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J4 ›› 2010, Vol. 18 ›› Issue (5): 47-51.

• article • Previous Articles     Next Articles

Linhai Granite Geochemical Characteristics and Relationship to Mineralization in the Wuyun Basin

YIN Xijun   

  1. No.1 Gold Geological Party of CAPF,Mudanjiang 157021,Heilongjiang,China
  • Received:2010-09-14 Revised:2010-09-25 Online:2010-10-28 Published:2012-05-23

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Abstract:

Field observations suggest that the granite batholith is a botholith composed that is sourced magmatism during the Indochina.the type of granite is the monzogranite.Granite batholith has a SiO2 content of 68.17 to 76.23%,Al2O3 content of 12.41to14.41%,with Na2O+K2O=9.24 to 10.98% and K2O/Na2O=1.65 to 2.14,A/CNK from 0.923 to 0.965.the granite batholith has a lower total REE concentration, ΣREE content of 55.26 to 88.02×10-6， LREE/HREE from 2.71 to 10.27 ;δEu from 0.28 to 0.32;δCe content 0.81 to 0.91;（La/Yb）N from 1.79 to 11.20.chondrite-normalized REE patterns show a significant differentiation and has a obvious fractionation character of LREE and HREE primitive mantle-normalized trace element spidergrams were W-type curves.The Wuyun basin monzogranite is high-K,inferior-alkaline Ⅰ-type gramite,with lower concentration of aluminum.Its formed of postorogenic tension tectonic setting and depth of the crust and location in the intraplate.

Key words: Geochemistry, Tectonic setting, Granite, Wuyun basin

CLC Number: 

  • P618.51

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