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News

 November 18, 2008
Trevali defines high-grade tailings at Llacsacocha on Santander Silver-Lead-Zinc mine project in Peru

 Values to 8.9 oz (276 g/t) silver, 1.78% lead, 14.49% zinc & 2.6% copper

Highlights include:
  • 8.5 metres at 3 oz/t (94.7 g/t) Ag, 0.6% Pb, 7.57% Zn & 0.19% Cu
  • 8 metres at 2.2 oz/t (68.6 g/t) Ag, 0.48% Pb, 8.37% Zn & 0.23% Cu
Vancouver, British Columbia... Trevali Resources Corp. ("Trevali" or the "Company") (CNSX: TV, Frankfurt: 4TI, Pink Sheets: TREVF) is pleased to announce confirmation of significant high-grade silver-lead-zinc tailings material at Llacsacocha on the advanced-stage Santander mine project in the Cerro de Pasco District of west-central Peru.

Following eleven one-metre deep exploration pits on the Llacsacocha tailings -- averaging 2.3 oz/t (71.5 g/t) silver, 0.46% lead, 4.79% zinc and 0.18% copper (see TRC-NR-08-13 for details) -- the recently completed 19-hole percussion drill program was designed to cost-effectively ascertain whether sufficient material is present to potentially form a low-cost, high-grade feed for planned 2009 mining start-up at the Santander operation. Thirteen of the holes clearly intersected high to very high-grade silver-lead-zinc-copper tailings material from the original Santander open-pit. The Llacsacocha tailings are deposited only 200 metres north of the Mineral Processing Plant (Fig. 1).
strong>Table 1: Summary assay results of Llacsacocha Tailings, Santander Mine.

Borehole Number

Interval

Zinc - %

Lead - %

Silver – oz/t (g/t)

Copper - %

RCL-2

8.5m

3.95%

0.41%

1.9 oz (57.8 g/t)

0.24%

RCL-7

6m

5.37%

0.71%

3oz (92.2 g/t)

0.49%

RCL-8

9.5m

4.04%

0.36%

1.8 oz (55.7 g/t)

0.12%

RCL-12

5.5m

6.43%

0.66%

3oz (94.6 g/t)

0.31%

RCL-13

8.5m

7.57%

0.6%

3oz (94.7 g/t)

0.19%

RCL-14

5m

3.45%

0.41%

1.3oz (42g/t)

0.1%

RCL-15

1.5m

4.34%

0.45%

1.3oz (42 g/t)

0.13%

RCL-17

3m

9.33%

0.73%

3.7oz (115.6 g/t)

0.67%

RCL-18

8m

8.37%

0.48%

2.2oz (68.6 g/t)

0.23%

RCL-19

6m

6.75%

0.37%

1.5oz (47 g/t)

0.14%

RCL-23

4m

8.31%

0.66%

3.45 oz (107 g/t)

0.26%

RCL-24

6m

4.96%

0.48%

1.8 oz (56.7 g/t)

0.18%

RCL-26

1m

8.46%

0.57%

1.6 oz (49.7 g/t )

0.37%

Note holes were numbered on a pre-determined grid, holes RCL 4 to 6, 10, 16 & 25 were not drilled.
Holes RCL-1, 3, 9, 11, 20 to 22 failed to intersect significant tailings material



Figure 1: Satellite Image of Santander Mine Site showing location of the Llacsacocha Tailings material.
Ongoing metallurgical test work is highly positive, producing a 48-51% zinc concentrate with recoveries of 85%. Future test work will address the silver-lead-copper recoveries.

Project Background

The newly discovered Llacsacocha tailings zone is thought to represent some of the earliest tailings material from the original Santander operation, and was not deposited in the primary tailings impoundment where the Company's previous work has occurred.

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 Company commenced exploration at Santander in November 2007 -- and to date has completed 96 diamond drill-holes, discovering three new high-grade silver-lead-zinc replacement and massive sulphide bodies. Most recently, deep drilling has intersected the continuation of all three Magistral bodies to 350 metres vertical depth with mineralization remaining open. Elsewhere, out-cropping high-grade silver mineralization with values up to 17.9 oz (558 g/t silver) at Puajanca is a high--priority drill target.

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 and floatation cell houses) able to produce zinc, lead-silver and copper concentrates that is currently undergoing a refurbishment program, and the Tingo hydroelectric power-station, located some 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 the Llacsacocha samples which were assayed in the Company's on-site laboratory. Analytical accuracy and precision are monitored by Trevali's Senior Geochemist, Tansy O'Connor-Parsons, via 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

Contact Information:
Steve Stakiw, Manager -- Corporate Communications
Email: sstakiw@trevaliresources.com
Phone: (604) 488-1661 / Fax: (604) 408-7499


The CNSX has not reviewed and does not accept responsibility for the
adequacy or accuracy of this release.
 
 

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