A continent-wide detailed geological map dataset of Antarctica

A dataset to describe exposed bedrock and surficial geology of Antarctica has been constructed by the GeoMAP Action Group of the Scientific Committee on Antarctic Research (SCAR) and GNS Science. Our group captured existing geological map data into a geographic information system (GIS), refined its...

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Bibliographic Details
Published in:	Scientific data Vol. 10; no. 1; p. 250
Main Authors:	Cox, Simon C., Smith Lyttle, Belinda, Elkind, Samuel, Smith Siddoway, Christine, Morin, Paul, Capponi, Giovanni, Abu-Alam, Tamer, Ballinger, Matilda, Bamber, Lauren, Kitchener, Brett, Lelli, Luigi, Mawson, Jasmine, Millikin, Alexie, Dal Seno, Nicola, Whitburn, Louis, White, Tristan, Burton-Johnson, Alex, Crispini, Laura, Elliot, David, Elvevold, Synnøve, Goodge, John, Halpin, Jacqueline, Jacobs, Joachim, Martin, Adam P., Mikhalsky, Eugene, Morgan, Fraser, Scadden, Phil, Smellie, John, Wilson, Gary
Format:	Journal Article
Language:	English
Published:	London Nature Publishing Group UK 18-05-2023 Nature Publishing Group Springer Nature Nature Portfolio
Subjects:	704/2151/213 704/2151/215 Classification Data Descriptor Datasets Geographic information systems Geology Geomorphology Humanities and Social Sciences multidisciplinary Science Science (multidisciplinary) Spatial discrimination Antarctica
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Summary:	A dataset to describe exposed bedrock and surficial geology of Antarctica has been constructed by the GeoMAP Action Group of the Scientific Committee on Antarctic Research (SCAR) and GNS Science. Our group captured existing geological map data into a geographic information system (GIS), refined its spatial reliability, harmonised classification, and improved representation of glacial sequences and geomorphology, thereby creating a comprehensive and coherent representation of Antarctic geology. A total of 99,080 polygons were unified for depicting geology at 1:250,000 scale, but locally there are some areas with higher spatial resolution. Geological unit definition is based on a mixed chronostratigraphic- and lithostratigraphic-based classification. Description of rock and moraine polygons employs the international Geoscience Markup Language (GeoSciML) data protocols to provide attribute-rich and queryable information, including bibliographic links to 589 source maps and scientific literature. GeoMAP is the first detailed geological map dataset covering all of Antarctica. It depicts ‘known geology’ of rock exposures rather than ‘interpreted’ sub-ice features and is suitable for continent-wide perspectives and cross-discipline interrogation.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Undefined-3 Scientific Data
ISSN:	2052-4463 2052-4463
DOI:	10.1038/s41597-023-02152-9