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夏塞银多金属矿床位于四川省西部巴塘县义敦海子山北侧,产于燕山晚期绒依措花岗岩外接触带的大型银铅锌多金属矿床。是在义敦岛弧带上发现的与中酸性岩浆岩的侵入活动密切相关的一种新类型的超大型银多金属矿床,在西南三江和青藏高原具有重要的找矿指导意义。本文通过对该矿床的硫、铅同位素特征研究,探讨矿床成因,为区域成矿规律研究和找矿突破提供基础资料。
The Xiesai silver polymetallic deposit is located in the north of Yitun Haizishan, Batang County, western Sichuan Province, and is a large-scale silver-lead-zinc polymetallic deposit that was produced in the outer contact zone of the Yoyansi granite. Is a new type of super-large silver-polymetallic deposit closely related to the intrusive activity of intermediate-acidic magmatic rocks discovered on the Yidong Island arc belt. It has important significance in prospecting for gold deposits in Sanjiang and Qinghai-Tibet Plateau of the southwest. Based on the study of the sulfur and lead isotopic characteristics of this deposit, this paper explores the genesis of the deposit and provides the basic information for the study of regional metallogenic regularity and ore breakthrough.