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New central Gawler gold HyLogger results - Preliminary results from the Tunkillia region, Central Gawler Gold Prospect, South Australia

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Created 13/01/2025

Updated 13/01/2025

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The HyLogger hyperspectral core-mapping instrument, developed by CSIRO's Mineral Mapping Technologies Group (MMTG), can log up to 1000 m of core per day (more for chips) and has automated core tray handling, digital imaging and spectral scanning and specialised mineral identification software for rapid logging capability. The Central Gawler Gold Province HyLogger project is a collaborative undertaking between the collaborators/developers: CSIRO MMTG, Primary Industries and Resources South Australia (PIRSA) / Cooperative Research Centre for Landscape Environments and Mineral Exploration (CRC LEME) and Geoscience Australia. The Tunkillia prospect, part of the Central Gawler Gold Province, is located some 250 km South of Coober Pedy, and is a regolith-dominated landscape with up to 300m of cover. The area delineated as a de-magnetised zone by earlier studies, was extensively drilled with Diamond and RC drilling. Selected diamond holes from Tunkillia were selected for this HyLogger investigation. At Tunkillia, high gold shows some correlation with white mica composition (phengite-muscovite), as well as mica crystallinity and spectral absorption feature wavelength shifts, possibly representing an increasing in acidity due to mixing of metamorphic muscovite and hydrothermal fluid in the altered granitic host rocks. Alteration occurring in mafic dykes, are well delineated by chlorite-carbonate minerals which can be easily mapped. Gold is predominantly confined to a granitic host, high gold in mafic rocks appears to occur in nearly all cases on margins / fracture zones between the dyke and the host rock. This talk was presented at the Workshop on iron oxide copper-gold systems of the Gawler Craton, held at the AMF Centre, Adelaide on 24 February, 2006.

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Title New central Gawler gold HyLogger results - Preliminary results from the Tunkillia region, Central Gawler Gold Prospect, South Australia
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/d3c22666-d2a2-4e54-98f0-08be3eb1c8bb
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[133.0, -34.0], [138.0, -34.0], [138.0, -29.0], [133.0, -29.0], [133.0, -34.0]]]}
Data Portal data.gov.au

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This dataset was originally found on data.gov.au "New central Gawler gold HyLogger results - Preliminary results from the Tunkillia region, Central Gawler Gold Prospect, South Australia". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/new-central-gawler-gold-hylogger-results-preliminary-results-from-the-tunkillia-region-central-