Trace element geochemistry of altered volcanic ash layers (tonsteins) in late Permian coal-bearing formations of eastern Yunnan and western Guizhou Provinces, China

International Journal of Coal Geology

Volumn 44, Issue 3-4, 2000, Pages 305-324

  Zhou, Yiping ^a   Bohor, Bruce F ^b   Ren, Youliang ^c  

^a Kunming Institute of Coal Sciences   (China)

^b U S GEOLOGICAL SURVEY   (United States)

^c Department of Geology and Geological Engineering   (United States)

Author keywords

Neutron activation analysis; SW China; Tonstein; Trace elements; Volcanic ash

Indexed keywords

TONSTEINS; VOLCANIC ASH;

CHROMIUM; COAL RESEARCH; COBALT; EUROPIUM; EXPLORATORY GEOCHEMISTRY; NEUTRON ACTIVATION ANALYSIS; NICKEL; SCANDIUM; THORIUM; TITANIUM; URANIUM; VANADIUM;

COAL DEPOSITS;

COAL; GEOCHEMISTRY; PERMIAN; PYROCLASTIC DEPOSIT; TRACE ELEMENT; VOLCANIC ASH;

CHINA;

EID: 0034283573     PISSN: 01665162     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0166-5162(00)00017-3     Document Type: Article

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