Cowarna Rocks Project

The Cowarna Rocks Project comprises one exploration licence (E28/2238) covering 94 km2 and is located 75 km east of Kalgoorlie, north of the trans Australia railway line.

The project principally covers granitic rocks of the Kurnalpi Terrane with minor mafic rocks on the margins. Systematic soil and auger geochemistry has been completed by other companies in the late 1990s. Depth of recent transported cover rocks is unknown and review of past work is recommended prior to commencing on ground exploration activities.

Mapping in the previous quarter indicated extensive alluvial hematite in the valley of Cowarna Creek. The hematite extends for 3.4km up to the north boundary of the tenement, and is about 700m wide. The thickness of the hematite rich alluvial deposit is unknown, and drilling is required to determine the thickness, percentage recovery of hematite and grade of the recoverable hematite.

A drill pattern of 130 aircore holes was planned during the December Quarter, with east-west lines 200m apart, with holes 100m apart along lines. A program of work to drill these holes was submitted to the DMP, and approval was received. The initial holes were drilled as one aircore hole per line in the middle of the deposit, with 18 holes drilled for 96m.

Drill samples of the hematite rich gravel were taken at 1m intervals, and have been submitted for dry magnetic separation of the hematite granules, and analysis of the hematite product. The holes were logged, with a visual estimate of the percentage of hematite granules recorded. The hole locations and hematite granule intervals and percentage estimate are in Table below, Cowarna Creek Hematite Granule Intercepts.

A pit was dug in the centre of the deposit, and the bulk sample of hematite rich gravel submitted to a metallurgical laboratory for testwork.

Results are pending.

Cowarna Creek Hematite Granule Intercepts
Hole No North MGA Zone 51 East MGA Zone 51 Dip Azimuth (T) Hole Depth (m) HG Top (m) HG Base (m) HG Thick (m) HG Percent Estimate
CRAC001 6593204 445300 -90 360 6 1 2 1 15
CRAC002 6593400 445368 -90 360 6 1 2 1 20
CRAC003 6593604 445461 -90 360 6 1 3 2 15
CRAC004 6593798 445651 -90 360 5 1 3 2 10
CRAC005 6593994 445700 -90 360 6 1 3 2 27
CRAC006 6594202 445803 -90 360 5 1 3 2 12
CRAC007 6594401 445891 -90 360 5 1 3 2 17
CRAC008 6594605 445955 -90 360 5 0 3 3 22
CRAC009 6596795 445991 -90 360 5 1 2 1 25
CRAC010 6595005 445970 -90 360 5 1 3 2 20
CRAC011 6595197 446099 -90 360 5 1 2 1 15
CRAC012 6595605 446171 -90 360 5 1 3 2 27
CRAC013 6595790 446106 -90 360 5 1 2 1 25
CRAC014 6596003 446202 -90 360 7 1 4 3 18
CRAC015 6595400 445169 -90 360 5 1 3 2 12
CRAC016 6593000 445250 -90 360 5 1 3 2 15
CRAC017 6592800 445230 -90 360 5 1 2 1 20
CRAC018 6592630 445170 -90 360 5 1 2 1 40

Outlook

  • This area has the potential to host Detrital Iron Ore in a river valley as in the adjacent tenement to the west, as shown in the map.
  • Mapping and drilling is underway to discover the amount of detrital iron ore occurring in the valley.
  • The project area also has the potential for gold and base metals and this will be investigated by soil geochemistry and follow up drilling of anomalies.