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In‐situ Major and Trace Elements Analysis for Garnets from the Xitian Orefield, SE China: Implications for Skarn‐type Mineralization
Author(s) -
ZHOU Haodi,
SHAO Yongjun,
XIONG Yiqu,
LIU Jianping
Publication year - 2017
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.13281
Subject(s) - skarn , mineralization (soil science) , in situ , geochemistry , geology , trace (psycholinguistics) , china , mineralogy , environmental chemistry , chemistry , soil science , geography , fluid inclusions , paleontology , archaeology , quartz , linguistics , philosophy , organic chemistry , soil water
The Xitian W-Sn polymetallic orefield is one of the most significant finds of tungsten–tin mineral resources in southeastern China, and the skarn orebodies have been considered to be the dominant mineralization type of the orefield (Zeng et al., 2005; Wu et al., 2011). The orefield lies at the intersection of the Qinzhou-Hangzhou Combined Zone (QCZ) and the Nanling Metallogenic Zone (Mao et al., 2011; Mao et al.,2013), comprising the Heshuxia, Goudalan, Longshang W–Sn deposits and Chaling Pb-Zn deposit. The Longshang W-Sn deposit and the Chaling Pb-Zn deposit situated in two sides of the Xitian Granite have skarn type mineralization developed. Garnet, as one of the most significant hydrothermal alteration minerals related to skarn-type mineralization, can be informative of the ore-forming fluid composition evolution during hydrothermal mineralization process, via implications from garnet geochemistry variations. The features of garnet composition variations during the skarn-type mineralization process of the Xitian W-Sn polymetallic orefield are discussed in this paper, by interpreting geochemical messages printed on garnets. The major and trace elements of garnets from the Longshang W-Sn deposit and the Chaling Pb-Zn deposit were measured using electron probe microanalysis (EPMA) and laser ablation inductively-coupled mass spectrometry (LA-ICP-MS). *