GITENNES? TOTOROKO
COPPER-SILVER-GOLD PROJECT ?
UPDATE
Vancouver,
July 30, 2007;
Gitennes Exploration Inc. (TSX-GIT) is pleased to
report that on-going exploration at the Company?s TotoRoko Property continues to
return highly encouraging results. Highlights include:
-
New zones of
copper, gold and silver mineralization found;
-
Canta?a, a
cross-cutting silver-gold structure, returning up to 1,230 g/t silver and 3.26
g/t gold;
-
Lomas Orjo, a
further extension of the zone of outcropping secondary copper mineralization to
the southeast;
-
Multiple parallel
zones of alteration, mineralization and brecciation found, target width
increases.
Mineralization at
TotoRoko spatially associated with igneous intrusive rocks that occur along
major faults related to the continent-scale Incapuquio
(Peru) ?
West Fissure (Chile)
fault. A 4,500-metre long, northwest-striking panel of strongly magnetic,
metasomatized and altered Jurassic-age Guaneros Formation and younger intrusive
rocks is host to stockwork and disseminated copper-silver-gold mineralization
(oxidized after primary sulphide minerals).These panels are also cut obliquely
by narrower silicified and barite-rich vein-like structures mineralized with
gold and silver (Canta?a). The relationship between the two differing styles of
mineralization is not certain. However it is possible that they are both related
to a highly evolved, concealed porphyry system at depth.
Exploration is
focusing upon the south-eastern 2,200
metres of this mineralized panel where mineralization and alteration is strongest. Here, two
areas of copper-bearing basaltic andesite flows, andesitic tuffs and breccias,
and diorite intrusive rocks are being mapped and sampled. In this area, Cerro
TotoRoko marks a 1,300-metre long by 200-metre wide zone in the northwest, and
Lomas Orjo marks a 700-metre long by 400-metre wide zone to the southeast. Both
zones show signs of strong shearing, argillic alteration, brecciation and strong
fracturing.
New sampling
results (chip-channel and grab) from mineralized outcrops at Lomas Orjo
include:
Length |
Cu % |
Ag g/t |
5
metres |
1.5 |
9 |
18 metres |
0.3 |
5 |
20 metres |
0.2 |
2 |
23 metres |
0.9 |
9 |
10 metres |
0.8 |
14 |
25 metres |
0.7 |
8 |
10 metres |
0.9 |
12 |
7
metres |
2.7 |
25 |
2
metres |
1.9 |
31 |
2
metres |
4.6 |
50 |
10 metres |
3.1 |
33 |
Grab |
2.6 |
21 |
Grab |
1.9 |
18 |
Grab |
6.6 |
52 |
Grab |
2.3 |
26 |
Grab |
1.1 |
10 |
Grab |
1.4 |
14 |
New sampling
results of mineralized outcrops at Cerro TotoRoko include:
Length |
Cu % |
Ag g/t |
5
metres |
3.4 |
32 |
10 metres |
1.2 |
10 |
4
metres |
0.9 |
21 |
Analytical results
for copper and silver are rounded-off.
Gold is anomalous in both areas, with values ranging from ?nil? to 0.4
g/t.
Gitennes has
previously reported other sampling results from the TotoRoko area and from areas
300
metres south of Lomas
Orjo in a news release dated April 16th,
2007.
The area between
Cerro TotoRoko and Lomas Orjo is typically covered by a thick layer of soil and
colluvium. Local outcrops show that it is locally strongly altered and
fractured, but has not been sampled. A silicified structure, Canta?a, was traced
for 900
metres north from this
area. Preliminary samples taken from the northern 400
metres of this feature
returned high silver and anomalous gold values. The quartz-barite vein in this
area is 2 to 3
metres wide and deeply
oxidized.
Length |
Ag g/t |
Au g/t |
Grab |
35 |
3.5 |
2 metres |
177 |
0.1 |
2
metres |
393 |
1.5 |
2
metres |
309 |
0.5 |
3
metres |
1,230 |
1.7 |
2
metres |
992 |
-- |
Exploration
activities continue at TotoRoko with on-going geological mapping and sampling,
and ground geophysical surveys (induced polarization and magnetometer) will
commence at month?s end.
A
geological map, sample plans and photos are available at www.gitennes.com/totoroko.htm.
TotoRoko is a
5,000-hectare property located in the dry coastal mountains of southwest Peru. The
property is truck accessible, and is located in a sparsely settled area at an
elevation of 3,400
metres. Principal
economic activities in the region are mining and farming.
Work at TotoRoko
is supervised by A. Fernandez-Baca (P.Geo). Analytical services are provided by
ALS Chemex
in Lima,
Peru. The
technical information in this release has been reviewed by J. Blackwell (P.Geo),
a Qualified Person as defined by National Instrument
43-101.
For further
information, contact:
Jerry
Blackwell,
President
The
Toronto Stock Exchange has neither approved nor disapproved the information
herein.