Understanding Himalayan erosion and the significance of the Nicobar Fan

Lisa C. McNeill, Brandon Dugan, Jan Backman, Kevin T. Pickering, Hugo F.A. Pouderoux, Timothy J. Henstock, Katerina E. Petronotis, Andrew Carter, Farid Chemale, Kitty L. Milliken, Steffen Kutterolf, Hideki Mukoyoshi, Wenhuang Chen, Sarah Kachovich, Freya L. Mitchison, Sylvain Bourlange, Tobias A. Colson, Marina C.G. Frederik, Gilles Guèrin, Mari Hamahashi & 15 others Brian M. House, Andre Hüpers, Tamara N. Jeppson, Abby R. Kenigsberg, Mebae Kuranaga, Nisha Nair, Satoko Owari, Yehua Shan, Insun Song, Marta E. Torres, Paola Vannucchi, Peter J. Vrolijk, Tao Yang, Xixi Zhao, Ellen Thomas

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A holistic view of the Bengal–Nicobar Fan system requires sampling the full sedimentary section of the Nicobar Fan, which was achieved for the first time by International Ocean Discovery Program (IODP) Expedition 362 west of North Sumatra. We identified a distinct rise in sediment accumulation rate (SAR) beginning ∼9.5 Ma and reaching 250–350 m/Myr in the 9.5–2 Ma interval, which equal or far exceed rates on the Bengal Fan at similar latitudes. This marked rise in SAR and a constant Himalayan-derived provenance necessitates a major restructuring of sediment routing in the Bengal–Nicobar submarine fan. This coincides with the inversion of the Eastern Himalayan Shillong Plateau and encroachment of the west-propagating Indo–Burmese wedge, which reduced continental accommodation space and increased sediment supply directly to the fan. Our results challenge a commonly held view that changes in sediment flux seen in the Bengal–Nicobar submarine fan were caused by discrete tectonic or climatic events acting on the Himalayan–Tibetan Plateau. Instead, an interplay of tectonic and climatic processes caused the fan system to develop by punctuated changes rather than gradual progradation.

Original languageEnglish
Pages (from-to)134-142
Number of pages9
JournalEarth and Planetary Science Letters
Volume475
DOIs
Publication statusPublished - 1 Oct 2017

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Fans
erosion
Erosion
Sediments
sediments
submarine fan
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accumulation rate
Tectonics
plateau
tectonics
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routing
expeditions
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McNeill, L. C., Dugan, B., Backman, J., Pickering, K. T., Pouderoux, H. F. A., Henstock, T. J., ... Thomas, E. (2017). Understanding Himalayan erosion and the significance of the Nicobar Fan. Earth and Planetary Science Letters, 475, 134-142. https://doi.org/10.1016/j.epsl.2017.07.019
McNeill, Lisa C. ; Dugan, Brandon ; Backman, Jan ; Pickering, Kevin T. ; Pouderoux, Hugo F.A. ; Henstock, Timothy J. ; Petronotis, Katerina E. ; Carter, Andrew ; Chemale, Farid ; Milliken, Kitty L. ; Kutterolf, Steffen ; Mukoyoshi, Hideki ; Chen, Wenhuang ; Kachovich, Sarah ; Mitchison, Freya L. ; Bourlange, Sylvain ; Colson, Tobias A. ; Frederik, Marina C.G. ; Guèrin, Gilles ; Hamahashi, Mari ; House, Brian M. ; Hüpers, Andre ; Jeppson, Tamara N. ; Kenigsberg, Abby R. ; Kuranaga, Mebae ; Nair, Nisha ; Owari, Satoko ; Shan, Yehua ; Song, Insun ; Torres, Marta E. ; Vannucchi, Paola ; Vrolijk, Peter J. ; Yang, Tao ; Zhao, Xixi ; Thomas, Ellen. / Understanding Himalayan erosion and the significance of the Nicobar Fan. In: Earth and Planetary Science Letters. 2017 ; Vol. 475. pp. 134-142.
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abstract = "A holistic view of the Bengal–Nicobar Fan system requires sampling the full sedimentary section of the Nicobar Fan, which was achieved for the first time by International Ocean Discovery Program (IODP) Expedition 362 west of North Sumatra. We identified a distinct rise in sediment accumulation rate (SAR) beginning ∼9.5 Ma and reaching 250–350 m/Myr in the 9.5–2 Ma interval, which equal or far exceed rates on the Bengal Fan at similar latitudes. This marked rise in SAR and a constant Himalayan-derived provenance necessitates a major restructuring of sediment routing in the Bengal–Nicobar submarine fan. This coincides with the inversion of the Eastern Himalayan Shillong Plateau and encroachment of the west-propagating Indo–Burmese wedge, which reduced continental accommodation space and increased sediment supply directly to the fan. Our results challenge a commonly held view that changes in sediment flux seen in the Bengal–Nicobar submarine fan were caused by discrete tectonic or climatic events acting on the Himalayan–Tibetan Plateau. Instead, an interplay of tectonic and climatic processes caused the fan system to develop by punctuated changes rather than gradual progradation.",
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McNeill, LC, Dugan, B, Backman, J, Pickering, KT, Pouderoux, HFA, Henstock, TJ, Petronotis, KE, Carter, A, Chemale, F, Milliken, KL, Kutterolf, S, Mukoyoshi, H, Chen, W, Kachovich, S, Mitchison, FL, Bourlange, S, Colson, TA, Frederik, MCG, Guèrin, G, Hamahashi, M, House, BM, Hüpers, A, Jeppson, TN, Kenigsberg, AR, Kuranaga, M, Nair, N, Owari, S, Shan, Y, Song, I, Torres, ME, Vannucchi, P, Vrolijk, PJ, Yang, T, Zhao, X & Thomas, E 2017, 'Understanding Himalayan erosion and the significance of the Nicobar Fan' Earth and Planetary Science Letters, vol. 475, pp. 134-142. https://doi.org/10.1016/j.epsl.2017.07.019

Understanding Himalayan erosion and the significance of the Nicobar Fan. / McNeill, Lisa C.; Dugan, Brandon; Backman, Jan; Pickering, Kevin T.; Pouderoux, Hugo F.A.; Henstock, Timothy J.; Petronotis, Katerina E.; Carter, Andrew; Chemale, Farid; Milliken, Kitty L.; Kutterolf, Steffen; Mukoyoshi, Hideki; Chen, Wenhuang; Kachovich, Sarah; Mitchison, Freya L.; Bourlange, Sylvain; Colson, Tobias A.; Frederik, Marina C.G.; Guèrin, Gilles; Hamahashi, Mari; House, Brian M.; Hüpers, Andre; Jeppson, Tamara N.; Kenigsberg, Abby R.; Kuranaga, Mebae; Nair, Nisha; Owari, Satoko; Shan, Yehua; Song, Insun; Torres, Marta E.; Vannucchi, Paola; Vrolijk, Peter J.; Yang, Tao; Zhao, Xixi; Thomas, Ellen.

In: Earth and Planetary Science Letters, Vol. 475, 01.10.2017, p. 134-142.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Understanding Himalayan erosion and the significance of the Nicobar Fan

AU - McNeill, Lisa C.

AU - Dugan, Brandon

AU - Backman, Jan

AU - Pickering, Kevin T.

AU - Pouderoux, Hugo F.A.

AU - Henstock, Timothy J.

AU - Petronotis, Katerina E.

AU - Carter, Andrew

AU - Chemale, Farid

AU - Milliken, Kitty L.

AU - Kutterolf, Steffen

AU - Mukoyoshi, Hideki

AU - Chen, Wenhuang

AU - Kachovich, Sarah

AU - Mitchison, Freya L.

AU - Bourlange, Sylvain

AU - Colson, Tobias A.

AU - Frederik, Marina C.G.

AU - Guèrin, Gilles

AU - Hamahashi, Mari

AU - House, Brian M.

AU - Hüpers, Andre

AU - Jeppson, Tamara N.

AU - Kenigsberg, Abby R.

AU - Kuranaga, Mebae

AU - Nair, Nisha

AU - Owari, Satoko

AU - Shan, Yehua

AU - Song, Insun

AU - Torres, Marta E.

AU - Vannucchi, Paola

AU - Vrolijk, Peter J.

AU - Yang, Tao

AU - Zhao, Xixi

AU - Thomas, Ellen

PY - 2017/10/1

Y1 - 2017/10/1

N2 - A holistic view of the Bengal–Nicobar Fan system requires sampling the full sedimentary section of the Nicobar Fan, which was achieved for the first time by International Ocean Discovery Program (IODP) Expedition 362 west of North Sumatra. We identified a distinct rise in sediment accumulation rate (SAR) beginning ∼9.5 Ma and reaching 250–350 m/Myr in the 9.5–2 Ma interval, which equal or far exceed rates on the Bengal Fan at similar latitudes. This marked rise in SAR and a constant Himalayan-derived provenance necessitates a major restructuring of sediment routing in the Bengal–Nicobar submarine fan. This coincides with the inversion of the Eastern Himalayan Shillong Plateau and encroachment of the west-propagating Indo–Burmese wedge, which reduced continental accommodation space and increased sediment supply directly to the fan. Our results challenge a commonly held view that changes in sediment flux seen in the Bengal–Nicobar submarine fan were caused by discrete tectonic or climatic events acting on the Himalayan–Tibetan Plateau. Instead, an interplay of tectonic and climatic processes caused the fan system to develop by punctuated changes rather than gradual progradation.

AB - A holistic view of the Bengal–Nicobar Fan system requires sampling the full sedimentary section of the Nicobar Fan, which was achieved for the first time by International Ocean Discovery Program (IODP) Expedition 362 west of North Sumatra. We identified a distinct rise in sediment accumulation rate (SAR) beginning ∼9.5 Ma and reaching 250–350 m/Myr in the 9.5–2 Ma interval, which equal or far exceed rates on the Bengal Fan at similar latitudes. This marked rise in SAR and a constant Himalayan-derived provenance necessitates a major restructuring of sediment routing in the Bengal–Nicobar submarine fan. This coincides with the inversion of the Eastern Himalayan Shillong Plateau and encroachment of the west-propagating Indo–Burmese wedge, which reduced continental accommodation space and increased sediment supply directly to the fan. Our results challenge a commonly held view that changes in sediment flux seen in the Bengal–Nicobar submarine fan were caused by discrete tectonic or climatic events acting on the Himalayan–Tibetan Plateau. Instead, an interplay of tectonic and climatic processes caused the fan system to develop by punctuated changes rather than gradual progradation.

KW - Asian monsoon

KW - Bengal–Nicobar Fan

KW - Himalayan tectonics

KW - Indian Ocean

KW - submarine fan

UR - http://www.scopus.com/inward/record.url?scp=85027282699&partnerID=8YFLogxK

U2 - 10.1016/j.epsl.2017.07.019

DO - 10.1016/j.epsl.2017.07.019

M3 - Article

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JO - Earth & Planetary Science Letters

JF - Earth & Planetary Science Letters

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McNeill LC, Dugan B, Backman J, Pickering KT, Pouderoux HFA, Henstock TJ et al. Understanding Himalayan erosion and the significance of the Nicobar Fan. Earth and Planetary Science Letters. 2017 Oct 1;475:134-142. https://doi.org/10.1016/j.epsl.2017.07.019