西北地质Issue(4)：148-159,12.
北祁连西段钨矿床成矿地质特征对比与研究
Comparison and Research on Ore-forming Geological Characteristics of Tungsten Deposits in the Western Segment of North Qilian Mountains,Northwest China
摘要
Abstract
There arethree large scale tungsten deposits in the western segment of North Qilian Mountains,Northwest China,including Taergou ,Xiaoliugou and Xiliugoudeposits from west to east on space. They have their own characteristics in geological features,with totally different metallogenic con-ditions. After comparing geological characteristics of these tungsten deposits and analyzing their metallo-genic conditions,these deposits were thought to be the production of Caledonian Period.The initial W was sourced from the proterozoic old strata,the quantity,occurrence state and size of tungsten ore body are strictly controlled by geological structure,and the tungsten concentrated and enriched to be form the ore bodies by magmatic hydrothermal process of acidic granite intrusion. The main mineralization was lasted from Middle Ordovicianto Ludlow Silurian. The Tergou and Xiaoliugou tungsten deposits are formed during the “plate subduction”,while the Xiliugou tungsten deposit is formed in the “continent-continent collision”. The western segment of North Qilian Mountains has a good background of tung-sten mineralization and favorable conditions for mineralization.Due to the low degree of geological works had been done in the peripherals of these deposits,a great break through will be obtain when the geolog-ical works (the main exploration method will be drilling)can be carried out in their peripherals and deep parts.关键词
钨矿床/地质特征/控矿因素/北祁连西段/中国西部Key words
tungsten deposits/geological characteristics/Ore-controlling factors/western seg-ment of North Qilian Mountains/Western China分类
天文与地球科学引用本文复制引用
赵建仓,裴耀真..北祁连西段钨矿床成矿地质特征对比与研究[J].西北地质,2015,(4):148-159,12.基金项目
中国地质调查局地质大调查项目“北山-祁连成矿带地质矿产调查评价成果集成”(12120113046300) （12120113046300）
