首页|期刊导航|中国地球化学学报(英文版)|REE and Trace Element Geochemistry of Yinachang Fe-Cu-REE Deposit, Yunnan Province, China
中国地球化学学报(英文版)2004，Vol.23Issue(3)：265-274,10.
REE and Trace Element Geochemistry of Yinachang Fe-Cu-REE Deposit, Yunnan Province, China
REE and Trace Element Geochemistry of Yinachang Fe-Cu-REE Deposit, Yunnan Province, China
摘要
Abstract
REE and other trace elements in ores, wall rocks, alkaline volcanic rocks and diabase dikes have been determined in the Yinachang Fe-Cu-REE deposit. Comparative studies of REE and trace element geochemical characteristics of these geological bodies indicate that the ores and alkaline volcanic rocks contain abundant REE and Y (65.9-4633)×10-6, with higher abundances of As, Mo, Nb, Co and U than those of the crust. Their chondrite-normalized patterns show a strong enrichment of LREE and a positive Eu anomaly, in contrast to those of the dolomites which are characterized by slight LREE enrichment and moderate negative Eu anomaly. The REE patterns of ores are similar to those of hydrothermal sediment cores in the East Pacific Rise, whereas the REE patterns of dolomites are similar to those of PAAS (Post-Archean Average Shale). In combination with the geological setting of the deposit, the primary ore-forming fluids might have higher REE and volatile elements, and might have been derived from mantle degassing, or the alkaline volcanic magmas. The Yinachang Fe-Cu-REE ore deposit is considered to be of volcanic exhalation-hydrothermal sedimentary origin.关键词
rare-earth elements/exhalation-hydrothermal/positive Eu anomaly/LREE enrichment/Fe-Cu-REE depositKey words
rare-earth elements/exhalation-hydrothermal/positive Eu anomaly/LREE enrichment/Fe-Cu-REE deposit引用本文复制引用
杨耀民,涂光炽,胡瑞忠..REE and Trace Element Geochemistry of Yinachang Fe-Cu-REE Deposit, Yunnan Province, China[J].中国地球化学学报(英文版),2004,23(3):265-274,10.基金项目
This research project was financially supported by the China National "973" Program (G1999043200) and the Outstanding Young Researcher Funds from the National Natural Science Foundation of China (49925309). （G1999043200）
