Displacement profiles and displacement-length scaling relationships of thrust faults constrained by seismic-reflection data

Research Article| July 01, 2010 Displacement profiles and displacement-length scaling relationships of thrust faults constrained by seismic-reflection data Kristian J. Bergen; Kristian J. Bergen † Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, Massachusetts 02138, USA †E-mail: kbergen@fas.harvard.edu Search for other works by this author on: GSW Google Scholar John H. Shaw John H. Shaw § Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, Massachusetts 02138, USA §E-mail: shaw@eps.harvard.edu Search for other works by this author on: GSW Google Scholar Author and Article Information Kristian J. Bergen † Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, Massachusetts 02138, USA John H. Shaw § Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, Massachusetts 02138, USA †E-mail: kbergen@fas.harvard.edu §E-mail: shaw@eps.harvard.edu Publisher: Geological Society of America Received: 19 Nov 2007 Revision Received: 05 Jan 2009 Accepted: 17 Apr 2009 First Online: 08 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 © 2010 Geological Society of America GSA Bulletin (2010) 122 (7-8): 1209–1219. https://doi.org/10.1130/B26373.1 Article history Received: 19 Nov 2007 Revision Received: 05 Jan 2009 Accepted: 17 Apr 2009 First Online: 08 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Kristian J. Bergen, John H. Shaw; Displacement profiles and displacement-length scaling relationships of thrust faults constrained by seismic-reflection data. GSA Bulletin 2010;; 122 (7-8): 1209–1219. doi: https://doi.org/10.1130/B26373.1 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 This study used high-resolution, two- and three-dimensional, seismic-reflection data from the Niger Delta, Sichuan Basin, and Magdalena Basin to analyze displacement profile patterns and scaling relationships between the maximum displacement and length (Dmax v. L) of thrust faults, referred to as displacement-length scaling relationships. The thrust faults mapped in this study exhibited highly variable displacement profiles, both in terms of shape and overall magnitude of displacement. A robust power-law displacement-length scaling relationship was obtained for all three data sets combined, yielding a scaling relationship (n = 0.87) close to the linear fit most often observed for normal faults and thrust faults. At the regional scale, however, a robust fit was obtained only for the Sichuan Basin, and with a nonlinear displacement-length scaling relationship (n = 0.58) suggesting scale dependence in this region. Many displacement profiles exhibited steep displacement gradients at the fault tips and shallow gradients in between, often with multiple maxima. These features are interpreted with conceptual growth models for thrust faults: hard linkage and soft linkage fault interaction models, a detachment linkage fault interaction model, and an overburden-limited, fault-growth model. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.