Results 191 to 200 of about 1,794 (218)
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International Journal of Coal Geology, 2015
Abstract The content, modes of occurrence, and origin of elements and phosphorus minerals in the Jurassic coals of the Muli Coalfield, on the Tibetan Plateau, were investigated using optical microscopy, field emission-scanning electron microscopy in conjunction with energy-dispersive X-ray spectrometry, X-ray powder diffraction, X-ray fluorescence ...
Shifeng Dai +8 more
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Abstract The content, modes of occurrence, and origin of elements and phosphorus minerals in the Jurassic coals of the Muli Coalfield, on the Tibetan Plateau, were investigated using optical microscopy, field emission-scanning electron microscopy in conjunction with energy-dispersive X-ray spectrometry, X-ray powder diffraction, X-ray fluorescence ...
Shifeng Dai +8 more
openaire +1 more source
Journal of Intelligent & Fuzzy Systems, 2019
The risk assessment of roof water inrush is of great significance for sustainable development of mine and ecological environment. Taking the Jurassic coalfield in northwest China as an engineering background, we firstly selected nine indexes influencing roof water inrush based on three essential conditions with the water source, the water inrush ...
Liu, Shiliang, Li, Wenping
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The risk assessment of roof water inrush is of great significance for sustainable development of mine and ecological environment. Taking the Jurassic coalfield in northwest China as an engineering background, we firstly selected nine indexes influencing roof water inrush based on three essential conditions with the water source, the water inrush ...
Liu, Shiliang, Li, Wenping
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Arabian Journal of Geosciences, 2019
Jurassic weathered bedrock is widely distributed in the Jurassic coalfield of Northern Shaanxi Province. Its fracture network is connected with each other well, which provides a good space foundation for groundwater storage. It makes bedrock weathered zone become one of the important aquifers that endanger coal mine safe production.
Zhi Yang +3 more
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Jurassic weathered bedrock is widely distributed in the Jurassic coalfield of Northern Shaanxi Province. Its fracture network is connected with each other well, which provides a good space foundation for groundwater storage. It makes bedrock weathered zone become one of the important aquifers that endanger coal mine safe production.
Zhi Yang +3 more
openaire +1 more source
Geological Journal, 2017
Xishan coalfield, Shanxi, is located in the northwest of the Qinshui Basin, central North China. It is notable for its varieties of coal rank ranging from high volatile bituminous coals to anthracite as well as having abundant coalbed methane resources.
B. L. Sun +4 more
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Xishan coalfield, Shanxi, is located in the northwest of the Qinshui Basin, central North China. It is notable for its varieties of coal rank ranging from high volatile bituminous coals to anthracite as well as having abundant coalbed methane resources.
B. L. Sun +4 more
openaire +2 more sources
International Journal of Coal Geology, 2017
Abstract A large amount of thin-film dawsonite has developed in coal cleats and also in fractures within the roof sandstone in Jurassic CO 2 -rich coal measure strata of the Yaojie coalfield, Minhe Basin, China. The CO 2 in these strata has been in a supercritical state since natural emplacement.
Xiao-Ran Ming +8 more
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Abstract A large amount of thin-film dawsonite has developed in coal cleats and also in fractures within the roof sandstone in Jurassic CO 2 -rich coal measure strata of the Yaojie coalfield, Minhe Basin, China. The CO 2 in these strata has been in a supercritical state since natural emplacement.
Xiao-Ran Ming +8 more
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2009 2nd International Congress on Image and Signal Processing, 2009
Peiyi Fu +6 more
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Peiyi Fu +6 more
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The driving mechanisms of the carbon cycle perturbations in the late Pliensbachian (Early Jurassic)
Scientific Reports, 2019Jean Guex +2 more
exaly
Soft-tissue evidence for homeothermy and crypsis in a Jurassic ichthyosaur
Nature, 2018Johan Lindgren +2 more
exaly