Glenorchy. Progress, annual and final reports to licence surrender for the period 11/8/1977 to 10/6/1979.
Published: 07 May 1979 Created: 13 Nov 2024 Revised: 13 Nov 2024

Work included 1:83,000 scale regional photogeological mapping, detailed 1:2000 scale geological mapping of the Jagged Rocks davidite prospect, known to contain up to 0.5% U3O8, plus the acquisition and interpretation of a 193 line km, 150 m...

Work included 1:83,000 scale regional photogeological mapping, detailed 1:2000 scale geological mapping of the Jagged Rocks davidite prospect, known to contain up to 0.5% U3O8, plus the acquisition and interpretation of a 193 line km, 150 m line-spaced helicopter-borne spectrometric survey, and ground-based checking of three selected radiometric anomalies. No visible mineralisation was found at the anomaly locations, but geochemically anomalous rock samples were obtained, although these were deemed of insufficient quality to warrant follow-up (maxima 200 ppm U3O8 and 23 ppm ThO2). The airborne survey failed to detect the two known davidite occurrences at Jagged Rocks, but the licensee from its ground investigations is confident that there are no outcropping extensions to this mineralisation, on either the eastern or western sides. An unreported re-assessment made by Esso of previous SADM and Electrolytic Zinc Corp. data on the grade and extent of the Jagged Rocks mineralisation concluded that treated alone it would not be worth mining.

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About this record

Record No mesac6515
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Mineral Company Report - Mineral Exploration
Contributor Pontifex and Associates Pty Ltd;R.F. Loxton, Hunting and Associates Pty Ltd
Sponsor Esso Australia Ltd
Tenement EL 343
Tenement Holder Esso Australia Ltd
Operator Esso Australia Ltd. Coal and Minerals Department
Geological Province Curnamona Province
Mine Name Jagged Rocks prospect
Stratigraphy Willyama Supergroup
Commodity
Notes
Geographic Locality: Glenorchy Station;1978 Glenorchy Helicopter-borne Radioactivity Survey
Doc No: Env 03085

Geographic Locality: Glenorchy Station;1978 Glenorchy Helicopter-borne Radioactivity Survey Doc No: Env 03085

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/mesac6515
Citation Cotton, B.J.;Fraser, N.;Pontifex, I.R. 1979. Glenorchy. Progress, annual and final reports to licence surrender for the period 11/8/1977 to 10/6/1979. Mineral Company Report - Mineral Exploration
https://pid.sarig.sa.gov.au/document/mesac6515

Technical information

Status
Maintenance and Update Frequency
Geographic Reference GDA2020 (EPSG:7844)
Geo bounding box {"type":"Polygon","coordinates":[[[139.5,-32],[140,-32],[140,-31.5],[139.5,-31.5],[139.5,-32]]]}
Purpose

                    
                    

                    
                  
Lineage