REE geochemical characteristics of the two types of granitic rocks in Jiangxi Province and their metallogenic significance |
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| Authors: | Jili Shen Jiayuan Liu |
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| Institution: | (1) Institute of Geoscience, Jiangxi Province, China |
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| Abstract: | Preliminary studies have shown that REE geochemical characteristics are useful criteria to discriminate the two types of granitic
rocks in Jiangxi Province. They are also of significant indication of metallization.
The principal REE geochemical indices are ΣREE, ΣCe/ΣY andδEu, as well as REE distribution pattern. Each of the two types of granitic rocks has a metallogenic evolutionary series of
its own with a successive decrease inδEu.
The application of REE geochemistry in the study of petrogenesis and ore genesis has been receiving increasing attention.
As will be shown in this paper, REE geochemical characteristics, especially ΣREE, ΣCe/ΣY,δEu and REE distribution pattern, are efficient indicators for distinguishing between the two series of granitic rocks in Jiangxi,
and thus enable us to have a better understanding of the ore-forming processes in this region. |
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