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中国地质科学院矿产所四室实验组,在地质研究基础上。利用矿物包裹体测温法,测定了宁芜地区铁矿矿物的生成温度,提出以下看法: 1.该区从567～175℃的广泛温度区间内均有矿化形成。铁矿主要生成于500～340℃,硫矿生成于295～175℃。二者属于同一成矿作用不同阶段的产物。铁矿床属于气成高温热液成因,成矿溶液富Nacl。 2.在同一矿床内,成矿温度在垂直方向上具有上商、下低的沉淀分带(钟九矿床);同一矿区的不同类型矿床之间,成矿温度呈现上高、下低的分带现象。这是晚生成的温度高的
Institute of Geology, Chinese Academy of Geological four-chamber experimental group, based on the geological study. Based on the temperature measurement of mineral inclusions, the formation temperature of iron ore minerals in Ningwu area was determined. The following observations were made: 1. The mineralization took place in a wide temperature range from 567 to 175 ℃. Iron ore is mainly generated at 500 ~ 340 ℃, sulfur ore generated at 295 ~ 175 ℃. Both belong to the same stage of mineralization at different stages of the product. The iron deposits belong to the genesis of high temperature hydrothermal gas and ore-forming solution is rich in Nacl. 2. In the same deposit, the metallogenetic temperature has vertical and upward Shangrong low sedimentary zoning (Zhongjiu deposit); between the different types of ore deposits in the same mining area, the ore-forming temperature is high and low With the phenomenon. This is a late-generation high temperature