中文摘要:通过对铜陵地区系统的填图观察和室内研究，初步确定了铜陵地区海 西期的热水沉积岩。它们是：石炭系黄龙组，由下而上、由内到外的层序包括含硫化物滑石 蛇纹石岩(由原岩为含水富镁碳酸盐岩+二氧化硅的热水沉积岩变质而成)→块状、层状(含铜 金)黄铁矿±铁碧玉±硬石膏±菱铁矿±菱锰矿±硅质岩→含炭质粘土→白云岩；二叠系为 栖霞组(含铅锌金)硅质岩、孤峰组(含锰)硅质岩和大隆组(含钼)硅质岩。这些热水沉积岩总 体构成铜陵地区晚古生代多期热水活动的格局。常量元素、微量元素和稀土元素的分析结果 表明，本区的硅质岩具有热水沉积岩的特征。氧同位素估算的热水硅质岩古温度在49℃以上 。铜陵地区的热水沉积岩对层控矿床的勘查和隐伏矿床的预测评价具有重要的理论和实际意 义，尤其是黄龙组底部的热水沉积岩是铜陵地区找矿的重要标志，对于指导长江中下游地区 ，如宁芜等地，寻找该层位的矿床有着不可替代的指示意义。
Abstract:Based on the observation and research work conducted during mapping of Tongling district, the authors have determined the Hercynian hydrothermal sedimentary roc ks. They include two sequences of rock, i.e., (1) the sequences of Upper Carboni ferous Huanglong Formation, which upward or outward comprises laminated sulfide_ bearing talc_serpentinite metamorphosed from a protolith, aquiferous magnesium_r ich carbonates plus silica, massive, stratified copper_gold_bearing pyrite, and/ or jasparite, anhydrite, siderite, rhodochrosite, silica, carbon_bearing clays a nd dolomite; (2) the sequences of Permian, Qixia Formation (P1q) lead, zin c-bearing cherts, Gufeng Formation (P1g) manganese_bearing chert, and Dalo ng Formation (P2d) molybdenum_bearing chert. On the whole, these hydrother mal sedimentary rocks have characteristics of periodical hydrothermal activity i n Late Paleozoic. Major, trace, and rare earth elements data of the cherts indi cate that the cherts in Tongling district are characterized by exhalites or hydr othermal sedimentary rocks. Paleotemperature of cherts estimated by O isotope is over 49℃. In Tongling district, the hydrothermal sedimentary rocks are of grea t importance both in theory or practice for exploration of the stratabound depos its and in diagnosis of the hidden deposits. The exhalites at the bottom of the Huanglong Formation not only serve as an important indicator bed for exploration in Tongling district, but also play an irreplaceable role in guiding prospectin g work in such areas of the middle_lower Yangtze valley as Ning_Wu (Nanjing_Wuhu ) basin.
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基金项目:国土资源部科技司专项研究计划(编号：B0002_3)和地质调查项目(编号：20010000004)
引用文本：
曾普胜，蒙义峰，杨竹森，裴荣富，王训诚.2004.安徽铜陵矿集区与块状硫化物矿床有关的热水沉积岩[J].矿床地质,23(3):334~343.2004.Hydrothermal Sedimentary Rocks of Sedex_type Massive Sulfide Deposits in Tongl ing Ore Cluster Area, Anhui Province[J].Mineral Deposits23(3):334~343
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