Hicks Hill. Annual reports plus final report to licence expiry/full surrender, for the period 9/12/2009 to 8/12/2014.
Published: 20 Apr 1915 Created: 12 Nov 2024 Revised: 12 Nov 2024

A previously discovered (SADM, 1950s) partly outcropping body of magnetite-rich Palaeoproterozoic BIF rock (jaspilite), located ~46 km east of Tarcoola, has been investigated afresh for its current economic potential as an iron ore resource....

A previously discovered (SADM, 1950s) partly outcropping body of magnetite-rich Palaeoproterozoic BIF rock (jaspilite), located ~46 km east of Tarcoola, has been investigated afresh for its current economic potential as an iron ore resource. Similar bodies located north of Tarcoola at Wilgena Hill and Coolybring are also being explored by Stellar Resources Limited (Stellar) under other licence tenure. The aeromagnetic and gravity anomalies associated with the jaspilite body at Hicks Hill lie mainly within the subject EL 4389, but also cross into EL 3655 to the south, a licence which is also held by Stellar. The Hick’s Hill jaspilite has been tentatively geologically correlated with the iron formations of the Middleback Ranges (the magnetite and haematite deposits that supply OneSteel’s iron and steel making operations at Whyalla). During the first licence year, Stellar undertook the following activities: - conducted an Aboriginal heritage work area clearance survey in November 2009; - acquired a detailed ground gravity survey (of 443 readings made at 100 m station intervals along 21 north-south lines spaced 200 m apart) during December 2009; - performed geophysical modelling and interpretation of PIRSA regional aeromagnetic data and the new Stellar gravity data during February 2010; - drilled 6 NNW-inclined RC holes for a total penetration of 572 m during May 2010, to appraise the quality of the Hicks Hill magnetite BIF body in its east central part. The location of the Hicks Hill drill traverse was determined by the outcome of making the Aboriginal heritage clearance survey, that prevented direct access to the hill, included a 500 m wide buffer zone around the base of it; - conducted geochemical analyses of the drill cuttings from holes HH102 – HH106 during June 2010; and - conducted DTR tests on the mineralised intervals encountered in holes HH102 - HH104 and HH106, during June 2010. The DTR head samples consisted of 6-metre and 4-metre composites of selected RC drill chips, and the composite samples' feed size was nominally 80% passing 38 microns. This testwork gave an average Fe grade for the Hick’s Hill Iron Formation of approximately 33% Fe, with calculated iron recovery at approximately 80% and a mass recovery of approximately 33%. This work would suggest potential exists to produce a high quality product of 69% Fe with low to moderate silica of 3.8% and low impurities (aluminium, phosphorous and sulphur). The resultant modelled magnetic and ground gravity profiles of the gravity and magnetic anomalies at Hick’s Hill are similar to those noted over Onesteel’s Magnet iron ore Project in the Middleback Ranges. At the Magnet Project, offsets in the peak gravity and magnetic values along the profiles reflect stratal variations between primary haematite ore, with associated underlying mixed haematite-magnetite and magnetite-haematite carbonates, and magnetite ore in both silicate and carbonate facies BIF. At this stage, Stella concluded that good potential existed for it to define, through carrying out additional delineation drilling within the Hick’s Hill prospect area, a magnetite iron resource of in excess of 90 Mt grading approximately 33% Fe. The deposit's location near Kingoonya and within 10 km of the Trans Australia Railway would provide it with an operational and mined concentrate transport advantage over other Central Gawler deposits. During licence Year 2, Stellar's work was focussed on trying to resolve the Aboriginal heritage - related land access issue that was adversely affecting EL 4389, in order to gain greater access to the magnetite mineralisation that forms Hicks Hill. Discussions were held with consulting anthropologists, exploration companies with similar issues in South Australia, and PIRSA. Stellar was also involved in negotiating with potential joint venture partners to advance the project. Because of these matters, no field work was done. During licence Year 3, activities largely involved the presentation of data to potential JV partners, plus managing legal work intended to restructure Stellar's ownership of its iron ore projects under a new, wholly owned spin-off corporate entity called Tarcoola Iron Pty Ltd. No on-ground work occurred. During licence Year 4 Stellar continued to seek a joint venture partner to help it explore the licence area. However, the presence of the exclusion zone over Hicks Hill, coupled with a reduction in iron business investor interest in non-DSO magnetite projects, meant that a satisfactory outcome was not achieved. During licence Year 5, no progress was made on any front. All efforts were now going towards securing a joint venture partner. But at the end of this year, with little perceived likelihood that an acceptable access agreement could be negotiated with the traditional landowner group, and taking into account the now globally ample supply of magnetite iron ore and its weakening price, Stellar decided to fully surrender tenure at Hicks Hill.

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About this record

Record No mesac25651
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Mineral Company Report - Mineral Exploration
Contributor Haines Surveys Pty Ltd
Sponsor Stellar Resources Limited
Tenement EL 4389
Tenement Holder Hiltaba Gold Pty Ltd;Tarcoola Iron Pty Ltd
Operator Stellar Resources Limited
Geological Province
Mine Name Hicks Hill magnetite deposit
Stratigraphy
Commodity
Notes
Geographic Locality: North Well Station;Hicks Hill;Woomera Prohibited Area;2009 Hicks Hill Gravity Survey
Doc No: Env 12131
Drillhole: HH101 - HH106;(340441 - 340446)

Geographic Locality: North Well Station;Hicks Hill;Woomera Prohibited Area;2009 Hicks Hill Gravity Survey Doc No: Env 12131 Drillhole: HH101 - HH106;(340441 - 340446)

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/mesac25651
Citation Rigg, A.M.;McVeigh, S.;Edgecombe, D.R.;Blight, P.G. 1915. Hicks Hill. Annual reports plus final report to licence expiry/full surrender, for the period 9/12/2009 to 8/12/2014. Mineral Company Report - Mineral Exploration
https://pid.sarig.sa.gov.au/document/mesac25651

Technical information

Status
Maintenance and Update Frequency
Geographic Reference GDA2020 (EPSG:7844)
Geo bounding box {"type":"Polygon","coordinates":[[[135,-31],[135.5,-31],[135.5,-30.5],[135,-30.5],[135,-31]]]}
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Lineage