Record of the Damaran Khomas Hochland accretionary prism in central Namibia: Refutation of an "ensialic" origin of aLate Proterozoic orogenic belt

Research Article| May 01, 1991 Record of the Damaran Khomas Hochland accretionary prism in central Namibia: Refutation of an "ensialic" origin of aLate Proterozoic orogenic belt Peter A. Kukla; Peter A. Kukla 1Department of Geology, University of the Witwatersrand, WITS 2050, Johannesburg, South Africa Search for other works by this author on: GSW Google Scholar Ian G. Stanistreet Ian G. Stanistreet 1Department of Geology, University of the Witwatersrand, WITS 2050, Johannesburg, South Africa Search for other works by this author on: GSW Google Scholar Geology (1991) 19 (5): 473–476. https://doi.org/10.1130/0091-7613(1991)019<0473:ROTDKH>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 MailTo Tools Icon Tools Get Permissions Search Site Citation Peter A. Kukla, Ian G. Stanistreet; Record of the Damaran Khomas Hochland accretionary prism in central Namibia: Refutation of an "ensialic" origin of aLate Proterozoic orogenic belt. Geology 1991;; 19 (5): 473–476. doi: https://doi.org/10.1130/0091-7613(1991)019<0473:ROTDKH>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 Sedimentation patterns in multiply deformed and highly metamorphosed sedimentary rocks of the Khomas trough indicate deposition on an elongate submarine-fan system that developed in a Late Proterozoic depository forming part of the inland branch of the Damara orogen. Structural patterns exhibit mainly compressional features and indicate that the Damara Sequence metasedimentary rocks and interposed amphibolites, metagabbros, and ultramafic rocks lie within several imbricate thrust slices, floored by relatively thick pelitic units. The highly deformed Matchless amphibolite and associated pelagic sedimentary rocks are interpreted as the upper parts of an oceanic crustal sequence. These features are explained in a model that interprets the sediments as accumulating in a Late Proterozoic accretionary prism developed during convergence of the Congo and Kalahari cratons. Preservation of original sedimentary structures and coherent structural profiles allow the documentation of what may be the best preserved Precambrian accretionary prism yet described. Our interpretation helps to resolve some earlier speculation concerning an "ensialic" origin for this fold and thrust belt. 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.