Case for the Gamburtsev Subglacial Mountains of East Antarctica originating by Mid-Carboniferous shortening of an intracratonic basin
The present drainage of East Antarctica, with ice radiating from a central dome draped over the thick crust of the Gamburtsev Subglacial Mountains, recapitulates the Early Permian scene, including the south polar paleolatiude. The ancestral Gamburtsev Subglacial Mountains and a central Australian up...
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| Format: | Article in Journal/Newspaper |
| Language: | English |
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1994
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| Online Access: | https://researchers.mq.edu.au/en/publications/bce66c73-4e9d-4ab5-95b4-c762b3b88c69 https://doi.org/10.1130/0091-7613(1994)022<0593:CFTGSM>2.3.CO;2 http://www.scopus.com/inward/record.url?scp=84879887926&partnerID=8YFLogxK |
| Summary: | The present drainage of East Antarctica, with ice radiating from a central dome draped over the thick crust of the Gamburtsev Subglacial Mountains, recapitulates the Early Permian scene, including the south polar paleolatiude. The ancestral Gamburtsev Subglacial Mountains and a central Australian upland may have formed because of long-distance stress from the Variscan collision acting on zones of weak crust attenuated during prolonged subsidence of intracratonic basins. The mid-Carboniferous inception of widespread glaciation was possibly linked with vast uplands in northern and southern Pangea through the effects of Variscan topography and the removal of atmospheric CO 2 during accelerated erosion and weathering. -from Author |
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