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Isostatic rebound due to glacial erosion within the Transantarctic Mountains

2005; Geological Society of America; Volume: 33; Issue: 3 Linguagem: Inglês

10.1130/g21068.1

1943-2682

Theodore A. Stern, A. K. Baxter, P. J. Barrett,

Pleistocene-Era Hominins and Archaeology

Research Article| March 01, 2005 Isostatic rebound due to glacial erosion within the Transantarctic Mountains T.A. Stern; T.A. Stern 1School of Earth Sciences, Victoria University of Wellington, Wellington, New Zealand Search for other works by this author on: GSW Google Scholar A.K. Baxter; A.K. Baxter 1School of Earth Sciences, Victoria University of Wellington, Wellington, New Zealand Search for other works by this author on: GSW Google Scholar P.J. Barrett P.J. Barrett 1School of Earth Sciences, Victoria University of Wellington, Wellington, New Zealand Search for other works by this author on: GSW Google Scholar Author and Article Information T.A. Stern 1School of Earth Sciences, Victoria University of Wellington, Wellington, New Zealand A.K. Baxter 1School of Earth Sciences, Victoria University of Wellington, Wellington, New Zealand P.J. Barrett 1School of Earth Sciences, Victoria University of Wellington, Wellington, New Zealand Publisher: Geological Society of America Received: 27 Jul 2004 Revision Received: 26 Oct 2004 Accepted: 28 Oct 2004 First Online: 02 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2005) 33 (3): 221–224. https://doi.org/10.1130/G21068.1 Article history Received: 27 Jul 2004 Revision Received: 26 Oct 2004 Accepted: 28 Oct 2004 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation T.A. Stern, A.K. Baxter, P.J. Barrett; Isostatic rebound due to glacial erosion within the Transantarctic Mountains. Geology 2005;; 33 (3): 221–224. doi: https://doi.org/10.1130/G21068.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract In temperate climates, ∼25% of peak elevations in mountain ranges can be created by isostatic rebound as a response to erosional incision. Significantly more relief generation and peak uplift are, however, possible for glacial erosion in a polar climate. We incorporate regional isostasy using flexure of an elastic plate to show that isostatic rebound as a response to glacial incision can account for as much as 2000 m or 50% of peak elevation in the central Transantarctic Mountains. Differences in relief of at least 5500 m over lateral distances of just 40 km are evident within the central part of the 3000-km-long mountain range. Such strong relief is possible because a polar climate since the middle Miocene has resulted in freezing conditions at high elevations, which acted to preserve the peaks, whereas wet-based glaciers at low elevations have produced optimal conditions for enhanced glacial incision. Because isostatic rebound results in permanent peak uplift, this mechanism provides an explanation of why the Transantarctic Mountains are one of the higher and more long-lived continental rift margins on Earth. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.