Constraints on age, erosion, and uplift of Neogene glacial deposits in the Transantarctic Mountains determined from in situ cosmogenic 10Be and 26Al

Abstract

Research Article| December 01, 1995 Constraints on age, erosion, and uplift of Neogene glacial deposits in the Transantarctic Mountains determined from in situ cosmogenic 10Be and 26Al Edward J. Brook; Edward J. Brook 1Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02540 Search for other works by this author on: GSW Google Scholar Erik T. Brown; Erik T. Brown 2Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, Bâtiment 108, 91405, Campus Orsay, France Search for other works by this author on: GSW Google Scholar Mark D. Kurz; Mark D. Kurz 1Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02540 Search for other works by this author on: GSW Google Scholar Robert P. Ackert, Jr; Robert P. Ackert, Jr 1Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02540 Search for other works by this author on: GSW Google Scholar Grant M. Raisbeck; Grant M. Raisbeck 2Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, Bâtiment 108, 91405, Campus Orsay, France Search for other works by this author on: GSW Google Scholar Françoise Yiou Françoise Yiou 2Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, Bâtiment 108, 91405, Campus Orsay, France Search for other works by this author on: GSW Google Scholar Geology (1995) 23 (12): 1063–1066. https://doi.org/10.1130/0091-7613(1995)023<1063:COAEAU>2.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Edward J. Brook, Erik T. Brown, Mark D. Kurz, Robert P. Ackert, Grant M. Raisbeck, Françoise Yiou; Constraints on age, erosion, and uplift of Neogene glacial deposits in the Transantarctic Mountains determined from in situ cosmogenic 10Be and 26Al. Geology 1995;; 23 (12): 1063–1066. doi: https://doi.org/10.1130/0091-7613(1995)023<1063:COAEAU>2.3.CO;2 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 10Be and 26Al data from sandstone boulders in three Neogene glacial deposits in the McMurdo Sound–Dry Valleys region of southern Victoria Land, Antarctica, indicate minimum exposure ages of (Approx.)3 Ma and maximum long-term erosion rates of (Approx.)5–12 cm/m.y., supporting the suggestion that polar desert conditions have persisted in the Dry Valleys since at least late Pliocene time. Variation of cosmogenic nuclide production rate with altitude also allows constraints on past uplift rates. Model calculations employing 10Be data indicate little or no uplift in the Dry Valleys region in the past 3 m.y., precluding rapid (≈1 km/m.y.) late Pliocene uplift previously suggested for some parts of the Transantarctic Mountains. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.