Pilbara Projects

Pilbara Projects

Westar’s Opaline Well Project lies within the historical Nullagine Goldfield some 40 km to the west of the township of Nullagine and in similar geology to the Calidus Resources 1.25 million ounce Warrawona deposit ~70km to the NE of Opaline Well.

Historical mining centres in proximity to the project area include Edelweiss and Corboys (where gold mineralisation is interpreted to be confined to quartz veins hosted in basalts), the Ore Tree Hill gossan trend, which represents a superficial development of copper mineralisation on altered, weakly mineralised pillowed and high-magnesian basalts and Victory-Tabletop, where significant and extensive carbonate alteration and quartz veining is associated with gold mineralisation. The Victory Mine had limited production with 1,818.4 t of ore processed at an average grade of 31.6 g/t gold for 57.4 kg (1,845 oz) of gold mined. Other mining activity at Coongan Star and Consolidated Gold Mines produced 2,655 t of ore at an average grade of 58.5 g/t gold for 155.3 kg (4,993 oz) of gold (Gondwana Resources, 2006).

Opaline Well Project

Opaline Well Project

The Opaline Well Project is located approximately 190 km southeast of Port Hedland and 40km west of Nullagine and consists of a one Exploration Lease (E45/4997) of 67km2.  Highly under explored region now attracting mid tiers, such as Greatland Gold, who are actively exploring on adjacent tenure.

The general topographic relief of the Opaline Well project is largely influenced by the bedrock geology and is characterised by low hills with strike-controlled ridges to the east.

Remnants of preserved c. 3020–2920 Ma De Grey Supergroup are preserved in the east of the project, including unconformably overlying clastic metasedimentary rocks of the Gorge Creek Group. Ultramafic rocks intrude the southern area of the Kelly greenstone belt in the southeast of the project. The Coongan and Kelly greenstone belts hosts several small gold prospects and mines in shear zones parallel to, but offset from, the main shears in the area.

Westar considers the project to be prospective for both shear-hosted gold and VMS style base metal mineralisation.  Historical rock chip samples in the Project area include 6.32 g/t, 7.95 g/t, 13.7 g/t , 13.22 g/t, 17.0 g/t, 20.5 g/t, 44.6 g/t and 200g/t Au.

An historical base metal rock chip anomaly by Great Southern Mines, adjacent to the historic workings of Opaline Well-2 returned assays of 0.25-1.15% Cu, 0.14-1.85% Zn, 79-155g/t Ag and 0.19-0.41g/t Au. This is proximal to a smaller gravity high with a larger, more substantial gravity anomaly lying to the south-east of Opaline Well-1. There are no records of drilling at this location and the gravity anomaly is untested.

2021 field reconnaissance and rock chip sampling by Westar confirmed gold and base-metal mineralisation at the Triberton Creek Prospect, including  1.3g/t Au in OWR025 and, 0.3 g/t Ag from OWR062 and 218ppm Cu from OWR063.  At the Opaline prospect rock chip samples returned 508 ppm Cu, 1,080ppm Zn and 343ppm Pb OWR019.

A follow up airborne EM survey was completed in Q4 CY2021 to rapidly identify discrete conductors representing potential massive sulphide drill targets.  Four priority conductors have been identified, of which anomaly 101 is the priority for field reconnaissance, planned for Q3, CY2022

The Opaline Well Project and late time (Ch 40) identified AEM anomalies

Anomaly 101, and potentially related anomalies 201, 202 and 203

Anomaly 101 (centre) with surrounding anomalies 201 and 203, Line 10300, conductivity section

Gidgee North

Sandstone Projects

Gidgee North

The Gidgee North Project is located approximately 640km northeast of Perth in Western Australia and consists of Gidgee North E53/1920, South East Bore E51/2044, E53-2227,E51-2090 (both under application) and the Geoff Well Prospect (farm-in), E 53/1832-I, with a combined total of of over 460km2 of tenure.

Gold Prospectivity

Large areas of the Project remain essentially unexplored despite favourable geological and structural settings.  With the aid of specialist consultants, Westar has generated 14 high-priority gold targets from extensive geochemical and geophysical datasets.  These targets will be advanced through boots-on ground prospectivity mapping and sampling with the highest ranked targets planned for drill-testing in late CY22.

Base metal prospectivity

Detailed analysis of SkyTEM AEM data flown over the project by Panoramic resources in 2015 identified multiple conductors over the Gidgee North Project that are potentially analogous to the nearby Altair Cu-Zn prospect, held by Horizon Gold (ASX: HRN).   The Geoff Well farm also contains historical base-metal drilling with assays including 20m@ 0.17% Zn in GVER001 and 8m @ 1.12% Cu in GVER010.

Westar refined the SkyTEM AEM targets in late 2021 and early 2022 with detailed mapping, soil sampling and ground geophysics.    Interpreted results confirmed the presence of anomalous base-metals as well as indications of metal zonation, which are well-understood features of VMS-style mineralisation.   Nine priority targets were tested in Q3 2022, with assays pending, however, initial pXRF results confirmed mineralized Cu and Zn horizons and the project is considered a fertile paleo-seafloor exhalative system.

Historic Drilling at the Vela Prospect, Geoff Well Project (farm-in)  with Cu and Zn intersections.

Phase 1 RC drillhole locations and lab prioritised assay results (remainder of assays pending).

Soil sampling team at work

Gidgee South

Sandstone Projects

Gidgee South

The Gidgee South project includes the original Gidgee South tenement (E 57/1055) and the 2021 project acquisitions of the historic Birrigrin Mining Centre (BMC, M57/352) and the Carbine Bore Prospect (P 57/1363 & P57/1368).

At the BMC, extremely high-grade gold was mined in the early 1900’s from over 30 historical shafts.  Over 11,000 ounces of gold were produced with gold grades of up to 196 g/t Au at the Wheel Ellen mine.   Situated on a granted Mining Lease (M57/352), old workings were generally limited to 30 metres depth due to groundwater.   Only limited and small-scale exploration has been historically completed.

The Carbine Bore prospect to the south of the Project, is known to have produced substantial alluvial gold with nuggets up 6 ounces in size.  It was originally believed the nuggets were secondary in nature as the gold was in a cemented laterite, however, after earthworks commenced and extensive loaming of the laterite was complete, the source of this gold is now considered to be deeper and is thought to be of a primary origin and presents to the surface in a series of feeders.

The original Gidgee South Project (E57/1055) contains a large, coherent gold in soils anomaly between the BMC and Carbine Bore Prospects and multiple historic workings.  Mineralisation appears focused on N-S trending quartz veins often adjacent to BIFs (banded iron formations) with the eastern portion of the greenstone belt largely under cover and with no exploration to date.

Exploration across the Gidgee South Project by Westar date has produced results including;

  • 3m @ 3.29g/t Au from 35m in GSRC0005, including 1m @ 6.27g/t Au from 35-36m
  • 3m @ 3.41g/t Au from 55m in GSRC0047, including 1m @ 7.14g/t Au from 55-56m
  • 1m @ 7.45g/t Au from 42m in GSRC0051 (prior to entering and unmapped Stope)
  • 1m @ 0.492g/t Au from 16-17m depth (Drillhole GSAC0027)

Rock-Chip samples include;

  • 3g/t Au and 14.3g/t Au in mullock at the historical “Tassie’s Workings”
  • 38g/t Au in Quartz / goethite mullock 100m south of Tassies (‘Tassie South’)
  • 61 g/t Au and 0.14 g/t Au in the Carbine Bore laterites
  • 16g/t Au at a quartz-breccia outcrop to the north of Carbine Bore

A 2021 Deep Ground Penetrating RADAR program was completed in 2021 and in conjunction with recent field work and drilling success to date will guide drilling programs in 2022 targeting high grade gold mineralisation across the project.

Mineralisation at the “Tassies Prospect” defined in 2021 RC drilling

RC Drilling and portable XRF analysis of cuttings

RC Drilling and sampling

Historic Birrigrin Mining Centre – Pellerin headframe



Covering a combined land area of 460 km2 (132km2 Pending), the Sandstone Projects (Gidgee North and Gidgee South) are centrally located between the towns of Sandstone to the south, Meekatharra to the northwest and Wiluna to the northeast.

The Projects lie within the Gum Creek Greenstone Belt of the Youami Terrane, which forms a lensed, broadly sinusoidal belt measuring some 100km in length and 24km in width. The Gum Creek Greenstone Belt has historically produced over 1M Oz of gold and Horizon Gold’s Gum Creek Project currently hosts JORC 2012 Resources of 15.9 Mt @ an average of 2.7 g/t Au for 1.39 Moz Au.1

(Horizon Gold Ltd ASX announcement 12 July 2019)

Mt Magnet Projects

Mt Magnet Projects

Historically, the Mt Magnet district has produced approximately 6 Million ounces of gold since gold was first discovered in the late 1800’s.

Both the Coolaloo and Winjangoo Projects have received minimal modern and systematic exploration, historically forming smaller projects within substantial regional landholdings by previous explorers.

Activity in the region is at multi-year highs with Westgold Resources recently recommissioned the Tuckabiana Gold Mine, approximately 30km NE of Winjangoo in the northern arm of the greenstone belt and the Kirkalocka Mine to the South of Coolaloo.

Within Mt Magnet, Ramelius Resources continues to prove the huge potential of the region with deeper systems including the Eridanus Resource of 20Mt @ 1.2g/t Au for 760,000 Oz.  

(ASX announcement 13th Sept: Denver Gold Forum Presentation with Eridanus drill result)

Winjangoo Project

Mt Magnet Projects

Winjangoo Project

The Winjangoo project (E58/536) is located 20km northeast of Mount Magnet and comprises one EL (two sections) of 29 blocks covering 89 km2.  Access is via the Great Northern Highway then gravel tracks.  A historical gold in soil anomaly contains a peak value of 2,059ppb Au, however much of the project is completely unexplored.

The greenstone units of the Winjangoo EL comprise a thick sequence of gabbro and are bounded by granite to the east and the west.  The gabbro is subdivided into a general gabbroic unit and a strongly differentiated gabbro with interlayered units of serpentinite, peridotite and talc-chlorite-tremolite schist with the gabbroic body, which is interpreted to be a composite intrusion, rather than a single magma chamber. These supracrustal rocks are flanked by younger granites of the Tuckanarra Suite and the Bald Rock Supersuite.

Westar has completed auger sampling, airborne geophysical surveys, detailed litho-stratigraphic interpretations and field mapping, which generated multiple targets based on complex fold interferences and faulting, potentially forming mineralisation ‘traps’ along fluid conduits in iron-rich stratigraphy.

A 3,000m RC drilling program in CY2021 tested 4 priority targets, intersecting and intersecting numerous shear zones, with thick quartz veining in altered basalts.  Results included 2m @ 0.22 from 52 in WJRC0006 and 4m @ 0.14 g/t Au from 24 metres in WJRC0036.

Additional targeting work is planned for 2022 using enhanced geophysics to generate priority targets along the interpreted intersections of shear zones and fold/fault interferences under alluvial cover where previous soil sampling is considered ineffective.

Mt Finnerty

Southern Cross Projects

Mt Finnerty – Ramelius Resources Farm-in/JV
(WSR 25% Free Carry to Decision to Mine)

The Mt Finnerty Project (E16/505) is located approximately 430km east-northeast of Perth and 100km northeast of Southern Cross in the Archaean Marda-Diemals greenstone belt.  Historical exploration across the Mount Finnerty Project has defined several prospects referred to as Flinders, Flinders Northeast and Tasman.   Initial RAB and follow-up RC drilling at the Tasman and Flinders prospects in the mid 1990’s and early 2000’s returned numerous >1 g/t gold results, particularly at the Flinders prospect where mineralised trends remain open at depth and along strike.  No drilling since circa 1996 when the price of gold was around $400 AUD / Oz.

Significant assays from historical drilling include;

  • 9 m @ 98.2 g/t Au from 62m (MF023); including
    • 4m @ 215.8 g/t Au from 62m.
  • 1m @ 236.3 g/t Au from 126m (MFRC029).
  • 24m @ 3.68 g/t Au from 45m (MF038); including
    • 4m @ 12.6 g/t Au from 46m.
  • 9m @ 9.95 g/t Au from 51m (MF8880/1376).
  • 6m @ 14 g/t Au from 39m (MF8580/1414).
  • 8m @ 3.2 g/t Au from 48m (MRFB040).
  • 3m @ 6.4 g/t Au from 54m (MF034).
  • 4m @ 3.4 g/t Au from 57m (MF044).

In late 2021, farm-in partner Ramelius Resources completed 3,027m of RC drilling in 16 drill holes at Mt Finnerty, testing a 3km strike extent of the granite-greenstone contact.  Drilling targeted areas of best historic anomalism, with new intersections demonstrating deeper primary hosted mineralisation.  Furthermore, the new results have extended the zone of significant mineralisation to the south away from the Flinders Prospect, with the significant intercept of 13m at 4.37g/t Au in FLRC0015 located at the Tasman Prospect.

Significant intersections include;

Flinders Prospect
  • 5m at 66.7g/t Au from 175m in FLRC002, including
    • 1m at 52.4g/t Au from 176m and also including
    • 1m at 274g/t Au from 177m
  • 4m at 14.1g/t Au from 136m in FLRC003, including
    • 1m at 43.4g/t Au from 137m
  • 1m at 35.0g/t Au from 125m in FLRC004
Tasman Prospect
  • 13m at 4.37g/t Au from 182m in FLRC015
  • 5m at 2.63g/t Au from 146m in FLRC0013

 Flinders Prospect Plan – Drilling Results.

Flinders Prospect – Cross Section

Tasman Prospect – Cross Section

Mineralisation encountered at the Mt Finnerty Project is typically associated with mafic volcanics along an irregular and often sheared granite contact. Most of the mineralisation is located proximal to the granite/ mafic lithological contact where the intrusion of the granite has fractured and inter-fingered with mafics and the granite develops a biotite-rich gneissic texture. Secondary mineralisation appears to be associated with the adjacent felsic volcanics. Supergene enrichment of gold in a lateritic weathered profile is also seen above the Flinders prospect, as it is at the neighbouring Tasman prospect.

Westar considers the tenement is highly prospective, primarily for gold mineralisation. The historical exploration undertaken to date has not effectively tested, nor defined the mineralisation potential of the systems defined by previous explorers.

Coolaloo Project

Mt Magnet Projects

Coolaloo Project

The Coolaloo Project (E59/2329) is located approximately 25km SW of Mt Magnet, 430 km NE of Perth and is adjacent the Great Northern Highway. The Project covers an area of approximately 136 km2 and is accessed via the Daggar Hills gravel road at the southern end of the tenement.

The Geology within the tenure comprises predominantly units of the Austin Downs Supersuite that are overlain with sheetwash, lacrustrine units consisting mixed dunes, evaporite and alluvium, saline and gypsiferous evaporite deposits, clay, silts, sands, and playa lakes. Historical geological mapping and airborne magnetic data indicate Archean greenstones and significant fault structures that previous explorers considered prospective for both Mt Magnet and Big Bell style gold mineralisation.  ​

Westar has completed auger sampling, flown over 3,000 line km of geophysical surveys, conducted independent targeting and interpretations and subsequentially completed 11,000m of aircore drilling, testing 10 targets in 2021.

Established geochemical indices using multi-element assays indicate vectors to mineralisation in areas of depleted regolith, with six of the targets hosting coincident multi-element and low-level gold anomalism associated with structural trends.

Westar intends to conduct further target definition and ranking prior to considering deeper RC drilling targets.

Westar flown geophyics over the Collaloo Project and regional magnetics

Westar 2021 drilling anomalies over target areas

Parker Dome Project

Southern Cross Projects

Parker Dome Project – Ramelius Resources Farm-In/JV (WSR25% Free Carry to Decision to Mine)

The Parker Dome project is located approximately 60 km south-south-east of the Southern Cross township and is within the Southern Cross greenstone belt of the Southern Cross Domain, on the western margin of the northwesterly elongated Parker Dome.

The geology of the Parker Dome region is dominated by a poorly exposed, gneissic granitoid dome approximately 40 km x 20 km which is flanked by metamorphosed ultramafic, mafic and clastic greenstones of the Younami terrane.

The Parker Dome Project hosts 3 elongate gold anomalies identified by defined by soil sampling and shallow drilling by previous explorers.

Anomaly 1 – is 600m x 200m and has several shallow drill hits including 3.62g/t, 1g/t and 0.86g/t Au. No drilling greater than 12m deep.

Anomalies 2 & 3 – are +30ppb Au soil anomalies with a peak of 138ppb Au and are 1km x 500m and 800 x 350m in dimension and have had no drilling Soil anomalies are large and untested by drilling giving potential for a significant discovery.

Westar considers the project area has favourable geology, litho-structural conditions conducive to Archean-type shear mobilised mineralisation and inadequately tested gold anomalies from historical exploration activities.

Preliminary investigations based on field reconnaissance, historical reports and datasets suggest several potential sources of gold anomalism, including;

  1. Laterite (undetermined whether transported or in-situ)
  2. Remnant greenstone rafts hosted in the Parker Dome gneiss-granite
  3. Discrete NE-SW trending structures that link to the adjacent greenstone belt; akin to Havana-Suva and gold cities style mineralisation recorded in the Scotia batholith, NW of Kalgoorlie.

Zenith Minerals (ASX: ZNC) holds tenure adjoining and to the West of the Parker Dome Project and has recently reported results at their “Split Rocks Project” including;

Dulcie Far North:

  • 4m @ 10.2 g/t Au (eoh), incl 2m @ 19.8 g/t Au (eoh)
  • 9m @ 1.8 g/t Au incl 2m @ 6.2 g/t Au

Scott’s Grey:

  • 12m @ 1.7 g/t Au (eoh) incl. 1m @ 7.1 g/t Au and 5m @2.1 g/t Au
  • 2m @ 7.6 g/t Au followed by a 3m mine working and another 2m @ 2.4 g/t Au, total width 7m

Dulcie North:

  • 32m @ 9.4g/t Au, incl 9m @ 31.4 g/tAu
  • 8m @ 1.2 g/t Au and 2m @ 3.7 g/t Au
  • 5m @ 1.0 g/t Au