| 海南岛西北部莲花山周缘海相地层的区内对比及意义 |
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| 引用本文： | 姚衍桃,詹文欢,孙金龙,刘再峰,詹美珍.海南岛西北部莲花山周缘海相地层的区内对比及意义[J].海洋地质与第四纪地质,2009(3). |
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| 作者姓名： | 姚衍桃 詹文欢 孙金龙 刘再峰 詹美珍 |
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| 作者单位： | 中国科学院边缘海地质重点实验室南海海洋研究所; |
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| 基金项目： | 中国科学院边缘海地质重点实验室开放研究基金项目(MSGL0711);;广东省自然科学资金项目(07004206);;中国科学院海洋地质与环境重点实验室开放课题(MGE2007KG04) |
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| 摘 要： | 根据岩性、产状和地貌等特征,对海南岛西北部莲花山周缘海岸出露的前全新世海相地层5个典型剖面进行区内对比,以恢复该套地层的产出序列,并推测海相地层的分布范围。结合海相地层的沉积时代和莲花山周缘海岸的地貌特征,探讨了该海岸带的地貌演化过程:中更新世以前,有河流自东南向西北经德义岭、莲花山入海,海相地层沉积区属于滨岸环境,是该海岸带当时受海水进退作用的主要区域,接受着波浪从北面、河流从南面带来的沉积物;中更新世至今,受雷琼地区火山活动的影响,河流被隆起的火山锥阻挡而截流或改道,海相地层沉积区则被抬升成为陆地,并在全新世海岸侵蚀作用下,形成了现今宽广的海蚀平台,海岸后退平均速率约为10 cm/a。
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| 关 键 词： | 海相地层 剖面对比 海岸演变 莲花山 海南岛西北部 |
CORRELATION AND IMPLICATION OF MARINE STRATA AROUND LIANHUA MOUNTAIN IN NORTHWEST HAINAN ISLAND |
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| YAO Yantao,ZHAN Wenhuan,SUN Jinlong,LIU Zaifeng,ZHAN Meizhen.CORRELATION AND IMPLICATION OF MARINE STRATA AROUND LIANHUA MOUNTAIN IN NORTHWEST HAINAN ISLAND[J].Marine Geology & Quaternary Geology,2009(3). |
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| Authors: | YAO Yantao ZHAN Wenhuan SUN Jinlong LIU Zaifeng ZHAN Meizhen |
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| Institution: | CAS Key Laboratory of Marginal Sea Geology;South China Sea Institute of Oceanology;Chinese Academy of Sciences;Guangzhou 510301;China |
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| Abstract: | Coast of the northwestern Hainan Island,north of the Wangwu-Wenjiao Fault,has been shaped into a volcanic coast by the middle Pleistocene volcanic eruptions.The formation of the Lianhua Mountain resulted in the uplift and deformation of a set of marine deposits,which by now were the only outcrops of pre-Holocene marine strata in the coastal area of China except for Taiwan.Therefore,researches on these strata might have great implications to understand the evolution of the volcanic coast.Due to strong deform... |
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| Keywords: | marine strata stratigraphic correlation coastal evolution Lianhua Mountain northwest Hainan Island |
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