云南大红山铁矿是一个著名的大型富铜铁矿床,它的形成和富集引起了地质界的极大兴趣,不少地质单位都对它进行过研究。长期来,该铁矿一直被认为是一种典型的古海相火山岩型铁矿,它的矿床构造也被认为是一个典型的破火山口构造。近年来,笔者等实地详细调查和研究后,发现该区的矿床构造不是破火山口,实际上是一种特殊的复合构造型 Yunnan Dahongshan Iron Ore is a well-known large-scale copper-rich iron ore deposit. Its formation and enrichment aroused tremendous interest in the geological community. Many geological units have studied it. For a long time, the iron ore has always been considered as a typical ancient marine volcanic type iron ore, its deposit structure is also considered to be a typical caldera structure. In recent years, after careful investigation and research conducted by the author on the spot, it is found that the ore deposit structure in this area is not a caldera and is actually a special compound tectonic type