Sundown [Outstation]. Annual and final reports to licence expiry/full surrender for the period 25/6/2002 to 24/6/2006.
Created: 29 Oct 2024 Revised: 07 Dec 2024

An area located approximately 100 km north-west of Marla was targeted for possible Ni/Cu/PGE magmatic massive sulphide mineralisation contained within buried outliers of the Giles Complex mafic intrusive complex, perhaps present in a setting...

An area located approximately 100 km north-west of Marla was targeted for possible Ni/Cu/PGE magmatic massive sulphide mineralisation contained within buried outliers of the Giles Complex mafic intrusive complex, perhaps present in a setting similar to that of the Babel and Nemo nickel occurrences previously found by Western Mining Corp. in Western Australia. After conducting a literature review and interpretation of available geophysical data, soil sampling was tried over selected bedrock geophysical anomalies, but this method failed to yield satisfactory results. Bulk sampling followed by separation and analysis of the magnetic fraction of the soils did indicate that pathfinder metal concentrations were present at levels below threshold, so it was decided to perform magnetic lag sampling to optimise their recovery in the field. A regional lag sampling programme across the licence area (274 samples taken on 1 km x 1 km centres) proved more satisfactory, returning some nickel values > 100 ppm, but no coincident copper. Follow-up infill lag sampling across priority geophysical anomalies (552 samples on 500 m x 200 m centres) gave better results, yielding coherent Cu anomalism with lesser Ni highs along an E-W trending, probable mafic dyke structure in the south of the licence. Field checking and rock chip sampling of this feature returned up to 1255 ppm Cu. During 2005 ground EM surveys (13 N-S lines of moving loop coverage) were carried out over the dyke target in an attempt to directly detect any massive sulphide mineralisation. Although the ground conditions were practically perfect for using this technique, no late time EM responses were detected, so it was concluded that no significant metallic mineralisation is present. Due to the perceived reduced prospectivity of this area, it was then decided to surrender the licence.

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About this record

Record No mesac21124
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Mineral Company Report - Mineral Exploration
Contributor
Sponsor
Tenement EL 2973
Tenement Holder Minex (Australia) Pty Ltd
Operator Mithril Resources Ltd
Geological Province Musgrave Province
Mine Name Cavanagh magnetic anomaly
Stratigraphy
Commodity
Notes
Geographic Locality: Everard Range;De Rose Hill Station;Sundown Outstation;Stuart Highway
Doc No: Env 09977

Geographic Locality: Everard Range;De Rose Hill Station;Sundown Outstation;Stuart Highway Doc No: Env 09977

Language English
Metadata Standard ISO 19115-3

Citations

Use constraints License
License Creative Commons Attribution 4.0
Persistent identifier https://pid.sarig.sa.gov.au/document/mesac21124
Citation McKinnon-Matthews, W.J. Sundown [Outstation]. Annual and final reports to licence expiry/full surrender for the period 25/6/2002 to 24/6/2006. Mineral Company Report - Mineral Exploration
https://pid.sarig.sa.gov.au/document/mesac21124

Technical information

Status
Maintenance and Update Frequency
Geographic Reference GDA2020 (EPSG:7844)
Geo bounding box {"type":"Polygon","coordinates":[[[133.084651,-26.498542],[133.417981,-26.498542],[133.417981,-26.081872],[133.084651,-26.081872],[133.084651,-26.498542]]]}
Purpose

                    
                    

                    
                  
Lineage