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近几年在我国南方石炭系地层内发现的一批菱铁矿床和产于石炭系地层内的层状接触交代铁矿床,在成矿时代和含矿岩系上是可以对比的.我们认为,有一定层位的层状接触交代铁矿床可能是由菱铁矿床经岩浆热液改造而成.一我国南方的石炭纪菱铁矿床(一)南方石炭纪的古地理环境我国南方晚泥盆世海浸始于中国石燕期,终于柳江运动.柳江运动后到早石炭世
In recent years, a number of siderite iron deposits discovered in the Carboniferous strata in the south of China and the layered contact metasomatic iron deposits produced in the Carboniferous strata can be compared in the ore-forming epoch and the ore-bearing rock series. It is believed that there is a certain level of stratiform contact with the iron ore deposit that may have been transformed from siderite by magmatic hydrothermal fluids. A Carboniferous-siderite deposit in the south of China (I) The paleogeographic environment of the southern Carboniferous China The late Devonian sea-immersion started in the Shiyan Period in China and finally ended up in the Liujiang River Movement.