Far-field continental backarc setting for the 1.80–1.67 Ga basins of northeastern Australia

Research Article| September 01, 2002 Far-field continental backarc setting for the 1.80–1.67 Ga basins of northeastern Australia David Giles; David Giles 1Australian Crustal Research Centre, School of Geosciences, Monash University, Melbourne 3800, Australia Search for other works by this author on: GSW Google Scholar Peter Betts; Peter Betts 1Australian Crustal Research Centre, School of Geosciences, Monash University, Melbourne 3800, Australia Search for other works by this author on: GSW Google Scholar Gordon Lister Gordon Lister 1Australian Crustal Research Centre, School of Geosciences, Monash University, Melbourne 3800, Australia Search for other works by this author on: GSW Google Scholar Author and Article Information David Giles 1Australian Crustal Research Centre, School of Geosciences, Monash University, Melbourne 3800, Australia Peter Betts 1Australian Crustal Research Centre, School of Geosciences, Monash University, Melbourne 3800, Australia Gordon Lister 1Australian Crustal Research Centre, School of Geosciences, Monash University, Melbourne 3800, Australia Publisher: Geological Society of America Received: 02 Dec 2001 Revision Received: 17 May 2002 Accepted: 21 May 2002 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2002) 30 (9): 823–826. https://doi.org/10.1130/0091-7613(2002)030<0823:FFCBSF>2.0.CO;2 Article history Received: 02 Dec 2001 Revision Received: 17 May 2002 Accepted: 21 May 2002 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation David Giles, Peter Betts, Gordon Lister; Far-field continental backarc setting for the 1.80–1.67 Ga basins of northeastern Australia. Geology 2002;; 30 (9): 823–826. doi: https://doi.org/10.1130/0091-7613(2002)030<0823:FFCBSF>2.0.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 1.80–1.67 Ga volcano-sedimentary basins of northeastern Australia, preserved in the Mount Isa inlier, McArthur basin, and Georgetown inlier, have been a cornerstone of nonuniformitarian “intracontinental” tectonic models of the Australian Proterozoic. However, geochronological data show that major tectonothermal events within the basins coincided with significant tectonic events that occurred along a complex convergent plate boundary that developed on the southern margin of the proto–Australian continent. These data imply a paired evolution, whereby thermal events were shared and plate-margin stresses were propagated (to 1500 km) into the plate interior. We propose a tectonic model in which the 1.80–1.67 Ga northeastern Australian basins occupied a wide region of intermittently extending continental crust in the overriding plate of a long-lived subduction system—effectively a far-field continental backarc setting. The combined effects of slab rollback, accretion, and enhanced subcontinental convection produced an environment of episodic extension, transient shortening, elevated heat flow, and magmatism. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.