| 再论华南（东）晋宁－加里东海盆地形成、演化及封闭 |
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| 引用本文： | 余达淦.再论华南（东）晋宁－加里东海盆地形成、演化及封闭[J].安徽地质,1994(Z1). |
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| 作者姓名： | 余达淦 |
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| 作者单位： | 华东地质学院 |
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| 摘 要： | 华南（东）晋宁－加里东海盆地形成于青白口纪，经历了晋宁期，加里东早期及加里东晚期３个演化阶段。海盆地基底为陆壳，形成于拉伸的裂谷环境，海盆地的封闭以陆内俯冲及拼贴为主，具多阶段性。海盆地基底，特别是华夏地块基底高热值属性导致了加里东海盆地有湘桂海盆地和赣闽粤海盆地２种类型，后者位于华夏基底之上，活动性明显，形成数条陆内动力热流变质带。
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| 关 键 词： | 晋宁旋回，加里东运动，华夏地块，裂谷环境，陆内造山 |
REVIEW ON THE FORMATION, EVOLUTION AND CLOSURE OF THE JINING-CALEDONIAN SEA BASIN IN THE EASTERN PART OF SOUTH CHINA |
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| Yu Dagan.REVIEW ON THE FORMATION, EVOLUTION AND CLOSURE OF THE JINING-CALEDONIAN SEA BASIN IN THE EASTERN PART OF SOUTH CHINA[J].Geology of Anhui,1994(Z1). |
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| Authors: | Yu Dagan |
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| Institution: | East China Geological Institute |
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| Abstract: | The Jinning-Caledonian sea basin in the eastern part of South China was formed in the Qingbeikou periedand experienced three stages of Jinning,early and late Caledonian perieds. The basement of the sea basin was continentalcrust formed in a stretching rift environment. The closure of the sea basin mainly underwent intracontinental underthrustand splice, and was of multistage characters. The high calorific value of the beement of sca basin,especinlly the basementof the Huaxia block,led to the formation of two types of sea basins in the Caledonian,the Xianggui(Hunan andGuizhou)and Ganminyue (Jiangxi,Fujian and Guangdong) sea basins.The basement of the latter is evident in activity,lying over the basement of the Huaxia block , in which there are several intracontinental dynamo-hydrothermal metamor-phic zones. |
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| Keywords: | Jinning cycle Caledonian Movement Huaxia block rift environment intracontinental orogeny |
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