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Re: News - Tuesday, August 30, 2011
11-28 - Cornerstone Reports 1.34% Copper and 58.0 g/t Silver over
19.5 m in trenching at La Fortuna Copper-Silver Project, Chile
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Mount Pearl, NL, Canada: Cornerstone Capital Resources Inc.
("Cornerstone") (TSXV-CGP) (F-GWN) (B-GWN) (OTC-CTNXF) announced today
preliminary results for the ongoing exploration program at the La
Fortuna copper-silver project located in the Valpara�so Region of
central Chile, approximately 100 km north of Santiago. A map showing
the location of the La Fortuna project, as well as geology and
exploration results may be viewed at
http://www.cornerstoneresources.com/s/Chile.asp?ReportID=450379.
Highlights
- Seven prospective mineralized zones distributed over a large area (18
km2) identified to date
- Of 163 rock samples collected during mapping and prospecting, 34
(19%) returned > 0.5% Cu, including 24 (14%) which returned > 1.0% Cu;
18 (10%) returned > 30 g/t Ag, including 5 (3%) which returned > 100
g/t Ag
- Trench TH1 returned 19.5 m at 1.34% Cu and 58.0 g/t Ag
- 78% of copper is soluble in samples (49) which returned > 0.5% Cu
- 200 line km ground magnetic survey completed; Induced Polarization
survey planned
- Project located immediately adjacent to the Cerro Negro copper-silver
mine and mill with connecting road infrastructure
Brooke Macdonald, Cornerstone's President commented: "We are very
pleased with the results obtained so far at La Fortuna. In only a few
months our geologists have identified significant mineralized zones
distributed over an extensive area. Ground magnetic and induced
polarization geophysical surveys will help to locate the stratigraphic
horizons where we believe sulfide replacement and manto-type
mineralization occur at depth. There are already some obvious drill
targets, and with further trenching and data integration, new targets
will be developed."
Assay results
Significant copper and silver assay results have been obtained in the
northern two-thirds of the property, with seven prospective mineralized
zones identified over a large area of approximately 18 km�.
Higher-grade mineralization is concentrated in, but not restricted to,
veins that are typically 1 to 2 m wide but occasionally up to 4 m.
Mineralization is also present as disseminations in fracture/shear
zones and at the outer contact zone of intrusive rocks, over
significant widths (up to 19.5 m in trench TH1, see assay results
below). The structural zones are up to 50 m wide, and there is normally
a correlation between Cu and Ag contents.
A total of 163 rock samples (representative chip samples) were assayed
during the prospecting work. Of these, 63 samples returned > 0.1% Cu,
including 34 samples which returned > 0.5% Cu and 24 samples which
returned > 1% Cu. Eighteen (18) samples returned > 30 g/t Ag, including
5 samples which returned > 100 g/t Ag. Eight (8) samples are gold
anomalous (>0.1 g/t Au), including 3 samples which returned > 0.5 g/t
Au.
Including channel samples (160) from the trenching program, forty-nine
(49) samples which returned > 0.5% total copper (1.78% Cu arithmetical
average) were re-assayed for soluble copper (1.43% Cu arithmetical
average). These results indicate that 78% of the copper is soluble.
Exploration program
The La Fortuna property covers an area of approximately 2,900 hectares,
measuring 10 km north-south by 3 km east-west. The project is
favourably located in an established mining district at relatively low
elevations (1200 to 1800 m above sea level), and is easily accessed by
existing roads. The property is partly contiguous with the Cerro Negro
copper (silver) mine, a manto-type deposit immediately to the west
which combines open pit and underground operations and produces copper
cathodes via heap leach SX-EW and copper-silver concentrates via
flotation. The El Bronce epithermal gold-silver district is located 30
km to the north. The region is sparsely populated, and has a hot and
dry climate which is well-suited for leaching operations. Many surface
mineral occurrences have been worked by small scale miners in the past
but no drilling has ever been carried out at La Fortuna.
An exploration program began in April with reconnaissance geological
mapping, prospecting and rock sampling. During this initial work phase,
geological units were defined, a structural study performed, and
altered and mineralized zones were mapped and sampled. Following the
reconnaissance work, data was integrated and prospective areas defined
for follow-up. Detailed mapping and hand-trenching were then initiated
and this work is ongoing. Eleven (11) trenches totaling 532.7 meters
were dug and channel sampled. A total of 427 rock samples (167 rock
chips from prospecting and 260 trench channel samples) have been
collected so far on the project. Assay results are still pending for
the last 105 samples. A ground magnetic survey in excess of 200 line km
was recently completed by consulting firm, Santiago-based, Argali
Geofisica E.I.R.L. in the northern 2/3 portion of the property. This
geophysical data is currently being processed and will be used to
support the geological interpretation and to define the most
prospective areas to carry out an Induced Polarization (I.P.) survey in
the coming months. Further trenching and detailed geological mapping
are planned in areas where anomalous Cu-Ag-Au results have been
obtained thus far.
Trenching
Eleven (11) trenches were dug in the Guayacan (3), Loma Verde (1), Loma
Verde Sur (3), Quebrada Honda (1), Vizcachas (3) and Enjalmao (1) areas
for a total of 532.7 m. Assay results from trenches TH1 to TH7 shown
below in Table 1 indicate that mineralization is not restricted to the
veins and could extend significantly, as disseminations, into the wall
rocks.
Table 1. La Fortuna Trenching Results.
TRENCH ZONE LENGTH (m) # SAMPLES INTERVAL (m)* Cu (%) Ag (g/t)
TH1 LOMA VERDE 19.5 10 19.5 1.34 58.0
TH2 VIZCACHAS 66.0 32 12.0 0.21 13.0
TH3 VIZCACHAS 21.8 10 No significant values
TH4 VIZCACHAS 18.3 9 5.7 0.04
TH5 ENJALMAO 47.0 22 24.0 0.09
TH5B ENJALMAO 9.0 4 No significant values
18.0 0.08
TH6 LOMA VERDE SUR 83.6 42 1.2 0.27
2.2 0.31
TH7 LOMA VERDE SUR 62.8 32 10.8 0.60 17.6
TH8 LOMA VERDE SUR 117.9 58 Assay results pending
TH9 GUAYACAN 41.5 20 Assay results pending
TH10 GUAYACAN 34.8 17 Assay results pending
TH11 GUAYACAN 10.5 5 Assay results pending
* The reported copper and silver intervals are apparent thicknesses due
to the early nature of the exploration program.
The trenching program is ongoing and will be extended to areas where
veins, structures and disseminated mineralization were found during
prospecting work and that have not yet been properly evaluated.
Sampling and assaying
All samples are delivered by Cornerstone employees for preparation at
Acme Analytical Laboratories (ACME) facility in Santiago, Chile. Rock
samples are prepared crushing 1 kg to 80% passing 2 mm (10 mesh),
splitting 250 g and pulverizing to 85% passing 0.075 mm (200 mesh)
(ACME code R200-250). Gold is assayed in Chile, using a 30 g split,
Fire Assay (FA) and AA or ICP-ES finish (ACME code G601).
A 100g-plup is shipped to ACME in Vancouver, Canada where samples are
assayed for a multi-element suite (ACME code 1DX2, 15g split, Aqua
Regia digestion, ICP-ES finish). All samples with results > 100 g/t Ag,
>10,000 ppm Cu, Pb or Zn are systematically and quantitatively
re-assayed (ACME code 7AR, Aqua Regia Digestion, ICP-ES finish). All
samples with results > 5,000 ppm Cu total are systematically re-assayed
to determine leachable copper (ACME code G9, Citric acid leach, Cu, 1
g/100 mL, AAS finish).
Quality assurance / Quality control (QA/QC)
ACME is an ISO 9001:2008 qualified assayer that performs and makes
available internal assaying controls. Certified blanks and standards
are systematically used as part of Cornerstone's QA/QC program. One of
them was inserted every 20 samples at La Fortuna.
Qualified Person
Yvan Crepeau, M.Ba., P.Geo., General Manager of Minera Cornerstone
Chile Limitada (MCCL) and a qualified person in accordance with
National Instrument 43-101, is responsible for supervising the
exploration program at the La Fortuna project and has reviewed and
approved the information contained in this news release.
La Fortuna option agreement
Cornerstone, through its wholly-owned subsidiary, MCCL, has entered
into an agreement with a Chilean individual to acquire the La Fortuna
property. The agreement gives Cornerstone the right to acquire an
undivided 100% interest in the La Fortuna property by incurring
exploration expenditures of C$3.0 million and making cash payments
totalling C$600,000 over a 4-year period. Requirements to maintain the
agreement through the first year include a cash payment of C$100,000
and exploration expenditures of C$500,000. The acquisition is subject
to a 1.5% Net Smelter Royalty ("NSR"), and to advance payments of the
NSR on each anniversary following the date the option is exercised.
Cornerstone has a right of first refusal to purchase the NSR if the
holder decides to sell it.
About Cornerstone
Cornerstone Capital Resources Inc. is a mineral exploration company
based in Mount Pearl, Newfoundland and Labrador, Canada, with a
diversified portfolio of projects in Ecuador, Chile, and Atlantic
Canada, and a strong technical team that has proven its ability to
identify, acquire and advance properties of merit. The company's
business model is based on generating exploration projects whose
subsequent development is funded primarily through joint venture
partnerships. The company is well funded and commitments from JV
partners constitute significant validation of the strength of
Cornerstone's projects. Further information is available on
Cornerstone's website: www.cornerstoneresources.com.
For investor, corporate or media inquiries, please contact:
Investor Relations:
Email: communications@crigold.com
North America toll-free: 1 (877) 277-8377
Martti Kangas - Direct Line: 1 (647) 521-9261
Paul Benwell / Pat Kairns - Direct Line: 1 (514) 904-1333
Investors can access and join the following Cornerstone social media
channels:
Facebook (http://www.facebook.com/cornerstoneresourcesinc)
Twitter (http://twitter.com/Cornerstone_cgp)
YouTube channel (http://www.youtube.com/user/CornerstoneResource)
Flickr (http://www.flickr.com/photos/cornerstoneresources)
The link to a recent Corporate presentation is:
http://www.cornerstoneresources.com/i/pdf/Presentations_0711_CRICorporate.pdf
The link to a virtual tour of drilling at the Gama prospect, Shyri
concession in Ecuador is:
http://www.youtube.com/watch?v=Ne8XSfgLwIM
Cautionary Notice:
This news release may contain 'Forward-Looking Statements' that involve
risks and uncertainties, such as statements of Cornerstone's plans,
objectives, strategies, intentions and expectations. The words
"potential," "anticipate," "forecast," "believe," "estimate," "expect,"
"may," "project," "plan," and similar expressions are intended to be
among the statements that identify 'Forward-Looking Statements.'
Although Cornerstone believes that its expectations reflected in these
'Forward-Looking Statements' are reasonable, such statements may
involve unknown risks, uncertainties and other factors disclosed in our
regulatory filings, viewed on the SEDAR website at www.sedar.com. For
us, uncertainties arise from the behaviour of financial and metals
markets, predicting natural geological phenomena and from numerous
other matters of national, regional, and global scale, including those
of an environmental, climatic, natural, political, economic, business,
competitive, or regulatory nature. These uncertainties may cause our
actual future results to be materially different than those expressed
in our Forward-Looking Statements. Although Cornerstone believes the
facts and information contained in this news release to be as correct
and current as possible, Cornerstone does not warrant or make any
representation as to the accuracy, validity or completeness of any
facts or information contained herein and these statements should not
be relied upon as representing its views subsequent to the date of this
news release. While Cornerstone anticipates that subsequent events
may cause its views to change, it expressly disclaims any obligation to
update the Forward-Looking Statements contained herein except where
outcomes have varied materially from the original statements.
On Behalf of the Board,
Brooke Macdonald
President
Further information is available on the Cornerstone Web site at
www.cornerstoneresources.com; via e-mail at communications@crigold.com;
or toll free at 1-877-277-8377.
Neither TSX Venture Exchange nor its Regulation Services Provider (as
that term is defined in the policies of the TSX Venture Exchange)
accepts responsibility for the adequacy or accuracy of this release.
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Copyright (c) 2011 CORNERSTONE CAPITAL RESOURCES INC. (CGP) All rights
reserved. For more information visit our website at
http://www.cornerstoneresources.com/ or send
mailto:info@cornerstoneresources.com
Message sent on Tue Aug 30, 2011 at 5:15:00 AM Pacific Time
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ProfilIndicateurs de MarchéVALEUR : Projets & res.Communiqués de PresseRapport annuelRISQUE : Profile actifsContactez la cie |
Cornerstone est une société d’exploration minière basée au Canada. Cornerstone est en développement de projets d'uranium au Canada, et détient divers projets d'exploration au Canada, au Chili et en Equateur. Son principal projet en développement est AILLIK au Canada et ses principaux projets en exploration sont CHALEUR, ANAKTALIK, AUCOIN, LABRADOR TROUGH, VOISEY'S BAY PROPERTY, DEER LAKE PROJECT, DORCHESTER, GOSHEN, EL STRATO, LONG LAKE, NOTAKWANON LAKE, TRUE GRIT, CAPE RAY, COLCHESTER, CODROY PROJECT, LONG HARBOUR, OKAK, GARLAND, KAUK, KONRAD, NOEL PAUL'S BROOK, BOBBY'S POND, LITTLE DEER, CONEY ARM et INDIAN ARM au Canada, MACARA, BELLA MARIA, MONTERREY et SIERRAMIN en Equateur et LA FORTUNA CHILE au Chili. Cornerstone est cotée au Canada, aux Etats-Unis D'Amerique et en Allemagne. Sa capitalisation boursière aujourd'hui est 185,0 millions (147,9 millions US$, 139,4 millions €). La valeur de son action a atteint son plus bas niveau récent le 04 mars 2016 à 0,02 , et son plus haut niveau récent le 18 septembre 2020 à 6,53 . Cornerstone possède 47 442 200 actions en circulation. |