| Petrology and Petrogenesis of the Eclogite in Mt.Dabie Area,Central China |
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| 作者姓名： | 张建珍 杜建国 |
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| 作者单位： | [1]HebeiCollegeofGeology,Shijiazhuang050031 [2]LanzhouInstituteofGeology,ChineseAcademyofSciences,Lanzhou,7 |
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| 摘 要： | The occurrence,mineralogy and geochemistry of eclogites in the Mt.Dabie area show that they were subjected to a high-pressure metamorphism together with the country rocks,but their petrochemistry and REE geochemistry show some difference from those of the country rocks.The geochemical characteristics of the eclogites are similar to those of bot continental tholeiitic basalt and oceanic tholeiitic basalt.The rocks probably subducted to the upper mantle with the Dabie metamorphic complex.When elevated to the surface,they were subjected to different staes of retrogressive metamorphism.
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| 关 键 词： | 岩石学 地球化学 榴辉岩 大别山 华中地区 稀土元素 |
Petrology and petrogenesis of the eclogite in Mt. Dabie area,central China |
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| Zhang Jianzhen,Du Jianguo,Zhang Youlian,Bai Jinlian,Zhu Xiangdong.Petrology and Petrogenesis of the Eclogite in Mt.Dabie Area,Central China[J].Chinese Journal of Geochemistry,1996,15(3):228-238. |
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| Authors: | Zhang Jianzhen Du Jianguo Zhang Youlian Bai Jinlian Zhu Xiangdong |
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| Institution: | (1) Hebei College of Geology, 050031 Shijiazhuang;(2) Lanzhou Institute of Geology, Chinese Academy of Sciences, 730000 Lanzhou;(3) Lanzhou Center of Books and Information, Chinese Academy of Sciences, 730000 Lanzhou |
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| Abstract: | The occurrence, mineralogy and geochemistry of eclogites in the Mt. Dabie area show that they were subjected to a high-pressure
metamorphism together with the country rocks, but their petrochemistry and REE geochemistry show some difference from those
of the country rocks. The geochemical characteristics of the eclogites are similar to those of both continental tholeiitic
basalt and oceanic tholeiitic basalt. The rocks probably subducted to the upper mantle with the Dabie metamorphic complex.
When elevated to the surface, they were subjected to different stages of retrogressive metamorphism.
The project (49273185) was supported by the National Natural Science Foundation of China. |
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| Keywords: | petrology geochemistry eclogite Mt Dabie |
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