THE PRESENT SITUATION AND DEVELOPING TREND OF THE STUDY ON MICAO-FINE DISSEMINATED GOLD DEPOSITS IN CHINA AND ABROAD
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摘要: 微细浸染型金矿床,亦称为"卡林"型金矿床,是60年代初期发现的一种热液金矿新类型,广泛分布于美国西部、我国西南部及秦岭地区,是目前国内外重要的金矿床类型之一.本文从其概念、形成地质背景、层控性及矿源层、矿物组合及金的赋存状态、成矿模式及热液成矿机制等方面,概述了当前对该类金矿床研究和认识现状,并就其发展趋势提出了自己的看法.Abstract: The micro-fine disseminated gold deposit, also called Carlin-type, is a new kind of gold deposit found in early 1960s, and widely distributed in the western United States, southwestern China, as well as Qinling regions of China. It has become one of the most important gold deposit types both in China ahd abroad.This paper gives a general description on the present situation of the study and understanding on this kind of deposit from the aspects of its concept, oreforming geological background, strata-bound feature and source stratum, mineral assemblage and occurrence of gold, genesis and ore-forming model, as well as mechanisms of hydrothermal mineralization. Our opinion on ths developing trend is also put forw ard.
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