Late Quaternary relative sea-level change in the western Gulf of Maine: Evidence for a migrating glacial forebulge

Abstract

Research Article| April 01, 1995 Late Quaternary relative sea-level change in the western Gulf of Maine: Evidence for a migrating glacial forebulge Walter A. Barnhardt; Walter A. Barnhardt 1Department of Geological Sciences, University of Maine, Orono, Maine 04469 Search for other works by this author on: GSW Google Scholar W. Roland Gehrels; W. Roland Gehrels 1Department of Geological Sciences, University of Maine, Orono, Maine 04469 Search for other works by this author on: GSW Google Scholar Joseph T. Kelley Joseph T. Kelley 2Maine Geological Survey, Station 22, Augusta, Maine 04333 Search for other works by this author on: GSW Google Scholar Author and Article Information Walter A. Barnhardt 1Department of Geological Sciences, University of Maine, Orono, Maine 04469 W. Roland Gehrels 1Department of Geological Sciences, University of Maine, Orono, Maine 04469 Joseph T. Kelley 2Maine Geological Survey, Station 22, Augusta, Maine 04333 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1995) 23 (4): 317–320. https://doi.org/10.1130/0091-7613(1995)023<0317:LQRSLC>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 Walter A. Barnhardt, W. Roland Gehrels, Joseph T. Kelley; Late Quaternary relative sea-level change in the western Gulf of Maine: Evidence for a migrating glacial forebulge. Geology 1995;; 23 (4): 317–320. doi: https://doi.org/10.1130/0091-7613(1995)023<0317:LQRSLC>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 New radiocarbon-dated cores obtained by Vibracorers in the western Gulf of Maine confirm that a short-lived, relative sea-level lowstand of ∼−55 m occurred at 11–10.5 ka. These cores and younger salt-marsh data also reveal that rates of transgression varied throughout the Holocene, probably due to local variations in glacial isostasy. The isostatic component is resolved by subtracting published approximations of eustatic sea level from our well-determined observations of local relative sea level. A large peak in the isostatic curve coincides with the lowstand and is interpreted as a forebulge 20–25 m in amplitude. Forebulge migration is estimated at 7–11 km/100 yr, based on the timing of lowstands across the region. 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.