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目前在秦岭泥盆系中已发现了多处菱铁矿床及一些有意义的矿化线索。为加快找矿步伐,谈些粗浅认识,共同讨论,谬误之处,请批评指正。秦岭泥盆系菱铁矿成因类型及其基本特征秦岭泥盆系非常发育,广泛分布,属地槽型浅海相含铁建造。随所处古地理环境的差异,形成许多不同类型矿床。氧化环境下形成的当多式(即宁乡式)铁矿,多处都有所见,均以赤铁贫矿为主。在还原条件下形成的大西沟菱铁矿床和磨沟等菱铁矿点已有发现。当多铁矿床中,也见有在过渡环境下形成的菱铁一赤铁矿矿石类型。有些矿床受到后期不同程度的改
At present, there are many siderite deposits and some interesting mineralization clues found in the Devonian of the Qinling Mountains. To speed up the pace of prospecting, talk about some superficial understanding, common discussion, fallacy, please comment on criticism. Genetic Types and Basic Features of Devonian Siderite in Qinling The Devonian of Qinling is very well developed and widely distributed. It is an earth-trough shallow marine iron-bearing structure. With the paleogeographic environment where the differences, the formation of many different types of deposits. Oxidation environment formed when the multi-type (ie, Ningxiang type) iron ore, seen in many places, are mainly red iron ore-poor. The Daxigou siderite deposits and the siderite deposits such as Grinding Ditch formed under the reduction conditions have been discovered. In the case of multi-iron deposits, there is also a type of siderite-hematite ore formed in a transitional environment. Some deposits are subject to varying degrees of later changes