West Tianshan Mountains In Northern Areas Of Copper, Gold And Polymetallic Ore Studies And Ore Deposit Location Prediction

Conducted by Diwa theory, the paper give a whole research to the metallogenetic geotectonic background and its evolution, ore-controlling factors, mineralization series, and mineralization regularities. The paper also analysis the genesis of lamasu copper ore deposit by olygenetic compound deposit?theory, and give a exploring research in prospecting for deposit.Through the research,, the paper gains some new knowledge and progenies on: (1) For the first time to apply the Diwa theory to re-model the geotectonic history of North-west Tianshan ,the process of formation evolution and development has involved Pre-gcosynclinal stage, Gcosynclinal stage,Platform stage and Diwa stage. The geotectonic character belong Diwa area, and seven geotectonic unites are divided to fifth grade. (2) Analysis the deep structure through the aeromagnetic data handling, discuss the deep structure and regional structure frame, deduce the regional basal fractures and consider that Sitai deep fracture and Boluholu deep fracture are the most important ore-controlling fracture. (3) Make a systematic discussion on ore-controlling factors, summing up the deposit types and mineralization series, researching the mineralization regularities and mineralization prospecting, erecting the regional metallogenetic model, found a method of deposit prospecting and three geologic information that constituting ore-belt selection, target prospect and ore area estimate. (4) Bring forward and dissertate the approach of deposit or ore body prospecting by the numbers, and points out a new view that the genesis of Lamasu copper deposit as a polygenetic compound deposit. Meanwhile, the paper gives prospecting research for Lamasu copper deposit. (5)Ascertaining the volcanic edifice of Dabate copper deposit, and point out the relation of copper deposit and volcanic edifice, it provide theory foundation for next prospecting.