Geochemical Characteristics of Stream Sediments and Prospecting Directionin the Chabaqi Area of Da Hinggan Mts

Abstract

Abstract:

R-type cluster analysis and contrast value multiplication accumulating method were adopted to eliminate the effect of geological background during delineating the comprehensive anomalies of geochemistry. The main comprehensive anomalies are mainly located in the metamorphic rocks and the contact location with the acid intrusive bodies, and also developed along the NE and NNE faults. Three metallogenic prospective areas in the Chabaqi area were delineated based on the geological information and anomaly characteristics. Xiaodonggoutun and Pingdingshan prospective areas are the potential areas of quartz vein type and broken belt type goldcopper deposits，and the hydrothermal type (or porphyry type) deposits in Xinxingtun Deshengtun area are the main exploration direction.

Key words: comprehensive anomaly, stream sediment, prospecting direction, Chabaqi area, Da Hinggan Mts

DAI Hui-Min, DAI Ya-Jian, MA Zhen-Dong, YANG Zhong-Fang, GONG Chuan-Dong, SUN Zhong-Lin. Geochemical Characteristics of Stream Sediments and Prospecting Directionin the Chabaqi Area of Da Hinggan Mts[J]. Geoscience, 2012, 26(5): 1043-1050.

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