| Confirmation and Preliminary Study of Aluminous A—Type Granites in the Wuyi Mountain Area,Eastern Jiangxi Province,China |
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| 引用本文： | 楼法生,崔学军,黄志忠.Confirmation and Preliminary Study of Aluminous A—Type Granites in the Wuyi Mountain Area,Eastern Jiangxi Province,China[J].中国地球化学学报,2002,21(4):362-369. |
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| 作者姓名： | 楼法生 崔学军 黄志忠 |
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| 作者单位： | 楼法生(Department of Earth Sciences, Nanjing University, Nanjing 210093, China;Department of Earth Sciences, Nanjing University, Nanjing 210093, China);崔学军,黄志忠(Department of Earth Sciences, Nanjing University, Nanjing 210093, China) |
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| 摘 要： |
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| 关 键 词： | A型花岗岩 地球化学 武夷山 江西 岩石学 地质成因 |
Confirmation and preliminary study of aluminous A-type granites in the Wuyi Mountain area, Eastern Jiangxi Province, China |
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| Lou Fasheng,Cui Xuejun,Huang Zhizhong.Confirmation and preliminary study of aluminous A-type granites in the Wuyi Mountain area, Eastern Jiangxi Province, China[J].Chinese Journal of Geochemistry,2002,21(4):362-369. |
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| Authors: | Lou Fasheng Cui Xuejun Huang Zhizhong |
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| Institution: | (1) Department of Earth Sciences, Nanjing University, 210093 Nanjing, China;(2) Geological Survey of Jiangxi Province, 330201 Xiangtang, China |
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| Abstract: | Widespread in the Wuyi Mountain area of eastern Jiangxi are petrochemically peraluminous granites and they are characterized
as being high in silica (SiO2 > 75% ) and highly alkaline (ALK=6.9% -7.5%) with K2O > Na2O and rather high ratios of FeOT/MgO (11.3-17.9). The rocks have low contents of CaO, MgO, TiO2 and P2 O5. The granites are enriched in REE (ΣREE =210.3 - 496. 8 μg/g) with remarkable negative Eu anomalies, but depleted in Eu,
Ba, Sr, V, Co, and Ni, with 10000 x Ga/Al ratios, varying from 6. 1 to 9. 8. It is clear that these granites are obviously
different from the I- and S-type granites, but are quite similar to those typical A-type granites such as aluminous A-type
granites in the coastal areas of Fujian Province.
State Geological Survey Project: supported by the Regional Geological Survey Project (No: 20001300002091 ) on the basis of
the maps (scale 1: 250000) of Jingdezheng City, Nanchang City and Shangrao City. |
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| Keywords: | aluminous A-type granite geochemistry Wuyi Mountain Jiangxi Province |
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