Geochemistry of trace and rare elements in No.2 coalseam parting in Malan coal mine and its geological implication
Abstract：XRD,ICP-MS and ICP-OES were applied to investigate geochemical characteristics of minerals,trace elements,rare earth elements(REEs) and major elements in different grain size partings of No.2 coal seam in Malan Mining area,Xishan coalfield.Based on the correlative analysis between elements and minerals,the geological genesis of concentration of hazardous trace elements was investigated.The results indicate that the minerals of the parting are mainly dominated by quartz with coarse grain size,high-crystallinity kaolinite,pyrite with fine grained size and anatase,and the mineral compositionis vary with grains.The provenance of parting is mainly the granite from the north of North China coal-accumulating basin in the Permian period,and it is influenced by the volcanic activities from the north margin of North China plate during the late Paleozoic.The hazardous trace elements,including Cr,Ni and Cu,are mainly controlled by quartz and kaolinite.The elements of Zn and U are significantly correlated with pyrite and anatase,respectively.
Keywords：partingtrace elementsrare earth elements(REEs)geochemistry characteristicsgeological genesis
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 1709-1716 )