RB 98/00022 Review of open file company exploration data from the early 1980s to mid-1997, over the Yunta, Winnininnie, Anabama and Oakvale 1:100 000 map sheets, OLARY 1:250 000 map sheet, South Australia.
Published: 01 Jul 1997 Created: 07 Nov 2024 Revised: 07 Nov 2024

Significant exploration focussed on: 路 stratabound 'Telfer-style' gold in Adelaidean metasediments in the Nackara Arc, using stratiform or stratabound structurally-controlled genetic models; and structurally controlled gold and base metal...

Significant exploration focussed on: 路 stratabound 'Telfer-style' gold in Adelaidean metasediments in the Nackara Arc, using stratiform or stratabound structurally-controlled genetic models; and structurally controlled gold and base metal mineralisation in Adelaidean metasediments north of the Anabama - Redan Fault Zone; with lesser emphasis on gold mineralisation related to alteration zones associated with the Anabama Granite路 volcanic-hosted base metals in the Adelaidean Boucaut Volcanics north of the Anabama -Redan Fault Zone; 路 syngenetic gold associated with Adelaidean Braemar Ironstone facies north of the Anabama - Redan Fault Zone; . heavy mineral accumulations in Pliocene sediments (Parilla Sand and Loxton Sand) along the northern margin of the Tertiary Murray Basin; and . diamonds associated with intrusive lamprophyric kimberlites, especially in the western Nackara Arc. Many explorers had noted similarities between the minor gold occurrences in the Nackara Arc of SA and the gold deposits at Telfer in WA, in particular the stratiform and stratabound, ferruginous, Au-bearing sulphidic quartz veining of anticline cores in mildly metamorphosed Late Proterozoic metasediments. Early exploration focussed on stratiform gold, especially as possible along-strike extensions from known minor mineralisation. With subsequent recognition of significant structural controls to ore emplacement at Telfer, later SA-based exploration switched to stratabound but structurally-controlled gold targets. No significant discoveries were reported, but potential was indicated or remains untested at: . the Hill Grange/Agross copper mines, where Cu-Au occurs in veins on local anticlines (EL 1416 Bendigo Station, on ORROROO 1:250 000 map sheet); 路 Kirkeek's Treasure mine, along strike extensions of the original workings (EL 584 Mount Victor, EL 939 Mount Victor); and 路 the Golden Sophia/Luron prospects, which show low-grade but pervasive mineralisation (EL 1528 Giles Nob). In many cases, gold exploration was accompanied by base metal exploration, and significant anomalism was indicated at: 路 Echelon Grid and Gorge Grid, near Wadnaminga, with Cu-Zn values (EL 1102 Copperlinka); 路 several localities on EL 1376 Hope Bank, with As/Sb/Zn/Cu/Pb values; and . Mafeking, with Zn-Pb-Ag values (EL 1416 Bendigo Station, on ORROROO 1:250 000 map sheet). Significant gold and/or base metal prospects indicated by exploration in Adelaidean metasediments and metavolcanics to the north of the Anabama - Redan Fault Zone, which seem to be either structurally-controlled or associated with alteration around Delamerian granites, etc, included: 路 ?structurally controlled (or ?stratabound) Cu in quartz-limonite veining in schists and amphibolites at Anabama Copper Mine (EL 312, 508, 937 Cronje Dam, then EL 1462 Lilydale); 路 anomalous Cu(-Au) in Boucaut Volcanics at White Rock (EL 1462 Lilydale); . disseminated pyrite-chalcopyrite in schist at Two Brothers (EL 312, 508, 937 Cronje Dam); 路 pervasive slightly anomalous Cu-Zn at Division Dam / Anomaly F (EL 312, 508, 937 Cronje Dam); and 路 anomalous Cu-Zn-Pb-Au, structurally controlled and related to alteration associated with a granitic intrusion, in metasediments at Maldorky - Alderman's (EL 1611 Mutooroo Station).

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About this record

Record No rb9800022
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
Mine Name Mannahill Goldfield;Teetulpa Goldfield;Boiekevie Hill prospect;Copperlinka prospect;Nillinghoo prospect;Ethiudna Hill prospect;Cottage Bore prospect
Stratigraphy
Commodity
Notes
Notes: As part of the Broken Hill Exploration Initiative (BHEI), a wide ranging program aimed at promoting exploration in the Palaeoproterozoic metasediments and granitoids in the Olary - Curnamona region, the former Department of Mines and...

Notes: As part of the Broken Hill Exploration Initiative (BHEI), a wide ranging program aimed at promoting exploration in the Palaeoproterozoic metasediments and granitoids in the Olary - Curnamona region, the former Department of Mines and Energy, South Australia (MESA) - now PIRSA - reviewed Open File company exploration data from relinquished Exploration Licences (ELs) on CURNAMONA and OLARY 1:250 000 map sheets, with a view to making the results of prior exploration more easily accessible, and of more use to current and future exploration. The open file data included herein derives from 55 Exploration Licences (ELs) that have been relinquished, surrendered, or allowed to lapse, etc., but does not include exploration on ELs that are still current, or on ELs that were replaced for the same company or companies by subsequent ELs that are still current. Neither does it include data from Mineral Leases (MLs). Because there is no congruity between either the 1:100 000 map sheet boundaries, or the tenement boundaries, or the geological separation between the Palaeoproterozoic Willyama Block and the Neoproterozoic Nackara Arc, this report includes data from exploration programs targeting Adelaidean metasediments on 11 tenements which overlap in part with the Olary 6833 and Mingary 7033 1:100 000 map sheets, the open file exploration data for which have been reviewed separately (see RB 98/23 and RB 92/34). Geographic Locality: Barrier Highway;Yunta;Mannahill;Nackara;Anabama - Redan Fault Zone;Cronje Dam;Yardlowie;Mount Victor;Anabama Hill;Weekeroo Hill;Mount Misery;Giles Nob;Round Hill;Tiverton Homestead;Manunda;Levi Range;Iron Peak;Quondong Vale;Benda Range;Bendigo Station;Lilydale;Oakvale;Mutooroo Station;Nilpena Hill;Devenborough Downs Doc No: RB 98/00022

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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/rb9800022
Citation McCallum, W.S. 1997. RB 98/00022 Review of open file company exploration data from the early 1980s to mid-1997, over the Yunta, Winnininnie, Anabama and Oakvale 1:100 000 map sheets, OLARY 1:250 000 map sheet, South Australia. Departmental Publication - Geological Survey Geoscience Publication. Government of South Australia.
https://pid.sarig.sa.gov.au/document/rb9800022

Technical information

Status
Maintenance and Update Frequency
Geographic Reference GDA2020 (EPSG:7844)
Geo bounding box {"type":"Polygon","coordinates":[[[139.5,-33],[141,-33],[141,-32],[139.5,-32],[139.5,-33]]]}
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