| 西湖凹陷第三纪盆地演化及沉积特征 |
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| 作者姓名： | 陈琳琳 王丽顺 |
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| 作者单位： | 上海海洋石油勘察开发研究院
(陈琳琳，王丽顺)，上海海洋石油勘察开发研究院(黄卫权) |
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| 摘 要： | 第三纪,西湖凹陷经历了弧后盆地、残余弧后盆地至前陆盆地的发展过程。不同盆地类型具有不同的构造格局和构造活动特征。不同的控相机制导致不同的盆地充填方式和沉积特征。本文从弧后扩张、扩张停止及岩浆弧造山作用应力机制出发,讨论了西湖凹陷盆地结构发展过程及其对沉积特征的控制作用。
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| 关 键 词： | 西湖凹陷 第三纪 盆地演化 沉积特征 |
Basmal Evolution and Sedimentary Characteristics in Tertiary Period ,Xihu Sag |
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| Authors: | Ren Zhen Shanghai Civil Defence Geotechnical Investigation Institute |
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| Institution: | Ren Zhen
Shanghai Civil Defence Geotechnical Investigation Institute |
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| Abstract: | Tertiary period,Xihu Sag had experienced basinal evolution from back-arc basin,relict of back - arc basin to foreland basin. Different types of depositional basin held different structure styles and underwent different tectonic acting. Diversity in facies - controlling machnism developing in certain depositional basin led to various basinfill process and litho-logic character. The paper discusses development of basin texture of Xihu Sag and environmental evolution under the setting of back -arc extension,thermal subsidence and magnatic arc orogenic movement in the viewpoint of tectonic strss machnism. |
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| Keywords: | Xihu Sag Tertiary Period Basinal evolutioin Sedimentary characteristics |
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