| Transportation of REE in the Ductile Shear Zone in Hetai Gold Deposit,Guangdong Province |
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| 作者姓名： | 杨凤根 王鹤年 华仁民 |
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| 作者单位： | [1]InstituteofSoilScience,ChineseAcademyofSciences,Nanjing210008,China [2]DepartmentofEarthScience,StateKeyLaboratoryforMineralDepositsResearch,NanjingUniversity,Nanjing210093,China |
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| 基金项目： | ProjectsupportedbytheNationalNaturalScienceFoundationofChina (4 973 3 0 12 ) |
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| 摘 要： | The REE transportation in two sorts of mylonites of ductile shear zone, in Hetai gold deposit, Guangdong province was studied. The results show that there is REE compositional variation regularly in the ductile shear zone. When mica-quartz schist and migmatite are changing into mylonites or ultramylonites, i.e., along with intensifying deformation,the contents of each rare earth element and the total contents of the LREE, HREE and REE increase or decrease regularly, but the REE patterns of the rock are accordant. The isocon diagram of the tectonic rocks before and after deformation shows that the REE compositional variation of the mylonites or ultramylonites are very small, but there is a few REE moving in or out in the rock deformation. The reason of the REE compositional variation is that there are volume change and fluid flow in the rock deformation, and it leads to the LREE relative enrichment and HREE relative loss.
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| 关 键 词： | 金矿床 广东 河台金矿 输运 REE HREE LREE |
Transportation of REE in the Ductile Shear Zone in Hetai Gold Deposit, Guangdong Province |
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| Yang Fenggen.Transportation of REE in the Ductile Shear Zone in Hetai Gold Deposit,Guangdong Province[J].Journal of Rare Earths,2003,21(6):680-685. |
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| Authors: | Yang Fenggen |
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| Affiliation: | Yang Fenggen ~ |
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| Abstract: | The REE transportation in two sorts of mylonites of ductile shear zone, in Hetai gold deposit, Guangdong province was studied. The results show that there is REE compositional variation regularly in the ductile shear zone. When mica-quartz schist and migmatite are changing into mylonites or ultramylonites, i.e., along with intensifying deformation, the contents of each rare earth element and the total contents of the LREE, HREE and REE increase or decrease regularly, but the REE patterns of the rock are accordant. The isocon diagram of the tectonic rocks before and after deformation shows that the REE compositional variation of the mylonites or ultramylonites are very small, but there is a few REE moving in or out in the rock deformation. The reason of the REE compositional variation is that there are volume change and fluid flow in the rock deformation, and it leads to the LREE relative enrichment and HREE relative loss. |
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| Keywords: | geochemistry REE compositional variation ductile shear zone Hetai gold deposit Guangdong province |
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