Palaeozoic – Early Mesozoic geological history of the Antarctic Peninsula and correlations with Patagonia: Kinematic reconstructions of the proto-Pacific margin of Gondwana
The Antarctic Peninsula preserves geological evidence of a long-lived continental margin with intrusive, volcaniclastic and accretionary complexes indicating a convergent margin setting from at least the Cambrian to the Cenozoic. We examine the poorly understood units and successions from the Palaeo...
Published in: | Earth-Science Reviews |
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Language: | English |
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Elsevier
2023
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Online Access: | http://nora.nerc.ac.uk/id/eprint/531514/ https://nora.nerc.ac.uk/id/eprint/531514/1/1-s2.0-S001282522200349X-main-1.pdf https://www.sciencedirect.com/science/article/pii/S001282522200349X |
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ftnerc:oai:nora.nerc.ac.uk:531514 2023-05-15T13:41:46+02:00 Palaeozoic – Early Mesozoic geological history of the Antarctic Peninsula and correlations with Patagonia: Kinematic reconstructions of the proto-Pacific margin of Gondwana Riley, Teal R. Burton-Johnson, Alex Flowerdew, Michael J. Poblete, Fernando Castillo, Paula Hervé, Francisco Leat, Philip T. Millar, Ian L. Bastias, Joaquin Whitehouse, Martin J. 2023-01 text http://nora.nerc.ac.uk/id/eprint/531514/ https://nora.nerc.ac.uk/id/eprint/531514/1/1-s2.0-S001282522200349X-main-1.pdf https://www.sciencedirect.com/science/article/pii/S001282522200349X en eng Elsevier https://nora.nerc.ac.uk/id/eprint/531514/1/1-s2.0-S001282522200349X-main-1.pdf Riley, Teal R. orcid:0000-0002-3333-5021 Burton-Johnson, Alex orcid:0000-0003-2208-0075 Flowerdew, Michael J.; Poblete, Fernando; Castillo, Paula; Hervé, Francisco; Leat, Philip T.; Millar, Ian L.; Bastias, Joaquin; Whitehouse, Martin J. 2023 Palaeozoic – Early Mesozoic geological history of the Antarctic Peninsula and correlations with Patagonia: Kinematic reconstructions of the proto-Pacific margin of Gondwana. Earth-Science Reviews, 236, 104265. https://doi.org/10.1016/j.earscirev.2022.104265 <https://doi.org/10.1016/j.earscirev.2022.104265> cc_by_4 CC-BY Publication - Article PeerReviewed 2023 ftnerc https://doi.org/10.1016/j.earscirev.2022.104265 2023-02-04T19:52:47Z The Antarctic Peninsula preserves geological evidence of a long-lived continental margin with intrusive, volcaniclastic and accretionary complexes indicating a convergent margin setting from at least the Cambrian to the Cenozoic. We examine the poorly understood units and successions from the Palaeozoic to the Early Mesozoic and develop detailed kinematic reconstructions for this section of the margin. We use existing geochronology, along with newly presented Usingle bondPb detrital zircon geochronology, combined with detailed field evidence to develop correlations between geological units and tectonic events across Patagonia and the proto-Antarctic Peninsula. The continental margin of Gondwana/Pangea was a convergent margin setting punctuated by crustal block translation, deformation, magmatic pulses (flare-ups) and development of thick accretionary complexes. These events are strongly linked to subducting slab dynamics and a para-autochthonous model is proposed for the long-lived margin. Major magmatic pulses are evident during the Ordovician (Famatinian) and Permian, and the magmatic record is reflected in the detrital zircon age profiles of metasedimentary successions of the northern Antarctic Peninsula and Tierra del Fuego. Major tectonic events during the Carboniferous – Permian (Gondwanide Orogeny) and Triassic (Chonide Event – Peninsula Orogeny) are recognised across the Antarctic Peninsula – Patagonia and are correlated to potential terrane suturing and flat slab dynamics. Our kinematic reconstructions developed in GPlates, combined with geological field relationships have allowed us to model the locus of magmatism relative to the active margin and also the likely source for thick sedimentary successions. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Tierra del Fuego Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Antarctic Peninsula Patagonia Pacific Earth-Science Reviews 236 104265 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
The Antarctic Peninsula preserves geological evidence of a long-lived continental margin with intrusive, volcaniclastic and accretionary complexes indicating a convergent margin setting from at least the Cambrian to the Cenozoic. We examine the poorly understood units and successions from the Palaeozoic to the Early Mesozoic and develop detailed kinematic reconstructions for this section of the margin. We use existing geochronology, along with newly presented Usingle bondPb detrital zircon geochronology, combined with detailed field evidence to develop correlations between geological units and tectonic events across Patagonia and the proto-Antarctic Peninsula. The continental margin of Gondwana/Pangea was a convergent margin setting punctuated by crustal block translation, deformation, magmatic pulses (flare-ups) and development of thick accretionary complexes. These events are strongly linked to subducting slab dynamics and a para-autochthonous model is proposed for the long-lived margin. Major magmatic pulses are evident during the Ordovician (Famatinian) and Permian, and the magmatic record is reflected in the detrital zircon age profiles of metasedimentary successions of the northern Antarctic Peninsula and Tierra del Fuego. Major tectonic events during the Carboniferous – Permian (Gondwanide Orogeny) and Triassic (Chonide Event – Peninsula Orogeny) are recognised across the Antarctic Peninsula – Patagonia and are correlated to potential terrane suturing and flat slab dynamics. Our kinematic reconstructions developed in GPlates, combined with geological field relationships have allowed us to model the locus of magmatism relative to the active margin and also the likely source for thick sedimentary successions. |
format |
Article in Journal/Newspaper |
author |
Riley, Teal R. Burton-Johnson, Alex Flowerdew, Michael J. Poblete, Fernando Castillo, Paula Hervé, Francisco Leat, Philip T. Millar, Ian L. Bastias, Joaquin Whitehouse, Martin J. |
spellingShingle |
Riley, Teal R. Burton-Johnson, Alex Flowerdew, Michael J. Poblete, Fernando Castillo, Paula Hervé, Francisco Leat, Philip T. Millar, Ian L. Bastias, Joaquin Whitehouse, Martin J. Palaeozoic – Early Mesozoic geological history of the Antarctic Peninsula and correlations with Patagonia: Kinematic reconstructions of the proto-Pacific margin of Gondwana |
author_facet |
Riley, Teal R. Burton-Johnson, Alex Flowerdew, Michael J. Poblete, Fernando Castillo, Paula Hervé, Francisco Leat, Philip T. Millar, Ian L. Bastias, Joaquin Whitehouse, Martin J. |
author_sort |
Riley, Teal R. |
title |
Palaeozoic – Early Mesozoic geological history of the Antarctic Peninsula and correlations with Patagonia: Kinematic reconstructions of the proto-Pacific margin of Gondwana |
title_short |
Palaeozoic – Early Mesozoic geological history of the Antarctic Peninsula and correlations with Patagonia: Kinematic reconstructions of the proto-Pacific margin of Gondwana |
title_full |
Palaeozoic – Early Mesozoic geological history of the Antarctic Peninsula and correlations with Patagonia: Kinematic reconstructions of the proto-Pacific margin of Gondwana |
title_fullStr |
Palaeozoic – Early Mesozoic geological history of the Antarctic Peninsula and correlations with Patagonia: Kinematic reconstructions of the proto-Pacific margin of Gondwana |
title_full_unstemmed |
Palaeozoic – Early Mesozoic geological history of the Antarctic Peninsula and correlations with Patagonia: Kinematic reconstructions of the proto-Pacific margin of Gondwana |
title_sort |
palaeozoic – early mesozoic geological history of the antarctic peninsula and correlations with patagonia: kinematic reconstructions of the proto-pacific margin of gondwana |
publisher |
Elsevier |
publishDate |
2023 |
url |
http://nora.nerc.ac.uk/id/eprint/531514/ https://nora.nerc.ac.uk/id/eprint/531514/1/1-s2.0-S001282522200349X-main-1.pdf https://www.sciencedirect.com/science/article/pii/S001282522200349X |
geographic |
Antarctic The Antarctic Antarctic Peninsula Patagonia Pacific |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Patagonia Pacific |
genre |
Antarc* Antarctic Antarctic Peninsula Tierra del Fuego |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Tierra del Fuego |
op_relation |
https://nora.nerc.ac.uk/id/eprint/531514/1/1-s2.0-S001282522200349X-main-1.pdf Riley, Teal R. orcid:0000-0002-3333-5021 Burton-Johnson, Alex orcid:0000-0003-2208-0075 Flowerdew, Michael J.; Poblete, Fernando; Castillo, Paula; Hervé, Francisco; Leat, Philip T.; Millar, Ian L.; Bastias, Joaquin; Whitehouse, Martin J. 2023 Palaeozoic – Early Mesozoic geological history of the Antarctic Peninsula and correlations with Patagonia: Kinematic reconstructions of the proto-Pacific margin of Gondwana. Earth-Science Reviews, 236, 104265. https://doi.org/10.1016/j.earscirev.2022.104265 <https://doi.org/10.1016/j.earscirev.2022.104265> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.earscirev.2022.104265 |
container_title |
Earth-Science Reviews |
container_volume |
236 |
container_start_page |
104265 |
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1766157686965010432 |