Abstract
Research Article| January 01, 1974 Gravity Study of the Exeter Pluton, Southeastern New Hampshire WALLACE A. BOTHNER WALLACE A. BOTHNER 1Department of Earth Sciences, University of New Hampshire, Durham, New Hampshire 03824 Search for other works by this author on: GSW Google Scholar Author and Article Information WALLACE A. BOTHNER 1Department of Earth Sciences, University of New Hampshire, Durham, New Hampshire 03824 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1974) 85 (1): 51–56. https://doi.org/10.1130/0016-7606(1974)85<51:GSOTEP>2.0.CO;2 Article history First Online: 01 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 WALLACE A. BOTHNER; Gravity Study of the Exeter Pluton, Southeastern New Hampshire. GSA Bulletin 1974;; 85 (1): 51–56. doi: https://doi.org/10.1130/0016-7606(1974)85<51:GSOTEP>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 SocietyGSA Bulletin Search Advanced Search Abstract The Exeter diorite pluton of southeastern New Hampshire is a small mesozonal batholith emplaced into asymmetrically folded Silurian metasedimentary rocks. The body produces a positive Bouguer gravity anomaly in excess of 16 mgals. The gravity maximum is located northwest of the northeast-trending axis of the pluton and the Exeter anticline, indicating that the mass concentration is offset in the same direction. Using a density contrast of 0.15 gm/cm3, two- and three-dimensional gravity models show a range in body thickness from 1 to 3 km and a roughly tabular subsurface shape. The shape and mass distribution are consistent with the enclosing structure. The three-dimensional geometry of the Exeter pluton suggests emplacement during or after the Middle Devonian Acadian deformation of central New England. 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.
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