【作者】 李朝阳； 刘玉平； 叶霖； 皮道会；

【Author】 LI Chao-yang,LIU Yu-ping, YE-Lin,PI Dao-huiInstitute of Geochemistry , Chinese Academy of Sciences ,Guiyang 550002 ,China

【机构】 中国科学院地球化学研究所；

【摘要】 很多矿产都产于不整合面及其附近,常见的有油气、金、铀、铅锌、铜、锑与铂族元素等,不整合面与成矿的关系值得深入研究。作者认为,不整合面不仅是成矿热液运移的通道和储矿的空间,且是一种容易失稳的界面,在后期的构造活动演化过程中,常形成走向弯曲的拆离断层带和韧性与脆性变形并存的韧性剪切带,进而驱动矿液运移和沉淀。不整合面类型不同,矿体形态和产出特征也不同,不整合面附近多形成一些中低温热液矿床。清墟洞组是贵州铅锌、汞和铀矿的重要赋矿层位,其原因是该地层成矿元素丰度较高,地层上部有透水性低的“地球化学障”,下部有与断裂相通的“矿源层”,一般都沿深大断裂发育的背斜轴部出露。银厂坡矿床的地质地球化学特征与其附近的会泽的矿山厂、麒麟厂(超)大型铅锌矿床非常相似,预测其深部具有良好的找矿前景。更多还原

【Abstract】 It is worth studying the relationship between discordant surface and ore formation. At or near discordant surfaces, there are many kinds of mineral deposits, such as oil and gas, Au, U, Pb-Zn, Cu, Sb, and PGE. They are usually of meso-epithermal origin and have different shapes of ore-body and different occurrence features . The Qingxudong formation is an important host for Pb-Zn, Hg and U ore deposits, which generally distribute along anticlinal axes with deep faults. The Yinchangpo deposit has similar geological and goechemical characteristics to the Kuangshanchang and Qilinchang super large Pb-Zn deposits in Huize and thus has a good prospect of exploration in the deep parts of the deposit.更多还原