Relative sea-level rise around East Antarctica during Oligocene glaciation

Paolo Stocchi; Carlota Escutia; Alexander J.P. Houben; Bert L.A. Vermeersen; Peter K. Bijl; Henk Brinkhuis; Robert M. DeConto; Simone Galeotti; Sandra Passchier; David Pollard; Adam Klaus; Annick Fehr; Trevor Williams; James A.P. Bendle; Steven M. Bohaty; Stephanie A. Carr; Robert B. Dunbar; Jose Abel Flores; Jhon J. Gonzàlez; Travis G. Hayden; Masao Iwai; Francisco J. Jimenez-Espejo; Kota Katsuki; Gee Soo Kong; Robert M. McKay; Mutsumi Nakai; Matthew P. Olney; Stephen F. Pekar; Jörg Pross; Christina Riesselman; Ursula Röhl; Toyosaburo Sakai; Prakash Kumar Shrivastava; Catherine E. Stickley; Saiko Sugisaki; Lisa Tauxe; Shouting Tuo; Tina Van De Flierdt; Kevin Welsh; Masako Yamane

doi:10.1038/NGEO1783

Relative sea-level rise around East Antarctica during Oligocene glaciation

Paolo Stocchi, Carlota Escutia, Alexander J.P. Houben, Bert L.A. Vermeersen, Peter K. Bijl, Henk Brinkhuis, Robert M. DeConto, Simone Galeotti, Sandra Passchier, David Pollard, Adam Klaus, Annick Fehr, Trevor Williams, James A.P. Bendle, Steven M. Bohaty, Stephanie A. Carr, Robert B. Dunbar, Jose Abel Flores, Jhon J. Gonzàlez, Travis G. HaydenMasao Iwai, Francisco J. Jimenez-Espejo, Kota Katsuki, Gee Soo Kong, Robert M. McKay, Mutsumi Nakai, Matthew P. Olney, Stephen F. Pekar, Jörg Pross, Christina Riesselman, Ursula Röhl, Toyosaburo Sakai, Prakash Kumar Shrivastava, Catherine E. Stickley, Saiko Sugisaki, Lisa Tauxe, Shouting Tuo, Tina Van De Flierdt, Kevin Welsh, Masako Yamane

Earth and Environmental Studies

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53 Scopus citations

Abstract

During the middle and late Eocene (∼48-34 Myr ago), the Earth's climate cooled_1,2 and an ice sheet built up on Antarctica. The stepwise expansion of ice on Antarctica_3,4induced crustal deformation and gravitational perturbations around the continent. Close to the ice sheet, sea level rose_5,6despite an overall reduction in the mass of the ocean caused by the transfer of water to the ice sheet. Here we identify the crustal response to ice-sheet growth by forcing a glacial-hydro isostatic adjustment model₇ with an Antarctic ice-sheet model. We find that the shelf areas around East Antarctica first shoaled as upper mantle material upwelled and a peripheral forebulge developed. The inner shelf subsequently subsided as lithosphere flexure extended outwards from the ice-sheet margins. Consequently the coasts experienced a progressive relative sea-level rise. Our analysis of sediment cores from the vicinity of the Antarctic ice sheet are in agreement with the spatial patterns of relative sea-level change indicated by our simulations. Our results are consistent with the suggestion₈ that near-field processes such as local sea-level change influence the equilibrium state obtained by an icesheet grounding line.

Original language	English
Pages (from-to)	380-384
Number of pages	5
Journal	Nature Geoscience
Volume	6
Issue number	5
DOIs	https://doi.org/10.1038/NGEO1783
State	Published - May 2013

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Stocchi, P., Escutia, C., Houben, A. J. P., Vermeersen, B. L. A., Bijl, P. K., Brinkhuis, H., DeConto, R. M., Galeotti, S., Passchier, S., Pollard, D., Klaus, A., Fehr, A., Williams, T., Bendle, J. A. P., Bohaty, S. M., Carr, S. A., Dunbar, R. B., Flores, J. A., Gonzàlez, J. J., ... Yamane, M. (2013). Relative sea-level rise around East Antarctica during Oligocene glaciation. Nature Geoscience, 6(5), 380-384. https://doi.org/10.1038/NGEO1783

@article{83f8522900484600bf251ad4bb0c5d79,

title = "Relative sea-level rise around East Antarctica during Oligocene glaciation",

abstract = "During the middle and late Eocene (∼48-34 Myr ago), the Earth's climate cooled1,2 and an ice sheet built up on Antarctica. The stepwise expansion of ice on Antarctica3,4induced crustal deformation and gravitational perturbations around the continent. Close to the ice sheet, sea level rose5,6despite an overall reduction in the mass of the ocean caused by the transfer of water to the ice sheet. Here we identify the crustal response to ice-sheet growth by forcing a glacial-hydro isostatic adjustment model7 with an Antarctic ice-sheet model. We find that the shelf areas around East Antarctica first shoaled as upper mantle material upwelled and a peripheral forebulge developed. The inner shelf subsequently subsided as lithosphere flexure extended outwards from the ice-sheet margins. Consequently the coasts experienced a progressive relative sea-level rise. Our analysis of sediment cores from the vicinity of the Antarctic ice sheet are in agreement with the spatial patterns of relative sea-level change indicated by our simulations. Our results are consistent with the suggestion8 that near-field processes such as local sea-level change influence the equilibrium state obtained by an icesheet grounding line.",

author = "Paolo Stocchi and Carlota Escutia and Houben, {Alexander J.P.} and Vermeersen, {Bert L.A.} and Bijl, {Peter K.} and Henk Brinkhuis and DeConto, {Robert M.} and Simone Galeotti and Sandra Passchier and David Pollard and Adam Klaus and Annick Fehr and Trevor Williams and Bendle, {James A.P.} and Bohaty, {Steven M.} and Carr, {Stephanie A.} and Dunbar, {Robert B.} and Flores, {Jose Abel} and Gonz{\`a}lez, {Jhon J.} and Hayden, {Travis G.} and Masao Iwai and Jimenez-Espejo, {Francisco J.} and Kota Katsuki and Kong, {Gee Soo} and McKay, {Robert M.} and Mutsumi Nakai and Olney, {Matthew P.} and Pekar, {Stephen F.} and J{\"o}rg Pross and Christina Riesselman and Ursula R{\"o}hl and Toyosaburo Sakai and Shrivastava, {Prakash Kumar} and Stickley, {Catherine E.} and Saiko Sugisaki and Lisa Tauxe and Shouting Tuo and {Van De Flierdt}, Tina and Kevin Welsh and Masako Yamane",

year = "2013",

month = may,

doi = "10.1038/NGEO1783",

language = "English",

volume = "6",

pages = "380--384",

journal = "Nature Geoscience",

issn = "1752-0894",

publisher = "Nature Publishing Group",

number = "5",

}

Stocchi, P, Escutia, C, Houben, AJP, Vermeersen, BLA, Bijl, PK, Brinkhuis, H, DeConto, RM, Galeotti, S, Passchier, S, Pollard, D, Klaus, A, Fehr, A, Williams, T, Bendle, JAP, Bohaty, SM, Carr, SA, Dunbar, RB, Flores, JA, Gonzàlez, JJ, Hayden, TG, Iwai, M, Jimenez-Espejo, FJ, Katsuki, K, Kong, GS, McKay, RM, Nakai, M, Olney, MP, Pekar, SF, Pross, J, Riesselman, C, Röhl, U, Sakai, T, Shrivastava, PK, Stickley, CE, Sugisaki, S, Tauxe, L, Tuo, S, Van De Flierdt, T, Welsh, K & Yamane, M 2013, 'Relative sea-level rise around East Antarctica during Oligocene glaciation', Nature Geoscience, vol. 6, no. 5, pp. 380-384. https://doi.org/10.1038/NGEO1783

TY - JOUR

T1 - Relative sea-level rise around East Antarctica during Oligocene glaciation

AU - Stocchi, Paolo

AU - Escutia, Carlota

AU - Houben, Alexander J.P.

AU - Vermeersen, Bert L.A.

AU - Bijl, Peter K.

AU - Brinkhuis, Henk

AU - DeConto, Robert M.

AU - Galeotti, Simone

AU - Passchier, Sandra

AU - Pollard, David

AU - Klaus, Adam

AU - Fehr, Annick

AU - Williams, Trevor

AU - Bendle, James A.P.

AU - Bohaty, Steven M.

AU - Carr, Stephanie A.

AU - Dunbar, Robert B.

AU - Flores, Jose Abel

AU - Gonzàlez, Jhon J.

AU - Hayden, Travis G.

AU - Iwai, Masao

AU - Jimenez-Espejo, Francisco J.

AU - Katsuki, Kota

AU - Kong, Gee Soo

AU - McKay, Robert M.

AU - Nakai, Mutsumi

AU - Olney, Matthew P.

AU - Pekar, Stephen F.

AU - Pross, Jörg

AU - Riesselman, Christina

AU - Röhl, Ursula

AU - Sakai, Toyosaburo

AU - Shrivastava, Prakash Kumar

AU - Stickley, Catherine E.

AU - Sugisaki, Saiko

AU - Tauxe, Lisa

AU - Tuo, Shouting

AU - Van De Flierdt, Tina

AU - Welsh, Kevin

AU - Yamane, Masako

PY - 2013/5

Y1 - 2013/5

N2 - During the middle and late Eocene (∼48-34 Myr ago), the Earth's climate cooled1,2 and an ice sheet built up on Antarctica. The stepwise expansion of ice on Antarctica3,4induced crustal deformation and gravitational perturbations around the continent. Close to the ice sheet, sea level rose5,6despite an overall reduction in the mass of the ocean caused by the transfer of water to the ice sheet. Here we identify the crustal response to ice-sheet growth by forcing a glacial-hydro isostatic adjustment model7 with an Antarctic ice-sheet model. We find that the shelf areas around East Antarctica first shoaled as upper mantle material upwelled and a peripheral forebulge developed. The inner shelf subsequently subsided as lithosphere flexure extended outwards from the ice-sheet margins. Consequently the coasts experienced a progressive relative sea-level rise. Our analysis of sediment cores from the vicinity of the Antarctic ice sheet are in agreement with the spatial patterns of relative sea-level change indicated by our simulations. Our results are consistent with the suggestion8 that near-field processes such as local sea-level change influence the equilibrium state obtained by an icesheet grounding line.

AB - During the middle and late Eocene (∼48-34 Myr ago), the Earth's climate cooled1,2 and an ice sheet built up on Antarctica. The stepwise expansion of ice on Antarctica3,4induced crustal deformation and gravitational perturbations around the continent. Close to the ice sheet, sea level rose5,6despite an overall reduction in the mass of the ocean caused by the transfer of water to the ice sheet. Here we identify the crustal response to ice-sheet growth by forcing a glacial-hydro isostatic adjustment model7 with an Antarctic ice-sheet model. We find that the shelf areas around East Antarctica first shoaled as upper mantle material upwelled and a peripheral forebulge developed. The inner shelf subsequently subsided as lithosphere flexure extended outwards from the ice-sheet margins. Consequently the coasts experienced a progressive relative sea-level rise. Our analysis of sediment cores from the vicinity of the Antarctic ice sheet are in agreement with the spatial patterns of relative sea-level change indicated by our simulations. Our results are consistent with the suggestion8 that near-field processes such as local sea-level change influence the equilibrium state obtained by an icesheet grounding line.

UR - http://www.scopus.com/inward/record.url?scp=84877249297&partnerID=8YFLogxK

U2 - 10.1038/NGEO1783

DO - 10.1038/NGEO1783

M3 - Article

AN - SCOPUS:84877249297

VL - 6

SP - 380

EP - 384

JO - Nature Geoscience

JF - Nature Geoscience

SN - 1752-0894

IS - 5

ER -

Relative sea-level rise around East Antarctica during Oligocene glaciation

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