| 广东台山淤泥质海岸高分辨率地震资料解释 |
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| 引用本文： | 刘海龄,吴时国,魏常兴,杨树康,陈丽虹. 广东台山淤泥质海岸高分辨率地震资料解释[J]. 热带海洋学报, 1999, 18(2): 36 |
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| 作者姓名： | 刘海龄 吴时国 魏常兴 杨树康 陈丽虹 |
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| 作者单位： | 中国科学院南海海洋研究所,广州,510301 |
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| 基金项目： | 中国科学院广州分院院长基金!GY970401 |
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| 摘 要： | 根据广东台山广海湾150km高分辨率地震资料，研究岬湾型海岸起伏多变的基底和上覆的第四纪沉积层序、沉积演化以及复杂的新构造作用。该区晚第四纪自下而上发育有5个层序：（1）滨海相杂色粘土，下部为河道充填；（2）河道冲积砂；（3）内大陆架粉砂质粘土；（4）滨海相潮坪沉积;（5）河口湾淤泥质沉积。研究区基底形态起伏较大，主要为黑云母花岗岩风化壳及少量变质岩。NNE和NEE向两组断裂系统最为发育，它们控制了盆地发展并经历了两期活动。
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| 关 键 词： | 地震资料 地层层序 环境工程地质 淤泥质海岸 |
INTERPRETATION ON HIGH-RESOLUTION SEISMIC SURVEY DATA ALONG MUD COAST OF TAISHAN, GUANGDONG |
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| Liu Hailing,Wu Shiguo,Wei Changxing,Yang Shukang,Chen Lihong. INTERPRETATION ON HIGH-RESOLUTION SEISMIC SURVEY DATA ALONG MUD COAST OF TAISHAN, GUANGDONG[J]. Journal of Tropical Oceanography, 1999, 18(2): 36 |
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| Authors: | Liu Hailing Wu Shiguo Wei Changxing Yang Shukang Chen Lihong |
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| Abstract: | Seismic stratigraphy analysis on high-resolution seismic profiles along themud coast of Taishan, Guangdong, with total length of 150km, has been carried outto research the rugged basement overlying Quaternary sediments, sedimentaryevolution and complex neotectonic process. Five stratigraphic sequences since lateQuaternary have been revealed from bottom to top: (1) Pleistocene alluvial silty sandand shallow sea clay sediments; (2) fluvial channel coarse sand sediments, (3)nearshore silty clay bedded silty sand sediments, (4) shallow tidal silty clay sediments;(5) nearshore and bay clay sediments. The basement undulates greatly, mainlyconsisting of granitite weathering crust and a little metamorphic rocks. Two kinds offault systems develope in the studied area, which have experienced two stages ofmovement and controlled the evolution of the basin. |
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| Keywords: | high-resolution seismic data stratigraphic sequence environment engineering geology mud coast |
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