Perth, Mar 31, 2009 AEST (ABN Newswire) - Pilbara explorer, Warwick Resources Limited (ASX:WRK) today announced that it has outlined further high grade iron ore mineralisation on its 100% owned Woggaginna iron ore project near Newman.
Woggaginna is located 55km southeast of Newman and 35km south of BHP Billiton's Jimblebar iron ore mine and railway.
Mapping and rock chip sampling at the Wishbone prospect confirmed a further 1.2km strike length of high grade iron mineralisation, increasing the total strike length to 2.7km. Another 1.5km of strike of the host Banded Iron Formation (BIF) sequence at Wishbone remains to be mapped and sampled.
Twelve sample traverses undertaken to the northwest of the drilled area returned high grade iron mineralisation (to 63.8% Fe) with low impurities, as summarised in Table 1.
Table 1: Length weighted average grades of 12 rock chip sample traverses at Wishbone prospect
-------------------------------------------Average width Fe% SiO2% Al2O3% P% LOI%22.6m 60.89 3.51 1.68 0.065 7.15-------------------------------------------
Semi-continuous rock chip samples collected on traverses perpendicular to strike. All samples were analysed by X-Ray Fluorescence Spectrometry (XRF). Loss on Ignition (LOI) values were determined using Thermo-Gravimetric Analyses at 1000oC.
A sample traverse of 68m @ 58.8% Fe previously taken from this area is additional to the above results.
This follows excellent results from Phase 1 RC drilling at Wishbone, announced last month, which demonstrated thick, high grade iron mineralisation extending from surface to over 70m vertical depth.
Using magnetic data, the Company has identified over 40km of cumulative strike length of BIF units on the Woggaginna project, of which about one third has so far been mapped and sampled, and only 3km tested by drilling. Areas of iron enrichment, typically 20-50m wide and from 300-1,000m long, and grading up to 63% Fe are developed over the moderately to steeply dipping BIF units.
The Company intends to undertake a second phase of drilling at Wishbone in April 2009.
Warwick's iron ore projects near Newman are:
Jimblebar Range contains an Inferred Mineral Resource of 11.7Mt @ 57.6% Fe, with low levels of impurities (2.2% Al2O3, 0.06% P). The deposit consists of two zones of haematite-goethite mineralisation which extend from near surface to over 70m depth. The deposit is located only 8km from BHP Billiton's large Jimblebar iron ore mine and railway.
Caramulla South contains an Inferred Mineral Resource of 13.8Mt @ 53.9% Fe. The deposit consists of two shallow zones of hardcap Marra Mamba iron mineralisation, each approximately 1,000m long by 150-200m wide, located near the northern margin of the exploration licence. The deposit is located 19km to the east of BHP Billiton's Jimblebar iron ore mine and railway and borders on BHP Billiton's tenements to the north.
Western Creek contains a 3km long outcrop of Marra Mamba Formation with iron enrichment. Based on positive results from limited drilling to date, the Company considers the Western Creek project to have a Marra Mamba exploration target of 13 to 21Mt at 56% to 59% Fe*. The project also contains CID and enriched BIF targets which remain to be explored.
Woggaginna has extensive areas of iron enrichment, developed over Banded Iron Formations (BIFs). Initial RC drilling at the Wishbone prospect yielded broad high grade iron intersections including 53m @ 60.5% Fe, 51m @ 60.8% Fe and 31m @ 62% Fe. Over 40km of BIF is evident in magnetics, with only 3km drilled to date.
McCamey's South adjoins BHP Billiton's McCamey's Monster mining lease and contains Marra Mamba iron ore targets.
Jimblebar CID - a 3km long mesa from 75m to 150m wide capped by pisolitic iron mineralisation. An initial drill traverse completed across the CID demonstrated that the channel contains up to 7m of iron-rich pisolite grading to 57% Fe. Phosphorous levels are very low, ranging from 0.020% to 0.025%.
Ten Mile CID is a recently identified channel iron target over 3km in length and up to 400m wide, with potential for further mineralisation beneath shallow cover. Initial rock chip sampling returned grades up to 58.5% Fe.
Grassroots CID Targets - Multiple targets for channel iron mineralisation have been identified on the Company's tenements.
Contact
Bruce McQuitty
Warwick Resources Limited
Phone: +61-8-9227-6680
Mobile: +61-409-929-121
Email: bmcquitty@warwickresources.com.au
Website: www.warwickresources.com.au
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