21 November 2008
"Exploring for the Future"
Rum Jungle

Rum Jungle - Gold, Base Metals and Uranium

The Rum Jungle Project is located 65km south of Darwin and 20km northeast of Batchelor along the Stuart Highway and Alice Springs to Darwin Railway line.  The Project encompasses over 80km2 of prospective Proterozoic stratigraphy in the Pine Creek Geosyncline.

 

The Project abuts the eastern margin of the Archaean Rum Jungle Complex.  The Complex is mapped as two sub cropping domal inliers of Archaean schists and fractionated I plus S-type granite gneisses unconformably draped by Lower Proterozoic Manton Group and Mt Partridge Group metasediments of the Pine Creek Geosyncline.  The age of the geosyncline is constrained between 2470 and 1870Ma.  Multiple phases of folding and faulting affected the Pine Creek rocks between 1880 - 1760Ma resulting in gently folded north-south trending stratigraphy.  The sedimentary rocks have been metamorphosed to sub-greenschist facies. 

 

The regionally extensive and northeast trending Giants Reef Fault truncates the Rum Jungle Complex and displays dextral strike slip faulting, displacing the Rum Jungle Complex up to 7km.

 

Within the Project leases the geology is dominated by Crater Formation, Coomalie Dolostone and Whites Formation metasediments of the Mt Partridge Group.  Dolerite plus gabbro sills of the Zamu Dolerite intrude these metasediments.  The Whites Formation is dominated by pyritic carbonaceous shale and hosts the Rum Jungle uranium deposits plus base metal mineralisation at Woodcutters. 

 

A preliminary review of open file exploration data has highlighted two gold exploration targets, Acacia North and Demonchaux Creek, where additional drill testing is warranted. 

 

Acacia North (Gold)

 

Normandy reported gold mineralisation from brecciated to massive quartz veining displaying pyrite and arsenopyrite within a granophyric differentiated mafic sill intruded into Whites Formation carbonaceous shales at Acacia North.  Gold anomalism has been exposed in costeans over 500m strike with better intersections reporting 6m @ 1.17g/t Au, 4m @ 1.68g/t Au and 3m @ 3.45g/t Au.  Twenty nine RC holes and one diamond hole were drilled into the prospect.  Encouraging RC drill results include:

 

          4m @ 4.90g/t Au from 20m in ANRC005

          6m @ 6.64g/t Au from 31m in ANRC006

          10m @ 4.30g/t Au from 15m in ANRC007

          6m @ 11.3g/t Au from 72m in ANRC029

 

Mineralisation remains open at depth below the 6m @ 11.3g/t gold intersection.

 

Demonchaux Creek (Gold)

 

Rock chip sampling by Normandy over the Demonchaux Creek prospect returned anomalous assays up to 71g/t Au.  Subsequent costeaning returned assays up to 18m @ 3.85g/t Au.  Gold mineralisation is associated with disseminated pyrite within dolomitic shale of the Whites Formation.  RC holes were drilled into the prospect area but deeper holes failed to intersect significant mineralisation.  Better drill hole intersections included:

 

          8m @ 6.04g/t Au from 3m in DCRC004

          3m @ 47.8g/t Au from surface in DCRC005

 

Compilation of the historical data indicates that the above intersections are part of a high grade, plunging shoot that is open at depth.

 

 

 

 

 

 

 

 

 

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