TSUNAMI SEDIMENTATION ASSOCIATED WITH THE LISBON EARTHQUAKE OF 1 NOVEMBER AD-1755 - BOCA-DO-RIO, ALGARVE, PORTUGAL
TSUNAMI SEDIMENTATION ASSOCIATED WITH THE LISBON EARTHQUAKE OF 1 NOVEMBER AD-1755 - BOCA-DO-RIO, ALGARVE, PORTUGAL
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DOI：
10.1177/095968369500500208
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发表时间：
1995-01-01
期刊：
影响因子：
2.4
通讯作者：
BATEMAN, M
中科院分区：
文献类型：
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作者：
DAWSON, AG;HINDSON, R;BATEMAN, M
描述了葡萄牙阿尔加维海岸博卡多里奥的独特海洋沉积物。这里提出沉积物堆积是由公元 1755 年 11 月 1 日里斯本地震引发的海啸沉积的。该沉积物表现出的沉积特征与其他由更温和的波浪状态沉积的沿海沉积物堆积物完全不同。其中包括横向连续的沙层、混乱的卵石层、大量砾石大小的贝壳碎片和独特的海洋微化石组合。本文初步尝试使用现场经验和实验室数据来更清楚地定义表征海啸爆发的沿海沉积过程。还讨论了使用海啸沉积物作为时间同步标记层位。
A description is given of a distinctive marine deposit at Boca do Rio on the Algarve coast of Portugal. It is proposed here that the sediment accumulation was deposited by the tsunami generated by the Lisbon earthquake of 1 November, AD 1755. The deposit exhibits sedimentary characteristics quite unlike other coastal sediment accumulations that are deposited by more moderate wave regimes. These include laterally continuous sand layers, chaotic pebble horizons, large amounts of gravel-sized shell debris and distinctive assemblages of marine microfossils. A preliminary attempt is made here to use the empirical field and laboratory data to define more clearly the processes of coastal sedimentation that characterize tsunami runup. The use of tsunami sediments as time synchronous marker horizons is also discussed.