The Typical Ore Deposit Ore-prospecting Model And Quantitative Forecasting In The Southern Tungsten Tin Polymetallic Ore Zone

The southern tungsten tin polymetallic ore zone is the most abundant and concentrated distribution area of tungsten-tin deposit in China and even in the world.The Shizhuyuan tungsten polymetallic deposit is a super large deposit in the southern tungsten tin polymetallic ore zone,enjoys a fame as the world museum of non-ferrous metals.This study aims to summarize geological features of the Shizhuyuan tungsten polymetallic deposit,and then,according to the geochemical anomaly characteristics of the elements,setting up the geological-geochemical prospecting model,finally,quantitatively predicting the tungsten resources of the tungsten tin polymetallic in Southern hunan.By researching a series of achievements of our predecessors,Summarized the geological characteristics of strata,structure,magmatic rocks,minerals information etc.Based on the study of regional rocks,altered rocks and ores,stream sediment geochemical data,the author has achieved the following understandings:1?The granitoid rocks in Shizhuyuan tungsten polymetallic deposit are obviously enriched in tungsten,tin,copper and lead,and also show enrichment of the incompatiable elements(uranium,thorium,niobium,hafnium,lithium,beryllium,rubidium,caesium,rare earth elements),manganese and iron.2?The altered rocks and ores in Shizhuyuan tungsten polymetallic deposit are significant enriched in tungsten,tin,copper,lead,zinc and beryllium,and also have high concentration of high field strength element(thorium,zirconium,scandium,yttrium,high rare earth elements),cobalt,gallium,manganese and iron.3?The ore-forming indicator elements assemblage that 1:50000 stream sediments confirmed is tungsten,tin,molybdenum,bismuth,copper,lead,zinc,arsenic,antimony,silver,gold,fluorine and manganese,totally having 13 element.Further,the ore-forming indicator elements assemblage that 1:200000 stream sediments confirmed is tungsten,tin,molybdenum,bismuth,copper,lead,zinc,cadmium,arsenic,antimony,silver,gold,fluorine,beryllium,lithium,niobium uranium,and manganese,totally having 18 element,among them,manganese,lithium,niobium and uranium can be used as the indicator elements of forming granitoid rocks.Colligate the geological and geochemical characteristics of Shizhuyuan tungsten polymetallic deposit,this paper established the model of geological geochemical prospecting Shizhuyuan tungsten polymetallic deposit.According to the typical geological geochemical prospecting model,in the ore district 9000 km2 range inner set 8 anomaly area,use abundance estimation method and linear fitting estimated the quantitative amount of tungsten resources.