| 阿尔金南缘断裂带球状辉长岩的发现及意义 |
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| 引用本文： | 裴中朝,丁莉,秦爽,曲锦,赵志强.阿尔金南缘断裂带球状辉长岩的发现及意义[J].沉积与特提斯地质,2004,24(1):41-45. |
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| 作者姓名： | 裴中朝 丁莉 秦爽 曲锦 赵志强 |
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| 作者单位： | 河南,地质调查院,河南,郑州,450007 |
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| 基金项目： | 国土资源部区域地质调查项目 (2 0 0 1 1 0 2 0 0 0 6 1 ) |
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| 摘 要： | 本文报道了在新疆阿尔金山南缘断裂带中首次发现的球状辉长岩，及其产出特征与岩石学、地球化学特征。提出球状辉长岩代表了弧后盆地或活动大陆边缘位置，来自消亡洋壳和上覆楔状地幔岩这两种不同源岩组份的混合物。球状辉长岩的岩浆由消亡洋壳熔融直接产生，但熔体在上升达到地表的过程中，与楔状地幔岩发生反应，并加速楔状地幔岩的熔融，同时发生结晶作用和分异作用。
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| 关 键 词： | 阿尔金 球状辉长岩 新疆 |
| 文章编号： | 1009-3850(2004)01-0041-05 |
| 收稿时间： | 2004/2/19 0:00:00 |
The discovery and significance of the corsite in the southern Altun fault, Xinjiang |
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| PEI Zhong-chao,DING Li,QIN Shuang,QU Jin,ZHAO Zhi-qiang.The discovery and significance of the corsite in the southern Altun fault, Xinjiang[J].Sedimentary Geology and Tethyan Geology,2004,24(1):41-45. |
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| Authors: | PEI Zhong-chao DING Li QIN Shuang QU Jin ZHAO Zhi-qiang |
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| Institution: | Henan Institute of Geological Survey, Zhengzhou 450007, Henan, China |
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| Abstract: | The occurrence, petrology and geochemistry are dealt with in details for the corsite identified for the first time in the southern Altun fault, Xinjiang. The corsite appears generally in back-arc basins or on active continental margins as the mixtures derived from the consumed oceanic crust and overlying wedge-shaped (mantle)-derived rocks. The magmas of the corsite resulted from the direct melting of the consumed oceanic crust, and were often reacted with the wedge-shaped mantle-derived rocks during their migration to the surface, (accompanied) by crystallization and differentiation. |
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| Keywords: | Altun corsite Xinjiang |
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