Results 181 to 190 of about 1,794 (218)
Some of the next articles are maybe not open access.
Study on Coal’s Green Mining Technology Roadmap of Jurassic Coalfield in Northern Shaanxi
Advanced Materials Research, 2014Jurassic coalfield in northern Shaanxi is a typical ecologically fragile area. In recent years, with the rapid development of coal mining industry in this area, the environmental problems were caused by coal mining have become so serious that threat seriously to the sustainable development of northern Shaanxi. In this paper, the research team use multi-
Wei Zhang, Jin Suo Zhang, Jian Xu
openaire +1 more source
International Journal of Coal Geology, 2015
Abstract The petrological, geochemical, and mineralogical compositions of 10 coal seams (Early Jurassic) from an exploratory borehole (Hole ZKJ502) in the Jieliangzi mining area of the Yining Coalfield, Xinjiang Uygur Autonomous Region, China, were investigated, using optical microscopy and field emission-scanning electron microscopy in conjunction ...
Yaofa Jiang +6 more
openaire +1 more source
Abstract The petrological, geochemical, and mineralogical compositions of 10 coal seams (Early Jurassic) from an exploratory borehole (Hole ZKJ502) in the Jieliangzi mining area of the Yining Coalfield, Xinjiang Uygur Autonomous Region, China, were investigated, using optical microscopy and field emission-scanning electron microscopy in conjunction ...
Yaofa Jiang +6 more
openaire +1 more source
Arabian Journal of Geosciences, 2020
The Yuheng mining area of the Jurassic coalfield in northern Shaanxi Province is one of the most important coal-producing regions in China. The present study examines the mechanism of a water-rich coal seam in this area, namely, the No. 2 water-rich coal seam of the Balasu coal mine, by using the groundwater aquifers.
Gang Fang +3 more
openaire +1 more source
The Yuheng mining area of the Jurassic coalfield in northern Shaanxi Province is one of the most important coal-producing regions in China. The present study examines the mechanism of a water-rich coal seam in this area, namely, the No. 2 water-rich coal seam of the Balasu coal mine, by using the groundwater aquifers.
Gang Fang +3 more
openaire +1 more source
International Journal of Coal Geology, 2018
Abstract This paper describes the occurrence of significant authigenic analcime (NaAlSi2O6·H2O) in the middle Jurassic coal from the northeastern Ordos Basin and discusses its origin. Twelve coal samples from borehole ZK31-19 in the Dongsheng Coalfield were collected and analyzed.
Xiaomei Wang +6 more
openaire +1 more source
Abstract This paper describes the occurrence of significant authigenic analcime (NaAlSi2O6·H2O) in the middle Jurassic coal from the northeastern Ordos Basin and discusses its origin. Twelve coal samples from borehole ZK31-19 in the Dongsheng Coalfield were collected and analyzed.
Xiaomei Wang +6 more
openaire +1 more source
Journal of Geochemical Exploration, 2018
Abstract Gallium (Ga) is known as the backbone of the electronics industry, but its independent mineralization is rarely found in nature. The discovery of large Ga-bearing coal deposits suggests that the coal-bearing series can be used as the main source for the future development and utilization of Ga, and the organic matter of coal may play an ...
Pei Shao +7 more
openaire +1 more source
Abstract Gallium (Ga) is known as the backbone of the electronics industry, but its independent mineralization is rarely found in nature. The discovery of large Ga-bearing coal deposits suggests that the coal-bearing series can be used as the main source for the future development and utilization of Ga, and the organic matter of coal may play an ...
Pei Shao +7 more
openaire +1 more source
AAPG Bulletin, 2014
Detailed stratigraphic and paleogeographic analyses of data from 72 boreholes for the Middle Jurassic intermontane fluvial-lacustrine coal-bearing sequences were conducted in the Yuqia coalfield of the northern Qaidam Basin, northwestern China. Three third-order sequences lasting in total ca.
Meng Li +5 more
openaire +2 more sources
Detailed stratigraphic and paleogeographic analyses of data from 72 boreholes for the Middle Jurassic intermontane fluvial-lacustrine coal-bearing sequences were conducted in the Yuqia coalfield of the northern Qaidam Basin, northwestern China. Three third-order sequences lasting in total ca.
Meng Li +5 more
openaire +2 more sources
Science China Earth Sciences, 2018
The Jurassic is an important period of global coal formation, including the development of several large coalfields in central Asia and northern China. Individual seams within these peatlands represent sustained periods of terrestrial carbon accumulation and a key environmental indicator attributed to this record is the rate of carbon accumulation ...
Yanan Li +5 more
openaire +1 more source
The Jurassic is an important period of global coal formation, including the development of several large coalfields in central Asia and northern China. Individual seams within these peatlands represent sustained periods of terrestrial carbon accumulation and a key environmental indicator attributed to this record is the rate of carbon accumulation ...
Yanan Li +5 more
openaire +1 more source
World Journal of Engineering, 2015
This paper describes the organic geochemical characteristics and their roles on barium enrichment in the No. 2 Coal from Huanglong Jurassic Coalfield, China. A total of 18 bench samples were taken from Huangling Mine 2. The average content of barium (3701 mg/kg) was about 23 times higher than that of common world coals.
Shu Yi +4 more
openaire +1 more source
This paper describes the organic geochemical characteristics and their roles on barium enrichment in the No. 2 Coal from Huanglong Jurassic Coalfield, China. A total of 18 bench samples were taken from Huangling Mine 2. The average content of barium (3701 mg/kg) was about 23 times higher than that of common world coals.
Shu Yi +4 more
openaire +1 more source
Review of Palaeobotany and Palynology, 2001
The results of a palynological analysis of the sedimentary sequence of Borehole RCH-151, Chuperbhita Coalfield, Rajmahal Basin, Bihar are presented here. The borehole penetrated the Rajmahal Formation (comprising two traps sandwiching an intertrappean bed), the thinly represented Dubrajpur Formation and in its lower part, the Coal Measures.
openaire +2 more sources
The results of a palynological analysis of the sedimentary sequence of Borehole RCH-151, Chuperbhita Coalfield, Rajmahal Basin, Bihar are presented here. The borehole penetrated the Rajmahal Formation (comprising two traps sandwiching an intertrappean bed), the thinly represented Dubrajpur Formation and in its lower part, the Coal Measures.
openaire +2 more sources
International Journal of Coal Geology, 2012
Abstract The Junggar coal basin, with enormous coal reserves, is one of the largest coal basins in Xinjiang Province, Northwest China. According to the exploration data, there is one to dozens of workable coal seams developed in the Xishanyao Formation of Middle Jurassic across the whole basin, with the maximum accumulated coal thickness of over 100 ...
Jing Li +6 more
openaire +1 more source
Abstract The Junggar coal basin, with enormous coal reserves, is one of the largest coal basins in Xinjiang Province, Northwest China. According to the exploration data, there is one to dozens of workable coal seams developed in the Xishanyao Formation of Middle Jurassic across the whole basin, with the maximum accumulated coal thickness of over 100 ...
Jing Li +6 more
openaire +1 more source

