Erudina. Progress and final reports to licence surrender for the period 5/8/91 to March 1992.
Created: 13 Nov 2024 Revised: 13 Nov 2024

TARGET: Microscopically fine-grained, Carlin - type gold within Early Cambrian carbonate rocks in the Reaphook Hill area, which could be mined by open pit methods. EXPLORATION: Geological reconnaissance, a review of previous drilling, stream...

TARGET: Microscopically fine-grained, Carlin - type gold within Early Cambrian carbonate rocks in the Reaphook Hill area, which could be mined by open pit methods. EXPLORATION: Geological reconnaissance, a review of previous drilling, stream sediment BLEG geochemistry, RAB / aircore drilling (22 holes totalling 1492 m), and interpretation of reprocessed 1966 BMR aeromagnetic data. RESULTS: No significant gold values were recorded in surface sampling, and all of the new drillholes, that were targeting possible gold geochemical haloes adjacent to interpreted fault lineaments, failed to reach the pre-Mesozoic basement in what proved to be deeply alluvium-covered areas. A separate re-appraisal of the known Reaphook Hill Cambrian limestone-hosted zinc occurrence identified a substantial extent of low grade secondary ore, associated with manganese oxides and predominantly concentrated in the Cambrian Parachilna Formation just above the Precambrian-Cambrian boundary, but the inferred general tenor of mineralisation in the orebody did not justify undertaking any further work there.

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About this record

Record No mesac32779
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Mineral Company Report - Mineral Exploration
Contributor
Sponsor
Tenement EL 1738
Tenement Holder BHP Minerals Ltd
Operator
Geological Province
Mine Name Reaphook Hill zinc prospect
Stratigraphy
Commodity zinc
Notes
Geographic Locality: Eastern Flinders Ranges;Reaphook Hill;Freshwater Gap;South-western Lake Frome Plains;Erudina Homestead;Pasmore River
Doc No: Env 08501
Drillhole: Kennecott DH3-DH6;EDP92-1 - EDP92-22
Drillhole Unit No: 6834 00428;6834...

Geographic Locality: Eastern Flinders Ranges;Reaphook Hill;Freshwater Gap;South-western Lake Frome Plains;Erudina Homestead;Pasmore River Doc No: Env 08501 Drillhole: Kennecott DH3-DH6;EDP92-1 - EDP92-22 Drillhole Unit No: 6834 00428;6834 00168;6734 00134;THROUGH;6734 00143;6735 00087;6735 00095;6835 00070

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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/mesac32779
Citation Wilde, A.R. Erudina. Progress and final reports to licence surrender for the period 5/8/91 to March 1992. Mineral Company Report - Mineral Exploration
https://pid.sarig.sa.gov.au/document/mesac32779

Technical information

Status
Maintenance and Update Frequency
Geographic Reference GDA2020 (EPSG:7844)
Geo bounding box {"type":"Polygon","coordinates":[[[139,-32],[140,-32],[140,-31],[139,-31],[139,-32]]]}
Purpose

                    
                    

                    
                  
Lineage