| 南秦岭东江口、柞水岩体岩石谱系单位划分及演化 |
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| 引用本文： | 崔建堂,赵长缨,王炬川.南秦岭东江口、柞水岩体岩石谱系单位划分及演化[J].陕西地质,1999(2). |
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| 作者姓名： | 崔建堂 赵长缨 王炬川 |
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| 作者单位： | 陕西地勘局区研院!咸阳712000 |
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| 摘 要： | 南秦岭东江口、柞水岩体位于南丹断裂带南侧，为华力西期岩基。通过1：5万地质填图，将东江口老体划分为5个岩石谱系单位，柞水岩体划分为3个岩石话系单位，共圈定出36个侵入体。分别建立了东江口超单元和排水超单元。依据接触关系，结构构造，包体特征确定了其侵入序次，构成了两个完整的“S”型岩浆演化序列，在岩石矿物组成、岩石化学成分、微量元素及稀土元素组成上，各具有明显的独特岩浆演化特征，分别形成于南秦岭晚古生代被动陆线构造环境。
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| 关 键 词： | 南秦岭 东江口 排水岩体 岩石谱系单位 岩浆演化 |
THE ROCK-LINEAGE UNITS CLASSIFICATION AND EVOLUTION OF DONGJIANGKOU AND ZHASHUI ROCKBODIES IN SOUTHERN QINLING |
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| Cui Jiantang, Zhao Changying, Wang Juchuan.THE ROCK-LINEAGE UNITS CLASSIFICATION AND EVOLUTION OF DONGJIANGKOU AND ZHASHUI ROCKBODIES IN SOUTHERN QINLING[J].Geology of Shaanxi,1999(2). |
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| Authors: | Cui Jiantang Zhao Changying Wang Juchuan |
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| Abstract: | Dongjiangkou and Zhashui rockbodies are located in south side of Shangdan fault zone,which belong to Variscan batholith. Through geological survey of the scale of 1: 50000, fiverock-lineage units of Dongjiangkou rockbody were divided, and thirty-three intrusive bodieswere delineated, Dongjiangkou and Zzhashui ultra-units were established,respectively. According to contact relationship, suture and texture and inclusion features, theintrusive sequence was determinated, which constitute of two compIete "S-type" magmaticevolution successions, formed in the structural setting of Paleozoic passive epicontinent insouthern Qinling, with special magmatic evolution features of mineral composition,lithochemical component, micro-elements and rare earth element composition. |
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| Keywords: | southern Qinling Dongjiangkou Zhashui rockbody rock-lineage unit magmatic evolution |
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