| 广昌付坊花岗岩地质特征及侵位机制 |
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| 引用本文： | 谢明明,冯国胜.广昌付坊花岗岩地质特征及侵位机制[J].江西地质,2000,14(1):21-27. |
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| 作者姓名： | 谢明明 冯国胜 |
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| 作者单位： | 江西省地质调查院!江西南昌330201 |
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| 摘 要： | 付坊花岗岩出露在武夷山西坡中段。在１：５万广昌县幅区调工作中，通过对其岩性、化学万分、结构、构造等演化特征的研究，将其划分为洋背、高洲、胡竹、太和、石咀圩５个单元，归并为一个超单元；根据其Ｕ－Ｐb法同位素年龄确定其侵位时代为晚奥陶世，属加里东造山期岩浆活动的产物；侵位机制属早期底辟、晚期轻气球膨胀强力型主动就位。
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| 关 键 词： | 花岗岩 地质特征 加里东期 侵位机制 广昌县 |
GEOLOGIC FEATURES AND MECHANISM OF EMPLACEMENT OF FUFANG GRANITE IN GUANGCHANG |
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| XIE Ming-ming,FENG Guo-sheng,LIU Yi-hui.GEOLOGIC FEATURES AND MECHANISM OF EMPLACEMENT OF FUFANG GRANITE IN GUANGCHANG[J].Jiangxi Geology,2000,14(1):21-27. |
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| Authors: | XIE Ming-ming FENG Guo-sheng LIU Yi-hui |
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| Abstract: | Fufang granites are exposure in the middle section of the west slop of Wuyi Mountain. Based on regional geological survey at the scale of 1: 50000 over the Guangchang-sheet area and through the studying on the developing feature of their lithological characters, chemical components, texture and structure, they are divided into Yangbei, Gaozhou, Fuzhu, Taihe and Shizhuixu 5 units which are merged one superunit. U-Pb isotopic analysis indicates the emplacement occurring in late Ordovician, which are the products of magmatic activites during the Caledonian orogeny. The mechanism of emplacement is dominated by diapirism in the early stage and by forceful and active emplacement in the form of swelling hydrogen ballon in the late stage. |
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| Keywords: | Fufang granite geologic features Caledonian Period mechanism of emplacement Guangchang county |
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