WELCOME TO DEEP YELLOW LIMITED
ABN: 97 006 391 948
PROJECTS
NORTHERN TERRITORY (September 2008)
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Figure 1: Northern Territory Tenements.
Click to enlarge
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Operational base in Alice Springs
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Defined projects cover 14,850 km2
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DYL has 100% rights to uranium within
Tanami Gold's tenements covering an additional 21,220 km2
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Napperby Farm-Out/Sale to Toro Energy Ltd
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Ongoing CLC and Landowner negotiations for
access to prospective areas
DYL's exposure to the highly prospective
Tanami - Arunta uranium province totals approximately 36,070
km2 comprising:
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26 granted exploration licences covering
9,254 km2 held 100%.
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10 exploration licence applications
covering 5,596 km2 held
100%.
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100% of the uranium rights to a further
21,220 km2 of granted
exploration licences and applications held by Tanami Gold
NL (TGNL).
The target within the majority of the tenement
areas is calcrete-hosted uranium mineralisation similar to
DYL's Napperby deposit. The potential for this style of
mineralisation occurring in buried (palaeo) channels can be
rapidly assessed by airborne electromagnetic surveys and 1 to
2 km spaced shallow drill traverses. Other targets include
roll-front uranium mineralisation at Nonouba 60 km to the west
of the Angela - Pamela uranium deposits.
DYL has been constantly assessing and
prioritizing target areas under granted tenure or applications
within the Territory. Since early 2005 DYL has fully evaluated
and 'relinquished' over 20,000 km2
of unprospective ground (subject to the agreement with TGNL)
and made application for 5,596 km2
of new ground.
Napperby
The Napperby Project is an historic
mineralised zone discovered and explored by CRA Exploration
and Uranerz in the late 70's early 80's. The project comprises
an extensive, consistent mineralised zone within 3 to 7 m
depth from surface in semi-consolidated and unconsolidated
sediments. The project is close to infrastructure, being 150
km NW of Alice Springs along the sealed section of the Tanami
Highway, within 20 km the Alice Springs to Darwin gas pipeline
and with access to the main N-S railway through Alice Springs.
Toro Energy has an Option Agreement with Deep
Yellow Ltd over the Napperby Project which allows 100%
purchase of the project at a capped price per resource pound
(lb) basis at any stage over a 3 year period.
As follow-up to DYL's 2006 drill programme
which defined a JORC code compliant Inferred Mineral Resource
of 1.9 million tonnes at 0.036% (360 ppm) U3O8
for 670 tonne or 1.5 million pounds of U3O8,
Toro completed an initial 2007 drilling program on the
Napperby project and have announced an increased Inferred
Mineral Resource* compliant with the JORC code of 4.6 million
tonnes @ 305 ppm (0.031%) U3O8
for 1,420 tonnes (3.13 million pounds) of contained uranium
oxide (using a 200 ppm U3O8
cut-off, see ASX Release 25 July 2008).
* This new resource total includes the
previous JORC code resource delineated by DYL.
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Figure 2: Completed 2008 drilling grade x thickness
(GT) grid using corrected eU3O8
equivalent grades
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Notes on the analysis in Figure 2:
1) Grade x thickness (GT) - the product of
grade (U3O8ppm) and ore thickness (metres) is used as an
indicator of potential mineability.
2) eU3O8 grades shown here are for
indicative mineralisation purposes only, and samples from
the sonic drilling have been gathered under QAQC procedures
and dispatched for assay. Initial results are pending. Gamma
eU3O8 grades are currently not used by Toro for resource
calculation purposes, but this will depend if ongoing
disequilibrium work provides the basis for increased
confidence in grade estimation from gamma data.
3) Data were generated by applying a cutoff
of 140 ppm eU3O8 to the gamma derived grades. GTs were then
calculated and a grid applied. The lowermost GT increment in
this figure for example, 100 ppm.m, translates to a grade of
140 ppm with a thickness of 0.7m.
A more extensive resource drilling program was
initiated in May 2008 with 7,500 m of drilling completed so
far. (See Figure 3).
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Figure 3: Plan of 2008 drilling to date compared
to current resource area
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Air core drilling with calibrated gamma
logging is guiding the sonic core rig, with sonic holes
assayed and gamma logged. Corrections of gamma data are made
for casing type, probe crystal K factor and ground water
level. This produces equivalent grades ('eU3O8').
The 2008 gamma equivalent (eU3O8)
grades are indicating good continuity in the mineralised zone
to the SW of the previous resource (Figure 3). Assay results
from this drilling will be incorporated into a further
resource update planned for the fourth quarter 2008. The
deposit is still exhibiting a dominance of carnotite
mineralisation within samples.
Although significant resource definition work
is still required, the Boards and Management of both DYL and
Toro are excited at the prospect of the Napperby project being
advanced toward a potentially viable economic mine,
particularly given current long term uranium prices and future
industry demand projections.
Reynolds Range Project
The Reynolds Range Project comprises DYL's ELs
23923, 23924 and 23991 and the uranium rights in TGNL's EL
23888 and EL 23655. These granted tenements are subject to two
Native Title agreements specifically for gold exploration.
An Exploration Agreement for uranium was
signed in late 2007 and the Traditional Owners have cleared
proposed drill areas ahead of a September start-up of aircore
drilling. An airborne electromagnetic survey (AEM) has been
completed over the project area. Results are pending.
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Figure 4: Planned AEM and drilling programs,
Alice Springs district
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Mt Liebig Project
The Mt Liebig Project located 250 km WNW of
Alice Springs comprises two exploration licences contiguous to
the SW of the Napperby tenements. The target is shallow
calcrete hosted uranium mineralisation as per Napperby and/or
Tertiary sandstone hosted roll front uranium mineralisation at
depth. The tenements now 100% DYL were previously held by
Tanami Gold.
A meeting with Traditional Aboriginal Owners
to negotiate access for uranium exploration took place on the
21st November, 2007. The Company has recently been informed
that its proposal to explore for uranium and possible future
mining has been accepted by the Traditional Aboriginal Owners.
A draft agreement will be forwarded to DYL shortly. Permission
has been received to fly an AEM survey over the tenements in
August 2008 and DYL field crew has completed a reconnaissance
visit to check access for the proposed drill programme.
Mt Doreen Project
The Mt Doreen Project tenements cover 150 km
east-west to 20-25 km north-south tract of land located
approximately 340 km northwest of Alice Springs. The tenements
cover north flowing drainages and target palaeochannels off
both the 'hot' Southwalk Granite in the east and from the
Bigrlyi uranium deposit in the central tenement area.
Selected areas within the tenements will be
covered by an AEM survey. Fieldcrews have established access
for an aircore drill programme schedule to commence in late
September.
Nonouba
The Nonouba tenement EL 24547 covering 605 km2
is located 70 km SW of Alice Springs was granted on 17 August
2007. The tenement lies 60 km west along strike from the
Angela - Pamela uranium prospect.
The Nonouba ground was previously explored for
uranium by Uranerz from 1972-1983. Uranerz identified two
prospects, "Daria" and "Nonouba", and
returned assays up to 1900 ppm U3O8
over 0.5 m, hosted by carbonaceous - pyritic Undandita
Sandstone. The target is roll front uranium mineralisation as
delineated at Angela-Pamela.
DYL hopes to commence RC percussion drilling
in October 2008 following site clearance by the Aboriginal
Areas Protection Authority.