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Geology of the Stillwell Hills GIS dataset

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Created 13/01/2025

Updated 13/01/2025

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The Stillwell Hills region comprises granulite-facies gneisses which record evidence for multiple episodes of deformation and metamorphism spanning more than 2500 million years. The predominant orthogneiss package (Stillwell Orthogneiss) is thought to represent the margin of an Archaean craton exposed in Enderby Land, some 150 km to the west that was reworked during the late Proterozoic. Younger additions to the crust include Palaeoproterozoic charnockitic gneiss (Scoresby Charnockite) and Meso-Neoproterozoic mafic sills and dykes (Point Noble Gneiss, Kemp Dykes) and felsic pegmatites (Cosgrove Pegmatites). Subordinate supracrustal rocks, including metaquartzite, metapelitic, metapsammitic and calc-silicate gneiss (Dovers Paragneiss, Sperring Paragneiss, Stefansson Paragneiss, Keel Paragneiss, Ives Paragneiss) are intercalated and infolded with the Archaean-Palaeoproterozoic orthogneisses. This Dataset is derived from the map product 'The Geology of the Stillwell Hills, Antarctica' (GEOCAT 72717). This dataset is published with the permission of the CEO, Geoscience Australia

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Title Geology of the Stillwell Hills GIS dataset
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/4e8398b6-0fd2-47c9-af3e-d43b7b3839ca
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[59.3, -67.5], [59.6, -67.5], [59.6, -67.25], [59.3, -67.25], [59.3, -67.5]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Geology of the Stillwell Hills GIS dataset". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/geology-of-the-stillwell-hills-gis-dataset

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