Yarri Project

(E31/1117 – OreCorp earning up to 80%, E31/1173, E31/1175, P31/2119, P39/5600, P39/5601 - OreCorp 100%, E39/1914 – OreCorp 95%)

 The Yarri Project comprises five granted Exploration Licences, three granted Prospecting Licences and seven Licence applications covering approximately 420km2. The Project is approximately 150km northeast of Kalgoorlie between the Keith-Kilkenny Tectonic Zone (KKTZ) and the Laverton Tectonic Zone (LTZ).

Yarri Project - Tenement Location

Hobbes Licence – E31/1117 (OreCorp earning up to 80%)

The Hobbes Licence covers a portion of the Edjudina Greenstone Belt, Pig Well Graben and north-northwest trending KKTZ within the Kurnalpi Terrane of the Archaean Eastern Goldfields Province. The gold mineralisation at Hobbes is preferentially hosted within the older volcaniclastic, andesite and carbonated mafic units. There is also a porphyry intrusive relationship. A zoned alteration pattern is recognised of distal epidote-chlorite alteration assemblage, transitioning into more proximal biotite-epidote-magnetite and carbonate-haematite-silica alteration assemblages, with a silica-sericite-sulphide core associated with the gold mineralisation.

The main zones of gold mineralisation identified to date within the Project are at the Hobbes Prospect. The central portions of Hobbes and Hobbes North Prospects are defined by coherent blankets of supergene gold mineralisation >1g/t Au up to 15m thick. The main supergene gold mineralised zone at the Hobbes Prospect covers an area of about 400m by 300m. There is a second comparable size supergene mineralised zone >1g/t Au, 500m to the southwest.

Drilling has intersected primary mineralisation beneath the supergene zones. This primary mineralisation is open in all directions and only tested with very limited drilling.

Hobbes Project - Drilling

Hobbes Project - Cross Section

E31/1173, E31/1175, P31/2119 (OreCorp 100%)

In May 2020, OreCorp acquired from Cosmo a 100% legal and beneficial interest in Exploration Licences E31/1173 and E31/1175 and Prospecting Licence P31/2119 covering an area of 34km2 immediately north of the Hobbes licence. The licences form part of the Yarri Project.

The licences straddle the Archaean sediment-tuff filled Keith-Kilkenny Rift, with felsic and mafic to ultramafic sequences to the east. The local geology consists of north-northwest-striking, vertical to steeply dipping greywacke, chert and felsic to intermediate volcaniclastic rocks bounded by the Menangina Batholith to the west, and an elongate granodiorite body bordering the eastern margin.

Most of the gold deposits in the region are hosted by granitoids/felsic intrusives, intermediate volcanics or Pig Well Graben metasediments. Many deposits display a direct or spatial association with granitoids/felsic porphyry intrusives. The adjacent historical Porphyry Mine (held by Saracen Mineral Holdings Limited) has mineral resources of 670,000 ounces.

Previous exploration dates back to the 1960’s and has been restricted due to disjointed licence ownership.  OreCorp’s ownership consolidation, geological understanding and targeting will aim to refine the existing targets through the collation of open file geophysical, drilling and geochemical data.

E39/1914 (OreCorp 95%) and P39/5600, P39/5601 (OreCorp 100%)

In October 2019 OreCorp completed an agreement with CGM (WA) Pty Ltd (Chalice) to acquire their interest in the Jericho Project. The tenements lie 40km north-northeast of Hobbes in the Kurnalpi Terrane and on the western margin of the well-mineralised Laverton Tectonic Zone.  Local lithologies are dominated by felsic volcaniclastic metasediments, shales and BIF.  Previous surface geochemistry, RAB and RC drilling has defined two prospects of interest – Choirboy and Jericho.

Choirboy Prospect

Located within E39/1914, the Choirboy Prospect is associated with a mylonitic shear zone defined by tectonic cherts and quartz veins within a sequence of felsic metasedimentary schists, graphitic and sulphidic shales.  Historical drilling, including 14 RC holes and 74 RAB holes, has defined a north-south mineralised zone interpreted by previous operators as dipping shallowly to the east, over a strike length of >800m. Better RC intercepts (using a 0.5g/t cut off) include:

CBP001 - 8m @ 1.66 g/t Au from 0m
CBP007 - 4m @ 3.66 g/t Au from 42m
CBP008 - 15m @ 0.95 g/t Au from 61m
CBR014 - 2m @ 5.07 g/t Au from 47m
CBR022 -12m @ 1.31 g/t Au from 25m

RC drilling to date is on nominal 100m line spacing and the mineralisation is open along strike and down dip.  Infill and extension drilling is required to further test this prospect.

Jericho Prospect

Located within P39/5600, the Jericho prospect is an early stage target defined by a semi-continuous gold-in-soil anomaly covering an area of 1,200m x 100m, peaking at 522 ppb Au. The anomaly predominantly overlies felsic metasediments and volcaniclastics to the east and west of a prominent BIF ridge which trends north-northwest and dips steeply to the east. The anomaly has been lightly tested by 14 RAB holes on ~200m line spacing, with maximum downhole intercepts of 1m @ 1.7 g/t Au and 1m @ 1.3 g/t Au in holes RCRB0059 and RCRB0038 respectively.