Kink detachment fold in the southwest Montana fold and thrust belt

Abstract

Research Article| February 01, 1988 Kink detachment fold in the southwest Montana fold and thrust belt Michael M. Mitchell; Michael M. Mitchell 1Department of Geological Sciences, University of Tennessee, Knoxville, Tennessee 37996-1410 Search for other works by this author on: GSW Google Scholar Nicholas B. Woodward Nicholas B. Woodward 1Department of Geological Sciences, University of Tennessee, Knoxville, Tennessee 37996-1410 Search for other works by this author on: GSW Google Scholar Author and Article Information Michael M. Mitchell 1Department of Geological Sciences, University of Tennessee, Knoxville, Tennessee 37996-1410 Nicholas B. Woodward 1Department of Geological Sciences, University of Tennessee, Knoxville, Tennessee 37996-1410 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1988) 16 (2): 162–165. https://doi.org/10.1130/0091-7613(1988)016<0162:KDFITS>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 Michael M. Mitchell, Nicholas B. Woodward; Kink detachment fold in the southwest Montana fold and thrust belt. Geology 1988;; 16 (2): 162–165. doi: https://doi.org/10.1130/0091-7613(1988)016<0162:KDFITS>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 The Hossfeldt anticline in the southwest Montana thrust belt is characterized by a kink geometry and probably overlies a thrust detachment at depth. The mesofabric distribution in the limbs documents that the eastern overturned limb has undergone most of the rotation and internal deformation during folding, leaving the gently dipping western limb virtually undeformed. The anticline exhibits unique mesofabrics in its hinge region that require a pinned anticlinal hinge during its evolution. The half-wavelength of the Hossfeldt anticline-Eustis syncline pair coincides with that predicted from buckling theory, if one considers the massive carbonates of the Paleozoic section as a competent beam. Although the geometry and mesofabric distribution of the Hossfeldt anticline satisfy the geometric requirements of either a fault-propagation fold or a detachment kink fold, the buckling wavelength strongly suggests that its origin was as a kink-buckle fold above a flat detachment rather than as a fault-propagation fold above a thrust ramp. 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.