Further Significant Uranium Intersections From Firawa Prospect ? Guinea, West Africa
September 04 2007 - 5:48AM
UK Regulatory
MURCHISON UNITED N.L
AIM SYMBOL: MUU
ASX SYMBOL: MUR
September 4, 2007
Murchison United NL: Further Significant Uranium Intersections From Firawa Prospect-Guinea, West Africa
Highlights
- Final assay results now received from May 2007 RC drilling program at the Firawa Prospect (Guinea, West
Africa) with best results including:
Drill Intersection Section U3 O8 Maximum 1m
Hole RC Length (m) (m) (ppm) Section U3 O8 (ppm)
FRW35 12 13 - 25 771 995
FRW14 6 39 - 45 715 883
FRW34 4 53 - 57 615 840
FRW33 20 22 - 42 524 726
FRW33 2 48 - 50 630 680
FRW15 8 20 - 28 409 693
- Uranium mineralization confirmed over 2km strike length within previously identified 5km uranium anomaly.
- Builds on previous results including 10m @ 652ppm U3O8 (including 1m @ 1,325ppm U3O8), 5m @ 749ppm U3O8
(including 1m @ 1,020m U3O8) and 14m @ 555ppm U3 (including 1m @ 680ppm U3O8).
- Expanded drilling program planned targeting a JORC compliant resource estimate for Firawa.
Drilling Results
Murchison United NL (ASX:MUR)(AIM:MUU) is pleased to announce that the Company has now received all assay
results from its initial uranium drilling program conducted in south-east Guinea, West Africa.
The program, comprising 29 RC drill holes for a total of 1,809m, was conducted by Murchison United during May
2007 at the Firawa Prospect (see Figure 1), one of three large exploration concessions held by Murchison in
Guinea. The program was designed to target a highly prospective 2km section of a previously identified uranium
anomaly which extends for more than 5km within the Firawa exploration licences.
Fig.1 Location of Murchison United's Guinea Projects is available at the following web link:
http://www.ccnmatthews.com/docs/muu0904fig1.pdf
The drilling was undertaken in a deep laterite weathered soil profile. The samples, which consisted mostly of
clay - in many sections wet - were sent to the ALS Chemex laboratory in Bamako, Mali, for preparation and then
forwarded for analysis to the ALS Chemex laboratory in Vancouver, Canada. The uranium mineralization at Firawa
is believed to occur in the clay.
The samples were high temperature dried before splitting and crushing. Additional samples have been collected
from sections indicating the highest radiation, in order to further examine the clay minerals and assess
optimal methods of uranium extraction.
The uranium mineralisation follows an East - West tectonic structure, interpreted as a fault zone, over a
distance of five kilometres. The recent R/C drilling has been conducted over a two kilometre section of this
previously identified anomaly which is regarded as most prospective.
Geological logging of the RC drill chips has indicated the presence of gneiss, pegmatite, quartz veins and
mafic rocks, potentially representing dykes related to the faulting. At this stage the genesis and delineation
of the uranium mineralisation is unclear.
One possibility is that uranium dissolved in water along the fault has been captured in supergene clay
minerals, however forthcoming mineralogical studies are expected to provide further clarification.
A topographical map of the area showing the results of soil sampling carried out previously and the location of
the drill holes is shown in Fig. 2 below:
Fig.2 Topographical map of the Firawa Prospect showing drill hole locations (" + ") is available at the
following web link:
http://www.ccnmatthews.com/docs/muu0904fig2.pdf
A full table of all drilling results received to date from the Firawa Prospect is attached to this release in
Appendix 1.
Commenting on the results, Murchison United's Managing Director, Mr Mark Reilly, said the additional results
confirmed the success of the Company's first drilling program in West Africa, with significant uranium
mineralization now defined over a 2km strike length at the Firawa Prospect.
"We are very pleased with the outcomes, which have confirmed the prospectivity of these tenements and
significantly advance our exploration aspirations in this region," Mr Reilly commented.
"While the drilling completed to date is not sufficiently close-spaced to estimate a JORC compliant resource,
it has provided the basis for an expanded drilling program which we aim to commence early 2008 which will
target an initial JORC compliant resource," he added.
"With drilling due to commence soon in Mauritania, we are looking forward to a particularly exciting period
ahead as we aim to define uranium resources on two fronts," Mr Reilly concluded.
Murchison United has secured an extensive portfolio of uranium exploration projects comprising some 13,600km2
of highly prospective tenements in Mauritania and Guinea, West Africa. Its objective is to delineate
significant new uranium deposits within these under-explored terrains.
Murchison United NL is an Australian-based no liability company whose principal activity is minerals
exploration. The company currently has uranium exploration projects in Mauritania and Guinea in West Africa and
copper interests in the Millennium copper leases in Cloncurry, Queensland and the Maroochydore copper project
in Western Australia.
Shares in the company are listed on both the Australian Stock Exchange (ASX:MUR) and the Alternative Investment
Market (AIM:MUU) of the London Stock Exchange.
For further information regarding this announcement, please call Mark Reilly.
Murchison's Nominated Advisor for the AIM market is RFC Corporate Finance Ltd.
The information in this report that relates to exploration results is based on information compiled by Mr.
Bosse Gustafsson, who is a member of the European Federation of Geologists a Recognised Overseas Professional
Organisation ("ROPO"). Mr Bosse Gustafsson is a full time Executive Director of Murchison United NL and is
responsible for exploration activities in Mauritania and Guinea. Mr Gustafsson has sufficient experience, which
is relevant to the style of mineralisation and the type of deposit under consideration and to the activity,
which he is undertaking to qualify as a Competent Person as defined in the 2004 Edition of the 'Australian Code
for Reporting of Exploration Results, Mineral Resources and Ore Reserve'. Mr Gustafsson consents to the
inclusion in this report of the matters based on their information in the form and context in which it appears.
Appendix 1
The following table includes all significant drilling results received to date at the Firawa Prospect, with new
sections indicated with "##":
--------------------------------------------------------------------------
Drill Len- Comment Intersect New
Hole gth Length Section U3 O8 Max. 1m Samples res-
RC (m) (m) (m) (ppm) Intersect analysed ults
--------------------------------------------------------------------------
FRW1 81 11 36 - 47 169 243 81
--------------------------------------------------------------------------
FRW2 50 50 0 - 50 242 511 52
--------------------------------------------------------------------------
Including 31 0 - 31 315 511
--------------------------------------------------------------------------
Including 5 16 - 21 451 511
--------------------------------------------------------------------------
FRW3 85 32 51 - 83 242 716 85
--------------------------------------------------------------------------
Including 13 60 - 73 358 716
--------------------------------------------------------------------------
Including 6 66 - 72 480 716
--------------------------------------------------------------------------
FRW4 50 8 27 - 35 119 160 50
--------------------------------------------------------------------------
2 48 - 50 279 389
--------------------------------------------------------------------------
FRW5 Not drilled
--------------------------------------------------------------------------
FRW6 Not drilled
--------------------------------------------------------------------------
FRW7 Not drilled
--------------------------------------------------------------------------
FRW8 94 24 57 - 81 125 244 94
--------------------------------------------------------------------------
FRW9 50 46 0 - 46 253 680 50
--------------------------------------------------------------------------
Including 28 16 - 44 360 680
--------------------------------------------------------------------------
Including 14 20 - 34 555 680
--------------------------------------------------------------------------
Including 8 21 - 29 616 680
--------------------------------------------------------------------------
FRW10 Not drilled
--------------------------------------------------------------------------
FRW11 92 21 65 - 86 142 316 92
--------------------------------------------------------------------------
Including 2 73 - 75 304 316
--------------------------------------------------------------------------
FRW12 50 50 0 - 50 250 1,325 50
--------------------------------------------------------------------------
Including 10 39 - 49 652 1,325
--------------------------------------------------------------------------
Including 5 43 - 48 793 1,325
--------------------------------------------------------------------------
Including 3 44 - 47 875 1,325
--------------------------------------------------------------------------
FRW13 50 50 0 - 50 163 599 50
--------------------------------------------------------------------------
Including 7 43 - 50 347 599
--------------------------------------------------------------------------
Including 3 43 - 46 447 599
--------------------------------------------------------------------------
FRW14 60 3 0 - 3 128 167 59
--------------------------------------------------------------------------
30 28 - 58 269 883 ##
--------------------------------------------------------------------------
15 31 - 46 461 883 ##
--------------------------------------------------------------------------
6 39 - 45 715 883 ##
--------------------------------------------------------------------------
FRW15 50 30 9 - 39 207 693 50 ##
--------------------------------------------------------------------------
Including 8 20 - 28 409 693 ##
--------------------------------------------------------------------------
Including 2 21 - 23 530 553 ##
--------------------------------------------------------------------------
Including 2 26 - 28 610 693 ##
--------------------------------------------------------------------------
FRW16 80 9 14 - 23 143 237 80 ##
--------------------------------------------------------------------------
Including 2 16 - 18 227 237 ##
--------------------------------------------------------------------------
FRW17 49 48 1 - 49 143 280 48 ##
--------------------------------------------------------------------------
Including 2 2 - 4 240 255 ##
--------------------------------------------------------------------------
Including 1 17 - 18 266 266 ##
--------------------------------------------------------------------------
Including 8 27 - 35 227 280 ##
--------------------------------------------------------------------------
FRW18 80 1 79 - 80 104 104 80 ##
--------------------------------------------------------------------------
FRW19 80 19 0 - 19 120 194 80 ##
--------------------------------------------------------------------------
13 29 - 42 191 268 ##
--------------------------------------------------------------------------
Including 3 29 - 32 233 267 ##
--------------------------------------------------------------------------
Including 6 36 - 42 215 268 ##
--------------------------------------------------------------------------
FRW20 Not drilled
--------------------------------------------------------------------------
FRW21 Not drilled
--------------------------------------------------------------------------
FRW22 80 9 0 - 9 143 208 80 ##
--------------------------------------------------------------------------
54 16 - 80 150 491
--------------------------------------------------------------------------
including 13 46 - 59 317 491
--------------------------------------------------------------------------
including 2 49 - 51 464 491
--------------------------------------------------------------------------
FRW23 40 38 0 - 38 289 498 40
--------------------------------------------------------------------------
including 3 7 - 10 412 425
--------------------------------------------------------------------------
including 7 18 - 25 416 471
--------------------------------------------------------------------------
including 2 36 - 38 439 498
--------------------------------------------------------------------------
FRW24 48 48 0 - 48 230 573 48
--------------------------------------------------------------------------
including 6 13 - 19 476 573
--------------------------------------------------------------------------
including 2 14 - 16 558 573
--------------------------------------------------------------------------
including 5 35 - 40 409 448
--------------------------------------------------------------------------
including 2 46 - 48 387 445
--------------------------------------------------------------------------
FRW25 50 45 0 - 45 286 593 50
--------------------------------------------------------------------------
including 3 1 - 4 395 510
--------------------------------------------------------------------------
including 6 27 - 33 516 593
--------------------------------------------------------------------------
FRW26 50 38 0 - 38 212 467 50 ##
--------------------------------------------------------------------------
Including 22 1 - 23 303 467 ##
--------------------------------------------------------------------------
Including 2 16 - 18 405 405 ##
--------------------------------------------------------------------------
FRW27 50 31 18 - 49 252 557 50 ##
--------------------------------------------------------------------------
Including 14 22 - 36 406 557 ##
--------------------------------------------------------------------------
Including 5 24 - 29 524 557 ##
--------------------------------------------------------------------------
FRW28 45 No assays greater than 100 ppm 45 ##
--------------------------------------------------------------------------
FRW29 50 50 0 - 50 167 515 50 ##
--------------------------------------------------------------------------
Including 22 8 - 30 245 515 ##
--------------------------------------------------------------------------
Including 6 9 - 15 406 515 ##
--------------------------------------------------------------------------
Including 1 19 - 20 404 404 ##
--------------------------------------------------------------------------
FRW30 40 40 0 - 40 235 1,020 40
--------------------------------------------------------------------------
including 2 3 - 5 588 591
--------------------------------------------------------------------------
including 10 30 - 40 542 1,020
--------------------------------------------------------------------------
including 5 30 - 35 749 1,020
--------------------------------------------------------------------------
FRW31 60 58 0 - 58 162 983 60
--------------------------------------------------------------------------
including 5 1 - 6 678 983
--------------------------------------------------------------------------
FRW32 80 34 34 - 68 209 505 80
--------------------------------------------------------------------------
including 8 37 - 45 408 505
--------------------------------------------------------------------------
FRW33 50 38 12 - 50 439 726 50 ##
--------------------------------------------------------------------------
including 3 15 - 18 504 553
--------------------------------------------------------------------------
including 20 22 - 42 524 726 ##
--------------------------------------------------------------------------
including 2 48 - 50 630 680 ##
--------------------------------------------------------------------------
FRW34 80 62 17 - 79 241 840 80 ##
--------------------------------------------------------------------------
including 7 39 - 46 499 587 ##
--------------------------------------------------------------------------
including 15 52 - 67 434 840 ##
--------------------------------------------------------------------------
including 4 53 - 57 615 840 ##
--------------------------------------------------------------------------
FRW35 85 77 0 - 77 268 995 85 ##
--------------------------------------------------------------------------
including 24 9 - 33 574 995 ##
--------------------------------------------------------------------------
including 12 13 - 25 771 995 ##
--------------------------------------------------------------------------
including 5 20 - 25 863 984 ##
--------------------------------------------------------------------------
including 5 28 - 33 406 593 ##
--------------------------------------------------------------------------
ACN 009 087 852
FOR FURTHER INFORMATION PLEASE CONTACT:
Murchison United NL
Mark Reilly
Managing Director
+618 9322 4071
+618 9322 4073 (FAX)
OR
RFC Corporate Finance Ltd.
Stuart Laing
Nominated Advisor for the AIM market
+618 9480 2506
INDUSTRY: Manufacturing and Production-Mining and Metals
SUBJECT: MEX
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