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Origin(s) of Antarctica's Wilkes Subglacial Basin

Published online by Cambridge University Press:  16 December 2013

John G. Weihaupt ,
Frans G. Van Der Hoeven ,
Claude Lorius  and
Frederick B. Chambers
John G. Weihaupt*
Affiliation:
Department of Geology, University of Colorado Denver, Denver, CO, USA
Frans G. Van Der Hoeven
Affiliation:
Department of Geophysics, Delft University of Technology, Delft, The Netherlands
Claude Lorius
Affiliation:
Laboratoire de Glaciologie et Géophysique de l'Environnement, Grenoble, France
Frederick B. Chambers
Affiliation:
Department of Geography and Environmental Sciences, University of Colorado Denver, Denver, CO, USA
*
[email protected]
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Abstract

The Wilkes Subglacial Basin (WSB), the largest subglacial basin in East Antarctica, is a topographic depression of continental proportions that lies beneath the East Antarctic continental ice sheet. Discovered by the US Victoria Land Traverse 1959–60, the origin of the WSB and the influence of palaeoclimate on its overlying continental ice sheet have remained uncertain since the time of its discovery. Most explanations of origin favour lithospheric structural control as a function of tectonic activity. Lithospheric flexure due to thermally or isostatically induced uplift of the Transantarctic Mountains was suggested in the 1980s. Lithospheric extension and rifting was proposed in the 1990s. More recent investigations have revealed the presence of fold and thrust belts, casting doubt on flexural and extensional hypotheses as the primary mechanisms, suggesting instead a compressional scenario. While remaining inconclusive, these tectonic mechanisms in one form or another, or in combination, are now believed to have provided the structural control for the origin of the WSB. Not yet comprehensively examined, however, is the role of non-tectonic processes in the formation of the WSB, as they may have influenced the size, configuration, subglacial sedimentation and subglacial topography of the WSB. In this paper we review the tectonic hypotheses and examine post-tectonic climate change along with glacial and marine processes as potentially significant factors in the present condition and configuration of the WSB. In the process, we find that there are a number of features not included in previous investigations that may have been major factors in the modification of the subglacial basin.

Keywords

climatecontinental ice sheetlithospheresubglacial topography
Type
Earth Sciences
Information
Antarctic Science , Volume 26 , Issue 4 , August 2014 , pp. 377 - 383
Copyright
Copyright © Antarctic Science Ltd 2013 

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References

Armadillo, E., Bozzo, E., Caneva, G., Manzella, A. Ranieri, G. 2007. Imaging deep and shallow structures by electromagnetic soundings moving from the Transantarctic Mountains to the Wilkes Subglacial Basin. Terra Antarctica Reports, 13, 65–74.Google Scholar
Bamber, J.L., Vaughan, D.G. Joughin, I. 2000. Widespread complex flow in the interior of the Antarctic ice sheet. Science, 287, 1248–1250.CrossRefGoogle ScholarPubMed
Bianchi, C., Cafarella, L., De Michelis, P., Forieri, A., Frezzotti, M., Tabacco, I.E. Zirizzotti, A. 2003. Radio echo sounding (RES) investigations at Talos Dome (East Antarctica): bedrock topography and ice thickness. Annals of Geophysics, 46, 1265–1270.Google Scholar
Cafarella, L., Urbini, S., Bianchi, C., Zirizzotti, A., Tabacco, I.E. Forieri, A. 2006. Five subglacial lakes and one of Antarctica's thickest ice covers newly determined by radio echo sounding over the Vostok Dome C region. Polar Research, 25, 69–73.Google Scholar
Escutia, C., De Santis, L., Donda, F., Dunbar, R.B., Cooper, A.K., Brancolini, G. Eittreim, S.L. 2005. Cenozoic ice sheet history from East Antarctic Wilkes Land continental margin sediments. Global and Planetary Change, 45, 51–81.Google Scholar
Ferraccioli, F., Armadillo, E., Jordan, T., Bozzo, E. Corr, H. 2009. Aeromagnetic exploration over the East Antarctic Ice Sheet: a new view of the Wilkes Subglacial Basin. Tectonophysics, 478, 62–77.Google Scholar
Fretwell, P., Pritchard, H.D., Vaughan, D.G., et al. 2013. BEDMAP2: improved ice bed, surface and thickness datasets for Antarctica. Cryosphere, 7, 375–393.Google Scholar
Hughes, T. 2009. Variations of ice bed coupling beneath and beyond ice streams: the force balance. Journal of Geophysical Research - Solid Earth, 114, 10.1029/2009JB006426.Google Scholar
Huybers, P. 2009. Antarctica's orbital beat. Science, 325, 1085–1086.Google Scholar
Jamieson, S.S.R., Sugden, D.E. Hulton, N.R.J. 2010. The evolution of the subglacial landscape of Antarctica. Earth and Planetary Science Letters, 293, 1–27.Google Scholar
Jezek, K.C. 2002. RADARSAT-1 Antarctic mapping project: change-detection and surface velocity campaign. Annals of Glaciology, 34, 263–268.Google Scholar
Jordan, T.A., Ferraccioli, F., Armadillo, E. Bozzo, E. 2013. Crustal architecture of the Wilkes Subglacial Basin in East Antarctica, as revealed from airborne gravity data. Tectonophysics, 585, 196–206.CrossRefGoogle Scholar
Karner, G.D., Studinger, M. Bell, R.E. 2005. Gravity anomalies of sedimentary basins and their mechanical implications: application to the Ross Sea basins, West Antarctica. Earth and Planetary Science Letters, 235, 577–596.CrossRefGoogle Scholar
Le Brocq, A.M., Hubbard, A., Bentley, M.J. Bamber, J.L. 2008. Subglacial topography inferred from ice surface terrain analysis reveals a large un-surveyed basin below sea level in East Antarctica. Geophysical Research Letters, 35, 10.1029/2008GL034728.Google Scholar
Llubes, M., Lanseau, C. Remy, F. 2006. Relations between basal condition, subglacial hydrological networks and geothermal flux in Antarctica. Earth and Planetary Science Letters, 241, 655–662.Google Scholar
Lorius, C., Merlivat, L., Jouzel, J. Pourchet, M. 1979. 30,000-year isotope climatic record from Antarctic ice. Nature, 280, 644–648.Google Scholar
Lorius, C., Jouzel, J., Raynaud, D., Hansen, J. LeTreut, H. 1990. The ice-core record: climate sensitivity and future greenhouse warming. Nature, 347, 139–145.Google Scholar
Lüthi, D., Le Floch, M., Bereiter, B., Blunier, T., Barnola, J.M., Siegenthaler, U., Raynaud, D., Jouzel, J., Fischer, H., Kawamura, K. Stocker, T.F. 2008. High-resolution carbon dioxide concentration record 650,000–800,000 years before present. Nature, 453, 379–382.CrossRefGoogle ScholarPubMed
Lythe, M.B., Vaughan, D.G. & The Bedmap Consortium. 2001. BEDMAP: a new ice thickness and subglacial topographic model of Antarctica. Journal of Geophysical Research - Solid Earth, 106, 11 335–11 351.CrossRefGoogle Scholar
Mayewski, P.A., Maasch, K.A., Yan, Y.P., Kang, S.C., Meyerson, E.A., Sneed, S.B., Kaspari, S.D., Dixon, D.A., Osterberg, E.C., Morgan, V.I., van Ommen, T. Curran, M.A.J. 2006. Solar forcing of the polar atmosphere. Annals of Glaciology, 41, 147–154.CrossRefGoogle Scholar
Miller, K.G., Mountain, G.S., Wright, J.D. Browning, J.V. 2011. A 180-million-year record of sea level and ice volume variations from continental margin and deep-sea isotopic records. Oceanography, 24, 40–53.CrossRefGoogle Scholar
Mosbrugger, V., Utescher, T. Dilcher, D.L. 2005. Cenozoic continental climate evolution of Central Europe. Proceedings of the National Academy of Sciences of the United States of America, 102, 14 964–14 969.Google Scholar
Pattyn, F. 2010. Antarctic subglacial conditions inferred from a hybrid ice sheet/ice stream model. Earth and Planetary Science Letters, 295, 451–461.CrossRefGoogle Scholar
Rignot, E., Mouginot, J. Scheuchl, B. 2011. Ice flow of the Antarctic ice sheet. Science, 333, 1427–1430.Google Scholar
Schmitt, J., Schneider, R., Elsig, J., Leuenberger, D., Lourantou, A., Chappellaz, J., Köhler, P., Joos, F., Stocker, T.F., Leuenberger, M. Fischer, H. 2012. Carbon isotope constraints on the deglacial CO2 rise from ice cores. Science, 336, 711–714.CrossRefGoogle ScholarPubMed
Siegert, M.J., Taylor, J. Payne, A.J. 2005. Spectral roughness of subglacial topography and implications for former ice-sheet dynamics in East Antarctica. Global and Planetary Change, 45, 249–263.CrossRefGoogle Scholar
Studinger, M., Bell, R.E., Buck, W.R., Karner, G.D. Blankenship, D.D. 2004. Sub-ice geology inland of the Transantarctic Mountains in light of new aerogeophysical data. Earth and Planetary Science Letters, 220, 391–408.Google Scholar
Ten Brink, U.S., Hackney, R.I., Bannister, S., Stern, T.A. Makovsky, Y. 1997. Uplift of the Transantarctic Mountains and the bedrock beneath the East Antarctic ice sheet. Journal of Geophysical Research - Solid Earth, 102, 27 603–27 621.Google Scholar
Thomson, S.N., Reiners, P.W., Hemming, S.R. Gehrels, G.E. 2013. The contribution of glacial erosion to shaping the hidden landscape of East Antarctica. Nature Geoscience, 6, 203–207.CrossRefGoogle Scholar
Tripati, A.K., Roberts, C.D. Eagle, R.A. 2009. Coupling of CO2 and ice sheet stability over major climate transitions of the last 20 million years. Science, 326, 1394–1397.Google Scholar
Truffer, M. Echelmeyer, K.A. 2003. Of isbrae and ice streams. Annals of Glaciology, 36, 66–72.Google Scholar
Weihaupt, J.G. 1961. Geophysical studies in Victoria Land, Antarctica. Madison, WI: University of Wisconsin Press, Geophysical and Polar Research Center, 123 pp.Google Scholar
Weihaupt, J.G., Rice, A. van der Hoeven, F.G. 2010. Gravity anomalies of the Antarctic lithosphere. Lithosphere, 2, 454–461.Google Scholar
Weihaupt, J.G., Stuart, A.W., van der Hoeven, F.G., Lorius, C. Smith, W.M. 2012. Impossible journey: the story of the Victoria Land Traverse 1959-1960, Antarctica. Boulder, CO: Geological Society of America, 136 pp.Google Scholar
Whitehead, J.A. Clift, P.D. 2009. Continent elevation, mountains, and erosion: freeboard implications. Journal of Geophysical Research - Solid Earth, 114, 10.1029/2008JB006176.Google Scholar
Wright, A. Siegert, M. 2012. A fourth inventory of Antarctic subglacial lakes. Antarctic Science, 24, 659–664.CrossRefGoogle Scholar
Zachos, J.C., Flower, B.P. Paul, H. 1997. Orbitally paced climate oscillations across the Oligocene/Miocene boundary. Nature, 388, 567–570.Google Scholar
Zachos, J., Pagani, M., Sloan, L., Thomas, E. Billups, K. 2001. Trends, rhythms, and aberrations in global climate 65 Ma to present. Science, 292, 686–693.CrossRefGoogle ScholarPubMed