October 30,
2007
Includes 0.6%
Cu and 0.013% Mo over 90
metres
Vancouver, BC - Los Andes Copper Ltd. ("Los Andes", or the
"Company", TSX Venture Exchange: LA) announces results from the
remaining nine holes of the phase I drilling program at the Vizcachitas Project in Chile. A total of 5,165.3 metres
were drilled in 18 holes during the program. The phase one program
successfully confirmed the historical drilling carried out in the 1990s and
extended the known mineralization to the south, east and west (See news
releases dated August 23 and October 2, 2007).
Eight of the nine holes
encountered significant mineralization including Hole LAV-73, the
easternmost hole drilled on Section 1200NE, that intersected 0.43%
Cu and 0.012% Mo (0.51% CuEq.*) over 235.45 metres,
including a higher grade interval of 0.78% Cu and 0.011% Mo (0.86% CuEq.) between 32 and 62 metres. Highlights
from the remaining holes are listed in the table below. Drill hole location maps and sections can be viewed at the Los
Andes website www.losandescopper.com .
Hole ID
|
Total
Depth (m)
|
Inclination
|
Azimuth
|
From (m)
|
To
(m)
|
Interval (m)
|
CuT (%)
|
Mo
(%)
|
CuEq %*
|
LAV-71
|
250
|
-70
|
293
|
64.1
|
250
|
185.9
|
0.28
|
0.016
|
0.39
|
including
|
|
|
|
64.1
|
172
|
107.9
|
0.33
|
0.014
|
0.42
|
including
|
|
|
|
64.1
|
98
|
33.9
|
0.40
|
0.012
|
0.48
|
|
|
|
|
|
|
|
|
|
|
LAV-73
|
250
|
-70
|
293
|
14.55
|
250
|
235.45
|
0.43
|
0.012
|
0.51
|
including
|
|
|
|
14.55
|
94
|
79.45
|
0.59
|
0.013
|
0.67
|
including
|
|
|
|
32
|
62
|
30
|
0.78
|
0.011
|
0.86
|
|
|
|
|
|
|
|
|
|
|
LAV-74
|
369.3
|
-70
|
293
|
39
|
369.3
|
330.3
|
0.37
|
0.016
|
0.48
|
including
|
|
|
|
39
|
174
|
135
|
0.41
|
0.010
|
0.48
|
|
|
|
|
|
|
|
|
|
|
LAV-76B
|
250
|
-70
|
293
|
50
|
250
|
200
|
0.11
|
0.001
|
0.12
|
|
|
|
|
|
|
|
|
|
|
LAV-77
|
350
|
-80
|
293
|
3
|
350
|
347
|
0.38
|
0.008
|
NA
|
including
|
|
|
|
40
|
350
|
310
|
0.41
|
0.008
|
NA
|
including
|
|
|
|
40
|
110
|
70
|
0.50
|
0.013
|
0.59
|
|
|
|
|
|
|
|
|
|
|
LAV-78
|
300
|
-70
|
293
|
27
|
300
|
273
|
0.42
|
0.009
|
NA
|
including
|
|
|
|
32
|
62
|
30
|
0.58
|
0.010
|
0.65
|
and
|
|
|
|
102
|
182
|
80
|
0.55
|
0.010
|
0.62
|
including
|
|
|
|
134
|
180
|
46
|
0.70
|
0.013
|
0.78
|
|
|
|
|
|
|
|
|
|
|
LAV-79
|
250
|
-70
|
293
|
46
|
250
|
204
|
0.35
|
0.010
|
0.41
|
including
|
|
|
|
66
|
196
|
130
|
0.42
|
0.010
|
0.49
|
including
|
|
|
|
104
|
156
|
52
|
0.50
|
0.012
|
0.58
|
|
|
|
|
|
|
|
|
|
|
LAV-80
|
250
|
-70
|
293
|
64
|
250
|
186
|
0.36
|
0.010
|
0.43
|
including
|
|
|
|
66
|
148
|
82
|
0.53
|
0.014
|
0.62
|
including
|
|
|
|
80
|
120
|
40
|
0.72
|
0.014
|
0.82
|
|
|
|
|
|
|
|
|
|
|
LAV-81
|
386
|
-70
|
113
|
61.5
|
386
|
324.5
|
0.45
|
0.011
|
0.53
|
including
|
|
|
|
82
|
260
|
178
|
0.57
|
0.012
|
0.65
|
including
|
|
|
|
170
|
260
|
90
|
0.60
|
0.013
|
0.69
|
(*Copper
equivalent is calculated for Mo values greater than 0.01% using US$1.50/lb
Cu and US$10.00/lb Mo according to the formula CuEq%
=Cu% + (Mo% x 10.00/1.50) and is not adjusted for metallurgical recoveries
or net smelter return which remain uncertain and are assumed to be 100%).
Roger Moss, President
and CEO of Los Andes commented as follows: "The Phase I drilling
campaign has achieved the aims of verifying past drilling at Vizcachitas, and extending the extent of the known
mineralization. The deposit remains open to the southwest, west, east and
north as well as at depth."
Discussion of
Results
LAV-71 tested the
southern limit of the mineralization outlined by the historical drilling,
and was drilled at an inclination of -70 to the northwest. The hole intersected quartz sericite
altered granodiorite and porphyritic
andesite below overburden to a depth of 144 metres, followed
by biotite alterated andesite and granodiorite to
the end of the hole.
LAV-76B was a stepout hole drilled 200 metres to the
southwest of LAV-71 at an inclination of -70 to the northwest. The hole
intersected diorite and andesite porphyry with
weak biotite alteration overprinted by sericite alteration.
LAV-73, the easternmost
hole drilled on section 1200NE, intersected quartz-sericite
and locally biotite altered porphyritic
andesite below overburden to the end of the hole.
Weakly developed copper oxide mineralization was observed near surface.
LAV-74 is an infill
hole drilled on Section 1500NE. It intersected biotite
and quartz-sericite altered andesite
below 39 metres
of overburden to a depth of 179.6 metres, followed by tonalite with well developed quartz-sericite
alteration overprinting earlier biotite
alteration. Andesite, with weaker biotite and quartz-sericite
alteration, was intersected again from 306 metres to the
end of the hole at 369.3
metres.
LAV-77 is an infill
hole drilled on section 1100NE. It intersected weak to moderate biotite altered porhyritic andesite over the length of the hole below 3m of talus.
LAV-78 was drilled
approximately 200
metres northeast of LAV-77 and intersected
alternating granodiorite and porphyrytic
andesite with two breccia
intervals. The first interval, between 98 and 198.2 metres,
contains chlorite altered andesite and granodiorite fragments in a sulphide
(pyrite-chalcopyrite with minor chalcocite)
matrix. This interval gave the highest grade of 0.70% Cu and 0.013%
Mo from 134 to 180
metres that included shorter intervals of 0.79%
Cu and 0.006% Mo between 136 and 148 metres, and 0.95% Cu and 0.017% Mo
between 158 and 176
metres. The second interval, between 210.2
and 221.25 metres
is composed dominantly of granodiorite fragments
in a sulphide matrix.
LAV-79 was collared 200 metres northwest
of LAV-73 along section 1200NE and intersected biotite
and quartz-sericte altered granodiorite
below the overburden from 43.5 to 99.2 metres. Biotite altered andesite with
minor granodiorite was intersected between 99.2
and 233.8 metres,
followed by weakly altered granodiorite to the
end of the hole.
LAV-80 was collared 233
metres southeast of LAV-71 and tested the southern
extent of mineralization on section 900NE. The hole intersected an interval
of biotite altered porphyritic
andesite, intruded by monzonite
from 67.3 metres
to 158.6 metres,
followed by quartz sericite altered granodiorite to the end of the hole intruded by monzodiorite between 241 and 248 metres.
LAV-81, the final hole
of the program, is an infill hole drilled to fill a gap immediately east of
the Rocin
River. The hole
intersected weakly altered granodiorite and porphyritic andesite below 61 metres of
overburden to 114
metres. A biotite altered
intrusive breccia, containing mainly andesite fragments, was intersected between114 and 259.5 metres. This
breccia assayed 0.60% Cu and 0.013% Mo
over 90 metres
between 170 and 260
metres. The hole ended at 268.35 metres in silicified andesite.
Roger Moss, Ph.D., P.Geo,
is the qualified person as defined by National Instrument 43-101 for the Vizcachitas Project. Logging, sampling and splitting of
the drill core is conducted at the Vizcachitas
site by independent consultants Geologica LTDA.
under the direct supervision of geologist Ramon Fam.
Samples are securely transported by Geologica
staff to the SGS Laboratory in Santiago Chile and
analyzed for copper and molybdenum by atomic absorption following a three
acid digestion. Los Andes routinely inserts standards and blanks into the
sample stream and sends 5% of sample rejects to Actlabs
for check analysis.
About Vizcachitas
The Vizcachitas
Project offers potential for a low strip, open pit operation in an area of
low elevation with excellent infrastructure, including water and power in
central Chile.
The Vizcachitas deposit occurs in the same metallogenic belt as the large copper-molybdenum
porphyries Rio Blanco-Los Bronces, Los Pelambres-El Pachon and El Teniente. Based on 68 drill holes previously completed
by General Minerals Corporation and Placer Dome, the project contains an
indicated resource of 232 million tonnes grading 0.46% copper and 0.014%
molybdenum and an inferred resource of 619 million tonnes grading 0.38%
copper and 0.013% molybdenum at a 0.30% copper cutoff.
At a 0.4% cutoff, indicated resources total 144
million tonnes grading 0.52% copper and 0.015% molybdenum and inferred
resources total 211 million tonnes grading 0.46% copper and 0.016%
molybdenum as detailed in the NI43-101 compliant technical report of A.C.A.
Howe International Limited dated February 7, 2007. The
technical report, as well as additional information about the Vizcachitas Project is available on our website at www.losandescopper.com .
For more information
please contact:
Michael Kuta, Corporate Secretary
Tel: 604-697-6201 or
Roger Moss, President Tel:
416-516-6050
E-Mail: info@losandescopper.com
Or visit our website at: www.losandescopper.com
This document contains certain forward
looking statements which involve known and unknown risks, delays and
uncertainties not under the Company's control which may cause actual
results, performance or achievements of the Company to be materially
different from the results, performance or expectation implied by these
forward looking statements.
The TSX Venture Exchange has not reviewed
and does not accept responsibility for the
adequacy or accuracy of this release.
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