| 柞水原划泥盆系中发现早前寒武纪变质岩系 |
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| 引用本文： | 崔建堂,赵长樱,计文华.柞水原划泥盆系中发现早前寒武纪变质岩系[J].陕西地质,1998(2). |
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| 作者姓名： | 崔建堂 赵长樱 计文华 |
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| 作者单位： | 陕西地勘局区研院!咸阳，712000，陕西地勘局区研院!咸阳，712000，陕西地勘局区研院!咸阳，712000 |
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| 摘 要： | 本文阐述了作者在1：5万区调填图中，从柞水地区商丹断裂带南侧原划泥盆系刘岭群桐峪寺组中解体出前寒武纪中深变质岩系，取得了同位素全岩Sm－Nd年龄平均值2499．83Ma的数据，这对研究秦岭造山带的演化具有重要的地质意义。
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| 关 键 词： | 柞水 泥盆系刘岭群 早前寒武纪 中深变质岩系 |
EARLY PRE-CAMBRIAN METAMORPHIC ROCK SERIES HAVE BEEN RECOGNIZED IN PRIMARY DEVONIAN SYSTEM,ZHASHUI, SHAANXI |
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| Cui Jiantang, Zhao Changying, Ji Wenhua.EARLY PRE-CAMBRIAN METAMORPHIC ROCK SERIES HAVE BEEN RECOGNIZED IN PRIMARY DEVONIAN SYSTEM,ZHASHUI, SHAANXI[J].Geology of Shaanxi,1998(2). |
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| Authors: | Cui Jiantang Zhao Changying Ji Wenhua |
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| Abstract: | According to the regional geological survey (1: 50 000), the middle-bypozonal metamorphic rock series of pre-Cambrian are separated from Tongyusi formation of Liuling group in the primary Devonian, in the sourthern Zhashui-Shangdan fault belt. The isotope age of 2499. 83Ma (average) (Sm-Nd) is obtained, which has an important geological significance in the understanding of the evolution of orogenic belt in Qinling mountain. |
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| Keywords: | Zhashui county Liuling group of Devonian system early pre-Cambrian middle-hypozonal metamorphic rock series |
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