Gallium distribution in coal of late permian coal fields, southwestern China, and its geochemical characteristics in the oxidized zone of coal seams

1981 ◽  
Vol 1 (3) ◽  
pp. 235-260 ◽  
Author(s):  
Yiping Zhou ◽  
Youliang Ren
Keyword(s):  
Geochemical Characteristics ◽  
Southwestern China ◽  
Late Permian ◽  
Coal Seams ◽  
Permian Coal ◽  
Coal Fields

Revisiting the late Permian coal from the Huayingshan, Sichuan, southwestern China: Enrichment and occurrence modes of minerals and trace elements

2014 ◽  
Vol 122 ◽  
pp. 110-128 ◽  
Author(s):  
Shifeng Dai ◽  
Yangbing Luo ◽  
Vladimir V. Seredin ◽  
Colin R. Ward ◽  
James C. Hower ◽  
...  
Keyword(s):  
Trace Elements ◽  
Southwestern China ◽  
Late Permian ◽  
Permian Coal ◽  
Minerals And Trace Elements

Sedimentology and sequence stratigraphy of the Lopingian (Late Permian) coal measures in southwestern China

2011 ◽  
Vol 85 (1) ◽  
pp. 168-183 ◽  
Author(s):  
Hao Wang ◽  
Longyi Shao ◽  
Liming Hao ◽  
Pengfei Zhang ◽  
Ian J. Glasspool ◽  
...  
Keyword(s):  
Sequence Stratigraphy ◽  
Southwestern China ◽  
Late Permian ◽  
Permian Coal ◽  
Coal Measures

scholarly journals Comparison of the Geochemical Characteristics of “Barkinite” and other Macerals from the Dahe Mine, South China

2005 ◽  
Vol 23 (6) ◽  
pp. 475-494 ◽  
Author(s):  
Yuzhuang Sun ◽  
B. Horsfield
Keyword(s):  
South China ◽  
Open System ◽  
Aromatic Compounds ◽  
Geochemical Characteristics ◽  
Late Permian ◽  
Pyrolysis Method ◽  
Permian Coal

Late Permian coal samples from the Dale Mine, South China, were separated into macerai groups in order to compare the characteristics of “barkinite” with vitrinite, inertinite, and sporinite. The maceral groups were extracted and analysed by GC-MS. The extract residues (kerogen) were analysed by open-system pyrolysis. The results indicate that “barkinite” has geochemical characteristics different from those of vitrinite, inertinite, and sporinite. The significant differences lie in the compound contents obtained by open-system pyrolysis method. The contents of saturated and aromatic compounds from the “barkinite” sample are also different from the vitrinite, inertinite, and sporinite samples, but these differences are observed only in their compound quantities.

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