Basin analysis in polymetamorphic terranes: An example from east Antarctica
U-Pb and Lu-Hf isotopic signatures of detrital and metamorphic zircon in granulite facies paragneiss from Kemp and MacRobertson lands, east Antarctica, distinguish two extensive Precambrian basins: (1) an Archaean basin deposited between c. 2570. Ma and c. 2500-2430. Ma, which extended across Kemp L...
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ftunivtasecite:oai:ecite.utas.edu.au:86052 2023-05-15T13:37:23+02:00 Basin analysis in polymetamorphic terranes: An example from east Antarctica Halpin, JA Daczko, NR Clarke, GL Murray, KR 2013 https://doi.org/10.1016/j.precamres.2013.03.015 http://ecite.utas.edu.au/86052 en eng Elsevier BV http://dx.doi.org/10.1016/j.precamres.2013.03.015 Halpin, JA and Daczko, NR and Clarke, GL and Murray, KR, Basin analysis in polymetamorphic terranes: An example from east Antarctica, Precambrian Research, 231 pp. 78-97. ISSN 0301-9268 (2013) [Refereed Article] http://ecite.utas.edu.au/86052 Earth Sciences Geology Basin Analysis Refereed Article PeerReviewed 2013 ftunivtasecite https://doi.org/10.1016/j.precamres.2013.03.015 2019-12-13T21:50:14Z U-Pb and Lu-Hf isotopic signatures of detrital and metamorphic zircon in granulite facies paragneiss from Kemp and MacRobertson lands, east Antarctica, distinguish two extensive Precambrian basins: (1) an Archaean basin deposited between c. 2570. Ma and c. 2500-2430. Ma, which extended across Kemp Land contiguous with equivalent paragneiss in the adjacent Napier Complex in Enderby Land; and (2) a late Mesoproterozoic basin deposited after c. 1110-1080. Ma in MacRobertson Land that extends into eastern Kemp Land, which also incorporates rocks currently exposed in the Eastern Ghats Province of India and the Prydz Bay region of east Antarctica. An unconformity that separates the Archaean and Mesoproterozoic sedimentary packages is near the Stillwell Hills. An eastward increase in the proportion of fragmentary detrital zircon in the younger package reflects proximity to late Mesoproterozoic volcanic sources. The Mesoproterozoic basin likely developed along an Andean-type margin to the Indo-Antarctic craton, possibly in a back-arc setting during the assembly of Rodinia. The widespread dissolution of zircon at c. 990-940. Ma during Rayner orogenesis in Kemp and MacRobertson lands largely precludes a traditional basin analysis via detrital geochronology, but the Hf isotopic ratio of metamorphic zircon precipitated following anatexis provides a homogenised signature, equivalent to a bulk-rock model age, which can be used as a stratigraphic proxy. This approach captures "hidden" provenance information to enable lithostratigraphic correlation in complex high-grade terranes. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Enderby Land Kemp Land MacRobertson Land Prydz Bay eCite UTAS (University of Tasmania) Antarctic East Antarctica Kemp Land ENVELOPE(57.500,57.500,-67.500,-67.500) MacRobertson Land ENVELOPE(65.000,65.000,-70.000,-70.000) Napier ENVELOPE(-58.440,-58.440,-62.167,-62.167) Prydz Bay Rayner ENVELOPE(-45.166,-45.166,-60.650,-60.650) Stillwell Hills ENVELOPE(59.467,59.467,-67.417,-67.417) Precambrian Research 231 78 97 |
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Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Geology Basin Analysis |
spellingShingle |
Earth Sciences Geology Basin Analysis Halpin, JA Daczko, NR Clarke, GL Murray, KR Basin analysis in polymetamorphic terranes: An example from east Antarctica |
topic_facet |
Earth Sciences Geology Basin Analysis |
description |
U-Pb and Lu-Hf isotopic signatures of detrital and metamorphic zircon in granulite facies paragneiss from Kemp and MacRobertson lands, east Antarctica, distinguish two extensive Precambrian basins: (1) an Archaean basin deposited between c. 2570. Ma and c. 2500-2430. Ma, which extended across Kemp Land contiguous with equivalent paragneiss in the adjacent Napier Complex in Enderby Land; and (2) a late Mesoproterozoic basin deposited after c. 1110-1080. Ma in MacRobertson Land that extends into eastern Kemp Land, which also incorporates rocks currently exposed in the Eastern Ghats Province of India and the Prydz Bay region of east Antarctica. An unconformity that separates the Archaean and Mesoproterozoic sedimentary packages is near the Stillwell Hills. An eastward increase in the proportion of fragmentary detrital zircon in the younger package reflects proximity to late Mesoproterozoic volcanic sources. The Mesoproterozoic basin likely developed along an Andean-type margin to the Indo-Antarctic craton, possibly in a back-arc setting during the assembly of Rodinia. The widespread dissolution of zircon at c. 990-940. Ma during Rayner orogenesis in Kemp and MacRobertson lands largely precludes a traditional basin analysis via detrital geochronology, but the Hf isotopic ratio of metamorphic zircon precipitated following anatexis provides a homogenised signature, equivalent to a bulk-rock model age, which can be used as a stratigraphic proxy. This approach captures "hidden" provenance information to enable lithostratigraphic correlation in complex high-grade terranes. |
format |
Article in Journal/Newspaper |
author |
Halpin, JA Daczko, NR Clarke, GL Murray, KR |
author_facet |
Halpin, JA Daczko, NR Clarke, GL Murray, KR |
author_sort |
Halpin, JA |
title |
Basin analysis in polymetamorphic terranes: An example from east Antarctica |
title_short |
Basin analysis in polymetamorphic terranes: An example from east Antarctica |
title_full |
Basin analysis in polymetamorphic terranes: An example from east Antarctica |
title_fullStr |
Basin analysis in polymetamorphic terranes: An example from east Antarctica |
title_full_unstemmed |
Basin analysis in polymetamorphic terranes: An example from east Antarctica |
title_sort |
basin analysis in polymetamorphic terranes: an example from east antarctica |
publisher |
Elsevier BV |
publishDate |
2013 |
url |
https://doi.org/10.1016/j.precamres.2013.03.015 http://ecite.utas.edu.au/86052 |
long_lat |
ENVELOPE(57.500,57.500,-67.500,-67.500) ENVELOPE(65.000,65.000,-70.000,-70.000) ENVELOPE(-58.440,-58.440,-62.167,-62.167) ENVELOPE(-45.166,-45.166,-60.650,-60.650) ENVELOPE(59.467,59.467,-67.417,-67.417) |
geographic |
Antarctic East Antarctica Kemp Land MacRobertson Land Napier Prydz Bay Rayner Stillwell Hills |
geographic_facet |
Antarctic East Antarctica Kemp Land MacRobertson Land Napier Prydz Bay Rayner Stillwell Hills |
genre |
Antarc* Antarctic Antarctica East Antarctica Enderby Land Kemp Land MacRobertson Land Prydz Bay |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Enderby Land Kemp Land MacRobertson Land Prydz Bay |
op_relation |
http://dx.doi.org/10.1016/j.precamres.2013.03.015 Halpin, JA and Daczko, NR and Clarke, GL and Murray, KR, Basin analysis in polymetamorphic terranes: An example from east Antarctica, Precambrian Research, 231 pp. 78-97. ISSN 0301-9268 (2013) [Refereed Article] http://ecite.utas.edu.au/86052 |
op_doi |
https://doi.org/10.1016/j.precamres.2013.03.015 |
container_title |
Precambrian Research |
container_volume |
231 |
container_start_page |
78 |
op_container_end_page |
97 |
_version_ |
1766090966439034880 |