| "Pingxiang city Shangli Zhimushan copper-polymetallic mineral land is located at Jinshan Town in the N-N-W part of Jiangxi Pingxiang, the deposit is located in the mid west of Jiangxi province. Yangtze plate and Huaxia plate boundary fault- Pingxiang-Guangfeng deep fault belt in the south, and the north is Yifeng- Jingdezhen deep fault zone and adjacent Jiangnan uplift zone, the membership of Qin hang belt. Based on previous data access, field investigation and comprehensive analysis, put forward some ideas and opinions in the geologic characteristics, ore genesis and metallogenic regularity and prospecting forecast, summed up in the following points:1. This giggings is located in west of the east segment of Qin hang belt(Jiangxi section) at the west end of Yanshan period of crust mantle, crust thermal fluid increased, activation of recombinant, acidic magma and hydrothermal mineralization period after I, triggered by endogenous metal metallogenic explosion, metallogenic tectonic environment.2. Through the stratum information, that two of the Middle Jurassic Qixia formation of calcareous mudstone intercalated with ~ micritic limestone, Permian boundary in two small micrite with carbonaceous mudstone and Maokou group containing biological micrite dolomite interlayer, are fine clastic rocks and carbonate rocks containing calcium. With the rock magma thermal metasomatic deposit. Direct rock mining in Maokou composed of copper polymetallic ore, because of Maokou Formation in direct contact with the Yanshan period granite diorite porphyry Shiki mountain the results.3. The area of gliding nappe fault(F1) west part of Yifeng to the Xishan fault, the cutting depth, the formation of the early activities for a long time, Yanshan in early may become the magmatic activities guide rock and post magmatic ore conducting channel, under the influence of the secondary fracture, or lead to the formation of fold formed in interlayer fracture zone as the ore space into minerals.4. The area is divided into North and south, two rock, according to the different mineralization types, analysis of possible isogenous two invasion. The ore-forming fluid mainly formed by tungsten, iron mineralization in Southern rock, while in northern rock is formed with copper and molybdenum mineralization which formed mainly in the South; ferrotungsten, copper and molybdenum mineralization pattern of the North ". The F1 system of Anyuan formation in the lower three fold in ZK3101 hole data, the original rock has accepted the sericite andalusite conformal contact, hydrothermal alteration, the zinc spectrum quantitative analysis(including Huang Tie) mineralization significantly. Obviously, in order for copper molybdenum, zinc, pyrite.5. The statistics of a large number of geological data, the contact zone of ore deposit in parallel with vein filling ore deposit, the geological characteristics and typical contact metasomatic skarn rock type deposit is obviously difference. The dual nature of both the mineralization and hydrothermal metasomatic ore pulp filling, can be defined as a generalized silica slurry penetration- hydrothermal metasomatic deposit card.6. According to the comparison of regional data and the analysis of metallogenic geological conditions, â‘ it should be further strengthen the prospecting work of copper, molybdenum in the diggings at north of the east segment and the west;â‘¡Mine ZK813 hole in the footwall of autochthonous system drill into two Permian Ma Ping dolomite formation, source rocks in Dali rock lead to find F1, magmatism and its contact zone, which became a new prospecting idea; â‘¢ To find iron copper polymetallic ore in coal bearing clastic rocks. |
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