Title: Trace Elements Geochemistry Feature and Tectonic Significance of the Beilekuduke Aluminous A-type Granite in East Junggar
Abstract: The geochemistry feature of rock in Beilekuduke granite in Kalamaili region of East Junggar,Xinjiang is discussed.The result shows that the biotite granites are typical aluminum A-type granites because of the enrichment of large-ion lithophile elements(Rb,K,Th,etc),relative enrichment of high field strength elements(Zr,Hf),relative loss of Ba,Sr,Nb,Eu,a high level of rare earth elements(REE),Eu negative anomaly extremely and flat V shaped of REE pattern.The granite is belong to A2-type originally and formed in the post-collision expansion environment,and may be derived from the young crust constructed by the oceanic crust and island arcs.Trace elements in granite tectonic discriminate diagram shows that it is a post-collisional granite,and indicates that the end of Late Carboniferous orogenesis in Kalamaili region and the start of plate tectonic evolution.The content of Sn,which is generally large(15.50×10-6) in the granite,is very important for the study of tin mineral deposit and source.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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Cited By Count: 2
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