Results 21 to 30 of about 267 (157)
REE characteristics of the coal in the Erlian Basin, Inner Mongolia, China, and its economic value
China Geology, 2021 The rare earth elements (REE) content of the coal in the Erlian Basin was determined by inductively coupled plasma mass spectrometry (ICP-MS), and it turns out that the REE content from different geological age shows a significant difference: The REE ...
Shao-qing Huang +4 more
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Iraqi Geological Journal, 2021 The Crowsnest coalfield is a separated structural coalfield at the East Kootenay basin within southeast British Columbia. Selected Jurassic-Cretaceous two coals seam S-10 and S-C of the Mist-Mountain formation were investigated from the points of coal ...
Nader A.A. Edress
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Evaluation of carbonification of coals using a portable Raman spectrometer
Journal of Raman Spectroscopy, Volume 54, Issue 11, Page 1220-1232, November 2023., 2023 This study illustrates that it is possible to discriminate among the coals of different degrees of maturation of the carbonaceous matter and other types of carbonaceous matter using the data acquired with a portable Raman spectrometer using spectroscopic parameters: D and G band widths and wavenumber positions.
Adam Culka +2 more
wiley +1 more source
Meikuang Anquan, 2020 In order to find out the hydraulic connection between Baotashan sandstone aquifer from the floor of coal seam and other aquifers in the Jurassic coalfield, the underground dewatering test is adopted. The Baotashan sandstone aquifer is drained with large
ZHAO Baofeng, LYU Yuguang
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Geological Journal, Volume 58, Issue 10, Page 3948-3963, October 2023., 2023 The Pliensbachian Stage mainly developed as a fluvial‐lacustrine depositional system and an evolution history from braided fluvial to meandering fluvial, then to lacustrine, and finally back to meandering fluvial was reconstructed. We suggest that climate change is the major controlling factor for depositional evolution during the Pliensbachian.
Kai Zhou +6 more
wiley +1 more source
Energy Science &Engineering, Volume 11, Issue 7, Page 2238-2252, July 2023., 2023 A study on the stability of weakly cemented layered floor. Abstract Given the deformation and instability of the layered floor of weakly cemented soft rock roadway, taking the mining roadway of Meihuajing Mine as the engineering background, the deformation and instability mechanism of the floor and the control measures of the surrounding rock under ...
Ye Zhu +4 more
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Research on the evolution and height prediction of WCFZ in shallow close coal seams mining
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 2023 Based on the mining conditions of shallow close coal seams in the Jurassic coalfield of northern Shaanxi, in order to explore the evolution and development height prediction of water-conducting fracture zone (WCFZ), combining with measured statistical ...
Jian Cao +3 more
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Meikuang Anquan, 2021 Taking 3200 working face of Tianzhu Coal Mine as an example, by analyzing the geological and hydrogeological conditions of the mine, the main water filling source and water filling channel of the mining face are determined.
HUANG Hao, FANG Gang, LIANG Xiangyang, LIU Yang
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Geology Today, Volume 39, Issue 3, Page 90-98, May/June 2023., 2023 The Arden Sandstone Formation of central and western England is a thin but conspicuous arenaceous unit within the Late Triassic Mercia Mudstone Group. Sedimentological and palaeontological data point to lacustrine depositional conditions, in contrast to the red desert mudstones above and below which were deposited as continental dryland desert ...
Stuart D. Burley +2 more
wiley +1 more source
Meikuang Anquan, 2023 Taking the fire-threatened mines in the shallow buried coal seam of the Jurassic coalfield in northern Shaanxi Province as the research object, the high-resolution UAV visible light and thermal infrared dual-light low-altitude remote sensing, handheld ...
WANG Haijun, WU Yan, MA Liang, CHEN Chongfeng, SUN Baoping, WANG Xiangye, WU Minjie, LIU Shande
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