Trace Element Geochemistry of Accessory Minerals and Its Applications in Petrogenesis and Metallogenesis

• 责任者：Zhao Zhenhua (Guangzhou Institute of Geochemistry ; Chinese Academy of Sciences ; Guangzhou 510640 ; China)
• 刊名：Earth Science Frontiers
• 出版年：2010
• 卷期：17（1)
• 关键词：元素地球化学 ; elements geochemistry ; 成矿作用 ; metamorphic metallization
• 页码：p.267-286
• 图表：15 illus., 3 tables, 67 refs.
• 分类号：0600
• issnNo：ISSN1005-2321
• isbnNo：CN11-3370/P

This is a review on the accessory mineral geochemistry.  Rapid successful developments of accessory mineral geothermometer have been achieved because of the evident progress in high precision in-situ analyses and mineral synthetic techniques. Accessory mineral thermometer, especially zircon, and next rutile, garnet, and sphene are introduced systematically in this paper.  The combined experimental and natural mineral analyses define that the contents of trace elements between accessory mineral and associated minerals vary in linear dependence upon temperature and oxygen fugacity, and the equations for different accessory minerals thermometers are given by many researchers. The Th/U ratios, used as an indictor of zircon genesis, must be treated with caution.  REE distribution patterns in metamorphosed or hydrothermal zircons and apatites are discussed and their implications for petrogenesis are introduced.