Red Rock Resources plc
26 July 2006
RED ROCK RESOURCES PLC
Exploration Update - Mkushi Project
Dated: 26 July 2006
Red Rock Resources plc ('Red Rock' or the 'Company') the mineral exploration and
development company focused on advancing iron ore, uranium and manganese
projects in Australia and East Africa, is pleased to provide an update of the
exploration programme under the Mkushi prospecting permit.
Following approval of the exploration programme by the Zambian Mines Development
Department on 31st May 2006, ground operations have begun at Red Rock's 400
hectare Mkushi prospecting permit area crossing the Great North Road and
adjacent to the Tanzam railway. Geological mapping, surface channel sampling,
and shallow trenching will delineate the areal extent of the psilomelane (a
group name for hard black unidentified manganese oxides) mineralization within
the license, both at surface in the west and under thin cover in the east of the
license area. Upon conclusion of the detailed mapping programme a rotary
percussion drilling programme of between 600m and 750m will begin in August to
test deposit thickness and continuity and to enable a preliminary resource to be
established in part of the license area.
No resources or reserves under internationally recognised standards have been
established on the property. All results to be reported in the current
exploration phase and subsequently will be reported under the Canadian CIM
standard.
Summary
A significant high grade manganese ('Mn') deposit, first located in 1931-1932,
was examined in the Mwendafye Hills area of Central Zambia. The manganese
deposit was traced along the northerly margin of a small granitic intrusive body
0.5 to 1.0 km wide striking in an easterly-north easterly direction. The
manganese is traceable on the northerly dip slope margin of the granitic
intrusive body for a distance of 4 km. The manganese is traceable in outcrops up
to 10 meters in thickness, in float talus boulders, and in fine grained
manganese particles and black manganese soils over a strike length of 7.3 km.
Small scale hand mining produced a recorded 80,000 tonnes of 50% Mn between 1954
and 1962 from one small pit location in a toe of the slope area.
A recent 10 kg composite sample of manganese ore returned analytical values of
52% Mn. Another oxidized manganese sample returned values of 43.7% in
multi-element analysis.
This is a significant deposit of high grade manganese ore along a strike length
of 7.3 km, thicknesses ranging to 10 metres plus and unknown down dip depth
along the northerly margin of the granitic intrusive body. This occurrence has a
significant tonnage potential for high grade manganese in outcrop and subcrop
along the length of the strike.
Observations
Near the junction of the Mkushi farm block road and the tarred Nakonde highway a
significant outcrop of manganese was traced down dip slope along the northerly
margin of the granitic intrusive body for a distance of 100 metres in outcrop
and test pits. The topmost part of the outcrop is covered with several large
remnant crops of coarse quartz breccia flooded with manganese. Beneath the
quartz breccia remnants lies a massive outcrop of manganese up to 10 metres
thick plus, traceable along strike (in an easterly-north easterly direction) in
outcrop and test pits for several hundred metres.
For four km easterly along the north margin of the granitic intrusive body
abundant massive manganese boulders are found in talus slopes. Manganese
outcrops were observed in two locations approximately 50 metres uphill of the
toe of the slope. In overburden along the toe of the slope abundant manganese
float boulders from fist sized to 50 cm in diameter were observed along with
fine manganese particles 2 cm minus and black manganese soils.
4 km easterly along strike from the described first significant outcrop, a
massive manganese outcrop in the Nakonde highway ditch marks the location where
the manganese body crosses under the Nakonde highway into a flat valley area
north of the highway. At 5 km along strike from the first significant outcrop
the manganese body was located in a flat valley area in outcrop and float
boulders striking in an easterly-north easterly direction. In this area the
manganese body was observed in outcrop and sub-crop over a 10 metres thickness.
The manganese ore observed was usually massive and a steely grey colour on
freshly broken surfaces
Some manganese samples contained quartz fragments; however selective mining in
clean massive material would overcome any dilution effect. One boulder of bedded
chert was observed among manganese float boulders in the toe of the slope
overburden area.
Conclusion
The Mwendafye hills manganese deposit is a significant high grade manganese
deposit with a potential for substantial tonnage of around 50% Mn. The ore is
traceable in outcrop, sub-crop, float boulders and manganese soils over a strike
length of 5 km. Thicknesses of up to 10 metres plus were observed in outcrop.
Dip slope depths are unknown and may have significant potential. The surface
expression of this manganese deposit suggests straightforward geological
evaluation and mining exploitation with minimum overburden removal. The location
adjacent to major rail and road arteries and within 4 km of a railway loading
area makes this a prime target for evaluation and exploitation.
Current exploration programme
Geological mapping, sampling, and trenching will require some 14 days to
complete. In the west of the license the manganese mineralization is generally
exposed, but where it strikes east and crosses the highway and continues in flat
terrain under thin cover, an excavator will carry out shallow trenching across
the line of strike to delineate manganese mineralization.
Surface and trench samples will be taken to Kitwe for analysis. Upon completion
of the detailed mapping programme, a rotary percussion drilling programme will
follow. Drill cuttings will be processed in a cyclone settler and bagged at 5
metre intervals. Upon completion of the drilling programme, the depth and nature
of the psilomelane ore reserves will be determined, a report written, and
conversion to a mining license applied for.
Declaration
The geological information in this report is based on information compiled by Dr
Wolfgang Wiessner, a consulting geologist to Red Rock. Dr Wiessner has a Diploma
in Geology and a Doctorate in Natural Sciences from the Technical University of
Karlsruhe, and is a Member of the Geological Association of Germany and the
OberRhein Geological Association. Dr Wiessner, who has been practising geology
for over 25 years, has sufficient experience which is relevant to the style of
mineralisation and type of deposit under consideration and to the activity which
he is undertaking to qualify as a qualified person under the AIM Rules.
Dr Wiessner consents to the inclusion in this RNS announcement of the matters
based on his information in the form and context in which it appears.
Enquiries:
Andrew Bell 07766 474849 Red Rock Resources plc Chairman
John Simpson 020 7512 0191 ARM Corporate Finance Ltd Nominated
Adviser
Ron Marshman / 020 7628 5518 City of London PR Public Relations
John Greenhalgh Limited
Updates on the Company's activities are regularly posted on Red Rock's website,
www.rrrplc.com.
This information is provided by RNS
The company news service from the London Stock Exchange
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