| 东南沿海末次盛冰期古海平面标志与地震的关系──-100m以下最低海平面问题质疑 |
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| 引用本文： | 徐起浩,黄镇国. 东南沿海末次盛冰期古海平面标志与地震的关系──-100m以下最低海平面问题质疑[J]. 地震地质, 1995, 17(2): 149 |
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| 作者姓名： | 徐起浩 黄镇国 |
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| 作者单位： | 广东省地震局，中国科学院广州地理研究所 |
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| 摘 要： | 东南沿海末次盛冰期（２１～１４ｋａＢ．Ｐ，）滨海相沉积垂相分布多在海拔３８～－５０．８ｍ的范围内，以正向分布（海平面附近及以上）、正负向混合分布及负向（海平面以下）分布在断块交界区或其附近，是强震的主要发生地。在滨海相沉积垂向分布愈离散的区段，其地震活动性也愈强，本研究地区不存在末次盛冰期－１００ｍ以下的最低海平面，那些局部在外陆架海底发现的－１００ｍ以下的滨海相沉积，可能与地壳呈长趋势下沉作用有关
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| 关 键 词： | 海平面变化 冰期 地壳运动 东南沿海 |
ELEVATION DISTRIBUTION OF MARINE SEDIMENTS DURING THE LATEST PREVATEST PREVAIL GLACIAL AGE AND TNEIR RELATIONSHIP TO EARTHQUAKES IN SOUTHEAST CHINA COAST-A QUESTION OF THE LOWEST GLOBAL SEA LEVEL DEEPER THAN 100m |
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| Abstract: | The littoral sediments during the latest prevailing age（21～14kaB.P.）along southeast Chi-na coast aredistributed between 3 8m above sea level and-50m below sea level．There is an evi-dence that strong earthquakes changed the original position of this sediment so that it was dis-persed at different elevations. The degree of dispersion corresponds to the intensity of earth-quake──the more the dispersive marine sediments in elavation，the stronger the earthquakes.Therefore the sea level in that period was not at 100m below the present sea level，i．e.-100m.A subsidence of the crust or earthquakes |
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| Keywords: | Sea-level change Glacial epoch Crustal movement Southeast China coast |
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