| Tue 7 Mar 2006, 12:00 | | Lonmin Plc announces display of Drill Core from it |
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LON
LOLMI
Lonmin Plc announces display of Drill Core from its Sudbury PGM Joint Venture
(Incorporated in England and Wales)
(Registered in the Republic of South Africa under registration number
1969/000015/10)
JSE code:LON
Issuer Code: LOLMI & ISIN: GB0031192486
("Lonmin")
7 March 2006
Lonmin Plc Announces Display of Drill Core from its Sudbury PGM Joint Venture
Lonmin Plc announces that it will be displaying, with Inco Limited, diamond
drill core on March 7 and 8 at the Core Shack at the Prospectors & Developers
Association of Canada (PDAC) Conference to be held in Toronto, Canada, from
their previously announced Sudbury PGM joint venture. Lonmin entered into the
joint venture with Inco in January 2005 to explore for low sulphide high PGE-Au
mineralisation on six Inco properties: Levack North, Trillabelle, Denison,
McKim, Capre and Wisner.
The joint venture has targeted a type of PGE-Au mineralisation recently
identified in Sudbury Ontario, where high grades of PGE"s are associated with
low levels of copper-nickel sulphides (low sulphide high PGE-Au mineralization).
This type of mineralisation has become an increasingly higher profile
exploration target in the Sudbury Basin and is being explored, evaluated and in
some instances mined by a number of companies.
The following diamond drill core and analytical results resulting from this
joint venture will be shown:
Core
Property Hole Number From To length % Ni
m m (m)
Denison LM0010-0 373.8 380.0 6.2 0.23
LM0010-0 464.6 472.7 8.1 0.08
Denison LM0014-0 514.0 529.3 15.3 0.11
LM0014-0 529.3 544.5 15.2 0.96
Wisner LM0068-0 21.2 41.3 20.1 0.02
Including 39.0 41.3 2.3 0.05
Wisner LM0065-0 4.1 4.8 0.7 0.31
LM0065-0 10.4 18.8 8.4 0.04
Levack North 85536 -P 56.0 0.09
1023.7 1079.7
Property % Cu Pt g/t Pd g/t Au g/t Pt-Pd-Au
g/t
Denison 0.08 2.45 7.09 8.14 17.68
0.02 1.09 3.97 3.79 8.85
Denison 0.11 1.10 2.04 0.86 4.00
1.17 0.78 1.20 0.31 2.29
Wisner 0.09 0.89 0.75 0.27 1.91
0.41 3.29 3.09 0.96 7.34
Wisner 1.06 1.28 1.98 0.88 4.14
0.16 1.15 1.13 0.35 2.63
Levack North 1.29 2.69 5.54 1.08 9.31
Details of the quality control procedures for these drill results are as
follows: Half core samples are delivered to the ALS Chemex sample preparation
facility in Sudbury, Ontario, where the entire sample is weighed and then
crushed to 70% -10 mesh. ALS Chemex then homogenizes the crushed reject by
passing it once through a Jones riffle and then recombines the two halves from
which a 200-250 gram portion is split using the same Jones riffle. The split is
ring pulverised to 85% -200 mesh from which a 100 gram split is sent to their
analytical facilities in Vancouver, British Columbia.
All of the samples with sulphide contents greater than 10% are analysed by their
ME-ICP81 (formerly A6 procedure) for Cu, Ni, Co, Fe, S, As, Pb and Zn (0.2 grams
of sample are fused with 2.6 grams of Na2O2 in zirconium crucibles), for Au, Pt
and Pd by fire assay/ICP (PGM-ICP23) and for low-level As, Pb and Ag by nitric
aqua regia digestion/AAS (AA45). All three procedures are ISO 9002 certified.
Results, which exceed the upper limit of the procedures, are redone by an
appropriate assay method for the element and level of concentration.
Samples with sulphide contents of less than 10% are submitted for the ME-ICP61+
PGM-ICP23 procedure. This package is a total acid digestion that assays for Au,
Pt, Pd, Ag, Al, As, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Mo, Na, Ni,
P, Pb, S, Sb, Sr, Ti, V, W and Zn. A prepared sample (0.250 gram) is digested
with perchloric, nitric and hydrofluoric acids. The sample is then further
digested in a small amount of hydrochloric acid. This solution is analyzed by
inductively coupled plasma-atomic emission spectrometry and the results are
corrected for spectral inter element interferences.
Inco Limited, joint venturer with Lonmin Plc, takes no responsibility for nor
makes any representation or warranty of any kind relating to the information
contained in this news release. S. N. Sheard, Inco Limited"s Vice President
Exploration, a Qualified Person for the purposes of NI 43-101 of the Canadian
Securities Administration, has reviewed the technical content of this press
release.
Contact:
Alex Shorland-Ball + 44 (0)20 7 201 6060
Vice President - Investor Relations
Lonmin Plc
Date: 07/03/2006 12:00:11 PM Produced by the JSE SENS Department
