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Commonwealth Hill, Perfection Well, Wirrida North, Nelson Bore and Ingomar (the Commonwealth Hill Joint Venture Project). Joint annual reports and final report to licences' respective expiry/renewal, for the period 6/10/1995 to 6/12/1998.
Published: 06 Jan 1999 Created: 11 Nov 2024 Revised: 11 Nov 2024
Author: Belperio, A.P.;Freeman, H.S.R.

Exploration for Challenger - type primary gold deposits that may possibly have formed within buried Archaean basement rocks in the Commonwealth Hill area, which is the purpose of one of two joint venture agreements currently in force between...

Exploration for Challenger - type primary gold deposits that may possibly have formed within buried Archaean basement rocks in the Commonwealth Hill area, which is the purpose of one of two joint venture agreements currently in force between Minotaur Gold and farminee Gawler Gold and Mineral Exploration, has consisted mostly of surface calcrete sampling and follow-up RAB/aircore and RC drilling of gold anomalies. In May 1997, the joint venture partners initially flew 12,944 line km of 100 m/200 m spaced regional aeromagnetic profiles across their contiguous exploration tenement package at Commonwealth Hill, generating structural targets which were then investigated with intensive geochemical analyses of 6569 auger-dug calcrete samples collected at prospect grid spacings ranging from 200m down to 50 m. More than 36 prospective anomalies were identified from this work, and 13 were subsequently drilled in a programme which is still continuing presently. So far, 956 RAB/aircore holes totalling 36,588 m, and 126 deeper angled RC holes totalling 14,985 m, have been completed by the joint venturers. Encouraging gold mineralisation has been encountered in both saprock and bedrock intervals in many of the drilled prospects, with the best early results being 12 m @ 1.0 g/t Au at Comet, 8 m @ 0.2 g/t Au at Neverfail, and 3 m @ 0.6 g/t Au at Birthday. The mineralisation is hosted by Archaean felsic and mafic granulites and occurs beneath a saprolite layer often up to 60 m thick. In addition to the gold grades, significantly anomalous base metals have been identified at Eaglehawk, Satellite, Neverfail, Isolation, St Andrews and Allanwater prospects, and an occurrence of high grade iron (28 m @ 53.4% Fe) was also found at St Andrews in association with gabbroic pyroxenite and microdolerite.

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About this record

Record No mesac21484
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Mineral Company Report - Mineral Exploration
Contributor World Geoscience Corp. Pty ltd
Sponsor Minotaur Gold NL
Tenement
Tenement Holder Minotaur Gold NL;Gawler Gold and Mineral Exploration NL
Operator Minotaur Gold NL
Geological Province
Mine Name Birthday prospect;Comet prospect;Eaglehawk prospect;St Andrews prospect;Sequoia South prospect;Satellite prospect;Neverfail prospect;Kimberlite prospect;Mars prospect;Isolation prospect;Allanwater prospect;St Andrews NE prospect;Acacia prospect;Perfection Well prospect;South Jacobs prospect;Cats Eye gold anomaly
Stratigraphy Mulgathing Complex
Commodity
Notes 
Notes: The subject joint venture licences' first combined annual report, for the period 6/10/1995 to 6/12/1996, is held separately in Env 8786.  See also the related ELs 1900, etc. combined partial relinquishment report held separately in Env...
Notes: The subject joint venture licences' first combined annual report, for the period 6/10/1995 to 6/12/1996, is held separately in Env 8786.  See also the related ELs 1900, etc. combined partial relinquishment report held separately in Env 9494.  The retained portion of the Commonwealth Hill joint venture tenements has since been renewed as a single licence area (EL 2595).
Geographic Locality: Commonwealth Hill Station;Bulgunnia Station;Ingomar Station;Lake Wirrida;Woomera Prohibited Area;Great Victoria Desert;1997 Commonwealth Hill Aerial Magnetic Survey;1997 Commonwealth Hill Aerial Radioactivity Survey
Doc No: Env 09291
Drillhole: (Birthday RAB) 1115-1139;(241280 - 241294);(Birthday AC) BD97001B-BD97037B;(240510 - 240546);(Birthday RC) BD037C-BD059C;(240548 - 240568);98BD1-98BD4;(339910 - 339913);(Comet AC) CM001B-CM304B;(236305 - 236608);(Comet RC) CM001C-CM030C;(236609 - 236635);98CM1-98CM8;(339902 - 339909);(Eaglehawk AC) EH001B-EH097B;(205522 - 205618);(Eaglehawk RC) 98EH1-98EH3;(175449);(205520);(205521);(Eaglehawk North RAB) EN001B-EN016B;(205619 - 205634);(Kimberlite RAB) KM001B-KM037B;(238030 - 238066);(Mars AC) MR001B-MR058B;(238067 - 238077);(339804 - 339848);(Mars RC) 98MR1-98MR14;(339888 - 339901);(Neverfail RAB) NF001B-NF084B;(238078 - 238161);(Satellite RAB) SAT001B-SAT044B;(238163 - 238206);(Sequoia South RAB) SS001B-SS032B;(238207 - 238238);SS10-1;(339879);(St Andrews AC) SA001B-SA123B;(238247 - 238369);(St Andrews RC) SA001C-SA008C;(238370 - 238373);(339914);(St Andrews North-East AC) SANE01B-SANE30B;(339849 - 339878);(Isolation AC) I01B-I30B;(Allanwater AC) AW01B-AW08B;(339880 - 339887)
Drillhole Unit No: 5738 01044;THROUGH;5738 01374

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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/mesac21484
Citation Belperio, A.P.;Freeman, H.S.R. 1999. Commonwealth Hill, Perfection Well, Wirrida North, Nelson Bore and Ingomar (the Commonwealth Hill Joint Venture Project). Joint annual reports and final report to licences' respective expiry/renewal, for the period 6/10/1995 to 6/12/1998. Mineral Company Report - Mineral Exploration
https://pid.sarig.sa.gov.au/document/mesac21484

Technical information

Status
Maintenance and Update Frequency
Geographic Reference GDA2020 (EPSG:7844)
Geo bounding box {"type":"Polygon","coordinates":[[[133.5,-30.5],[135,-30.5],[135,-29],[133.5,-29],[133.5,-30.5]]]}
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