Bangor. Combined first annual/final report at licence full surrender, for the period 23/8/2018 to 22/11/2019.
Published: 14 Oct 1919 Created: 12 Nov 2024 Revised: 12 Nov 2024

A large area centred ~20 km east-northeast of Port Germein, covering ground at the southern end of the Flinders Ranges, has been explored for possible altered sediment - hosted gold deposits of disseminated, Carlin style which are genetically...

A large area centred ~20 km east-northeast of Port Germein, covering ground at the southern end of the Flinders Ranges, has been explored for possible altered sediment - hosted gold deposits of disseminated, Carlin style which are genetically associated with hot, basement interacting dispersive hydrothermal fluids. To try to find these deposits, licensee Yandan Gold Mines (Yandan) is targeting siltstone lithologies in prospective sedimentary units that are close to known gold workings and occur in structurally complex settings, and has utilised research conducted by CODES at the University of Tasmania (UTAS) to identify such strata and fertile places within the Adelaide Geosyncline orogenic setting. The genetic model holds that the fine grained gold now seen within these clastic units is positioned within remnant, still abundant interstitial organic matter and diagenetic pyrite that are believed to be sourced from what was gold-enriched ocean water during their time of deposition. This gold has since then become re-located and often also concentrated to ore grades by the pervasive action of hydrothermal, structural or magmatic processes. The Bangor licence was taken up because a review of the airborne magnetic data for the Wirrabara region identified favourable structural features (folds) in fertile Sturtian to Marinoan stratigraphic units. An identified large synclinal fold was then prioritised in relation to its proximity to known gold mineralisation. The main prospective siltstone strata addressed were those in and near the basal contact of the Tapley Hill Formation with the Appila Tillite. During the single year of tenure of this ground, 81 reconnaissance soil geochemical samples were collected at ~400 m intervals along public roads or tracks and laboratory analysed by partial leach methods for 54 assorted mobile metal ions (MMI). In addition, 2 rock chip geochemical samples were collected from an abandoned quarry site. Although the results of the soil and rock chip sampling were sufficiently positive to warrant follow-up exploration activities, highlighting both gold and base metal anomalism in the vicinity of the historic Charlton copper workings, Yandan chose to fully surrender EL 6237 due to recognising what the company considered to be insurmountable land access issues.

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About this record

Record No mesac29002
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Mineral Company Report - Mineral Exploration
Contributor
Sponsor
Tenement EL 6237
Tenement Holder Yandan Gold Mines Pty Ltd
Operator DGO Gold Limited
Geological Province Adelaide Geosyncline
Mine Name Avonmore quarry
Stratigraphy Tapley Hill Formation
Commodity
Notes
Geographic Locality: Southern Flinders Ranges;Wirrabara Range;Mid-North;Bangor;Murray Town;Telowie;Tandowie;Melrose
Doc No: Env 13224

Geographic Locality: Southern Flinders Ranges;Wirrabara Range;Mid-North;Bangor;Murray Town;Telowie;Tandowie;Melrose Doc No: Env 13224

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/mesac29002
Citation Taylor, N. 1919. Bangor. Combined first annual/final report at licence full surrender, for the period 23/8/2018 to 22/11/2019. Mineral Company Report - Mineral Exploration
https://pid.sarig.sa.gov.au/document/mesac29002

Technical information

Status
Maintenance and Update Frequency
Geographic Reference GDA2020 (EPSG:7844)
Geo bounding box {"type":"Polygon","coordinates":[[[138,-33.5],[138.5,-33.5],[138.5,-32.5],[138,-32.5],[138,-33.5]]]}
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Lineage