Boulders transport by catastrophic waves along the Ionian coast of Apulia (southern Italy)
Boulders transport by catastrophic waves along the Ionian coast of Apulia (southern Italy)
复制标题
沿着普利亚（意大利南部）爱奥尼亚海岸，巨石通过灾难性波浪运输
DOI：
10.1016/s0025-3227(00)00068-2
复制
发表时间：
2000
期刊：
影响因子：
2.9
通讯作者：
P. Sansò
中科院分区：
文献类型：
--
作者：
G. Mastronuzzi;P. Sansò
阿普利亚（意大利南部）的爱奥尼亚海岸的几个区域都有重达80吨的巨石，散布在现在海平面以上数米处。最大的巨石重约80吨，从平均海平面滑动约40米，上升到约1.8米的高度。拉长的巨砾显示出长轴和叠瓦轴的方向范围非常窄，这表明它们是由一个单一的灾难性事件（很可能是海啸）运输的，与从南部接近海岸的波列有关。地层、地貌和历史资料表明，这一事件发生在晚全新世。对从一块大圆石上收集的岩屑壳进行常规放射性碳年龄测定，得出了公元1421年至1568年之间的校准年龄。然后，灾难性的波列，可能是海啸，可能是1456年12月5日袭击意大利南部的强烈地震的局部影响。
Several tracts of the Ionian coast of Apulia (southern Italy) are characterized by large boulders, up to 80t in weight, scattered some meters above present sea level. The largest boulder is about 80t in weight and slid for about 40m from the mean sea level up to about 1.8m of altitude. Elongated boulders show a remarkably narrow range of orientation of the long axis as well as of the imbrication axis, suggesting that they had been transported by a single catastrophic event, most likely a tsunami, connected to a wave train approaching the coast from the South. Stratigraphic, morphological and historical data suggest that this event occurred during the late Holocene. Conventional radiocarbon age determination performed on Lithophag shells collected from a large boulder yielded a calibrated age between 1421 and 1568 A.D. Then, the catastrophic wave train, probably a tsunami, could be a local effect of the strong earthquake which hit southern Italy on December 5th, 1456.