... of geo-stress test data samples are obtained using this technique. The Qinshui coal field is one of the five major coal production bases in China, situated in its central and southern Shanxi Province. The primary mining areas of the Qinshui coal field are concentrated in Yangquan, Lu'an, Jincheng...

...Suzhen Shi; Jian Feng; Jiebin Bai; Xin Zhang; Weixu Gao; Haoying Nan; Guifei Shi Abstract Accurately predicting the 3D in situ stress field is critical in coal mining. We have proposed a workflow that is based on 3D seismic attributes to predict the in situ stress field of a coal mine located...

... that SUTEM is an effective approach to detect a water-bearing goaf close to or above the surveying line, and which can accurately position the water-bearing area laterally. We conducted a field experiment of the SUTEM at No. 1 coal mine of Yangquan Coal Industry (Group) Company ( Fig. 8...

...Fig. 1. (A) Location maps of NanXiang basin in Henan Province, Yitong basin in Jilin Province, Shouyang-Yangquan (SY) coal field in Shanxi Province, and Huainan coal field in Anhui Province, China. (B) NanXiang basin enlarged to show the Biyang depression and Nanyang depression. (C...

... copper porphyry deposit Nasser Madani, Mohammad Maleki, and Fatemeh Sepidbar article 125794 Geochemical anomaly definition using multifractal modeling, validated by geological field observations: Siah Jangal area, SE Iran Zahra Mokhtari and Behnam Sadeghi article 125774 Application of modified wavelet...

..., and then a “shale gas revolution” was set off in the energy field around the world [ 1 – 7 ]. In recent years, China has made significant breakthroughs in shale gas exploration and development, becoming the first country outside North America that achieved large-scale commercial development, and has achieved scale...

... 5000 Shanxi Taiyuan Bayi Filling Factory 10,000 Yangquan Coal Group Co. Ltd 8000 Western-Inner Mongolia New Material Co.Ltd 30,000 Equipment imported in 2002 Inner Mongolia Sanbao Zhunge’er Kaolin Co. Ltd 20,000 Two calciners imported Shandong Xinwen Mine Bureau Wennan Kaolin...

... and fractal dimension of coals, many effective measurements have been successfully introduced to study the characteristics of pores in coal reservoirs, such as scanning electron microscopy (SEM) ( Zou et al., 2020 ), field-emission SEM ( Pan et al., 2016 ; Yi et al., 2017 ), X-ray microcomputed tomography...

... License (CC BY 4.0). State Key Laboratory of Coal Resources and Safe Mining 10.13039/501100011363 SKLCRSM19ZZ02 State Key Laboratory of Coal Resources and Safe Mining-Beijing University Outstanding Young Scientists Program Project BJJWZYJH01201911413037 Fundamental Research Funds...

...Fan Zhang; Yangquan Jiao; Liqun Wu; Hui Rong; Jinhua Li; Dun Wan ABSTRACT Carbonaceous debris (CD) within uranium-bearing strata has been studied in the Daying uranium deposit of the northern Ordos Basin, northern China. The influence of radiogenic heat from uranium on organic matter maturation...

...Jiao Yangquan; Yan Jiaxin; Li Sitian; Yang Ruiqi; Lang Fengjiang; Yang Shengke Abstract Reservoirs of the Karamay Formation occur as oil sandstones in outcrop in the Karamay oil field. Two types of high-quality reservoirs are present in this field: low-sinuosity channel sandstones and distributary...

... of coal fires. The authors wish to thank Chaoqun Yang (China University of Geosciences, Wuhan) for providing apatite fission-track analyses and Xiaoduan Wang (Chengdu University of Technology) for helping during field-work. Special thanks go to the 216 Team of the Xinjiang Nuclear Bureau for aiding...

... of black smoker chimneys by pyrite geochemistry: A case study of the Tongguan hydrothermal field, South Mid-Atlantic Ridge Sai Wang, Chuanshun Li, Bing Li, Yuan Dang, and Xuefa Shi article 104410 Genesis of the Erdaohe skarn Pb-Zn-Ag deposit in the Great Hinggan Range, NE China: Evidence from geology...

... to the engineering practices in an underground coal mine in Shanxi Province. The practicability and effectiveness of the proposed method in the fine detection of the properties, forms, and scale of water-logged goaf roadways were successfully tested in the field. The research results indicated that the roadway...

..., and Jian Wang article 104639 Chromite geochemistry of the Jinchuan Ni-Cu sulfide-bearing ultramafic intrusion (NW China) and its petrogenetic implications Jian Kang, Lie-Meng Chen, Song-Yue Yu, Wen-Qin Zheng, and Qi-Xing Ai article 104644 Nodular sillimanite rocks as field indicators to metamorphosed...

... and west because of differences in the paleogeothermal field during the Jurassic to Cretaceous Yanshanian orogeny. Figure 7 The no. 15 coal rank map and the area of the Mesozoic positive magnetic anomaly area (shaded) in the Qinshui basin (modified from Wang and Zhao, 1997 ; Liu et al., 1998...

...-bearing rocks of eastern Kentucky . Geological Society of America Coal Geology Division Field Trip. Kentucky Geological Survey , Series XI , 49 . Bohor , B. F. , & Triplehorn , D. M. ( 1993 ). Tonsteins: altered volcanic-ash layers in coal-bearing sequences . Geological Society...

... detection technology. The results are consistent with the field measured results. The correctness of the model is verified. Finally, the rationality of the model is verified by comparing with the previous classical models. The research results are applied to the design of the waterproof coal pillar...

...Hui Rong; Yangquan Jiao; Liqun Wu; Rui Wang; Yuan Gu; Xiaomei Wang Abstract The Ordovician carbonate platform at the Yijianfang outcrop of the Bachu uplift region in the western Tarim Basin contains four types of genetic facies associations developed in the calciclastic slope-fan depositional...