Late Paleozoic ice age: Oceanic gateway or pCO2?

Research Article| February 01, 2003 Late Paleozoic ice age: Oceanic gateway or pCO2? Matthew R. Saltzman Matthew R. Saltzman 1Department of Geological Sciences, Ohio State University, Columbus, Ohio 43210, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Matthew R. Saltzman 1Department of Geological Sciences, Ohio State University, Columbus, Ohio 43210, USA Publisher: Geological Society of America Received: 15 Jun 2002 Revision Received: 23 Sep 2002 Accepted: 03 Oct 2002 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2003) 31 (2): 151–154. https://doi.org/10.1130/0091-7613(2003)031<0151:LPIAOG>2.0.CO;2 Article history Received: 15 Jun 2002 Revision Received: 23 Sep 2002 Accepted: 03 Oct 2002 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Matthew R. Saltzman; Late Paleozoic ice age: Oceanic gateway or pCO2?. Geology 2003;; 31 (2): 151–154. doi: https://doi.org/10.1130/0091-7613(2003)031<0151:LPIAOG>2.0.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 The cause of the late Paleozoic (ca. 355–255 Ma) ice age remains uncertain. A lowering of atmospheric carbon dioxide levels near the beginning of this time period occurred in response to the rise of land plants and likely cooled Earth, but the rapid growth of extensive Gondwanan ice sheets was delayed for tens of millions of years, until the Late Mississippian. The δ13C values from a thick succession at Arrow Canyon, Nevada, indicate a divergence between North America and Europe (∼2‰) across the Mississippian-Pennsylvanian transition, and support a scenario in which the closure of a subequatorial oceanic gateway during the assembly of Pangea altered the oceanic distribution of nutrients (12C) and led to enhanced poleward transport of heat and moisture. This change marks the transition from a cool, moisture-starved Gondwana to the icehouse world of the Pennsylvanian and Early Permian. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.