 2020
: The middle Jurassic Zhiluo Formation in the Dongsheng is comprised of a big set of green sandstone/mudstone with most of uranium orebodies occurring in close proximity to its footwall. By synthesizing field observations, region analysis, data collected
Ruo-shi Jin, Xiao-xi Feng, Xue-ming Teng, Feng-jun Nie, Hai-yang Cao, Hui-qun Hou, Hong-xu Liu, Pei-sen Miao, Hua-lei Zhao, Lu-lu Chen, Qiang Zhu, Xiao-xi Zhou   +11 more
doaj   +2 more sources

Study on Layered-Backfill-Based Water Protection Technology of Thick Coal Seam in the Ecologically Fragile Mining Area in Western China

Geofluids, 2022
The mining areas in Western China are characterized by water shortage and ecological fragility, and the coal resources in these areas are extracted in a large-scale and highly intensive manner, which is highly likely to induce ecological problems, such ...
Lei Zhu, Tianqi Song, Wenzhe Gu, Kai Xu, Zhicheng Liu, Fengqi Qiu, Xinfu Zhang   +6 more
doaj   +2 more sources

Sedimentary Filling Evolution under Paleoclimate Transition—A Case Study from the Middle Jurassic Zhiluo Formation, Ordos Basin

Minerals, 2023
Under a specific tectonic background, the change in paleoclimate can show different facies associations and depositional architecture. The Jurassic China continent was an important region for transforming the Paleotethys tectonic domain to the circum-Pacific tectonic domain, and its paleoclimate information was entirely preserved in the continental ...
Cui, Liwei, Peng, Nan, Liu, Yongqing, Qiao, Dawei, Liu, Yanxue   +4 more
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Petrography and geochemistry of sandstones from the middle Jurassic Zhiluo Formation in the northern margin, Ordos Basin: implications for provenance, tectonic setting, paleoweathering, paleoclimate, and sandstone-type uranium mineralization

Frontiers in Earth Science
This study aims to analyze the provenance of Middle Jurassic Zhiluo Formation sandstones exposed by drilling in the northern Ordos Basin (Bayingqinggeli area) and reconstruct the tectonic setting, paleoclimate, and paleoweathering conditions of their ...
Xiaoneng Luo, Xiaoneng Luo, Suping Peng, Ziying Li, Feng He, Xide Li, Zilong Zhang   +6 more
doaj   +2 more sources

Investigation of physicochemical and triaxial compressive properties of conglomerate in acidic leachate [PDF]

Meitan kexue jishu
The seepage effect of leaching solution in the process of in-situ leaching mining may lead to the deterioration of the mechanical properties of the aquifuge, and affect the safety of coal uranium co-mining.
Peng YANG, Xinzhu HUA, Xiao LIU, Yan HAN, Chen LI   +4 more
doaj   +3 more sources

Research and application of pressure relief technology for fracturing thick hard roof in super-high mining face [PDF]

Meitan xuebao
Aiming at the problems of super-large mining space, strong ore pressure and ultra-high coal wall stability control faced by full-mechanized mining face with ultra-large mining height and thick hard roof, this paper takes the 122104 working face of ...
Yajun LEI, Yanjun FENG, Hongpu KANG, Futang ZHAO, Xiaoguang SHANG, Rui WANG, Peng WANG, Zhen ZHANG, Jianchao REN, Kaikai ZHAO, Yangfa ZHENG, Xiaogang LIU   +11 more
doaj   +3 more sources

Hydrochemical characteristics and formation mechanism of groundwater in Yushenfu Mining Area

Meitan kexue jishu, 2023
The hydrochemical characteristics of groundwater in coal mining areas and its formation are of great significance to groundwater protection in mining areas and the identification of mine water inrush water sources. This paper takes the Quaternary aquifer,
FAN Limin, MA Wanchao, CHANG Bofeng, SUN Kui, MIAO Yanping, LU Bo, TIAN Shuibao, YANG Lei   +7 more
doaj   +1 more source

Pore Structure Characteristics and Main Control Factors of Sandstone in the Jurassic Zhiluo Formation in the Northern Ordos Basin

Minerals, 2023
The Jurassic Yan’an Formation in the Ordos Basin is one of the main coal seams mined in the basin, and the enrichment of water bodies in the upper part of this coal seam is closely related to the sand bodies in the Zhiluo Formation. This study is based on the use of core observations in the northern part of the Ordos Basin for studying the pore ...
Xiaofeng Liu, Xiaodan Guo, Zenglin Hong, Xuping Xue, Shifeng Li   +4 more
openaire   +1 more source

Study on Hydrogeochemical Characteristics of Deeply Buried Mining Area in Inner Mongolia-Shaanxi Province, China

Lithosphere, 2022
This paper adopted organic components, environmental isotopes, and organic components to study water quality comprehensively, in order to distinguish the differences of hydrogeochemical characteristics between coal measure strata and aquifers on the roof
Yang Liu, Jian Yang, Qiang Ma, Xuesong Ding, Ang Li, Xiangyang Liang, Yuanmou Li, Yonggen Zhou, Shuai Gao, Weidong Wang   +9 more
doaj   +1 more source