岩石矿物学杂志2025,Vol.44Issue(5):1193-1216,24.DOI:10.20086/j.cnki.yskw.2025.5001
电气石成分及同位素特征在示踪成矿流体来源方面的应用
Application of tourmaline composition and isotope characteristics in tracing the source of ore-forming fluids
摘要
Abstract
Tourmaline is a boron-bearing cyclosilicate mineral with complex chemical compositions.It can remain stable in a wide range of p-t conditions(t=150~900℃,p=6 MPa~6 GPa),making it an ideal tracer mineral for understanding geological process in different tectonic environments.We provide a comprehensive summary of the mineralogical characteristics and geochemical compositions of tourmaline,with a particular focus on the main factors controlling its boron isotopic compositions,including the boron source,equilibrium and/or Rayleigh fractionation,and the evolution of ore deposit.We further summarize and review the applications of tourmaline in key areas,including its major and trace elements,stable isotopes(H-O,Si,B),and radiogenic isotopes(Rb-Sr,Sm-Nd)for tracing the sources and evolution of geological fluids,as well as its role in investigating the metallogenic processes of various deposit types(e.g.,IOCG and orogenic gold deposits).Finally,this study highlights several promising di-rections for future research on tourmaline.In particular,further investigations are expected to achieve breakthroughs in crystal-chemical structure determination,in-situ micro-scale isotopic analyses(e.g.,Li,Mg),the construction of p-t-T trajectories to trace fluid evolution,and the reconstruction of paleo-seawater boron isotope signatures.Com-prehensive studies integrating tourmaline mineral chemistry,isotope geochemistry,and geochronological approaches will not only advance our understanding of fluid formation and evolutionary mechanisms,but may also provide cru-cial clues for deciphering the environmental evolution of early Earth.关键词
电气石/矿物化学/B同位素/同位素示踪/成矿流体Key words
tourmaline/mineral geochemistry/boron isotopes/isotopic tracing/ore-forming fluids分类
天文与地球科学引用本文复制引用
王雅涵,王丹,申婷婷,田忠华..电气石成分及同位素特征在示踪成矿流体来源方面的应用[J].岩石矿物学杂志,2025,44(5):1193-1216,24.基金项目
深地国家科技重大专项(2024ZD1001303) (2024ZD1001303)
国家重点研发计划项目(2023YFC2906901) (2023YFC2906901)
中国地质科学院地质研究所基本科研业务费(J2302,JB2030) (J2302,JB2030)
中国地质调查项目(DD20242923,DD20242528) Deep Earth Probe and Mineral Resources Exploration-National Science and Technology Major Pro-ject(2024ZD1001303) (DD20242923,DD20242528)
National Key R&D Program of China(2023YFC2906901) (2023YFC2906901)
Basic Scientific Research Foundations of the Institute of Geology,Chinese Academy of Geological Sciences(J2302,JB2030) (J2302,JB2030)
Chinese Geo-logical Survey Bureau Project(DD20242923,DD20242528) (DD20242923,DD20242528)