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1989•Acta Geologica Sinica - English EditionRequires access

REE Geochemistry and Mineralization Characteristics of the Zudong and Guanxi Granites, Jiangxi Province

Huang Dianhao, Wu Chengyu, Han Jiuzhu

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Abstract

Abstract The Zudong and Guanxi granites are original rocks of the ion adsorption‐type HREE and LREE deposits in weathering crust of granites. The ∑REE 1 value and LREE 2 / HREE ratio of the Zudong granite are 264 ppm and 0.81‐0.24 respectively, and the average Y/∑REE ratio is 35.8‐54.5%. This is mainly due to magmatic crystallization and evolution and deuteric metasomatism (albitization, muscovitization and fluorite‐doveritization). These alterations resulted in endogenic mineralizations of yttrium‐group REE fluorine carbonates, silicates and arsenates. The Guanxi granite is characterized by LREE enrichment (the average LREE/HREE ratio is 2.43).

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Abstract The Zudong and Guanxi granites are original rocks of the ion adsorption‐type HREE and LREE deposits in weathering crust of granites. The ∑REE 1 value and LREE 2 / HREE ratio of the Zudong granite are 264 ppm and 0.81‐0.24 respectively, and the average Y/∑REE ratio is 35.8‐54.5%. This is mainly due to magmatic crystallization and evolution and deuteric metasomatism (albitization, muscovitization and fluorite‐doveritization). These alterations resulted in endogenic mineralizations of yttrium‐group REE fluorine carbonates, silicates and arsenates. The Guanxi granite is characterized by LREE enrichment (the average LREE/HREE ratio is 2.43).

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Available abstract

Abstract The Zudong and Guanxi granites are original rocks of the ion adsorption‐type HREE and LREE deposits in weathering crust of granites. The ∑REE 1 value and LREE 2 / HREE ratio of the Zudong granite are 264 ppm and 0.81‐0.24 respectively, and the average Y/∑REE ratio is 35.8‐54.5%. This is mainly due to magmatic crystallization and evolution and deuteric metasomatism (albitization, muscovitization and fluorite‐doveritization). These alterations resulted in endogenic mineralizations of yttrium‐group REE fluorine carbonates, silicates and arsenates. The Guanxi granite is characterized by LREE enrichment (the average LREE/HREE ratio is 2.43).

Key concepts: Geochemistry, Geology, Greisen, Metasomatism, Fluorite, Mineralization (soil science), Petrogenesis, Petrology

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REE Geochemistry and Mineralization Characteristics of the Zudong and Guanxi Granites, Jiangxi Province — Research Paper | ScholarLens