|December 03, 2008|
Additional silver-rich intersections expand Trevali's Magistral Central sulphide body on the Santander Silver-Lead-Zinc mine project in Peru
91.4 metres at 10.4 oz (323.3g/t) Silver equivalent
22.2 metres at 10.3 oz (321g/t) Silver equivalent
12.95 metres at 20.7 oz (643g/t) Silver equivalent
Vancouver, British Columbia... Trevali Resources Corp. ("Trevali" or the "Company") (CNSX: TV, Frankfurt: 4TI, Pink Sheets: TREVF) is pleased to announce that diamond drilling continues to successfully expand the recently discovered Magistral Central Zone on its advanced-stage Santander silver-lead-zinc project located in the Cerro de Pasco region of west-central Peru.
Mark Cruise, President and CEO of Trevali, states "It gives me great pleasure on Trevali's first anniversary of exploration to continue to maintain our 100% discovery rate. In the one-year period we have tested three targets and discovered three deposits all of which remain open and appear to be coalescing at depth. This coupled with our excellent metallurgical results continues to add very significant value to this exciting and open ended project. Given the phenomenal exploration potential we are very confident of our ability to continue to expand and develop, at low cost, the rapidly growing resource going forward. The key strategic location of the mine site, the significant infrastructure in place and our own hydro-power station make the Santander project a very desirable asset in this world-class mining district."
Resource drilling has now defined all three newly-discovered Magistral bodies to approximately 200 metres vertical depth and exploration drilling has confirmed the presence of massive sulphide mineralization to 350 metres vertical depth on all three zones, which remain open. Property-scale structural reconstructions indicate the Magistral zones have quite significant additional depth potential -- conservatively interpreted to range from 300-to-500-metres of additional vertical extent. Intercepts from the deep drilling are currently at the assay laboratory and will be released upon receipt.
Additionally, several holes have intersected 'bonanza' grade silver vein mineralization ranging from 5.8 to 19 oz (180 to 594 g/t) silver in a series of largely east-west trending veins that sub-parallel drill direction and thus may be under-represented. Future exploration drilling will seek to test this promising high-grade silver target prior to year end.
Magistral Central is equidistantly located between the Company's silver-rich Magistral Norte Zone and its base-metal-rich Magistral Sur Zone. A total of 100 diamond drill holes (20,613 meters) have been completed to date of which the Company has received assay results from the first 86 holes (latest results in Table 1 -- summaries of all the holes and location maps are available on the Company's website).
The Company commenced exploration at Santander in November 2007 discovering three new high-grade silver-lead-zinc replacement and massive sulphide bodies to date. Elsewhere, out-cropping high-grade silver mineralization with values up to 17.9 oz (558 g/t silver) at Puajanca remains a high--priority drill target for drill testing in early 2009. Finally, geophysical surveying has identified 12 other high-priority anomalies along strike on the same productive trend -- of equal or greater extent to the pre-drilling geophysical response of the three Magistral deposits -- that require testing.
**Exploration to date suggests mineralized zones or mantos are dipping west at approximately 70 degrees; however, it is anticipated that future mapping of an underground exploration adit will allow a more accurate estimation of true thickness.
***Silver equivalent calculated using following metal prices: Ag $15/oz, Pb $0.9/lb, Zn $0.9/lb, Cu $3/lb and assumes 100% recoveries.
The Santander silver-lead-zinc mine project is located approximately 215 km by road from Lima, in the western extent of Peru's prolific Cerro de Pasco mineral district. The mine operated from 1958-1993 targeting a single Carbonate Replacement Deposit-type pipe and manto structure, the Santander Orebody. Approximately 8 million tonnes grading +7% zinc, 1-4% lead and 60 grams/tonne silver plus by-product copper was processed -- initially from open pit operations and then from underground mining reaching a depth of 500 metres below surface in mineralization grading about 11% zinc. Drilling by past operators indicates this mineralization remains open to depth -- extending at least 200 metres further beneath the previous workings.
Substantial site infrastructure at the formerly-producing operation includes a fully refurbished 200-man camp and associated support facilities, an ore processing / concentrator plant (including various crushers, mills, flotation cells and filters able to produce zinc, lead-silver and copper concentrates) currently undergoing a refurbishment program, and the Tingo hydroelectric power-station located approximately 17-km down-valley to the west. The Santander project and the considerable existing infrastructure form a highly strategic asset in this mining district.
Qualified Person and Quality Control/Quality Assurance
EurGeol Dr. Mark D. Cruise, Trevali's President and CEO and a qualified person as defined by National Instrument 43-101, has supervised the preparation of the scientific and technical information that forms the basis for this news release. Dr. Cruise is not independent of the Company, as he is an officer and shareholder.
The work programs at Santander were designed by, and are supervised by, Mark D. Cruise, President & CEO, Trevali, and Les Oldham, General Manager, Consultora Minera Anglo Peruana S.A.(independent geological consultants), who together are responsible for all aspects of the work, including the quality control/quality assurance program. On-site personnel at the project rigorously collect and track samples which are then security sealed and shipped to ACME Laboratories, Vancouver, for assay. ACME's quality system complies with the requirements for the International Standards ISO 9001:2000 and ISO 17025: 1999. Analytical accuracy and precision are monitored by the analysis of reagent blanks, reference material and replicate samples. Quality control is further assured by the use of international and in-house standards. Blind certified reference material is inserted at regular intervals into the sample sequence by Trevali personnel in order to independently assess analytical accuracy. Finally, representative blind duplicate samples are routinely forwarded to ACME and an ISO compliant third party laboratory for additional quality control.
About Trevali Resources Corp.
The Company is currently exploring and conducting various scoping level studies on the former Santander polymetallic mine in Peru to ascertain as best as possible the feasibility of re-commencing mining and milling operations in a timely manner upon successful exploration and engineering studies.
The common shares of the Company are currently listed on the CNSX (symbol TV). For further details on the Company readers are referred to the Company's web site (www.trevaliresources.com) and to Canadian regulatory filings on SEDAR at www.sedar.com.
On Behalf of the Board of Directors of
TREVALI RESOURCES CORP.
"Mark D. Cruise" (signed)
Mark D Cruise, President
Steve Stakiw, Manager -- Corporate Communications
Phone: (604) 488-1661 / Fax: (604) 408-7499
adequacy or accuracy of this release.
You can view the Next News item: Wed Dec 10, 2008, Trevali Receives Transmission Line Permit Upgrades Santander - Tingo Hydroelectric Substation
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