Data release - as updated [made at SA Director of Mines' discretion] : Wadnaminga and Outalpa (the Olary JV Project, later renamed the Blue Rose Project). Joint annual reports for the period 19/7/2008 to 18/7/2018.
Published: 27 Nov 1918 Created: 12 Nov 2024 Revised: 12 Nov 2024

During Year 12 of the Olary JV Project (2008-2009), field work was undertaken only on EL 3849 Outalpa to make up for the earlier underspending on that licence relative to commitments. In early 2009, a ground radioactivity survey was acquired using...

During Year 12 of the Olary JV Project (2008-2009), field work was undertaken only on EL 3849 Outalpa to make up for the earlier underspending on that licence relative to commitments. In early 2009, a ground radioactivity survey was acquired using a hand-held gamma ray spectrometer across the area of previously recorded high surface radioactivity located to the south of the Domenic prospect. This was followed in June 2009 by the drilling of 4 southwards-inclined RC holes for 295 m at what was called the Ameroo Hill North uranium prospect, to test the downdip extent of the confirmed radiometric anomalies. The returned 1-metre hole interval drill cuttings samples were logged with the spectrometer, and 89 of them showing radioactivity were submitted for laboratory assaying. The assay results were disappointing, because the peak uranium assay value obtained was only 560 ppm U, and there was a lack of lanthanum compared with the high cerium-lanthanum contents of the surface samples, suggesting the presence of refractory minerals in the mica schist bedrock. 10 grab rock chip samples of ferruginised metasediment were collected for assaying from locations along an ENE trending shear zone at the Peryhumuck copper-gold prospect. Four of the samples returned >2% Cu, to a maximum of 7.57% Cu, and three samples returned >2 g/t Au, to a maximum of 5.19 g/t Au. The mineralised samples also had a high content of silver (grades of >5 g/t Ag in three samples) and molybdenum (>200 ppm Mo in three samples) as well as cobalt and bismuth. One sample had anomalous lead (0.16% Pb). A consistently high level of sulphur suggested to PacMag that the mineralisation had been predominantly tied to sulphides prior to weathering. A 10 kg bulk drill cuttings sample hand collected from hole RABR822, which was considered to have the most representative intersection of the Blue Rose copper oxide mineralisation, was subjected to trial crushing, grinding and flotation tests. Three ore concentrates obtained after the flotation stage were assayed for Cu, Fe and Au by atomic absorption spectroscopy on aqueous aqua regia solutions, and returned average grades of 1.73% Cu and 7.9 g/t Au for the 72% of the sample which comprised a <75 microns grind size fraction cycloned test feed. During Year 13 of the project, exploration work comprised the collection of 4 magnetite rich grab rock chip samples from outcrops of Neoproterozoic iron formations on EL 3848 that are interpreted as stratigraphic extensions of Royal Resources' Razorback Ridge Project iron occurrences. High iron contents of up to 50.8% Fe were returned from laboratory assaying. Aeromagnetic data images show that a possible 32 km of semi-linear magnetic anomalies which could represent shallowly buried iron formations are present on the Blue Rose JV's tenements. Earlier detailed field mapping indicated that there are at least two discrete magnetite rich units in the western portion of the Wadnaminga licence area that dip gently northwards and have locally tight folding, with shallow west-plunging fold noses potentially giving zones of major thickening. In outcrop the observed magnetite is medium grained, and occurs within discrete units having a high stratabound iron content which are interbedded with units of siltstone and tillite. During year 14 of the project (2010-2011), PacMag received detailed aeromagnetic and radiometric datasets from the farminee Bonython Metals Group (BMG) consortium which had been acquired in September 2010 over the Wadnaminga North and Wadnaminga South portions of a much larger regional fixed-wing survey airborne geophysical that was aiming to delineate all shallow subcrops of the Braemar Iron Formation. BMG also provided the company late in 2011 with a report (appended herein) giving its pre-drill assessment of the magnetite potential of EL 3848. Previously, on 24/12/2010, the Blue Rose Project partners had reached an agreement with BMG giving it the rights to farm in and explore for iron ore on that tenement. In a separate dealing made on 3/2/2010, a private company WASCO Mining Pty Ltd was granted an option to purchase the Blue Rose copper oxide deposit in order to mine and process the minerals there. WASCO's principals have extensive experience in small to medium scale copper production in Australia, as well as direct access to the Chinese copper consumption market. The sale agreement would apply to a 12 square km area at Blue Rose. This agreement includes provision for a staged refund of historical exploration spending incurred there, by a gross revenue royalty payable to the Blue Rose JV partners that will be levied on the value of the production of metals mined from the deposit. On 18/7/2011, EL 3849 Outalpa was fully surrendered by the Blue Rose Project partners, leaving just EL 3848 Wadnaminga active (see the surrendered licence's final report held separately in Env 12286). During year 15 of the project, PacMag did no gold exploration work on behalf of the JV partners. An archaeological survey was conducted over the Golden Sophia prospect area in preparation for drilling, but this work was not able to proceed owing to a new native title claim being filed that covered EL 3848. The remainder of the year was spent negotiating an aboriginal heritage protection agreement. In May 2012, iron ore exploration farminee BMG was placed into liquidation by court order. At the end of the reporting year, the company remained in liquidation and grossly under-spent on its farm-in commitment, and so forfeited its rights to continue to participate in the project. On 19/7/2012, EL 3848 was renewed over the same 996 square km area for a fourth 5-year term, as EL 5129. During year 16 of the project, ongoing issues with obtaining native title land access permissions prevented new project operator Red Gold from doing any work. During year 17 of the project, an aboriginal heritage protection agreement for EL 5129 was finalised, and further planning for a drilling programme was undertaken. During years 18 through to year 21 of the project, no work was done. On 28/10/2015, a licence second partial surrender was made, of three peripheral portions totalling 280 square km or ~28% of the former area of the Wadnaminga tenement.

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About this record

Record No mesac29726
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Mineral Company Report - Mineral Exploration
Contributor University of South Australia. Ian Wark Research Institute;GPX Surveys Pty Ltd;Archer Geophysical Consulting Ltd;Onyx, Inc.
Sponsor Gawler Craton Resources Pty Ltd;Filsell, I.R.;PacMag Metals Limited;Bonython Metals Group Pty Ltd
Tenement
Tenement Holder PacMag Metals Limited;Giralia Resources NL;Bonython Metals Group Pty Ltd;Giralia Resources Pty Ltd;Red Gold Australia Pty Ltd;Lodestone Mines Limited
Operator PacMag Metals Limited;Bonython Metals Group Pty Ltd;Red Gold Australia Pty Ltd
Geological Province
Mine Name Ameroo Hill North prospect;Blue Rose prospect
Stratigraphy
Commodity
Notes
Notes: This release to the public of the subject mineral exploration data, namely, company data which was acquired more than 5 years ago, is being done by DMITRE in accord with the provisions of Section 77D of the Mining Act 1971 and Regulation 88...

Notes: This release to the public of the subject mineral exploration data, namely, company data which was acquired more than 5 years ago, is being done by DMITRE in accord with the provisions of Section 77D of the Mining Act 1971 and Regulation 88 of the Mining Regulations 2011. On 21/1/2011, at the conclusion of the Olary JV Project four year long earn-in period, the Blue Rose Joint Venture Agreement was signed between PacMag Metals Ltd, a wholly owned subsidiary of Entrée Gold Inc., and the two project licences' former owner Giralia Resources NL, a wholly owned subsidiary of Atlas Iron Limited. The agreement set out terms under which the JV partners would fund ongoing exploration activities according to their respective 51% and 49% interests. On 30/6/2011, Giralia Resources NL changed its corporate name to Giralia Resources Pty Ltd. On 23/8/2012, PacMag Metals Ltd sold its 51% interest in the Blue Rose Project to Red Gold Australia Pty Ltd, a wholly owned subsidiary of Entrée Gold, Inc. Geographic Locality: Manna Hill;Benda Range;Olary Ranges;Mount Victor Station;Anabama Hill;King Bluff;Manunda Station;Yunta;Grampus Hill;Outalpa Hill;Plumbago Station;2010 Braemar Iron Project Aerial Magnetic Survey [part];2010 Braemar Iron Project Aerial Radiometric Survey [part] Doc No: Env 09357 Drillhole: AMRC001 - AMRC004;(270353 - 270356);RABR822;(332310);YAM044;(283577);YAM045;(283578)

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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/mesac29726
Citation Clifford, M.J.;Moreau, X.;Kneer, S.;Quast, K.;Tichy, T.;Hillam, J.;Rossiter, A.;Archer, G.;Zheng, R. 1918. Data release - as updated [made at SA Director of Mines' discretion] : Wadnaminga and Outalpa (the Olary JV Project, later renamed the Blue Rose Project). Joint annual reports for the period 19/7/2008 to 18/7/2018. Mineral Company Report - Mineral Exploration
https://pid.sarig.sa.gov.au/document/mesac29726

Technical information

Status
Maintenance and Update Frequency
Geographic Reference GDA2020 (EPSG:7844)
Geo bounding box {"type":"Polygon","coordinates":[[[139,-33],[140.5,-33],[140.5,-32],[139,-32],[139,-33]]]}
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