Glacial climates in the Antarctic region during the late Paleogene: Evidence from northwest Tasmania, Australia

Abstract

Research Article| February 01, 1993 Glacial climates in the Antarctic region during the late Paleogene: Evidence from northwest Tasmania, Australia M. K. Macphail; M. K. Macphail 1Department of Geography, University of Newcastle, Newcastle, New South Wales 2308, Australia Search for other works by this author on: GSW Google Scholar E. A. Colhoun; E. A. Colhoun 1Department of Geography, University of Newcastle, Newcastle, New South Wales 2308, Australia Search for other works by this author on: GSW Google Scholar K. Kiernan; K. Kiernan 2Forestry Commission of Tasmania, Hobart, Tasmania 7000, Australia Search for other works by this author on: GSW Google Scholar D. Hannan D. Hannan 3Faculty of Education, University of Tasmania, Launceston, Tasmania 7250, Australia Search for other works by this author on: GSW Google Scholar Geology (1993) 21 (2): 145–148. https://doi.org/10.1130/0091-7613(1993)021<0145:GCITAR>2.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation M. K. Macphail, E. A. Colhoun, K. Kiernan, D. Hannan; Glacial climates in the Antarctic region during the late Paleogene: Evidence from northwest Tasmania, Australia. Geology 1993;; 21 (2): 145–148. doi: https://doi.org/10.1130/0091-7613(1993)021<0145:GCITAR>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 Published data suggest that ice buildup commenced in Antarctica during the late middle Eocene. This predates by 30 m.y. the earliest evidence of Cenozoic glaciation on other fragments of Gondwana, although several of these were at high latitudes during the Paleogene. We provide new evidence for local glacier development during the late Paleogene in Tasmania, then a mountainous peninsula at about lat 55°-63°S projecting into the circum-Antarctic ocean. The date of glaciation is not precisely known, but an earliest Oligocene age is indicated. We suggest that episode may correlate with abrupt cooling of the sea surface surrounding Antarctica during the earliest Oligocene (∼36 Ma). 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.