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中国地质异常
引用本文:赵鹏大,王京贵.中国地质异常[J].地球科学,1995,20(2):117-127.
作者姓名:赵鹏大  王京贵
作者单位:中国地质大学,华东地质学院地质系
摘    要:地质异常是在成分结构,构造或成因序次上与周围环境有着明显差异的地质体或地质体组合,依据地质异常分布范围及其圈定标志,可将其分为5级:全球性地质异常、区域性地质异常,局部性地质异常、小型地质异常及显微地质异常。地质异常的圈定方法包括地壳升降系数(G值)法、地质复杂系数(C值)法、熵(H值)法、地质相似系数(S值)法及地质关联度(R值)法,作者又从全球角度出发,结合中国的地质特点,进一步阐述了中国地质

关 键 词:地质异常  大地构造体系  锡矿床  成矿

GEOLOGIC ANOMALY OF CHINA
Zhao Pengda.GEOLOGIC ANOMALY OF CHINA[J].Earth Science-Journal of China University of Geosciences,1995,20(2):117-127.
Authors:Zhao Pengda
Abstract:The geologic anomaly is a geologic body or geologic body combination different from its adjacent settings in composition, texture, structure and genetic sequence. According to the distribution area and delimitation markers, the geologic anomaly can be classified as global geologic anomaly, regional geologic anomaly, local geologic anomaly, small-scale geologic anomaly and micro-geologic anomaly.The methods for delimitation of geologic anomaly include crustal elevation-subsidence coefficient (G value) determination, geologic complicated coefficient (C value) determination,entropy (H value) determination,geologic similarity coefficient (S value) determination and geologic correlation (R value) coefficient determination.As the effect of motions of Eurasian, Pacific and Indian plates, the Chinese geologic anomalies, most being Paleozoic in age and including 11 regional ones and 32 main local ones, are distributed in strip on the margin or the outer and inner folded zone in the east and west limbs of the block symmetricarc, controlling the distribution of various minerals in China. The geologic anomaly theory is of important significance in searching for the larpe, super-larpe and very large ore deposits.China.
Keywords:geologic anomaly  delimitation of geologic anomaly  block symmetric arc  tectonic system  
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