Chemical U-Th-Pb monazite dating of the Cambrian Tyennan Orogeny, Tasmania
Chemical U-Th-Pb dating of monazite from 12 schists throughout western and central Tasmania define a peak metamorphic age of ca 510 Ma. This age is very close to the age of arc-continent collision and ophiolite emplacement, implying very rapid uplift and cooling. To the south, along the western marg...
Published in: | Australian Journal of Earth Sciences |
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2007
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Online Access: | https://doi.org/10.1080/08120090701305269 http://ecite.utas.edu.au/51584 |
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ftunivtasecite:oai:ecite.utas.edu.au:51584 2023-05-15T13:40:51+02:00 Chemical U-Th-Pb monazite dating of the Cambrian Tyennan Orogeny, Tasmania Berry, RF Chmielowski, RM Steele, DA Meffre, S 2007 https://doi.org/10.1080/08120090701305269 http://ecite.utas.edu.au/51584 en eng Taylor & Francis http://dx.doi.org/10.1080/08120090701305269 Berry, RF and Chmielowski, RM and Steele, DA and Meffre, S, Chemical U-Th-Pb monazite dating of the Cambrian Tyennan Orogeny, Tasmania, Australian Journal of Earth Sciences, 54, (5) pp. 757-771. ISSN 0812-0099 (2007) [Refereed Article] http://ecite.utas.edu.au/51584 Earth Sciences Geology Geochronology Refereed Article PeerReviewed 2007 ftunivtasecite https://doi.org/10.1080/08120090701305269 2019-12-13T21:25:32Z Chemical U-Th-Pb dating of monazite from 12 schists throughout western and central Tasmania define a peak metamorphic age of ca 510 Ma. This age is very close to the age of arc-continent collision and ophiolite emplacement, implying very rapid uplift and cooling. To the south, along the western margin of the South Tasman Rise, metamorphism occurred later at 495 Ma, which correlates with a late stage of the Ross Orogeny, Antarctica. The Tyennan Orogeny in Tasmania has a three-stage history similar in age to the Delamerian Orogeny in South Australia. However, the Tyennan Orogeny only produced metamorphic rocks during the early stage associated with ophiolite obduction at 515-505 Ma. The intense compressional event recognised in the Delamerian and Ross Orogeny at 500-495 Ma is correlated with a mild basin inversion in Tasmania, and no metamorphism on mainland Tasmania has been recognised associated with this event. The western margin of the South Tasman Rise is a fragment of the Ross Orogen and does not correlate directly with Tasmania. Article in Journal/Newspaper Antarc* Antarctica eCite UTAS (University of Tasmania) South Tasman Rise ENVELOPE(148.000,148.000,-47.500,-47.500) Australian Journal of Earth Sciences 54 5 757 771 |
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Open Polar |
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eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Geology Geochronology |
spellingShingle |
Earth Sciences Geology Geochronology Berry, RF Chmielowski, RM Steele, DA Meffre, S Chemical U-Th-Pb monazite dating of the Cambrian Tyennan Orogeny, Tasmania |
topic_facet |
Earth Sciences Geology Geochronology |
description |
Chemical U-Th-Pb dating of monazite from 12 schists throughout western and central Tasmania define a peak metamorphic age of ca 510 Ma. This age is very close to the age of arc-continent collision and ophiolite emplacement, implying very rapid uplift and cooling. To the south, along the western margin of the South Tasman Rise, metamorphism occurred later at 495 Ma, which correlates with a late stage of the Ross Orogeny, Antarctica. The Tyennan Orogeny in Tasmania has a three-stage history similar in age to the Delamerian Orogeny in South Australia. However, the Tyennan Orogeny only produced metamorphic rocks during the early stage associated with ophiolite obduction at 515-505 Ma. The intense compressional event recognised in the Delamerian and Ross Orogeny at 500-495 Ma is correlated with a mild basin inversion in Tasmania, and no metamorphism on mainland Tasmania has been recognised associated with this event. The western margin of the South Tasman Rise is a fragment of the Ross Orogen and does not correlate directly with Tasmania. |
format |
Article in Journal/Newspaper |
author |
Berry, RF Chmielowski, RM Steele, DA Meffre, S |
author_facet |
Berry, RF Chmielowski, RM Steele, DA Meffre, S |
author_sort |
Berry, RF |
title |
Chemical U-Th-Pb monazite dating of the Cambrian Tyennan Orogeny, Tasmania |
title_short |
Chemical U-Th-Pb monazite dating of the Cambrian Tyennan Orogeny, Tasmania |
title_full |
Chemical U-Th-Pb monazite dating of the Cambrian Tyennan Orogeny, Tasmania |
title_fullStr |
Chemical U-Th-Pb monazite dating of the Cambrian Tyennan Orogeny, Tasmania |
title_full_unstemmed |
Chemical U-Th-Pb monazite dating of the Cambrian Tyennan Orogeny, Tasmania |
title_sort |
chemical u-th-pb monazite dating of the cambrian tyennan orogeny, tasmania |
publisher |
Taylor & Francis |
publishDate |
2007 |
url |
https://doi.org/10.1080/08120090701305269 http://ecite.utas.edu.au/51584 |
long_lat |
ENVELOPE(148.000,148.000,-47.500,-47.500) |
geographic |
South Tasman Rise |
geographic_facet |
South Tasman Rise |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
http://dx.doi.org/10.1080/08120090701305269 Berry, RF and Chmielowski, RM and Steele, DA and Meffre, S, Chemical U-Th-Pb monazite dating of the Cambrian Tyennan Orogeny, Tasmania, Australian Journal of Earth Sciences, 54, (5) pp. 757-771. ISSN 0812-0099 (2007) [Refereed Article] http://ecite.utas.edu.au/51584 |
op_doi |
https://doi.org/10.1080/08120090701305269 |
container_title |
Australian Journal of Earth Sciences |
container_volume |
54 |
container_issue |
5 |
container_start_page |
757 |
op_container_end_page |
771 |
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1766141497289211904 |