PetroChron Antarctica: A Geological Database for Interdisciplinary Use
Abstract We present PetroChron Antarctica, a new relational database including petrological, geochemical and geochronological data sets along with computed rock properties from geological samples across Antarctica. The database contains whole‐rock geochemistry with major/trace element and isotope an...
Published in: | Geochemistry, Geophysics, Geosystems |
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ftdoajarticles:oai:doaj.org/article:722f701c93204fe1adb80641116b0be2 2023-12-03T10:13:49+01:00 PetroChron Antarctica: A Geological Database for Interdisciplinary Use G. Sanchez J. A. Halpin M. Gard D. Hasterok T. Stål T. Raimondo S. Peters A. Burton‐Johnson 2021-12-01T00:00:00Z https://doi.org/10.1029/2021GC010154 https://doaj.org/article/722f701c93204fe1adb80641116b0be2 EN eng Wiley https://doi.org/10.1029/2021GC010154 https://doaj.org/toc/1525-2027 1525-2027 doi:10.1029/2021GC010154 https://doaj.org/article/722f701c93204fe1adb80641116b0be2 Geochemistry, Geophysics, Geosystems, Vol 22, Iss 12, Pp n/a-n/a (2021) Antarctica geochronology geochemistry petrology relational database Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 article 2021 ftdoajarticles https://doi.org/10.1029/2021GC010154 2023-11-05T01:35:55Z Abstract We present PetroChron Antarctica, a new relational database including petrological, geochemical and geochronological data sets along with computed rock properties from geological samples across Antarctica. The database contains whole‐rock geochemistry with major/trace element and isotope analyses, geochronology from multiple isotopic systems and minerals for given samples, as well as an internally consistent rock classification based on chemical analysis and derived rock properties (i.e., chemical indices, density, p‐velocity, and heat production). A broad range of meta‐information such as geographic location, petrology, mineralogy, age statistics and significance are also included and can be used to filter and assess the quality of the data. Currently, the database contains 11,559 entries representing 10,056 unique samples with varying amounts of geochemical and geochronological data. The distribution of rock types is dominated by mafic (36%) and felsic (33%) compositions, followed by intermediate (22%) and ultramafic (9%) compositions. Maps of age distribution and isotopic composition highlight major episodes of tectonic and thermal activity that define well known crustal heterogeneities across the continent, with the oldest rocks preserved in East Antarctica and more juvenile lithosphere characterizing West Antarctica. PetroChron Antarctica allows spatial and temporal variations in geology to be explored at the continental scale and integrated with other Earth‐cryosphere‐biosphere‐ocean data sets. As such, it provides a powerful resource ready for diverse applications including plate tectonic reconstructions, geological/geophysical maps, geothermal heat flow models, lithospheric and glacial isostasy, geomorphology, ice sheet reconstructions, biodiversity evolution, and oceanography. Article in Journal/Newspaper Antarc* Antarctica East Antarctica Ice Sheet West Antarctica Directory of Open Access Journals: DOAJ Articles East Antarctica West Antarctica Geochemistry, Geophysics, Geosystems 22 12 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctica geochronology geochemistry petrology relational database Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 |
spellingShingle |
Antarctica geochronology geochemistry petrology relational database Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 G. Sanchez J. A. Halpin M. Gard D. Hasterok T. Stål T. Raimondo S. Peters A. Burton‐Johnson PetroChron Antarctica: A Geological Database for Interdisciplinary Use |
topic_facet |
Antarctica geochronology geochemistry petrology relational database Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 |
description |
Abstract We present PetroChron Antarctica, a new relational database including petrological, geochemical and geochronological data sets along with computed rock properties from geological samples across Antarctica. The database contains whole‐rock geochemistry with major/trace element and isotope analyses, geochronology from multiple isotopic systems and minerals for given samples, as well as an internally consistent rock classification based on chemical analysis and derived rock properties (i.e., chemical indices, density, p‐velocity, and heat production). A broad range of meta‐information such as geographic location, petrology, mineralogy, age statistics and significance are also included and can be used to filter and assess the quality of the data. Currently, the database contains 11,559 entries representing 10,056 unique samples with varying amounts of geochemical and geochronological data. The distribution of rock types is dominated by mafic (36%) and felsic (33%) compositions, followed by intermediate (22%) and ultramafic (9%) compositions. Maps of age distribution and isotopic composition highlight major episodes of tectonic and thermal activity that define well known crustal heterogeneities across the continent, with the oldest rocks preserved in East Antarctica and more juvenile lithosphere characterizing West Antarctica. PetroChron Antarctica allows spatial and temporal variations in geology to be explored at the continental scale and integrated with other Earth‐cryosphere‐biosphere‐ocean data sets. As such, it provides a powerful resource ready for diverse applications including plate tectonic reconstructions, geological/geophysical maps, geothermal heat flow models, lithospheric and glacial isostasy, geomorphology, ice sheet reconstructions, biodiversity evolution, and oceanography. |
format |
Article in Journal/Newspaper |
author |
G. Sanchez J. A. Halpin M. Gard D. Hasterok T. Stål T. Raimondo S. Peters A. Burton‐Johnson |
author_facet |
G. Sanchez J. A. Halpin M. Gard D. Hasterok T. Stål T. Raimondo S. Peters A. Burton‐Johnson |
author_sort |
G. Sanchez |
title |
PetroChron Antarctica: A Geological Database for Interdisciplinary Use |
title_short |
PetroChron Antarctica: A Geological Database for Interdisciplinary Use |
title_full |
PetroChron Antarctica: A Geological Database for Interdisciplinary Use |
title_fullStr |
PetroChron Antarctica: A Geological Database for Interdisciplinary Use |
title_full_unstemmed |
PetroChron Antarctica: A Geological Database for Interdisciplinary Use |
title_sort |
petrochron antarctica: a geological database for interdisciplinary use |
publisher |
Wiley |
publishDate |
2021 |
url |
https://doi.org/10.1029/2021GC010154 https://doaj.org/article/722f701c93204fe1adb80641116b0be2 |
geographic |
East Antarctica West Antarctica |
geographic_facet |
East Antarctica West Antarctica |
genre |
Antarc* Antarctica East Antarctica Ice Sheet West Antarctica |
genre_facet |
Antarc* Antarctica East Antarctica Ice Sheet West Antarctica |
op_source |
Geochemistry, Geophysics, Geosystems, Vol 22, Iss 12, Pp n/a-n/a (2021) |
op_relation |
https://doi.org/10.1029/2021GC010154 https://doaj.org/toc/1525-2027 1525-2027 doi:10.1029/2021GC010154 https://doaj.org/article/722f701c93204fe1adb80641116b0be2 |
op_doi |
https://doi.org/10.1029/2021GC010154 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
22 |
container_issue |
12 |
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1784260754740871168 |