Mouding Hao River Copper Rock Geochemical Prospecting Research

This thesis has been fluently finished under the project of exploration National crisis solid mines:Replaced copper resources exploration in Haojia river Mouding county Yunnan (item number:200 653 098).Haojia River copper deposit is a kind of typical Sandstone-type copper mineral in Yunnan. It is located in south-central of Chuxiong Basin, and in west side of Yuanmou ancient land, where the Kang-Dian axis extends southward. Due to Chuxiong Basin is bounded northwest by Qing River and Chenghai fault, and Bayan Har Indo-fold system, southwest by Red River Fault and Department of three rivers fold, east by Pudu River fault, Luzhi River fault and Yuanmou ancient land forming by long lime uplifted of Kang-Dian axis, this geological structure provides favorable conditions for forming mineralization. In addition, it prepares a theoretical basis for Prospecting of Application of rock geochemistry in Haojia River copper deposit.After more than two years of field geochemical survey in Haojia River copper deposit,1:5000 structural geological mapping,1:2000 tectonic geochemical mapping, etc. are completed, indicating ore-controlling factors of Haojia river copper deposit and the main ledge in the upper Cretaceous Matoushan group.Ideal model of geochemical anomalies had been established based on the study of research on the geochemistry and element anomalies in haojia river copper deposit and research on Sandstone copper before. The combination of indicator element In the copper ore body are arra nged in Cu-Ag-Mo-As-Sb-Hg. Vertical zonation of indicator elements wi thim seam arranging from top to bottom is:Znâ†'Csâ†'Pb-Tl-Moâ†'C u-Ag-Asâ†'Sb-Hg; lateral zonation from west to east is Cu-Ag-Moâ†'Cu-Hg-Ag-Pb-Baâ†'Cu-Ag-Pb-As-Sb-Hg.Through the application of geochemical exploration methods, the feature of metallogenetic geochemical anomaly is fixed. Seven valuabl e anomaly in A area in testing area is definite. According to some Or e-controlling factors such as stratum and lithology, prospecting targ et area circled is confirmed by Prospecting Engineering. It is proved that it is effective to use geochemical prospecting method in this a rea.