Data repository for: Evolution of brittle structures in plagioclase-rich rocks at high-grade metamorphic conditions – Linking laboratory results to field observations
Pseudotachylytes as well as ductile shear zones can be found in high-grade metamorphic rocks in the Lofoten archipelago, N Norway, both reflecting the localization of strain. Compared to the pseudotachylyte mineral assemblage, ductile shear zones show a much larger extent of hydration, expressed by...
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ftdatacite:10.17632/st6m4ccz4m 2023-05-15T17:08:15+02:00 Data repository for: Evolution of brittle structures in plagioclase-rich rocks at high-grade metamorphic conditions – Linking laboratory results to field observations Incel, Sarah 2020 https://dx.doi.org/10.17632/st6m4ccz4m https://data.mendeley.com/datasets/st6m4ccz4m unknown Mendeley https://dx.doi.org/10.17632/st6m4ccz4m.1 Creative Commons Attribution 4.0 International info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Metamorphic Petrology Experimental Rock Deformation dataset Dataset 2020 ftdatacite https://doi.org/10.17632/st6m4ccz4m https://doi.org/10.17632/st6m4ccz4m.1 2021-11-05T12:55:41Z Pseudotachylytes as well as ductile shear zones can be found in high-grade metamorphic rocks in the Lofoten archipelago, N Norway, both reflecting the localization of strain. Compared to the pseudotachylyte mineral assemblage, ductile shear zones show a much larger extent of hydration, expressed by the formation of hydrous minerals. We combined experimental results and field observations to investigate the evolution of brittle structures in plagioclase-rich rocks at eclogite-facies conditions. We conducted deformation experiments on intact granulite samples and compared our laboratory results to natural microstructures of the Lofoten samples. To investigate the microstructural evolution of the experimental samples, we terminated the tests at ~7-8 % and 33-36 % axial shortening. We studied the importance of water for the microstructural evolution of the samples by either deforming natural samples ‘as-is’ or by adding approx. 1 wt.% H2O. In addition, we tested the influence of temperature by performing the experiments at 700 °C and 900 °C. All tests were conducted at a confining pressure of 2.5 GPa and a strain rate of 5×10^-5 s^-1. Similarities between the experimental and natural microstructures suggest that the transformation of brittle structures to ductile shear zones is most effective in samples deformed with added water. Dataset Lofoten DataCite Metadata Store (German National Library of Science and Technology) Lofoten Norway |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Metamorphic Petrology Experimental Rock Deformation |
spellingShingle |
Metamorphic Petrology Experimental Rock Deformation Incel, Sarah Data repository for: Evolution of brittle structures in plagioclase-rich rocks at high-grade metamorphic conditions – Linking laboratory results to field observations |
topic_facet |
Metamorphic Petrology Experimental Rock Deformation |
description |
Pseudotachylytes as well as ductile shear zones can be found in high-grade metamorphic rocks in the Lofoten archipelago, N Norway, both reflecting the localization of strain. Compared to the pseudotachylyte mineral assemblage, ductile shear zones show a much larger extent of hydration, expressed by the formation of hydrous minerals. We combined experimental results and field observations to investigate the evolution of brittle structures in plagioclase-rich rocks at eclogite-facies conditions. We conducted deformation experiments on intact granulite samples and compared our laboratory results to natural microstructures of the Lofoten samples. To investigate the microstructural evolution of the experimental samples, we terminated the tests at ~7-8 % and 33-36 % axial shortening. We studied the importance of water for the microstructural evolution of the samples by either deforming natural samples ‘as-is’ or by adding approx. 1 wt.% H2O. In addition, we tested the influence of temperature by performing the experiments at 700 °C and 900 °C. All tests were conducted at a confining pressure of 2.5 GPa and a strain rate of 5×10^-5 s^-1. Similarities between the experimental and natural microstructures suggest that the transformation of brittle structures to ductile shear zones is most effective in samples deformed with added water. |
format |
Dataset |
author |
Incel, Sarah |
author_facet |
Incel, Sarah |
author_sort |
Incel, Sarah |
title |
Data repository for: Evolution of brittle structures in plagioclase-rich rocks at high-grade metamorphic conditions – Linking laboratory results to field observations |
title_short |
Data repository for: Evolution of brittle structures in plagioclase-rich rocks at high-grade metamorphic conditions – Linking laboratory results to field observations |
title_full |
Data repository for: Evolution of brittle structures in plagioclase-rich rocks at high-grade metamorphic conditions – Linking laboratory results to field observations |
title_fullStr |
Data repository for: Evolution of brittle structures in plagioclase-rich rocks at high-grade metamorphic conditions – Linking laboratory results to field observations |
title_full_unstemmed |
Data repository for: Evolution of brittle structures in plagioclase-rich rocks at high-grade metamorphic conditions – Linking laboratory results to field observations |
title_sort |
data repository for: evolution of brittle structures in plagioclase-rich rocks at high-grade metamorphic conditions – linking laboratory results to field observations |
publisher |
Mendeley |
publishDate |
2020 |
url |
https://dx.doi.org/10.17632/st6m4ccz4m https://data.mendeley.com/datasets/st6m4ccz4m |
geographic |
Lofoten Norway |
geographic_facet |
Lofoten Norway |
genre |
Lofoten |
genre_facet |
Lofoten |
op_relation |
https://dx.doi.org/10.17632/st6m4ccz4m.1 |
op_rights |
Creative Commons Attribution 4.0 International info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.17632/st6m4ccz4m https://doi.org/10.17632/st6m4ccz4m.1 |
_version_ |
1766063973518540800 |