Giant slide deposits from a Mesozoic fore-arc basin, Alexander Island, Antarctica

Research Article| November 01, 1993 Giant slide deposits from a Mesozoic fore-arc basin, Alexander Island, Antarctica David I. M. Macdonald; David I. M. Macdonald 1British Antarctic Survey, National Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, England Search for other works by this author on: GSW Google Scholar Andrew C. M. Moncrieff; Andrew C. M. Moncrieff 1British Antarctic Survey, National Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, England Search for other works by this author on: GSW Google Scholar Peter J. Butterworth Peter J. Butterworth 1British Antarctic Survey, National Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, England Search for other works by this author on: GSW Google Scholar Author and Article Information David I. M. Macdonald 1British Antarctic Survey, National Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, England Andrew C. M. Moncrieff 1British Antarctic Survey, National Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, England Peter J. Butterworth 1British Antarctic Survey, National Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, England Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1993) 21 (11): 1047–1050. https://doi.org/10.1130/0091-7613(1993)021<1047:GSDFAM>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 Email Permissions Search Site Citation David I. M. Macdonald, Andrew C. M. Moncrieff, Peter J. Butterworth; Giant slide deposits from a Mesozoic fore-arc basin, Alexander Island, Antarctica. Geology 1993;; 21 (11): 1047–1050. doi: https://doi.org/10.1130/0091-7613(1993)021<1047:GSDFAM>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 Several very large synsedimentary slide units exist in the well-exposed Mesozoic fore-arc sequence of Alexander Island, Antarctica. The largest single exposure, which is at least 440 m thick and more than 21 by 6 km in area, forms part of a unit that has a volume of as much as 300 km3. These units are as large as slide deposits noted by remote sensing on modern continental margins. The apparent absence of large, ancient slide deposits is therefore purely a function of exposure. The enormous size of these Antarctic examples, in which sheets of partially lithified sediment, up to 1 km long, have been transported with little or no internal deformation or tilting, emphasizes the care needed in determining that even very large outcrops are not allochthonous. 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.