RB 87/00109 Geological investigations and exploration activities, 1982 to 1986, at Mount Grainger gold mine, Hundred Coglin, County Herbert. Volume 1 (of 2).
Published: 01 Sep 1987 Created: 07 Nov 2024 Revised: 07 Nov 2024

Investigations consisted of: 1) economic appraisal, mapping and sampling of mineralised structures within mineral leases; 2) regional investigation to east of Mount Grainger mine (report in RB 84/31) - includes details of exploration by Abignano...

Investigations consisted of: 1) economic appraisal, mapping and sampling of mineralised structures within mineral leases; 2) regional investigation to east of Mount Grainger mine (report in RB 84/31) - includes details of exploration by Abignano Ltd. Stratabound (Telfer type) gold mineralization is confined to quartz-vein sets and stockworks in joints and fractures within a basal arkose / sandstone of the Appila Tillite. Channel sampling failed to establish any mineable ore reserves, but has confirmed that anomalous gold values occur at the base of and within the Appila Tillite. Bulk samples indicate that a recovery of 1.0 to 2.0 g/t. gold bullion from the base of the Appila Tillite is possible. Sub-economic mineralization has been demonstrated over a strike length of 700 metres, down dip for 66 metres, and over a width of 10 metres. Attendant drill hole and open cut spacing eliminates the possibility of finding a sizeable ore deposit amenable to open pit mining. Small, discrete alteration zones and ore shoots containing accessible moderate to low grade ore could be delineated, but would require further exploration.

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About this record

Record No rb8700109
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Departmental Publication - Geological Survey Geoscience Publication
Contributor
Sponsor
Tenement
Tenement Holder
Operator
Geological Province Adelaide Geosyncline
Mine Name Mount Grainger Gold Field;Mount Grainger Gold Mine;North Medora Mine;South Medora Mine;Dustholes Mine;Aureous Mine;Medina Mine
Stratigraphy
Commodity
Notes
Geographic Locality: Mount Grainger Anticline;Mount Grainger;Hd Coglin;Peterborough State Battery
Doc No: RB 87/00109

Geographic Locality: Mount Grainger Anticline;Mount Grainger;Hd Coglin;Peterborough State Battery Doc No: RB 87/00109

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/rb8700109
Citation Horn, C.M. 1987. RB 87/00109 Geological investigations and exploration activities, 1982 to 1986, at Mount Grainger gold mine, Hundred Coglin, County Herbert. Volume 1 (of 2). Departmental Publication - Geological Survey Geoscience Publication. Government of South Australia.
https://pid.sarig.sa.gov.au/document/rb8700109

Technical information

Status
Maintenance and Update Frequency
Geographic Reference GDA2020 (EPSG:7844)
Geo bounding box {"type":"Polygon","coordinates":[[[139,-33],[139.5,-33],[139.5,-32.5],[139,-32.5],[139,-33]]]}
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Lineage