| 惠东─连县地学断面的地壳结构及性质研究 |
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| 引用本文： | 王祖伟,赵风清,金文山,王官福.惠东─连县地学断面的地壳结构及性质研究[J].华东地质学院学报,1996(2). |
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| 作者姓名： | 王祖伟 赵风清 金文山 王官福 |
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| 作者单位： | 中国科学院广州地球化学研究所，天津地质矿产研究所 |
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| 摘 要： | 本文利用地球物理－地质地球化学相结合的研究方法，分析了惠东─连县地学断面的地球物理特征及其速度密度模型，探讨了断面地壳的物质组成、结构和深部地壳的形成时代，认为该断面地壳的物质组成以长英质为主，断面深部存在太古代地壳，断面的地壳分层主要由变质相相变产生，由麻粒岩相下地壳、高绿片岩相－角闪岩相中地壳，低绿片岩相及沉积盖层组成上地壳的三部分．
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| 关 键 词： | 地学断面 层状构造 地壳 物质组成 深部地壳特征 惠东─连县 广东 |
Structure and Character of Crust in Huidong-Lianxian Geoscience Cross Section |
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| Wang Zhuwei.Structure and Character of Crust in Huidong-Lianxian Geoscience Cross Section[J].Journal of East China Geological Institute,1996(2). |
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| Authors: | Wang Zhuwei |
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| Abstract: | Based on the data of geophysics and geology-geochemistry,the paper discusses the geophysical characteristics, interval velocity and density pattern of cross section.The crustal composition,structure and the forming date of the deep crust are also discussed.It is indicated that Huidong-Lianxian crust mainly consist of felsic rocks,there is Archean crust in its depth.The stratified structure of crust is mainly caused by factes change of metamorphic facies.The crust can be divided into three parts:the lower crust of granulite facies,the middle crust of high greenschist-amphibolites factes and the upper crust of low greenschist facies and sedimentary cover. |
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| Keywords: | geoscience cross section stratified structure composition crust Huidong-Lianxian |
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