Waddikee Rocks and Corrobinnie (part of the Eyre Peninsula Project). Joint second and sixth respectively partial surrenders report, for the overall period 17/10/1996 to 11/7/2016.
Created: 12 Nov 2024 Revised: 12 Nov 2024

The stated exploration strategy for the Joint Venture's Eyre Peninsula Project tenements (that are still extant) is to explore predominantly for gold and copper, with uranium as a secondary focus. Regional programmes of calcrete geochemical...

The stated exploration strategy for the Joint Venture's Eyre Peninsula Project tenements (that are still extant) is to explore predominantly for gold and copper, with uranium as a secondary focus. Regional programmes of calcrete geochemical sampling, with samples initially taken at 1.6 km centres, are being used to identify anomalies that can then be followed up with RAB drilling. Further RC and diamond drilling may take place where RAB drilling results prove positive. 55 calcrete samples were collected on the now relinquished portion of EL 4968. No samples were found to be anomalous in gold i.e. having >2.5 ppb Au. The highest gold assay value returned was 1.65 ppb Au in the extreme south-west of the area. No samples returned copper values greater than 18 ppm Cu. The highest recorded assay value was 16 ppm Cu, also from the south-west of the relinquished area. 885 calcrete samples were collected on the two now relinquished portions of EL 5120. In the south-western portion, only one sample of the 143 taken was found to be anomalous in gold, with 3.35 ppb Au. Subsequent infill sampling did not yield another anomalous sample. Only two samples were found to be anomalous in copper (>18 ppm Cu), returning 20 and & 23ppm respectively. Subsequent infill sampling did not yield more anomalous samples. In the north-eastern portion, 328 samples of the 742 taken were found to be anomalous, defining a north-west trending dumbbell-shaped zone (PA1) with peaks at each end, one of 11 ppb Au and the other 16 ppb Au. 27 samples returned copper values greater than background, however, only one cluster of 7 adjacent samples was noted with merely up to 20 ppm Cu. A program of regolith mapping was undertaken in 1999 over the PA1 gold anomaly on EL 5120, which described predominantly thinly developed transported primary and secondary aeolian sedimentary facies overlying weathered and indurated bedrock. During March 1999 and then in August 2003, vertical aircore drilling of 3 holes initially plus 27 holes as follow-up, for a total penetration of 1533.5 m, was undertaken to test the PA1 gold-in-calcrete anomaly. A cover sequence of silcretised and unconsolidated sand and clay up to 12 m thick was found to overlie a normal lateritic sequence comprising a pallid zone (up to 24 m thick), upper saprolite and lower saprolite. The highest gold assay value returned was 0.2 g/t Au and for copper it was 600 ppm Cu, both from around 35-40 m depth in weakly quartz-veined saprolite after gneiss. The drilling was interpreted to have intersected a supergene geochemical halo sourced by gold and copper-bearing mineralisation. The presence of silica and pyrite veining, although only weakly developed, was thought to indicate former hydrothermal activity in the area. However, it was interpreted from studying the regolith stratigraphy in the anomaly area that the majority of its 2.8 square km extent is the result of prolonged lateral transport of the dispersing gold during development of a thicker than normal cover sequence. A lack of significant surface or shallow subsurface gold and copper anomalism, and no past survey geophysical anomalies of interest, influenced the selection of the licence portions which have now been relinquished.

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About this record

Record No mesac26878
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Mineral Company Report - Mineral Exploration
Contributor
Sponsor
Tenement
Tenement Holder Peninsula Resources Ltd;Adelaide Exploration Ltd;Newmont Gold Exploration Pty Ltd;Eyre Energy Ltd;Quasar Resources Pty Ltd
Operator Adelaide Resources Limited
Geological Province
Mine Name
Stratigraphy
Commodity
Notes
Geographic Locality: West-central Eyre Peninsula;Waddikee Rocks;Corrobinnie Hill;Pinkawillinie Conservation Park
Doc No: Env 12897
Drillhole: PA1-0241;PA1-0242;PA1-0243;PA1-0472 - PA10498

Geographic Locality: West-central Eyre Peninsula;Waddikee Rocks;Corrobinnie Hill;Pinkawillinie Conservation Park Doc No: Env 12897 Drillhole: PA1-0241;PA1-0242;PA1-0243;PA1-0472 - PA10498

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/mesac26878
Citation Manly, M. Waddikee Rocks and Corrobinnie (part of the Eyre Peninsula Project). Joint second and sixth respectively partial surrenders report, for the overall period 17/10/1996 to 11/7/2016. Mineral Company Report - Mineral Exploration
https://pid.sarig.sa.gov.au/document/mesac26878

Technical information

Status
Maintenance and Update Frequency
Geographic Reference GDA2020 (EPSG:7844)
Geo bounding box {"type":"Polygon","coordinates":[[[135.5,-33.5],[136.5,-33.5],[136.5,-32.5],[135.5,-32.5],[135.5,-33.5]]]}
Purpose

                    
                    

                    
                  
Lineage