| 长山群岛和辽东半岛南部的海岸阶地及新构造运动特征 |
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| 引用本文： | 李培英,傅命佐,刘国海,韩慕康.长山群岛和辽东半岛南部的海岸阶地及新构造运动特征[J].海洋与湖沼,1992,23(2):124-132. |
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| 作者姓名： | 李培英 傅命佐 刘国海 韩慕康 |
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| 作者单位： | 国家海洋局第一海洋研究所，国家海洋局第一海洋研究所，辽宁师范大学，北京大学 青岛 266003，青岛 266003，大连 116022，北京 10087l |
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| 基金项目： | 国家地震局地震联合基金资助课题(86协006号) |
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| 摘 要： | 为了排除水动型海平面升降影响,本文根据1981—1987年所获得的资料,应用大海岸阶地综合纵剖面分析法,讨论了长山群岛和辽东半岛南部海岸阶地及其所反映的新构造运动性质。结果表明:第四纪期间,研究区经历了强烈的整体性断块上升运动,区内未发现明显的隆起、凹陷或断层的垂直错动,而是显示了由东南向西北轻微掀斜式的继承性整体构造上升特点。此外,依据第四纪、近代和现代的构造上升速率,认为本区仍保持着新构造上升的总趋势,地震危险程度不大。
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| 关 键 词： | 长山群岛 海岸 阶地 新构造运动 |
MARINE TERRACE AND CHARACTERISTICS OF NEOTECTONIC MOVEMENTS ON THE CHANGSHAN ISLANDS AND THE SOUTHERN LIAODONG PENINSULA |
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| Li Peiying,Fu Mingzuo,Liu Guohai and Han Mukang.MARINE TERRACE AND CHARACTERISTICS OF NEOTECTONIC MOVEMENTS ON THE CHANGSHAN ISLANDS AND THE SOUTHERN LIAODONG PENINSULA[J].Oceanologia Et Limnologia Sinica,1992,23(2):124-132. |
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| Authors: | Li Peiying Fu Mingzuo Liu Guohai and Han Mukang |
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| Abstract: | According to the great synthetical longitudinal profiling of marine terrace and on the basis of regional geomorphic and Quaternary correlation investigated in 1981-1987, the feature of the neotectonic movements on the Changshan Islands and the southern Liaodong peninsula is discussed. The results show that the study area experienced a violent block-uplifting with a slight up-tilting from southeast to northwest during Quaternary period. No apparent upwarping, depressing and vertical fault displacement are found within the study area. The uplifting rate of the area was 0.12mm/a in Quaternary period, 1.18mm/a in the past 5000 years and 3.5mm/a in recent times, reflecting a general trend that the tectonic uplifting gradually speed up with short-term stops. Owing to a lack of great active fault zones with the section of tectonic stress concentration and locking, the study area is considered to be a safe one with out the risk of strong, destructive earthquakes. |
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| Keywords: | Changshan Islands Liaodong Peninsula Marine terrace Neotectonic movements |
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