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Harris Greenstone Belt GIS Dataset

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Created 13/01/2025

Updated 13/01/2025

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The Harris Greenstone Domain (HGD) is a late Archean-Proterozoic arcuate tectnostratigraphic terrane in the centre of the Gawler Craton. It is bound to the south by the Yerda Shear Zone and has a lithological zone boundary to the north with the Wilgena Domain. The basement comprises Archean ultramafic-mafic extrusives (Lake Harris Komatiite), aluminous metasediments (Christie Gneiss), felsic extrusives and intrusives (Kenalla Gneiss), felsic intrusives (Glenroth Granite), and Proterozoic felsic intrusives (Hiltaba Suite Granite, St Peter Suite), felsic and mafic extrusives (Gawler Range Volcanics), and fluvial-marine sedimentary rocks (Tarcoola Formation, Pandurra Formation). The HGD is characterised by a series of sub-parallel east-northeast trending sinuous magnetic high features flanked by large ovoid to elongate magnetic highs and lows. The prominent narrow magnetic highs constitute the Archean Harris Greenstone Belt (HGB). Rock types in this poorly exposed belt include komatiite, komatiitic basalt, tholeiitic basalt, and subordinate banded iron formation, metasediments, felsic volcanics, and pyroclastics metamorphosed to amphibolite facies during the Sleafordian Orogeny at ~2440 Ma. The Lake Harris Komatiite, which represents the most eastern occurrence of komatiite in Australia, has potential for Ni-Cu-PGE sulphide and lode-Au mineralising systems. The prospective greenstone sequence is covered by thin (<50 m) Quaternary sand and Eocene fluvial channel deposits. The distribution and structure of the greenstones is based largely on interpretation of aeromagnetics, gravity, and diamond drillcore.

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Title Harris Greenstone Belt GIS Dataset
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/de643668-e48d-4bc8-a688-983e375433b7
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[133.74, -31.274], [135.368, -31.274], [135.368, -30.546], [133.74, -30.546], [133.74, -31.274]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Harris Greenstone Belt GIS Dataset". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/harris-greenstone-belt-gis-dataset

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No duplicate datasets found.