Late Miocene wood recovered in Bengal–Nicobar submarine fan sediments by IODP Expedition 362
Late Miocene wood recovered in Bengal–Nicobar submarine fan sediments by IODP Expedition 362
复制标题
IODP 362 号探险队在孟加拉-尼科巴海底扇沉积物中发现的晚中新世木材
DOI：
10.5194/sd-27-49-2020
复制
发表时间：
2020
影响因子：
1.2
通讯作者：
J. Francis
中科院分区：
文献类型：
--
作者：
L. McNeill;B. Dugan;K. Petronotis;K. Milliken;J. Francis
抽象的。东印度洋IODP 362探险期间的钻探和取心
遇到了可能是科学界有史以来发现的最大的木材碎片
海洋钻探。该木材的时代为中新世晚期，埋在下面
∼800 m孟加拉-尼科巴硅质碎屑泥和沙
扇子。这块木头保存得很好。可能的起源包括腹地到
北部，沉积物作为海底扇沉积的一部分被输送
过程，或东面的舜他俯冲带，可能是一个
巨型逆冲海啸堆积物。
Abstract. Drilling and coring during IODP Expedition 362 in the eastern Indian Ocean
encountered probably the largest wood fragment ever recovered in scientific
ocean drilling. The wood is Late Miocene in age and buried beneath
∼800 m of siliciclastic mud and sand of the Bengal–Nicobar
Fan. The wood is well preserved. Possible origins include the hinterland to
the north, with sediment transported as part of the submarine fan sedimentary
processes, or the Sunda subduction zone to the east, potentially as a
megathrust tsunami deposit.