Implications of a Bengal Fan-type deposit in the Paleozoic Lachlan fold belt of southeastern Australia

Research Article| November 01, 1992 Implications of a Bengal Fan-type deposit in the Paleozoic Lachlan fold belt of southeastern Australia Christopher L. Fergusson; Christopher L. Fergusson 1Department of Geology, University of Wollongong, Locked Bag 8844, South Coast Mail Center, New South Wales 2521, Australia Search for other works by this author on: GSW Google Scholar Peter J. Coney Peter J. Coney 2Department of Geosciences, University of Arizona, Tucson, Arizona 85721 Search for other works by this author on: GSW Google Scholar Author and Article Information Christopher L. Fergusson 1Department of Geology, University of Wollongong, Locked Bag 8844, South Coast Mail Center, New South Wales 2521, Australia Peter J. Coney 2Department of Geosciences, University of Arizona, Tucson, Arizona 85721 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1992) 20 (11): 1047–1049. https://doi.org/10.1130/0091-7613(1992)020<1047:IOABFT>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 Christopher L. Fergusson, Peter J. Coney; Implications of a Bengal Fan-type deposit in the Paleozoic Lachlan fold belt of southeastern Australia. Geology 1992;; 20 (11): 1047–1049. doi: https://doi.org/10.1130/0091-7613(1992)020<1047:IOABFT>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 Ordovician rocks of the Lachlan fold belt contain a continental-margin submarine fan that in its undeformed state has a minimum area of 1.2 x 106 km2, comparable to the size of the Bengal Fan. Cambrian and Ordovician mafic volcanic seamount chains in the Lachlan fold belt are analogous to the Ninetyeast Ridge and other seamounts associated with the Bengal Fan in the northeastern Indian Ocean. Basement of the Lachlan fold belt, by analogy with that of the Bengal Fan, may have been ocean floor with an overlying continental-rise prism that developed after the breakup of Laurentia and eastern Gondwana to form the ancestral Pacific Ocean in the latest Precambrian. The continental-rise prism was imbricated during Silurian-Devonian deformation to form the lower crust that provided source rocks for the Silurian to Carboniferous granites. 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.