Neoproterozoic rifting in the Southern Georgina Basin, Central Australia: Implications for reconstructing Australia in Rodinia

Title:
Neoproterozoic rifting in the Southern Georgina Basin, Central Australia: Implications for reconstructing Australia in Rodinia
Authors:
Greene, David C.
Citation:
Greene, D. C. (2010). Neoproterozoic rifting in the southern georgina basin, central australia: Implications for reconstructing australia in rodinia.(author abstract). Tectonics, 29(5), TC5010(20).
Publisher:
Tectonics
DATE ISSUED:
Oct-2010
PERMANENT LINK:
http://hdl.handle.net/2374.DEN/4981; http://hdl.handle.net/2374
Type:
Article
Language:
en_US
Description:
A system of northwest striking Neoproterozoic rift basins underlies Paleozoic strata in the southern Georgina Basin of central Australia. Normal faults bounding these rift basins were selectively reactivated during the mid-Paleozoic Alice Springs Orogeny and are now expressed as high-angle reverse faults that invert the preexisting rift basins. Exhumed and eroded rift basin remnants are present in the hanging wall of the Oomoolmilla, Lucy Creek, Tarlton, and Toomba reverse faults, and rift basins may be preserved in the subsurface beneath the Toko Syncline and Burke River Structural Belt. Rift basin fill indicates two periods of extension: a major rift-forming episode between approximately 700 and 650 Ma (coeval with Sturtian glacial deposits) and a second episode of extension at approximately 600 Ma (coeval with Marinoan glacial deposits). This northwest striking rift system in central Australia supports results from other regions, indicating that the Neoproterozoic continental margin of Australia consisted of northwest striking rift segments offset by northeast striking transform faults. Such a configuration is geometrically incompatible with a Laurentian continental margin consisting of northeast striking rift segments and conflicts with reconstructions such as SWEAT and AUSWUS that match Australia with western Laurentia in the Rodinia supercontinent.
ISSN:
02787407
Appears in Collections:
Faculty Publications

Full metadata record

DC FieldValue Language
dc.contributor.authorGreene, David C.en
dc.date.accessioned2013-01-02T14:47:17Zen
dc.date.accessioned2013-12-18T21:07:13Z-
dc.date.available2013-01-02T14:47:17Zen
dc.date.available2013-12-18T21:07:13Z-
dc.date.created2010-10en
dc.date.issued2010-10en
dc.identifier.citationGreene, D. C. (2010). Neoproterozoic rifting in the southern georgina basin, central australia: Implications for reconstructing australia in rodinia.(author abstract). Tectonics, 29(5), TC5010(20).en_US
dc.identifier.issn02787407en
dc.identifier.urihttp://hdl.handle.net/2374.DEN/4981en
dc.identifier.urihttp://hdl.handle.net/2374-
dc.descriptionA system of northwest striking Neoproterozoic rift basins underlies Paleozoic strata in the southern Georgina Basin of central Australia. Normal faults bounding these rift basins were selectively reactivated during the mid-Paleozoic Alice Springs Orogeny and are now expressed as high-angle reverse faults that invert the preexisting rift basins. Exhumed and eroded rift basin remnants are present in the hanging wall of the Oomoolmilla, Lucy Creek, Tarlton, and Toomba reverse faults, and rift basins may be preserved in the subsurface beneath the Toko Syncline and Burke River Structural Belt. Rift basin fill indicates two periods of extension: a major rift-forming episode between approximately 700 and 650 Ma (coeval with Sturtian glacial deposits) and a second episode of extension at approximately 600 Ma (coeval with Marinoan glacial deposits). This northwest striking rift system in central Australia supports results from other regions, indicating that the Neoproterozoic continental margin of Australia consisted of northwest striking rift segments offset by northeast striking transform faults. Such a configuration is geometrically incompatible with a Laurentian continental margin consisting of northeast striking rift segments and conflicts with reconstructions such as SWEAT and AUSWUS that match Australia with western Laurentia in the Rodinia supercontinent.en_US
dc.language.isoen_USen_US
dc.publisherTectonicsen_US
dc.relation.ispartofFaculty Publicationsen_US
dc.titleNeoproterozoic rifting in the Southern Georgina Basin, Central Australia: Implications for reconstructing Australia in Rodiniaen_US
dc.typeArticleen_US
dc.contributor.institutionDenison Universityen_US
dc.date.digitized2013-01-02en
dc.contributor.repositoryDenison Resource Commonsen_US
All Items in The Five Colleges of Ohio Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.