Frontiers | Enrichment of Platinum Group Elements in Lower …
Platinum group elements (PGEs) occur mainly in basic–ultrabasic igneous rocks and are concentrated by the differentiation and crystallization of magma. Thin polymetallic layers including Ni, Mo, V, PGEs, and rare-earth elements are widely developed in lower Cambrian black shales in southern China. The PGE contents in such layers may …Web
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Current Status of the Research on Coal Geology in China
This paper puts forward a new comprehensive exploration system for coal exploration and reviews regional coal geological exploration results in recent years, such …Web
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Coal geology in China: an overview
According to the World Energy Council (2017), China holds an estimated 114.5 Bt of coal reserve as of 2016, the third largest in the world behind the United States and Russia …Web
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(PDF) Stone coal in China: a review
CONTACT Xue Zheng zhengxue1028@126 State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and. ... 160 μ m); from China National Administration of Coal Geology ...Web
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(PDF) Coal geology in China: an overview
PDF | On Nov 22, 2017, Shifeng Dai and others published Coal geology in China: an overview | Find, read and cite all the research you need on ResearchGate.Web
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Low-rank coal maceral and mineralogy of Warukin
This study aims to determine the low-rank coal Maceral and Mineralogy of Warukin Formation, Barito Basin, South Kalimantan. Sampling was carried out using the ply by ply method at the coal mining concession of PT. Adaro Indonesia, consisting of several mining locations such as Wara 110, Wara 120, Wara 200.Web
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(PDF) Development status of coal mining in China
The average mining capacity of coal mines in China is 1.05 Mt/a, with 1181 coal mines with an average capacity less than 0.3 Mt/a, accounting for 35% of the total coal mines but contributing only ...Web
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Frontiers | Study on green filling mining technology and its
Due to the gradual depletion of shallow mineral resources at present, mines are now gradually entering the deep mining stage. To promote the safe and efficient green mining of deep coal resources and sustainable energy development, and to improve the production efficiency of paste filling mining, the research group has performed this study …Web
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Sustainable coal mine and coal land development in China
Because land is a non-renewable resource, land reclamation in mining regions has attracted significant research attention. This study divided China's 24 provinces into major and non-major coal-producing regions and employed a dynamic two-stage Slacks-Based Measure (SBM) recycling model to evaluate provincial mining production …Web
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Characteristics of coal resources in China and statistical
2.2 Coal resources mining characteristics. With the active promotion of China's carbon peaking and carbon neutralization work, China's energy supply has achieved remarkable results and production has grown steadily (Zhang et al 2022; Li 2021).As shown in Fig. 2, the raw coal production of China was 4.13 billion tons in 2021, …Web
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About This Journal | Coal Geology & Exploration | China Coal …
It is the longest established and most influential comprehensive scientific and technical journal in the field of coal geology, opening to domestic and foreign public circulation with equal emphasis on academic and practical technology in coal geology industry. Main columns. coal geology; mining geology; coalbed methane; coal associated ...Web
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Research progress and prospects of coal petrology and coal quality in China
The research on coal petrology will improve the scientificity and safety of coal mining in China, and promote the efficient processing and utilization of coal chemical industry. The unique coal chemical products (such as graphene and hydrogen energy) and rare metals in coal are important sources of future medical and military materials ...Web
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Minerals | Free Full-Text | Geochemistry, Mineralogy, and Coal
The Turpan-Hami Basin is one of the three coal-accumulating basins in Xinjiang. There is coal, natural gas, petroleum, sandstone-type uranium ore, and other ore resources in the Jurassic strata developed inside. This study aims to gain a deeper understanding of the formation process of ore resources in the Turpan-Hami Basin by …Web
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Shanxi Coal International Energy Group Co., Ltd (China)
Shanxi Coal International Energy Group Co., Ltd is a large-scale comprehensive contracting enterprise that was originally under the China National Petroleum Corporation. It is known as the "China Chemical Construction Army" and is one of the earliest companies in China engaged in chemical and petrochemical construction.Web
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Concurrent mining and reclamation for underground coal mining
Large scale underground mining of coal resources in China using longwall mining has resulted in ecological and environment problems, including surface subsidence that is considered serious due to competing interests of prime agricultural lands, food security, and regional economic development. The subsided lands must be rehabilitated …Web
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An open database on global coal and metal mine production
Our open database on global coal and metal mine production 12 covers worldwide mining activities of metal ores and coal, on an individual mine level. It comprises 1171 mines, production data for ...Web
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Characteristics and evolution of inertinite abundance and …
Coal, especially the inertinite in it, is highly sensitive to climate changes, showing an obvious response to paleoclimate conditions, in particular, to paleo-oxygen concentration (pO2). In this study, the inertinite abundance data of typical coal-forming periods in China were systematically collected and analyzed. Its characteristics and …Web
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Research progress in coal and gas co-mining modes in China
1 THE CURRENT SITUATION OF COAL AND COALBED METHANE DEVELOPMENT IN CHINA. According to recent statistics, 1 the reserves of coal resources in China are approximately 249.23 billion tons, and the reserves of coalbed methane (CBM) resources, with a depth of 2000 m, are approximately 31.46 Tm 3.The latter is equivalent …Web
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Current Status of the Research on Coal Geology in China
College of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing 100083 China. Search for more papers by this author. XIA Yucheng, ... China National Administration of Coal Geology, Beijing 100039 China. Corresponding author. E-mail: wangtong517@126 Search for more papers …Web
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An Innovative Longwall Mining Technology in …
Figure 7. Recovery ratio comparison of the two methods. ( a) Coal loss in CLTCC and ( b) coal loss in LMSG. In Tangshan coal mine, Hg is 3 m, Lc is 20 m, Hc is 8.7 m, Lp is 90 m, thus coal loss is calculated as 242.4 m 2, …Web
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Full article: Coal geology in China: an overview
According to the World Energy Council ( 2017 ), China holds an estimated 114.5 Bt of coal reserve as of 2016, the third largest in the world behind the United States and Russia …Web
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The Status Quo and Outlook of Chinese Coal Geology and …
For the present and a period of time in the future, major tasks of Chinese coal geological technology are as follows: (1) solving resources replacement problem in eastern China and geological problems of deep mining; (2) solving problem of integrated coal exploration of complex regions in energy bases of central China, and resources problems ...Web
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Mechanisms underlying the succession of plant rhizosphere
2 School of Geology and Mining Engineering, Xinjiang University, Urumqi, 830017, China; Key Laboratory of Environmental Protection Mining for Mineral Resources at Universities of Education Department of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, 830017, China. Electronic address: [email protected]
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An analysis of China's coal supply and its impact on China's …
In this situation, the status of China's future coal supply will be very important for China's future economic development. Our analysis shows that China's ultimate recoverable coal reserves equal 223.6×10 9 MT, and its production will peak between 2025 and 2030, with peak production of approximately 3.9×10 9 MT.Web
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Frontiers | Numerical Simulation Study of the Upper Aquifer …
Removing the aquifer from the model, a single coal seam model is established to simulate single mining of the #15 coal seam with a constant flow pressure drop. Taking well 165 as an example, the daily water production is less than 1/3 of the actual produced water volume. ... China Coal Geology. 29 (04), 31–34. Google Scholar.Web
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Across China: Smart technologies help reshape coal mining …
"The number of workers in a mining team has been reduced by about 50 percent, from 15 to 7, and the seven workers can produce 3,500 tonnes of raw coal in two hours," said Li Peichen.Web
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Impact of coal mining on groundwater of Luohe Formation in …
The west of China is abundant in coal resources, with a weak ecological environment. Protecting water resources is particularly important as water is the material basis for supporting regional ecological environment and economic and social development (Wang et al. 2010; Fan et al. 2019).However, in recent years, massive exploitation of …Web
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Evaluation of carbon dioxide geological sequestration potential in coal
The key parameters used in CO 2 sequestration potential evaluation in this research are coal exploration engineering data, mining geology data, experimental test data, and the literature (Table 2). The mining depth is 200–1000 m; therefore, the buried depths of unexploited deep coal seams are ≥1000 m, and producing and abandoned …Web
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Geophysical Characterization of Mining-Induced Complex …
By 2010, the coal consumption in the mainland China has increased to 48.2% of the world's total coal production (approximately 2/3 rd of the global growth) while by 2009, the mainland China had the third largest amount of recoverable coal reserves (114.5 Bts) accounting for the world's 14% .Web
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