The Triassic–Cretaceous Tectonomagmatic History of the Antarctic Peninsula constrained by Geochronology, Thermochronology and Isotope Geochemistry
This thesis presents new geochronological, thermochronological, geochemical and isotopic data from igneous and meta-igneous rock samples from the Antarctic Peninsula during the Mesozoic. This crustal block, part of West Antarctica, has a long tectonic and magmatic history, complex topography and dis...
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Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
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Université de Genève
2020
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Online Access: | https://archive-ouverte.unige.ch/unige:143280 https://doi.org/10.13097/archive-ouverte/unige:143280 |
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ftunivgeneve:oai:unige.ch:aou:unige:143280 2023-10-01T03:51:12+02:00 The Triassic–Cretaceous Tectonomagmatic History of the Antarctic Peninsula constrained by Geochronology, Thermochronology and Isotope Geochemistry Bastias Silva, Miguel Joaquin Spikings, Richard Alan 2020 https://archive-ouverte.unige.ch/unige:143280 https://doi.org/10.13097/archive-ouverte/unige:143280 eng eng Université de Genève https://archive-ouverte.unige.ch/unige:143280 unige:143280 doi:10.13097/archive-ouverte/unige:143280 urn:nbn:ch:unige-1432807 info:eu-repo/semantics/openAccess info:eu-repo/classification/ddc/550 Antarctic Peninsula Arc magmatism Active margin Gondwana West Antarctica Patagonia info:eu-repo/semantics/doctoralThesis Text Thèse 2020 ftunivgeneve https://doi.org/10.13097/archive-ouverte/unige:143280 2023-09-07T07:59:24Z This thesis presents new geochronological, thermochronological, geochemical and isotopic data from igneous and meta-igneous rock samples from the Antarctic Peninsula during the Mesozoic. This crustal block, part of West Antarctica, has a long tectonic and magmatic history, complex topography and distinct geological provinces. Furthermore, the Antarctic Peninsula has been affected by complex convergent margin processes and defies simple classification as a convergent margin, magmatic arc or rifted continental margin. A new quantitative dataset is presented that includes analyses of (i) U-Pb zircon dates, (ii) zircon Lu-Hf isotopes, (iii) zircon O isotopes, (iv) Sr-Nd-Pb isotopes, (v) U-Pb apatite thermochronology and (vi) whole-rock geochemistry. This new dataset provides solid foundations for investigating the geological history of the Antarctic Peninsula and southwestern Gondwana, and they are used to construct a new model for the tectonic evolution of the margin of the Antarctic Peninsula and Patagonia during the late Palaeozoic and Mesozoic. Doctoral or Postdoctoral Thesis Antarc* Antarctic Antarctic Peninsula Antarctica West Antarctica Université de Genève: Archive ouverte UNIGE Antarctic Antarctic Peninsula Patagonia The Antarctic West Antarctica |
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Open Polar |
collection |
Université de Genève: Archive ouverte UNIGE |
op_collection_id |
ftunivgeneve |
language |
English |
topic |
info:eu-repo/classification/ddc/550 Antarctic Peninsula Arc magmatism Active margin Gondwana West Antarctica Patagonia |
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info:eu-repo/classification/ddc/550 Antarctic Peninsula Arc magmatism Active margin Gondwana West Antarctica Patagonia Bastias Silva, Miguel Joaquin The Triassic–Cretaceous Tectonomagmatic History of the Antarctic Peninsula constrained by Geochronology, Thermochronology and Isotope Geochemistry |
topic_facet |
info:eu-repo/classification/ddc/550 Antarctic Peninsula Arc magmatism Active margin Gondwana West Antarctica Patagonia |
description |
This thesis presents new geochronological, thermochronological, geochemical and isotopic data from igneous and meta-igneous rock samples from the Antarctic Peninsula during the Mesozoic. This crustal block, part of West Antarctica, has a long tectonic and magmatic history, complex topography and distinct geological provinces. Furthermore, the Antarctic Peninsula has been affected by complex convergent margin processes and defies simple classification as a convergent margin, magmatic arc or rifted continental margin. A new quantitative dataset is presented that includes analyses of (i) U-Pb zircon dates, (ii) zircon Lu-Hf isotopes, (iii) zircon O isotopes, (iv) Sr-Nd-Pb isotopes, (v) U-Pb apatite thermochronology and (vi) whole-rock geochemistry. This new dataset provides solid foundations for investigating the geological history of the Antarctic Peninsula and southwestern Gondwana, and they are used to construct a new model for the tectonic evolution of the margin of the Antarctic Peninsula and Patagonia during the late Palaeozoic and Mesozoic. |
author2 |
Spikings, Richard Alan |
format |
Doctoral or Postdoctoral Thesis |
author |
Bastias Silva, Miguel Joaquin |
author_facet |
Bastias Silva, Miguel Joaquin |
author_sort |
Bastias Silva, Miguel Joaquin |
title |
The Triassic–Cretaceous Tectonomagmatic History of the Antarctic Peninsula constrained by Geochronology, Thermochronology and Isotope Geochemistry |
title_short |
The Triassic–Cretaceous Tectonomagmatic History of the Antarctic Peninsula constrained by Geochronology, Thermochronology and Isotope Geochemistry |
title_full |
The Triassic–Cretaceous Tectonomagmatic History of the Antarctic Peninsula constrained by Geochronology, Thermochronology and Isotope Geochemistry |
title_fullStr |
The Triassic–Cretaceous Tectonomagmatic History of the Antarctic Peninsula constrained by Geochronology, Thermochronology and Isotope Geochemistry |
title_full_unstemmed |
The Triassic–Cretaceous Tectonomagmatic History of the Antarctic Peninsula constrained by Geochronology, Thermochronology and Isotope Geochemistry |
title_sort |
triassic–cretaceous tectonomagmatic history of the antarctic peninsula constrained by geochronology, thermochronology and isotope geochemistry |
publisher |
Université de Genève |
publishDate |
2020 |
url |
https://archive-ouverte.unige.ch/unige:143280 https://doi.org/10.13097/archive-ouverte/unige:143280 |
geographic |
Antarctic Antarctic Peninsula Patagonia The Antarctic West Antarctica |
geographic_facet |
Antarctic Antarctic Peninsula Patagonia The Antarctic West Antarctica |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica West Antarctica |
op_relation |
https://archive-ouverte.unige.ch/unige:143280 unige:143280 doi:10.13097/archive-ouverte/unige:143280 urn:nbn:ch:unige-1432807 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.13097/archive-ouverte/unige:143280 |
_version_ |
1778533037086081024 |