TSX: TV    /    Last: $1.47    /    Change: +0.09    /    Volume: 1982593

News

 October 15, 2008
Trevali identifies new silver-rich tailings on its Santander Silver-Lead-Zinc mine project in Peru

 Samples average 2.3 oz/t (71.5 g/t) silver and 4.8% zinc

Vancouver, British Columbia... Trevali Resources Corp. ("Trevali" or the "Company") (CNQ: TV, Frankfurt: 4TI, Pink Sheets: TREVF) is pleased to announce the discovery of additional high-grade tailings material on its advanced Santander silver-lead-zinc development project located in the Cerro de Pasco District of west-central Peru. The newly discovered Llacsacocha tailings zone is thought to represent some of the earliest tailings material from the original Santander operation, deposited approximately 200 metres to the north of the Mineral Processing Plant and not in the primary tailings impoundment where the Company's previous work has occurred.

The average of all eleven one-metre deep pits collected to date is 2.3 oz/t (71.5 g/t) silver, 0.46% lead, 4.79% zinc and 0.18% copper (n=11) (Table 1).

Table 1: Summary assay results Llacascocha Tailings, Santander Mine.

Sample-Type*

Ag equivalent**

Ag oz/tonne (g/t)

Pb %

Zn %

Cu %

210

10 oz/t (312 g/t)

1.74 oz/t (54.1 g/t)

0.29

5.52

0.14

211

18.2 oz/t (566 g/t)

4.3 oz/t (135 g/t)

0.67

8.91

0.27

203

9.6 oz/t (300 g/t)

 2.1 oz/t (65.6 g/t)

0.47

4.56

0.20

204

13.2 oz/t (410g/t)

3.9 oz/t (121.6 g/t)

0.8

5.21

0.3

205

12.7 oz/t (396 g/t)

3.3 oz/t (102 g/t)

0.54

5.80

0.24

206

7.7 oz/t (241 g/t)

1.1 oz/t (35.1 g/t)

0.25

4.32

0.13

207

6.4 oz/t (201 g/t)

1.5 oz/t (47.9 g/t)

0.56

2.73

0.13

208

8.5 oz/t (264 g/t)

1.6 oz/t (51.3 g/t)

0.32

4.48

0.11

209

9.7 oz/t (302 g/t)

1.7 oz/t (51.9 g/t)

0.32

5.38

0.12

210

5.4 oz/t (168 g/t)

1.6 oz/t (49.4 g/t)

0.39

1.90

0.18

211

8.2 oz/t (255 g/t)

1.9 oz/t (60.3 g/t)

0.5

3.86

0.11



*One-metre deep pits
**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.


Initial on-site metallurgical test work is highly positive, producing a 48-51% zinc concentrate with recoveries of 80%. Future test work will address the silver-lead-copper recoveries.

In light of these positive developments that Company has commenced a nominal 27-hole percussion drill program in order to better define this potentially significant tailings resource. Contingent upon on-going positive results the Llacsacocha tailings could potentially form a very significant high-grade feed for tailings mining start-up at the Santander operation.

Project Background

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..

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 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.

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 Llacascocha samples which were assayed in the Companies 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 cost and feasibility of re-commencing mining and milling operations in a timely manner should exploration prove to be successful.

The common shares of the Company are currently listed on the CNQ (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 CNQ has not reviewed and does not accept responsibility for the
adequacy or accuracy of this release.
 
 

You can view the Next News item: Tue Nov 18, 2008, Trevali defines high-grade tailings at Llacsacocha on Santander Silver-Lead-Zinc mine project in Peru

You can view the Previous News item: Tue Sep 23, 2008, Trevali Confirms High-Grade Mineralization at Puajanca Prospect on Santander Silver-Lead-Zinc Mine Project in Peru

You can return to the main News page, or press the Back button on your browser.

RSS