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ROPER BAR IRON ORE PROVINCE - Roper Bar Project

 

 

The Roper Bar Iron Ore project is located in the Roper River region of the Northern Territory, some 40 kilometres from the Gulf of Carpentaria. The nearest settlement is at Roper Bar, 80 kms to the northwest.

The Roper Bar tenement area totals almost 2,100 sq kms, comprising six granted exploration licences EL25672, EL26759, EL24307, EL24944, EL24665 and EL26992. The project is located in the northern part of the Northern Territory, a geological region endowed with numerous world class mineral deposits.

The iron ore deposits have many attractive attributes to develop into a major project.   Located only 40 kms from the coast, the area is ideally placed for export of a bulk commodity.   Furthermore, the top end of Australia is closer to Asian steel mills than any other major iron ore producing region.

A drilling program in 2008 confirmed substantial ironstone under cover assaying up to 60% Fe.  Subsequent beneficiation testwork successfully upgraded material of moderate grade to 63%-65% Fe using low cost gravity techniques.

A geological mapping program conducted during March 2009 extended the known area of outcropping iron mineralisation to 55 square km, some of which yielded surface samples assaying over 60% Fe.

In 2009 RC drilling was completed on areas D, E , F (east) and F (west).   Although much of this drilling was completed on wide-spaced traverses typically 400 metres apart, the continuity of the hematite mineralisation allowed three JORC-compliant Inferred Mineral Resource calculations to be completed.   These are:

Area D : 90 million tonnes of hematitic iron ore @ 37.2% Fe

Area E : 12.3 million tonnes of hematitic iron ore @ 44% Fe

Area F (east) : 14 million tonnes of hematitic iron ore @ 49% Fe

         including 7 million tonnes @ 59% Fe.

Mining development will start at the DSO (direct shipping ore) at Area F (east).   Mining, infrastructure, environmental and community studies and consultation processes have commenced.   A conveyor or short haul road 50 kilometres to the coast is envisaged as the optimum transport solution.  A barging operation would then take the ore to a Cape size vessel in the Gulf of Carpentaria.  After Darwin, this is closest shipping point from Australia to the Asian steel mills.

The current timetable incorporates initial export of 1.5mtpa.   Investigations into beneficiation of the lower grade ore are underway.  

Whilst development plans are in train, WDR intend to carry out further mapping and drilling to refine resource definition and explore other target areas within the tenement group.   It is planned to complete 20,000 metres of drilling in the second half of 2010, targetting 600-800mt of iron ore at grades of 40%-65% Fe.*

 

       

Outcrop of Sherwin Ironstone membar at Roper Bar Area E

Outcrop of Sherwin Ironstone Formation assaying 59% Fe at Area F

RC drilling at Roper Bar Area D

RC drilling at Area E

 

ROPER BAR IRON ORE PROVINCE - Mountain Creek Project

This is WDR's second iron ore project area located adjacent to and northwest of the Roper Bar project area.   Mountain Creek EL27143 covers 1,000 square kilometres and is 100% owned by WDR.   An adjoining tenement held by  Tianda resources Ltd, is subject to a Joint Venture whereby WDR acquire 70% interest by spending $850,000 over three years.

Limited mapping and sampling was complted on the ground in field season 2009 following grant of tenement in August.   Mapping shows the "Hells Gate Hinge line" extends from the Roper Bar project area into the Mountain Creek area.   This is a major geological structure which has influenced the development of high grade hematitic iron ore mineralisation.

The prospective Sherwin Ironstone member (SIM) also extends from Roper Bar project area into the Mountain Creek EL.   Surface samples have reported assays in the range 46-62% Fe.  A detailed ground gravity survey is in progress to define sites for drill testing in 2010.

 

     Outcrop of Sherwin Ironstone Formation at Mountain Creek


Rover Joint Venture - Copper-Gold

WDR has entered into a joint venture with listed company TNG Limited (ASX Code : TNG) with respect to several leases in the emerging Rover Field, situated to the south west of Tennant Creek in the Northern Territory. Under the terms of the Rover joint venture with TNG Limited, WDR can earn up to an 80% interest in the tenements by spending $1.35m on exploration.

EL 25581 has a boundary some 800m east of Westgold Resources Ltd’s (ASX Code : WGR) Rover 1 prospect, and 2km south-east of Adelaide Resources Limited’s (ASX Code : ADN) Rover 4 project.

Recently announced intersections from the Rover 1 project included:

  • 32m at 20.8g/t Au from 467m
  • 65.75m at 11g/t Au from 492m
  • 49m at 5.8g/t Au from 477m; and
  • 135m @ 1.9% Cu.

In 2009 WDR completed a detailed airborne magnetic survey over the most prospective part of the Rover area. This defined the magnetic targets broadly outlined by historical government data. WDR also completed a detailed gravity
survey on EL24471, which outlined a substantial new target.

In the first half of 2010, WDR will drill the priority targets to test for copper-gold mineralisation.    There has been no previous drilling on the selected targets.

EL 24471

In recent years the gravity geophysical technique has been successfully applied by explorers in the Tennant Creek region to complement magnetic surveys, and to explore for non-magnetic ironstone bodies.   A detailed gravity survey commissioned by WDR in the northern part of EL 24471 was completed in August.   The results, shown in Figure 3, have clearly defined a significant gravity anomaly.     A single deep drillhole by previous explorers on the edge of this feature reported 2 metres at 0.5 g/t Au.    Following site clearance, this response will be drill tested in 2010


 

Limbla

The Limbla project area is believed to be highly prospective for uranium mineralisation, base metal and nickel mineralisation.   It comprises one granted EL of 365 square kilometres.

Historical uranium prospects occur at Albarta, Illogwa Creek and Tourmaline Gorge.  WDR has completed detailed magnetic and radiometric surveys over these areas with a view to defining drill targets.

In 2010 an airborne EM survey was complted over the northern part of the tenement area.   The data indicates priority areas for follow-up for possible nickel sulphide mineralisation.

 

 

Spring Hill

Spring Hill is located in the Pine Creek Gold Field, 150 km south of Darwin.   The tenement package comprises an 1100 ha Mining Lease Application surrounded by the 36 km2 Exploration Licence.

Western Desert Resources are reviewing the opportunity for development of a modest scale heap leach operation for this project.

 

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