|
GASCOYNE
AND ASHBURTON Gondwana Resources Limited has
applied for 1,300 km˛ of tenure across 14 exploration licences in the Gascoyne/Ashburton
region of Western Australia. The
tenements have been selected for uranium exploration using regional airborne
radiometric surveys and the Mindex database of uranium occurrences. An intensive exploration program
is planned for the 2010 field season to include drilling, geochemistry and
geophysics after the tenements have been granted.
Uranium tenements
in NW Western Australia - 1,300 km˛ in area Red
Rock Bore Uranium Prospect The Red Rock Bore exploration
licence application E08/1968 is located on Maroonah station, 320 kilometres
south of the port of Dampier. The principal
feature of Red Rock is an inselberg or exfoliating granite dome that stands 35 metres
above the surrounding sand plain. In August 2009, field
investigations including footborne scintillometry and rock chip sampling were
carried out by the Company’s uranium-specialist geologist, Syd Morete. The strongest ground radiometric anomaly was
located on top of the rock. Four samples were collected and
submitted to Genalysis Laboratory Services for assay using a 4-acid digest and
analysis via ICPMS for uranium and certain other elements. Rock chip sample 09RRRK003
returned 946ppm uranium and 15ppm
thorium (U:Th=63), located at 361153mE-7408776mN (MGA Zone 50). This result suggests the presence
of uraninite. No secondary uranium
minerals were observed. Three other rock chips within the
radiometric anomaly returned less than 37ppm uranium.
Red Rock, a granite
inselberg, contains surface rock chip assays up to 946ppm Uranium In November 2009, a low level, detailed airborne radiometric survey was
conducted by UTS Aeroquest at 20m height and 20m line spacing using their
Fletcher Aircraft. This survey will
assist in planning for the work to be carried out immediately the tenement is
granted - ground radiometric survey, channel geochemical sampling and a
drilling program The survey was designed to map
the area of surface radiometric response and has located an extensive uranium
channel anomaly where expected around the 946ppm U geochemical anomaly
discovered in August 2009. In addition,
a new and stronger uranium channel anomaly has been identified 550m to the
north east. The uranium channel has been
processed and ground stripping calibrations have been applied. Planned follow-up ground work will ascertain
whether the rock chip represents a small enriched zone near the surface, or is
representative of fresh rock in the whole of the inselberg shown in the
photograph.
Detailed radiometric survey uranium channel image |
