Taking the pressure out of the Archean Metamorphism: The role of CO2 in assessing metamorphic conditions of the Isua supracrustal belt, W-Greenland ...
The Eoarchean Isua Supracrustal Belt (ISB), West Greenland exposes one of the oldest rock records on Earth. Its tectonic setting is still subject of debate with interpretations ranging from plate tectonics to vertical tectonics. Information on the origin (mantle rocks vs. cumulates) and metamorphic...
Main Authors: | , , |
---|---|
Format: | Text |
Language: | English |
Published: |
Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
2022
|
Subjects: | |
Online Access: | https://dx.doi.org/10.48380/9eps-4d10 https://www.dggv.de/e-publikationen/taking-the-pressure-out-of-the-archean-metamorphism-the-role-of-co2-in-assessing-metamorphic-conditions-of-the-isua-supracrustal-belt-w-greenland |
id |
ftdatacite:10.48380/9eps-4d10 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.48380/9eps-4d10 2023-11-05T03:42:16+01:00 Taking the pressure out of the Archean Metamorphism: The role of CO2 in assessing metamorphic conditions of the Isua supracrustal belt, W-Greenland ... Müller, Thomas Sorger, Dominik Webb, Alexander 2022 https://dx.doi.org/10.48380/9eps-4d10 https://www.dggv.de/e-publikationen/taking-the-pressure-out-of-the-archean-metamorphism-the-role-of-co2-in-assessing-metamorphic-conditions-of-the-isua-supracrustal-belt-w-greenland en eng Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV) article-journal Text Abstract ScholaryArticle 2022 ftdatacite https://doi.org/10.48380/9eps-4d10 2023-10-09T11:00:49Z The Eoarchean Isua Supracrustal Belt (ISB), West Greenland exposes one of the oldest rock records on Earth. Its tectonic setting is still subject of debate with interpretations ranging from plate tectonics to vertical tectonics. Information on the origin (mantle rocks vs. cumulates) and metamorphic P-T-X evolution of ultramafic lenses exposed in the Western part of the ISB may hold the key to shed substantial light on the geodynamic evolution. While the geochemical signatures are non-conclusive in view of the origin, there is a general agreement of high to ultrahigh pressure conditions for the metamorphic overprint based on the presence of titanian clinohumite und titanian chondrodite, phases typically reported as indicative for high pressure metamorphism in ultramafics. In this contribution we present results assessing the role of CO2 using a combination of textural analysis and thermodynamic calculations. It is shown that the stability fields of the observed mineral assemblage is strongly controlled by the ... Text Greenland DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
description |
The Eoarchean Isua Supracrustal Belt (ISB), West Greenland exposes one of the oldest rock records on Earth. Its tectonic setting is still subject of debate with interpretations ranging from plate tectonics to vertical tectonics. Information on the origin (mantle rocks vs. cumulates) and metamorphic P-T-X evolution of ultramafic lenses exposed in the Western part of the ISB may hold the key to shed substantial light on the geodynamic evolution. While the geochemical signatures are non-conclusive in view of the origin, there is a general agreement of high to ultrahigh pressure conditions for the metamorphic overprint based on the presence of titanian clinohumite und titanian chondrodite, phases typically reported as indicative for high pressure metamorphism in ultramafics. In this contribution we present results assessing the role of CO2 using a combination of textural analysis and thermodynamic calculations. It is shown that the stability fields of the observed mineral assemblage is strongly controlled by the ... |
format |
Text |
author |
Müller, Thomas Sorger, Dominik Webb, Alexander |
spellingShingle |
Müller, Thomas Sorger, Dominik Webb, Alexander Taking the pressure out of the Archean Metamorphism: The role of CO2 in assessing metamorphic conditions of the Isua supracrustal belt, W-Greenland ... |
author_facet |
Müller, Thomas Sorger, Dominik Webb, Alexander |
author_sort |
Müller, Thomas |
title |
Taking the pressure out of the Archean Metamorphism: The role of CO2 in assessing metamorphic conditions of the Isua supracrustal belt, W-Greenland ... |
title_short |
Taking the pressure out of the Archean Metamorphism: The role of CO2 in assessing metamorphic conditions of the Isua supracrustal belt, W-Greenland ... |
title_full |
Taking the pressure out of the Archean Metamorphism: The role of CO2 in assessing metamorphic conditions of the Isua supracrustal belt, W-Greenland ... |
title_fullStr |
Taking the pressure out of the Archean Metamorphism: The role of CO2 in assessing metamorphic conditions of the Isua supracrustal belt, W-Greenland ... |
title_full_unstemmed |
Taking the pressure out of the Archean Metamorphism: The role of CO2 in assessing metamorphic conditions of the Isua supracrustal belt, W-Greenland ... |
title_sort |
taking the pressure out of the archean metamorphism: the role of co2 in assessing metamorphic conditions of the isua supracrustal belt, w-greenland ... |
publisher |
Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV) |
publishDate |
2022 |
url |
https://dx.doi.org/10.48380/9eps-4d10 https://www.dggv.de/e-publikationen/taking-the-pressure-out-of-the-archean-metamorphism-the-role-of-co2-in-assessing-metamorphic-conditions-of-the-isua-supracrustal-belt-w-greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_doi |
https://doi.org/10.48380/9eps-4d10 |
_version_ |
1781699263628050432 |