冀东“长城式”金矿地质地球化学特征及成因  

Geological Characteristics and Genesis of the "Great Wall-Type" Gold Deposits,East Hebei

作　　者：董建乐[1] 崔彬[1] 王科强[2] 刘荫春[2] 武玉海[2] 

机构地区：[1]中国地质大学,北京100083 [2]武警黄金地质研究所,河北廊坊065000

出　　处：《地质论评》2002年第S1期230-235,共6页Geological Review

摘　　要：通过矿床地质、地球化学特征和成矿作用研究分析,认为所谓的"长城式"金矿不是一种新的成因类型,而仅是一种新的矿化类型。它是一种产于中、新元古界碳酸盐岩地层中,与燕山期酸性潜火山(浅成—超浅成)岩体有成因联系的隐爆角砾岩型金矿,成矿时代为中侏罗世晚期(164～145 Ma)。建立了"长城式"金矿的成矿模式。Based on a deep study and analysis of the geological and geochemistry characteristics and mineralizing process, the authors suggest that the 'Great Wall Type' is not a new genetic type, but a new mineralization type. Those gold deposits belong to the cryptoexplosion breccia type deposits occurring in Mesoproterozoic—Neoproterozoic carbonate layers, and are genetically related to Yanshanian acid subvolcanic ( hypabyssal-superhypabyssal intrusive) rock bodies. They were mineralized in the late Middle Jurassic (164～145 Ma). The mineralization mechanism is given in the paper.

关 键 词：冀东 “长城式”金矿 地质特征 成因 

分 类 号：P618.51[天文地球—矿床学]