Geological Features Of Typic Lead-zinc Deposits In Maizi Basin In Altay Mountains And Mineral Resources Quantitative Prediction

The Altay Mountains is located in the north part of the XinJiang province; it is a very important part of central Asian orogenic belt between the Siberia plate and Kazakhstan-Junggar plate in structure, these two plates and the Paleo-Asian ocean interaction with each other and controls this area structure development, at the same time the character of deposit. This area have extensive distribute the last Paleozoic volcano-sediment rock and companion polymetallic mineralization. So Altay deposit area is a very important solid resource basement of our country. In this area, we have found many of famous deposit, for example Asele copper deposit, Kalatongke copper-nickel deposit, Keketale lead-zinc deposit and Menku iron ore deposit. Even though we have spend many of time perambulate here, but the potential of resources we still can't underrate.Recently geochemistry and prospection show that the potential of Altay area polymetallic resources is very huge, Maizi basin is one of the basins in the north of Altay, the lead, zinc, cadmium and copper element geochemistry character of anomalies is significantly.In this paper, the research order the metallogenic theory, study on the typical mineral deposit in this basin, colligate analysis geology, deposit, geophysical, geochemistry information. Ascertain the forecast element; Building the model of regional resources prediction; based on the data analysis three typical lead-zinc mineral deposit law of metallogenic, found the relation ship between the geochemistry secondary halo and reserves of deposit, and calculate the lead-zinc reserves in Maizi basin.In order to finish this paper, based on ARCGIS platform support, built a information system include geology, deposit, aeromagnetic, gravity, geochemistry and so on. Building the massive magnetite deposit, magnetite-sulfide type lead-zinc deposit and fluorite-bearing lead deposit prediction model, plot out this three type of geochemistry abnormal area in the Maizi basin, the number of massive magnetite type area is 57, magnetite-sulfide type lead-zinc type is 138, and fluorite-bearing lead type area is 73. Improvement of areal productivity method has been made in this thesis; total resource of lead of this style is 3.51 Mt, zinc 12.48 Mt.Improvement of areal productivity method has been made in this thesis; a pilot study was launched during field work which showed that properly use of portable instruments of geophysical and geochemical on abnormity area will help ours to find prediction the deposit position and reserve.