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East Antarctic rifting triggers uplift of the Gamburtsev Mountains

Author

Listed:
  • Fausto Ferraccioli

    (British Antarctic Survey, High Cross, Madingley Road, Cambridge, CB3 0ET, UK)

  • Carol A. Finn

    (US Geological Survey, Denver, Colorado 80225, USA)

  • Tom A. Jordan

    (British Antarctic Survey, High Cross, Madingley Road, Cambridge, CB3 0ET, UK)

  • Robin E. Bell

    (Lamont Doherty Earth Observatory of Columbia University)

  • Lester M. Anderson

    (British Antarctic Survey, High Cross, Madingley Road, Cambridge, CB3 0ET, UK)

  • Detlef Damaske

    (Bundensanstalt für Geowissenschaften und Rohstoffe, Hannover, Stilleweg 2, 30655, Germany)

Abstract

Mountain building beneath Antarctica Radar, gravity and magnetic data from the Gamburtsev subglacial mountains, hidden beneath the East Antarctic ice sheet, reveal a previously unknown rift system that helps to explain the enigmatic origin of the Gamburtsevs. The geophysical data define a 2,500-kilometre-long rift system surrounding the mountain range, above a thick crustal root. The Gamburtsevs challenge conventional thinking on mountain building, located as they are on what is widely assumed to be a stable craton. Modelling suggests that the mountains arose from a combination of rift-flank uplift, root buoyancy and isostatic response, resulting in fluvial and glacial erosion.

Suggested Citation

  • Fausto Ferraccioli & Carol A. Finn & Tom A. Jordan & Robin E. Bell & Lester M. Anderson & Detlef Damaske, 2011. "East Antarctic rifting triggers uplift of the Gamburtsev Mountains," Nature, Nature, vol. 479(7373), pages 388-392, November.
    • Handle: RePEc:nat:nature:v:479:y:2011:i:7373:d:10.1038_nature10566
    DOI: 10.1038/nature10566
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    Cited by:

    1. Haijun Yang & Rui Jiang & Qin Wen & Yimin Liu & Guoxiong Wu & Jianping Huang, 2024. "The role of mountains in shaping the global meridional overturning circulation," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    2. Paul G. Fitzgerald & John W. Goodge, 2022. "Exhumation and tectonic history of inaccessible subglacial interior East Antarctica from thermochronology on glacial erratics," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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