摘要
Abstract
Xijianquan wollastonite deposit is located in uplift of Tarim landmass(Ⅲ)-Dunhuang Landmass(Ⅲ-2)-Dunhuang basement complex(Ⅲ-2-2).It belongs to the Ancient Asian metallogenic domain(Ⅰ-1),Tarim Metallogenic Province(Ⅱ-4),Cihai-Gongpoquan Fe-Cu-Au-Pb-Zn-Mn-W-Sn-Rb-V-U-P metallogenic belt(Ⅱ-14),Liuyuan-Pingtoushan Caledonian Indosinian au-Cu-Ni-Pb-Zn-Tungsten(Fe-Mn)vanadium,phosphorus,uranium,potassium feldspar metallogenic belt(Ⅳ-14 ③),The ore body is located in the contact zone between the Late Permian granite mass and the C rock group of the Archaeoeo-Paleoproterozoic Dunhuang group.There are 2 skarn zones found in the mining area and 2 wollite ore bodies delineated.Among them,Wo1 ore body is 610m long with an average thickness of 5.37m and an average grade of 55.95%,and Wo2 ore body is 900m long with a thickness of 1.79～14.32m.With a grade of 44.79%～70.28%and an average grade of 61.37%,the ore-bearing lithology is quartz diopside limestone,the top and bottom wall rocks are marble,the ore has granuloblastic structure and massive structure,the natural type of the ore is wollastonite,calcite and quartz type,and the industrial grade of the ore is wollastonite for ceramic industry.According to the geological and ore characteristics of the mining area,the deposit type is skarn wollastonite deposit..关键词
硅灰石矿/地质特征/找矿标志/北山Key words
wollastonite mine/geological characteristics/prospecting criteria/Beishan分类
天文与地球科学
