Rapid onset of glacial conditions in the subarctic North Pacific region at 2.67 Ma: Clues to causality

Research Article| November 01, 1998 Rapid onset of glacial conditions in the subarctic North Pacific region at 2.67 Ma: Clues to causality Libby M. Prueher; Libby M. Prueher 1Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109-1063 Search for other works by this author on: GSW Google Scholar David K. Rea David K. Rea 1Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109-1063 Search for other works by this author on: GSW Google Scholar Author and Article Information Libby M. Prueher 1Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109-1063 David K. Rea 1Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109-1063 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1998) 26 (11): 1027–1030. https://doi.org/10.1130/0091-7613(1998)026<1027:ROOGCI>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 Libby M. Prueher, David K. Rea; Rapid onset of glacial conditions in the subarctic North Pacific region at 2.67 Ma: Clues to causality. Geology 1998;; 26 (11): 1027–1030. doi: https://doi.org/10.1130/0091-7613(1998)026<1027:ROOGCI>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 North Pacific deep-sea sediments recovered by Ocean Drilling Leg 145 constrain the timing of the late Pliocene major intensification of Northern Hemisphere continental glaciation. A change in sediment character from nonglacial to glacial—specifically, abrupt increases in the amount of terrigenous clastic sediment and ice-rafted debris—occurred all across the North Pacific at about 2.67 Ma. This change occurred very rapidly, perhaps within 2000 yr, too quickly to be a direct response to either tectonic or orbital forcing. As the number and thickness of volcanic ash layers increased 10-fold at this same time, we suggest that rapid intensification of glaciation may be associated with the widespread episode of explosive volcanism that began then. 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.