IODP 362考察队在Bengal-Nicobar海底扇沉积物中发现晚中新世木材

IF 1.6 Q3 GEOSCIENCES, MULTIDISCIPLINARY Scientific Drilling Pub Date : 2020-05-27 DOI:10.5194/sd-27-49-2020

L. McNeill, B. Dugan, K. Petronotis, K. Milliken, J. Francis

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引用次数: 2

摘要

摘要在东印度洋的IODP 362考察队进行钻探和取芯时，遇到了可能是科学海洋钻探中发现的最大的木材碎片。这些木材的年代为晚中新世，埋在Bengal-NicobarFan的约800 m的硅塑性泥和砂下。木头保存得很好。可能的起源包括北部的内陆地区，沉积物作为海底扇沉积过程的一部分被输送，或者东部的巽他俯冲带，可能是巨型逆冲海啸沉积。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Late Miocene wood recovered in Bengal–Nicobar submarine fan sediments by IODP Expedition 362

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.

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