Garnet-orthopyroxene assemblages as pressure-temperature indicators ...
Granulites from the Napier province\ Enderby Land Antarctica were metamorphosed at 900-950 °c and 7-10 kilobars durinq and subsequent to a major tectonothermal episode at 3000 million years before the present. Rocks presently exposed at the surface in southwestern Enderby Land indicate a regiona...
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University Of Tasmania
2023
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ftdatacite:10.25959/23210774.v1 2023-06-11T04:07:13+02:00 Garnet-orthopyroxene assemblages as pressure-temperature indicators ... Harley, SL 2023 https://dx.doi.org/10.25959/23210774.v1 https://figshare.utas.edu.au/articles/thesis/Garnet-orthopyroxene_assemblages_as_pressure-temperature_indicators/23210774/1 unknown University Of Tasmania https://dx.doi.org/10.25959/23210774 In Copyright http://rightsstatements.org/vocab/InC/1.0/ article-journal Text ScholarlyArticle Thesis 2023 ftdatacite https://doi.org/10.25959/23210774.v110.25959/23210774 2023-06-01T12:10:23Z Granulites from the Napier province\ Enderby Land Antarctica were metamorphosed at 900-950 °c and 7-10 kilobars durinq and subsequent to a major tectonothermal episode at 3000 million years before the present. Rocks presently exposed at the surface in southwestern Enderby Land indicate a regional increase in pressures of metamorphism towards the Scott Mountains - Casey Bay region where crustal thicknesses of at least 30 kilometres were attained at that time. Subsequent to the peak granulite facies metamorphic event the Napier province granulites underwent a prolonged phase of near-isobaric cooling at depth to P-T conditions of 650-700°C and 5-8 kilobars by 2500 million years before the present. A study of the pyroxene granulites from the Napier province demonstrates the near-isobaric cooling path in the development of a variety of retrograde corona textures involving the formation of garnet by reactions between pyroxenes plagioclase and opaque phases. Garnet-orthopyroxene bearing felsic and pelitic ... Thesis Antarc* Antarctica Casey Bay Enderby Land Scott Mountains DataCite Metadata Store (German National Library of Science and Technology) Casey Bay ENVELOPE(48.000,48.000,-67.500,-67.500) Napier ENVELOPE(-58.440,-58.440,-62.167,-62.167) Scott Mountains ENVELOPE(50.500,50.500,-67.500,-67.500) |
institution |
Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
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unknown |
description |
Granulites from the Napier province\ Enderby Land Antarctica were metamorphosed at 900-950 °c and 7-10 kilobars durinq and subsequent to a major tectonothermal episode at 3000 million years before the present. Rocks presently exposed at the surface in southwestern Enderby Land indicate a regional increase in pressures of metamorphism towards the Scott Mountains - Casey Bay region where crustal thicknesses of at least 30 kilometres were attained at that time. Subsequent to the peak granulite facies metamorphic event the Napier province granulites underwent a prolonged phase of near-isobaric cooling at depth to P-T conditions of 650-700°C and 5-8 kilobars by 2500 million years before the present. A study of the pyroxene granulites from the Napier province demonstrates the near-isobaric cooling path in the development of a variety of retrograde corona textures involving the formation of garnet by reactions between pyroxenes plagioclase and opaque phases. Garnet-orthopyroxene bearing felsic and pelitic ... |
format |
Thesis |
author |
Harley, SL |
spellingShingle |
Harley, SL Garnet-orthopyroxene assemblages as pressure-temperature indicators ... |
author_facet |
Harley, SL |
author_sort |
Harley, SL |
title |
Garnet-orthopyroxene assemblages as pressure-temperature indicators ... |
title_short |
Garnet-orthopyroxene assemblages as pressure-temperature indicators ... |
title_full |
Garnet-orthopyroxene assemblages as pressure-temperature indicators ... |
title_fullStr |
Garnet-orthopyroxene assemblages as pressure-temperature indicators ... |
title_full_unstemmed |
Garnet-orthopyroxene assemblages as pressure-temperature indicators ... |
title_sort |
garnet-orthopyroxene assemblages as pressure-temperature indicators ... |
publisher |
University Of Tasmania |
publishDate |
2023 |
url |
https://dx.doi.org/10.25959/23210774.v1 https://figshare.utas.edu.au/articles/thesis/Garnet-orthopyroxene_assemblages_as_pressure-temperature_indicators/23210774/1 |
long_lat |
ENVELOPE(48.000,48.000,-67.500,-67.500) ENVELOPE(-58.440,-58.440,-62.167,-62.167) ENVELOPE(50.500,50.500,-67.500,-67.500) |
geographic |
Casey Bay Napier Scott Mountains |
geographic_facet |
Casey Bay Napier Scott Mountains |
genre |
Antarc* Antarctica Casey Bay Enderby Land Scott Mountains |
genre_facet |
Antarc* Antarctica Casey Bay Enderby Land Scott Mountains |
op_relation |
https://dx.doi.org/10.25959/23210774 |
op_rights |
In Copyright http://rightsstatements.org/vocab/InC/1.0/ |
op_doi |
https://doi.org/10.25959/23210774.v110.25959/23210774 |
_version_ |
1768380151261822976 |