Anabama. Annual reports to licence expiry/full surrender, for the period 14/8/2015 to 13/8/2019.
Published: 11 Oct 1919 Created: 12 Nov 2024 Revised: 12 Nov 2024

A small area covering the eastern end of the historic Anabama copper prospect in the Benda Range south of Manna Hill has been explored for possible buried economic, epithermal/hydrothermal structurally controlled copper-gold mineralisation that...

A small area covering the eastern end of the historic Anabama copper prospect in the Benda Range south of Manna Hill has been explored for possible buried economic, epithermal/hydrothermal structurally controlled copper-gold mineralisation that may have formed in Adelaidean metasediments and volcanic rocks. Licensee Malaco Leichhardt Pty Ltd currently owns and operates the Mount Watson copper mine and the Mount Cuthbert solvent extraction - electrowinning ore processing plant in the Cloncurry region of north-western Queensland. During the initial licence year, work consisted of reviewing past exploration records, performing legacy data validation checks including undertaking data source location spatial coordinate transformations (with some in-field checking of past drill collar locations), and then doing 3D computer modelling of the Anabama prospect, which resulted in the conceptual definition of an exploration target of 7-8 Mt @ 0.5-0.7% Cu oxide, plus 14-18 Mt @ 0.5-1.0% Cu sulphide. The modelling showed a steeply north-west dipping mineralised lens with a strike length of 900 m. Less detailed investigations were also made of existing data for the nearby White Rock prospect, which at this stage needed more study to determine the level of prospectivity there. During licence Year 2, further compilation and re-interpretation of previous drilling data was done, and an orientation soil geochemical survey was conducted during July 2017 along a single 1500 m traverse across the Anabama prospect, with 24 samples collected for laboratory analysis at 70 m intervals to see if the results replicated the Cu and Zn anomalism reported from historic RAB bedrock drilling, and to determine the best sampling size fraction for future use. Cu displayed the most anomalism across all three size fractions tested, with high variability in the coarse, plus 2 mm fraction. The mineralised trend was reflected by assay values of up to 160 ppm Cu, with background levels being around 30 ppm Cu. Zinc gave a more subdued but consistently anomalous response, discernable mainly in the fine, minus 60 mesh fraction. Lead values were very low throughout (<19 ppm Pb). Photographs were taken of several abandoned copper workings during their surface inspection, and 4 grab rock chip samples of mineralised material in the vicinity were collected and analysed on site using PXRF spectrometric equipment. Numerous photographs were taken of exposed drill collars and their immediate surrounds when such were able to be found, to use to authenticate the GPS site coordinate transformative measurements that were made at the same time. No further work was done during licence Years 3 and 4. When the time came to submit a renewal application for a fifth year, it was decided that EL 5674 did not rank highly enough against Malaco’s other properties to warrant its continued exploration, and therefore tenure was allowed to lapse.

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About this record

Record No mesac28885
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Mineral Company Report - Mineral Exploration
Contributor
Sponsor
Tenement EL 5674
Tenement Holder Malaco Leichhardt Pty Ltd
Operator
Geological Province
Mine Name Anabama copper prospect
Stratigraphy
Commodity
    Notes
    Geographic Locality: Anabama East
    Doc No: Env 12944

    Geographic Locality: Anabama East Doc No: Env 12944

    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/mesac28885
    Citation Graetz, N.;Godsmark, B.;Cole, L. 1919. Anabama. Annual reports to licence expiry/full surrender, for the period 14/8/2015 to 13/8/2019. Mineral Company Report - Mineral Exploration
    https://pid.sarig.sa.gov.au/document/mesac28885

    Technical information

    Status
    Maintenance and Update Frequency
    Geographic Reference GDA2020 (EPSG:7844)
    Geo bounding box {"type":"Polygon","coordinates":[[[140,-33],[140.5,-33],[140.5,-32.5],[140,-32.5],[140,-33]]]}
    Purpose
    
                        
                        
    
                        
                      
    Lineage