Geological and Geochemical Characteristics of Granite in the Daolangshan Region, Inner Mongolia

Abstract

Abstract:

The Daolangshan region is located in the northern margin of North China PlateThe outcropped rockbody are mainly Yanshanian biotite granite.Geochemical data show characteristics with rich aluminum,rich silicon and poor calcium contents.The rock Rittman index is an average of 1.80 and alkalinity index is an averaged of 2.6，belongs to calc-alkaline granite. The rockbody has a high differentiation index value, with a high degree of crystallinity evolution.The total REE content of granite body is low,with an obvious negative Eu anomaly.It is concluded that the rock body is formed from partially melting of the high maturity shale rocks in the low temperature

Key words: granite, geological characteristic, geochemistry, Daolangshan, Inner Mongolia

CLC Number:

P588.12

GUO Min, LI Xiang, HU Xiang-Zhao, Zou Hai-Yang. Geological and Geochemical Characteristics of Granite in the Daolangshan Region, Inner Mongolia[J]. Geoscience, 2010, 24(4): 762-766.

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