This collection of datasets comprises geological information for Antarctica. Data have been compiled by the GeoMAP team led by GNS Science. Version 2022-08 updates an early beta version (v.2019-07) in response to informal feedback and peer review, and/or the need for local improvements. GeoMAP has utilsed co-funding from GNS Science's Nationally Significant Databases and Collections Programme (NSDC) and international collaboration through the SCAR GeoMAP project(2015-2020). It represents a synthesis of existing published and unpublished mapping of the continent's geologyin a single geodatabase at a regional scale. The data comprises geological unit polygon geometry and attribute fields describing the unit type, name, age, lithology, stratigraphy, and supporting background information, where this is known and geological fault polyline geometry and attribute fields describing locational accuracy, exposure, fault type, and supporting background information, where this is known. Data are linked to the source polygon geometry which provides a spatial bibliography of key datasets and maps used in their compilation. The data structures within this geodatabase comply with the GeoSciML 4.1 standard where relevant and uses the relevant CGI Controlled Vocabularies.The GeoMAP dataset was produced as part of the Regional Geological Map Archive and Datafile, one of the Nationally Significant Collections and Databases supported by the New Zealand Government’s Strategic Science Investment Fund (contract C05X1701).DOI https://doi.org/10.21420/7SH7-6K05

This vector data layer spatially represents a geological legend depicting the exposed rock outcrop and covering sediments on Antarctica. It illustrates the representative age and type of rock in the approximate location that the exposure occurs. This geological data was constructed using EPSG:4978 (WGS 84). It is also suitable for projection in EPSG:3031 (WGS 84/Antarctic Polar Stereographic). DOI https://doi.org/10.21420/7SH7-6K05

This layer comprises geological unit data for Antarctica. It represents a synthesis of existing published and unpublished mapping of the geology of this area in a single dataset at a regional scale. These data comprise polygon geometry with each polygon having attributes describing the unit type, name, age, lithology, stratigraphy, and supporting background information, where this is known. This layer complies with the GeoSciML Lite (version 4.1) standard for GeologicalUnitView and fields required by that standard were populated using the CGI Controlled Vocabulary (version 2016.01).The GeoMAP dataset was produced as part of the Regional Geological Map Archive and Datafile, one of the Nationally Significant Collections and Databases supported by the New Zealand Government’s Strategic Science Investment Fund (contract C05X1701).DOI https://doi.org/10.21420/7SH7-6K05

This layer comprises geological unit data for Antarctica. It represents a synthesis of existing published and unpublished mapping of the geology of this area in a single dataset at a regional scale. These data comprise polygon geometry with each polygon having attributes describing the unit type, name, age, lithology, stratigraphy, and supporting background information, where this is known. This layer complies with the GeoSciML Lite standard for GeologicalUnitView and fields required by that standard were populated using the CGI Controlled Vocabulary (v2016.01). DOI: https://doi.org/10.21420/G6PG-J931 Cite dataset collection as: Cox, S. C., Smith Lyttle, B., & SCAR GeoMAP Action Group. (2019). ATA SCAR GeoMAP geology (v.2019-07). GNS Science. https://doi.org/10.21420/G6PG-J931

This report and associated data presents a new and provisional estimate of the maximum depth of rupture on New Zealand’s active faults (“New Zealand Fault-Rupture Depth Model v1.0”) based on a combination of two independent models. The first model uses regional seismicity distribution from a relocated earthquake catalogue to calculate the 90% seismicity cut-off depth (D90) representing the seismogenic depth limit H. This is multiplied by an overshoot factor representing dynamic propagation of rupture into the conditional stability zone and accounting for the difference between regional seismicity depths and frictional properties of a mature fault zone, to arrive at rupture depth Df. The second model uses surface heat-flow and rock type to compute thermal stability limits for seismogenic faults. These limits are also multiplied by an overshoot factor to arrive at a thermally-based maximum rupture depth Df. Both models have depth cut-offs at the Moho and/or subducting slabs. Results indicate maximum rupture depths between 8 km (Taupō Volcanic Zone) to > 30 km (e.g. southwest North Island), strongly correlated with regional thermal gradients. Preliminary estimates of uncertainties for each model are also discussed. Depths from the two models show broad agreement for most of the North Island and some differences in the South Island. A combined model using weighting based on relative uncertainties is derived and validated using constraints from hypocentre and slip model depths from recent well-instrumented earthquakes. (auth) DOI: https://doi.org/10.21420/0BBW-V059 Cite data as: Ellis SM, Bannister S, Van Dissen RJ, Eberhart-Phillips D, Holden C, Boulton C, Reyners ME, Funnell RH, Mortimer N, Upton P. 2021. New Zealand Fault Rupture Depth Model v1.0: a provisional estimate of the maximum depth of seismic rupture on New Zealand’s active faults. Lower Hutt (NZ): GNS Science. 47 p. (GNS Science report; 2021/08). doi:10.21420/4Q75-HZ73. (with data set available at DOI: https://doi.org/10.21420/0BBW-V059)