V. Lykousis, G. Rousakis, P. Pavlakis, M. Alexandri
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引用次数: 0
摘要
在爱琴海的连续地震(气枪)海底剖面揭示了一个巨大的潜艇平移滑动。破坏区从深度约300米延伸至800米，面积约85 Km2。滑块的平均厚度约为55 m，估计第四纪沉积物的总积为4 Km3，沿6至7 Km的距离滑动。声反射层的年代地层分析表明，滑面为晚更新世(170 ~ 240 Ka BP)的泥质层。沉积物岩心的AMS测年表明，这次主要滑动事件发生在5 ~ 6 Ka BP。
Stratigraphy and dating of a large slumping event in the Northern Aegean
Continuous seismic (Air-Gun) subbotom profiling in the N.Aegean was revealed a large submarine translational slide. The failure zone is extended from about 300m depth down to 800 m and covers an area of 85 Km2. The mean thickness of the slide reaches about 55 m and an estimated total volume of 4 Km3 of Quaternary sediments have been slided along a distance of 6 to 7 Km. Chronostratigraphic analysis of the acoustic reflectors imply that the slide plane is the muddy layer of late Pleistocene age (170-240 Ka BP). AMS dating of sediment cores provided indications that this major slide event occurred 5 to 6 Ka BP.
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