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Metallogenic Geological Characteristics and Mode of Sinian Lead-Zinc Deposits in the Northern Margin of Yangtze Landmass
Author(s): LI Qiang, WANG Xiaohu
Pages: 1-
6
Year: 2009
Issue:
1
Journal: Resources Environment & Engineering
Keyword: 扬子北缘; 铅锌矿; 地质特征; 成矿模式;
Abstract: 目前在扬子北缘已发现的铅锌矿床主要分布于震旦系地层中,新近发现的多个大、中型铅锌矿床表明区域找矿潜力巨大.通过对扬子北缘震旦系中铅锌矿形成的含矿建造、控矿构造、岩相古地理、地质流体等成矿条件的系统研究,分析区域成矿的特点,认为区域含矿地层主要为震旦系灯影组白云岩,成矿金属来源于震旦纪-寒武纪地层,成矿流体主要来自海水,有大气降水的加入,矿床形成受背斜(穹窿)构造控制.初步建立铅锌矿的成矿模式,以期服务于本区铅锌矿床的勘查与研究.
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