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陕川丁家林-太阳坪金矿地质特征与成矿条件
引用本文:刘新会,张复新,吕喜旺,张志毅.陕川丁家林-太阳坪金矿地质特征与成矿条件[J].黄金地质,2002,8(4):24-28.
作者姓名:刘新会  张复新  吕喜旺  张志毅
作者单位:1. 武警黄金第五支队,陕西,长安,710000
2. 西北大学地质学系,陕西,西安,710069
基金项目:陕西省自然科学基金 ( 2 0 0 1),陕西省教育厅专项科学研究基金 ( 99JK13 2 )联合资助
摘    要:丁家林-太阳坪金矿床是在秦岭造山带中发现的又一大型金矿床。该矿处于扬子板块与摩天岭地体,阳平关与青川区域边界断裂之间,赋存于茂县群黄坪组浅变质,强变形陆源细碎屑岩中,所圈定的矿(化)体均由叠加于黄坪组有利容矿岩段韧-脆性剪切带控制,与金有关的矿化蚀变主要有黄铁矿化,硅化,铁白云石化,成矿可分5个阶段,以早-中期细粒浸染状黄铁矿化,中-晚期条痕,断续细脉状黄铁矿化和晚期含多种硫化物-石英矿化为主成矿阶段,初步研究表明,属于沉积-浅变质叠加韧-脆性剪切与热液改造的类卡林型金矿床。

关 键 词:类卡林型金矿床  矿床地质特征  成矿条件  陕西  四川
文章编号:1006-558(2002)04-0024-05
修稿时间:2002年9月18日

Geological feature and metallogenic condition of the Dingjialin-Taiyangping gold deposit in the Shaanxi-Sichuan area
Abstract:The Dingjialin-Taiyangping gold deposit is another large gold deposit discovered in recent years at Qinling orogenic belt. It's located between the Yangzi continent and Motianling massif, or between the Yangpingguan and Qingchuan boundary faults. It occurs in epimetamorphic and strong deformation terrigenous microclastic rocks in the Huangping groups of the Mao county assemblage. The outlined orebodies are controlled by ductile-brittle shear belt that overprinted the favorable host rock section of the Huangping group. The alteration related to gold mineralization in the deposit include pyritization, silicification and ankeritization. The mineralization could be divided into 5 stages, and the early-middle fine disseminated, middle-late streak-slop veinlet pyritization stage and late multisulfide-quartzification stage are two dominant stages. The basic study supported that the deposit belongs to the sedimentary-shallow medamorphic superimposed ductile-brittle shearing or hydrothermal reforming Para-Carlin type gold deposit. The paper has made analysis for the metallogenic conditions according to the geological features above.
Keywords:Para-Carlin type gold deposit  geological features of deposit  metallogenic conditions  Shaanxi  Sichuan
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