| 桂东超单元花岗岩各单元特征及其归属探讨 |
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| 引用本文： | 吴俊华,彭志新.桂东超单元花岗岩各单元特征及其归属探讨[J].湖南地质,1993,12(4):226-230. |
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| 作者姓名： | 吴俊华 彭志新 |
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| 作者单位： | 江西省地质研究所，江西省地质研究所，湖南省地质研究所 南昌向塘 330201，南昌向塘 330201，长沙 410007 |
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| 摘 要： | 通过对桂东超单元各单元特征的对比,我们认为桂东超单元包括了两类不同地质、岩石、矿物学及地球化学特征的花岗岩,进而探讨了这两类花岗岩的成因及其形成构造环境,得出牛塘、三洞两单元为1型花岗岩,形成于板块碰撞的环境,大塘、寨前、子公坑、五峰仙单元为S型花岗岩,形成于陆一陆同碰环境。建议将牛塘、三洞两单元建立桂东序列,其余四单元归属江西汤湖超单元。
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| 关 键 词： | 花岗岩 单元归属 地球化学 地质学 |
Characteristics of single granite units of Guidong superunit and Discussion on their Classification |
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| Wu Junhua Pen Zhixin.Characteristics of single granite units of Guidong superunit and Discussion on their Classification[J].Hunan Geology,1993,12(4):226-230. |
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| Authors: | Wu Junhua Pen Zhixin |
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| Affiliation: | Wu Junhua Pen Zhixin (Institute of Geological Science of Jiangxi)Xing Xudong (Hunan Institute of Geology) |
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| Abstract: | Through comparison With the characteristics of single granite units of Guidong supe-runit, two categories of granite with different characters of geology, mineralogy, petrology and geochemistry in Guidong superunit are recognized and a discussion is made on their genesis and tec-tonic envivonment where they form. Niutang and Shandong units are I-type granites produced in the setting of pre-collision of plates and Tatang, Zaiqian, Zigongken and wufongwian units are S-type granites formed in the zone of intercontinental collision. Suggestions are put forward that Niutang and Shandong units are the parts constructing Guidong superunit and the other four be-long to Tanghu superunit. |
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| Keywords: | granite classification of units geology and geochemistry Guidong |
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