中文摘要：

西藏主要成矿带是东特提斯成矿域的重要组成部分。1999年以来,中国地质调查局地质大调查的全面实施,国家公益性基础研究的不断深入和商业性勘查的及时跟进,真正意义上的找矿突破得以实现。论文在前人资料和研究成果综述的基础上,结合研究团队近年来的研究进展,总结了西藏各成矿带主要矿床的地质特征和成矿规律,梳理了若干影响勘查评价和找矿突破的重大问题,构建了主要矿集区的勘查模型,提出进一步找矿方向和资源潜力。西藏四大成矿带特色鲜明,东特提斯成矿域集聚了从新特提斯洋俯冲-碰撞的多种矿床类型,控矿因素复杂,主要矿床类型为斑岩-矽卡岩-浅成低温热液型铜多金属和岩浆热液脉型矿床,成岩成矿时代从170Ma到12Ma,具有成矿时代跨度大、矿床类型丰富、成矿元素复杂、矿石质量较好之特点,已经成为我国最重要的资源储备基地。藏东玉龙成矿带除了斑岩型铜(钼)矿以外,斑岩体外接触带的矽卡岩型矿床具有重要工业价值,如玉龙II、V号矿体、昂青银铅锌(铜)矿,成岩成矿时代在40~38Ma,成矿岩体和矿体受北西向走滑构造控制的背斜控制。冈底斯成矿带类型发现识别出赋存于林子宗群典中组的低硫化浅成低温热液型矿床,显示谢通门—昂仁县以西林子宗群分布区寻找斑岩-浅成低温热液型铜多金属(银、金、铅锌)矿床具有重要意义;矿床学研究成果作为构造地质背景确定的指针之一,认为印度大陆和亚洲大陆的碰撞事件发生在52~50Ma,至少典中组火山岩还是陆缘弧的产物,并形成典型的浅成低温热液矿床,甚至斑岩-浅成低温热液矿床;含矿斑岩接触带有碳酸盐岩,接触带和深部需要勘查评价矽卡岩型铜多金属矿体或铅锌银矿体,90~13Ma侵位的花岗斑岩、花岗闪长斑岩可形成规模较大的矽卡岩型矿床,甲玛、驱龙外围的知不拉、邦铺、洞中拉?

英文摘要：

Main metallogenic belts in Tibet have become the important part of the Eastern Tethyan metallogenicdomain.Since1999,with the full implementation of the geological survey by China Geological Survey and thedeepening of the basic research on national public welfare and the timely follow-up of commercial exploration,the real breakthrough in prospecting has been realized.Based on the review of the previous data and researchresults in combination of the recent progress in research by the authors’research group,this paper summarizes thegeological characteristics and metallogenic regularity of the main deposits in the metallogenic belts,Tibet,arranges some major problems affecting the exploration and evaluation as well as prospecting breakthrough,builds an exploration model of the main ore district,and puts forward the further prospecting direction andresource potential.Four main metallogenic belts in Tibet are distinctive.The Eastern Tethyan metallogenicdomain concentrates a variety of deposit types from Neo-Tethys subduction to collision,with the complicatedore-controlling factors.The main ore deposits are porphyry-skarn-epithermal copper polymetallic deposits andmagmatic hydrothermal vein deposits,and their metallogenic ages are from170to12Ma.Tibet has become themost important resource reserve base in China with large span of metallogenic ages,various types of deposits,complex metallogenic elements and good ore quality.In the Yulong metallogenic belt of east Tibet,besidesporphyry copper(molybdenum)deposits,skarn deposits in the external contact zone of porphyry,such as YulongNo.II and No.V orebodies and Angqing silver-lead-zinc(copper)orebody,also have important industrial values.The diagenetic and metallogenic epoch is40~38Ma,and the ore-forming rock and orebody are controlled by theanticline of the NW-striking slip structure.The identification of the existence of low sulfidation epithermaldeposits in the Dianzhong Formation of Linzizong Group in the Gangdise metallogenic belt shows the importantsignificance of exp