Mjølnir structure: An impact crater in the Barents Sea

Abstract

Research Article| September 01, 1996 Mjølnir structure: An impact crater in the Barents Sea Henning Dypvik; Henning Dypvik 1Department of Geology, University of Oslo, P.O. Box 1047, Blindern, N-0316 Oslo, Norway Search for other works by this author on: GSW Google Scholar Steinar T. Gudlaugsson; Steinar T. Gudlaugsson 1Department of Geology, University of Oslo, P.O. Box 1047, Blindern, N-0316 Oslo, Norway Search for other works by this author on: GSW Google Scholar Filippos Tsikalas; Filippos Tsikalas 1Department of Geology, University of Oslo, P.O. Box 1047, Blindern, N-0316 Oslo, Norway Search for other works by this author on: GSW Google Scholar Moses Attrep, Jr; Moses Attrep, Jr 2Los Alamos National Laboratory, Isotope and Nuclear Chemistry Division, MS J514, Los Alamos, New Mexico 87545 Search for other works by this author on: GSW Google Scholar Ray E. Ferrell, Jr; Ray E. Ferrell, Jr 3Department of Geology and Geophysics, Louisiana State University, Baton Rouge, Louisiana 79803-4101 Search for other works by this author on: GSW Google Scholar David H. Krinsley; David H. Krinsley 4Department of Geological Sciences, University of Oregon, Eugene, Oregon 97403-1272 Search for other works by this author on: GSW Google Scholar Atle Mørk; Atle Mørk 5IKU Petroleum Research, N-7034 Trondheim, Norway Search for other works by this author on: GSW Google Scholar Jan Inge Faleide; Jan Inge Faleide 1Department of Geology, University of Oslo, P.O. Box 1047, Blindern, N-0316 Oslo, Norway Search for other works by this author on: GSW Google Scholar Jenö Nagy Jenö Nagy 1Department of Geology, University of Oslo, P.O. Box 1047, Blindern, N-0316 Oslo, Norway Search for other works by this author on: GSW Google Scholar Author and Article Information Henning Dypvik 1Department of Geology, University of Oslo, P.O. Box 1047, Blindern, N-0316 Oslo, Norway Steinar T. Gudlaugsson 1Department of Geology, University of Oslo, P.O. Box 1047, Blindern, N-0316 Oslo, Norway Filippos Tsikalas 1Department of Geology, University of Oslo, P.O. Box 1047, Blindern, N-0316 Oslo, Norway Moses Attrep, Jr 2Los Alamos National Laboratory, Isotope and Nuclear Chemistry Division, MS J514, Los Alamos, New Mexico 87545 Ray E. Ferrell, Jr 3Department of Geology and Geophysics, Louisiana State University, Baton Rouge, Louisiana 79803-4101 David H. Krinsley 4Department of Geological Sciences, University of Oregon, Eugene, Oregon 97403-1272 Atle Mørk 5IKU Petroleum Research, N-7034 Trondheim, Norway Jan Inge Faleide 1Department of Geology, University of Oslo, P.O. Box 1047, Blindern, N-0316 Oslo, Norway Jenö Nagy 1Department of Geology, University of Oslo, P.O. Box 1047, Blindern, N-0316 Oslo, Norway Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1996) 24 (9): 779–782. https://doi.org/10.1130/0091-7613(1996)024<0779:MLSAIC>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 Henning Dypvik, Steinar T. Gudlaugsson, Filippos Tsikalas, Moses Attrep, Ray E. Ferrell, David H. Krinsley, Atle Mørk, Jan Inge Faleide, Jenö Nagy; Mjølnir structure: An impact crater in the Barents Sea. Geology 1996;; 24 (9): 779–782. doi: https://doi.org/10.1130/0091-7613(1996)024<0779:MLSAIC>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 A systematic search for impact indicators was conducted on a core of Late Jurassic–Early Cretaceous sedimentary strata from the vicinity of the proposed Mjølnir impact structure, Barents Sea. A 0.8-m-thick section of the core was found to contain unequivocal indicators of meteoritic impact: shocked quartz grains and a strong enrichment in iridium. The ejecta-bearing strata were discovered only 30 km north-northeast of the structure, within a stratigraphic interval corresponding to the seismically defined deformation event at Mjølnir. Further study of this unusually well preserved impact-crater-ejecta-layer pair may help constrain poorly understood aspects of large-magnitude meteorite impacts into the oceans. 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.