Characterization of soft-sediment deformation: Detection of cryptoslumps using magnetic methods

Abstract

Research Article| March 01, 2003 Characterization of soft-sediment deformation: Detection of cryptoslumps using magnetic methods Kurt Schwehr; Kurt Schwehr 1Scripps Institution of Oceanography, University of California—San Diego, La Jolla, California 92093-0208, USA Search for other works by this author on: GSW Google Scholar Lisa Tauxe Lisa Tauxe 1Scripps Institution of Oceanography, University of California—San Diego, La Jolla, California 92093-0208, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Kurt Schwehr 1Scripps Institution of Oceanography, University of California—San Diego, La Jolla, California 92093-0208, USA Lisa Tauxe 1Scripps Institution of Oceanography, University of California—San Diego, La Jolla, California 92093-0208, USA Publisher: Geological Society of America Received: 06 Aug 2002 Revision Received: 31 Oct 2002 Accepted: 11 Nov 2002 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2003) 31 (3): 203–206. https://doi.org/10.1130/0091-7613(2003)031<0203:COSSDD>2.0.CO;2 Article history Received: 06 Aug 2002 Revision Received: 31 Oct 2002 Accepted: 11 Nov 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 Kurt Schwehr, Lisa Tauxe; Characterization of soft-sediment deformation: Detection of cryptoslumps using magnetic methods. Geology 2003;; 31 (3): 203–206. doi: https://doi.org/10.1130/0091-7613(2003)031<0203:COSSDD>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 Many workers have explored anisotropy of magnetic susceptibility (AMS) of sediments as an indicator of deformation. Several studies have used deflection of the eigenvector associated with the minimum in susceptibility, V3, as a criterion for deformation. We examine the AMS record of a well-exposed slump and find that although demonstrable deformation can occur without deflecting the V3 directions, an oblate AMS fabric is transformed into a triaxial fabric during initial deformation. Transformation of the fabric from oblate to triaxial appears to be highly correlated with an increase in natural remanent magnetization scatter, whereas deflection of the V3 axes is not. We suggest that subtle soft-sediment deformation can be detected by using AMS fabric. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.