S同位素示踪热液矿床成矿物质来源综述

Summary of Sulfur Isotopic Tracing for Metallogenic Materials of Hydrothermal Deposits

具有明显分馏效应的硫同位素以各种含硫物种广泛赋存于热液成矿作用过程中,因此硫同位素成为示踪热液矿床成矿物质来源的主要方法之一。本文在总结前人研究基础上,综述了应用硫同位素在研究热液矿床成矿物质来源问题上的多解性,认为硫同位素示踪应用须在了解热液矿床地质前提下,准确区分成矿期次,判别硫同位素分馏平衡状态,结合Ohmoto模式才可以准确赋予同位素的地质意义。

Sulfur isotopes with obvious fractionation effect occur widely in the process of hydrothermal mineralization in the forms of various sulfur species, therefore, sulfur isotopes is a major method for tracing the metallogenic materials of hydrothermal deposits. On the basis of former researches, this paper summarizes the multiple solutions of sulfur isotopes application in studying metallogenie materials of hydrothermal deposits, believing the application of sulfur isotopic tracing needs to know the deposit geology in advance, differentiate precisely the metallogenic periods, distinguish fractionation equilibrium state of sulfur isotopes, and integrate Ohmoto model, so as to endow precisely the geological significance.