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Tasmanian Tertiary basalts, the Balleny plume, and opening of the Tasman Sea (southwest Pacific Ocean)
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1993
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VolcanologyEngineeringPaleoceanographyOceanographyMarine Geophysical DataEarth ScienceRuth LanyonGeological DataGeochronologyMarine GeologyTasmanian Tertiary BasaltsMagmatismGeologyMantle GeochemistryTectonicsBalleny PlumeStructural GeologySouthwest Pacific OceanEconomic GeologyExploration GeologyEarth SciencesGeochemistryRuth Lanyon 1GeologyPetrology
Research Article| June 01, 1993 Tasmanian Tertiary basalts, the Balleny plume, and opening of the Tasman Sea (southwest Pacific Ocean) Ruth Lanyon; Ruth Lanyon 1Geology Department, University of Tasmania, GPO Box 252C, Hobart, Tasmania 7001, Australia Search for other works by this author on: GSW Google Scholar Rick Varne; Rick Varne 1Geology Department, University of Tasmania, GPO Box 252C, Hobart, Tasmania 7001, Australia Search for other works by this author on: GSW Google Scholar Anthony J. Crawford Anthony J. Crawford 1Geology Department, University of Tasmania, GPO Box 252C, Hobart, Tasmania 7001, Australia Search for other works by this author on: GSW Google Scholar Author and Article Information Ruth Lanyon 1Geology Department, University of Tasmania, GPO Box 252C, Hobart, Tasmania 7001, Australia Rick Varne 1Geology Department, University of Tasmania, GPO Box 252C, Hobart, Tasmania 7001, Australia Anthony J. Crawford 1Geology Department, University of Tasmania, GPO Box 252C, Hobart, Tasmania 7001, Australia Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1993) 21 (6): 555–558. https://doi.org/10.1130/0091-7613(1993)021<0555:TTBTBP>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 Ruth Lanyon, Rick Varne, Anthony J. Crawford; Tasmanian Tertiary basalts, the Balleny plume, and opening of the Tasman Sea (southwest Pacific Ocean). Geology 1993;; 21 (6): 555–558. doi: https://doi.org/10.1130/0091-7613(1993)021<0555:TTBTBP>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 A seamount chain extending from the Balleny Islands to the East Tasman Plateau records the passage of the Australian and Antarctic plates over the Balleny plume. A poorly known seamount chain trending northeast from the East Tasman Plateau across the Tasman Sea to the western edge off the Lord Howe Rise represents a possible older trace of the plume. Late Cretaceous inception of this plume, and of another beneath Marie Byrd Land on the stationary Antarctic plate, may have been involved in the initiation of spreading at ∼80 Ma in the Tasman Sea and southwest Pacific Ocean. The Balleny plume isotopic and trace element signature, indicative of a high U/Pb mantle source, is recorded in Cenozoic Tasmanian basalts but is not present in the adjacent Victorian mafic lava-field province, located farther from the plume trace. 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.