Oakden Hills. Annual reports plus final report to licence expiry/full surrender, for the period 12/12/2018 to 11/12/2022.
Published: 15 Dec 1922 Created: 12 Nov 2024 Revised: 12 Nov 2024

A small area centred ~50 km south-east of Woomera, in hilly terrain just west of Pernatty Lagoon, was taken up to cover an EM conductor identified from a recently flown SA Government SkyTEM survey, which coincides with a weak regional magnetic...

A small area centred ~50 km south-east of Woomera, in hilly terrain just west of Pernatty Lagoon, was taken up to cover an EM conductor identified from a recently flown SA Government SkyTEM survey, which coincides with a weak regional magnetic feature. These anomalies together were considered to possibly denote buried IOCG type mineralisation within the Gawler Range Volcanics, or else might arise from an occurrence of Mount Gunson style copper mineralisation within the Adelaidean cover sequence. During the first licence year, Red Metal assessed available historical exploration information and regional geophysical data. No significant prospects were identified that would warrant follow-up work. During licence Year 2, office-based only work comprised: - design of a magnetotelluric (MT) survey comprising two lines, 2000 m and 2750 m long, with 250 m station spacings for a total of 21 stations, to test the target EM anomaly. The planned MT survey was to take place early in 2020, but had to be postponed due to the travel restrictions imposed by the COVID-19 pandemic; and - commissioning an expert's review of the SkyTEM data to establish whether the identified EM anomaly is real. He concluded that it is an inversion artefact. This conclusion led Red Metal to cancel its planned MT survey. The company began seeking a JV partner to assist it to further explore the tenement. During licence Year 3, no work was done. But Red Metal sponsored part of an academic research project being conducted at the University of Tasmania, entitled "Py005: Application of Pyrite in Exploration for Sedimentary Copper and Zinc Deposits". This project aimed to discriminate between the pyrite associated with base metal deposits and otherwise barren sedimentary pyrite, using pyrite geochemistry. Pyrite samples for study were collected from drill cores, then were characterised either as sedimentary – syngenetic or hydrothermal, and were spot – analysed using a LA-ICP-MS (laser ablation inductively coupled plasma mass spectrometer) for contained trace elements. The Tapley Hill Formation shales on EL 6289 were sampled for this purpose, and 1100 analyses were performed. Results of the study, to be reported by 30/6/2021, were later to be held confidential for a further year under the proprietary use conditions of sponsorship. During licence Year 4, Red Metal reviewed all of the data for the licence area, and concluded that the potential for the tenement to host significant mineralisation is low. Consequently, it was decided to fully surrender tenure at year end expiry. The pyrite mineral geochemistry study conducted by the University of Tasmania and sponsored by Red Metal indicated that pyrite trace element chemistry, combined with lead isotope ratios, could be utilised as a vector in exploring for sedimentary Cu-Co deposits on the Stuart Shelf.

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About this record

Record No mesac29050
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Mineral Company Report - Mineral Exploration
Contributor Newexco Exploration Pty Ltd;CODES (ARC Centre of Excellence in Ore Deposits), University of Tasmania
Sponsor Red Metal Limited
Tenement EL 6289
Tenement Holder Red Metal Limited
Operator
Geological Province
Mine Name
Stratigraphy
Commodity
Notes
Notes: Includes:   - CODES (at the) University of Tasmania, July 2021. Sedimentary copper - related pyrite chemistry project. Research case studies: no. Py005 - Stuart Shelf (consultants' MSPowerpoint slide of conclusions, for sponsor Red Metal)....

Notes: Includes: - CODES (at the) University of Tasmania, July 2021. Sedimentary copper - related pyrite chemistry project. Research case studies: no. Py005 - Stuart Shelf (consultants' MSPowerpoint slide of conclusions, for sponsor Red Metal). Appx to EL 6289 fourth annual report to 11/12/2022. Geographic Locality: Oakden Hills Station;Birthday Well;Stuart Highway;2017 Geoscience Australia - DSD Minerals Group PACE Copper Olympic Domain Aerial EM (SkyTEM) Survey Doc No: Env 13228

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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/mesac29050
Citation Pienmunne, J.;Wielstra, B.;Large, R.;Mukherjee, I. 1922. Oakden Hills. Annual reports plus final report to licence expiry/full surrender, for the period 12/12/2018 to 11/12/2022. Mineral Company Report - Mineral Exploration
https://pid.sarig.sa.gov.au/document/mesac29050

Technical information

Status
Maintenance and Update Frequency
Geographic Reference GDA2020 (EPSG:7844)
Geo bounding box {"type":"Polygon","coordinates":[[[137,-32],[137.5,-32],[137.5,-31.5],[137,-31.5],[137,-32]]]}
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