Indonesian Throughflow as a preconditioning mechanism for submarine landslides in the Makassar Strait
Indonesian Throughflow as a preconditioning mechanism for submarine landslides in the Makassar Strait
复制标题
印度尼西亚通流作为望加锡海峡海底滑坡的预处理机制
DOI:
10.1144/sp500-2019-171
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Brackenridge R
中科院分区:
文献类型:
--
作者:
Brackenridge R
The Makassar Strait is an important oceanic gateway, through which the main branch of the Indonesian Throughflow (ITF) transports water from the Pacific to the Indian Ocean. This study identifies a number of moderate (> 10 km 3) to giant (up to 650 km 3) mass transport deposits within the Makassar North Basin Pleistocene–Recent section. The majority of submarine landslides that formed these deposits originated from the Mahakam pro-delta, with the largest skewed to the south. We see clear evidence for ocean-current erosion, lateral transport and contourite deposition across the upper slope. This suggests that the ITF is acting as an along-slope conveyor belt, transporting sediment to the south of the delta, where rapid sedimentation rates and slope oversteepening results in recurring submarine landslides. A frequency for the> 100 km 3 failures is tentatively proposed at 0.5 Ma, with smaller events occurring at least every 160 ka. This area is therefore potentially prone to tsunamis generated from these submarine landslides. We identify a disparity between historical fault rupture-triggered tsunamis (located along the Palu-Koro fault zone) and the distribution of mass transport deposits in the subsurface. If these newly identified mass failures are tsunamigenic, they may represent a previously overlooked hazard in the region.
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影响因子:
2.9
作者:
R. Davies;M. Ireland
通讯作者:
M. Ireland
DOI:
10.1016/s0070-4571(08)10009-7
发表时间:
2008
期刊:
Developments in sedimentology
影响因子:
--
作者:
D. Stow;Sally E. Hunter;D. Wilkinson;F. Hernández‐Molina
通讯作者:
D. Stow;Sally E. Hunter;D. Wilkinson;F. Hernández‐Molina
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
K. B. Plants;S. Wen;J. Wimsatt;S. Knox
通讯作者:
S. Knox
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
E. Okal;C. Synolakis
通讯作者:
C. Synolakis
影响因子:
2.2
作者:
S. Bondevik;J. Svendsen;G. Johnsen;J. Mangerud;P. Kaland
通讯作者:
P. Kaland