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Cours Or & Argent

Rio Alto Mining Limited

Publié le 12 mai 2008

Discovers New High Grade Veins

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May 12, 2008

Mexican Silver Mines Discovers New High Grade Veins
at its La Blanca Property


 

Mexican Silver Mines Ltd. ("Mexican Silver") (TSXV: MSM; Frankfurt WKN: A0MSLE) has received the assay results from three drill holes at its La Blanca property which have identified a new silver-lead-zinc rich vein.

Mineralization at La Blanca is hosted in a system of veins.  Sulphides consist of multiphase galena bands with fine to medium grained argentite and sphalerite, with calcite, quartz and pyrite as gangue minerals, hosted in calcareous rocks of the Upson Formation.

Previous work by Mexican Silver consisted of trenches on surface in the area which returned grades of between 897 g/t and 4,110 g/t silver and values of 59 to 83% lead.  Please refer to Mexican Silver's news release dated May 30, 2007 for additional details regarding this work.

Three drill holes tested the mineralized area for 500 metres in length, with positive results.  All three drill holes cut mineralization.  Material assay results are shown in the following tables.

Sample
#

Drill Hole
#

From
m.

To
m.

Interval
m.

Ag
g/ton

Pb
%

Zn
%

 ADF 2301

AF-01

27.54

28.42

0.93

1.4

0.037

0.04

 ADF 2302

AF-01

28.42

29.02

0.60

13.7

0.99

3.07

 ADF 2303

AF-01

29.02

29.35

0.33

0.9

0.037

0.02

 ADF 2304

AF-01

29.35

29.85

0.5

0.9

0.037

0.007

 

Sample
#

Drill Hole
#

From
m.

To
m.

Interval
m.

Ag
g/ton

Pb
%

Zn
%

 ADF 2305

AF-02

24

24.8

0.8

1.3

0.01

0.017

 ADF 2306

AF-02

24.8

25.36

0.56

66.1

3.97

1.77

 ADF 2307

AF-02

25.36

26.36

1.0

0.9

0.04

0.03

 

Sample
#

Drill Hole
#

From
m.

To
m.

Interval
m.

Ag
g/ton

Pb
%

Zn
%

 ADF 2308

AF-03

10.5

11.5

1.0

3

0.18

0.039

 ADF 2309

AF-03

11.5

11.9

0.40

506

4.82

17.45

 ADF 2310

AF-03

11.9

13.02

1.12

2.1

0.08

0.092

 ADF 2311

AF-03

13.02

13.9

0.88

4.2

0.06

0.08


These drill results have defined veins which average 0.5 metres in width with attractive mineralization grades and are believed to be part of a system hosting high grade mineralization encountered in prior trench testing.

Mexican Silver will extend the trenching program to test 1500 metres of strike along the vein system with concurrent systematic sampling and geological mapping.  A second phase of drilling is intended to be undertaken at La Blanca with the goal of delimiting the mineralization both laterally and to depth.

All drill core samples were shipped to ALS Chemex Laboratory ("Chemex") for analyses. Chemex has an International Standard Organization rating of ISO 9001:2000 and is independent of Mexican Silver. The split drill core sample was crushed and a sub-sample (aliquot) split off, pulverized and screened through a 150 mesh screen. Analyses were preformed using standard acid digestion and spectrographic techniques.

Mexican Silver follows a rigorous Quality Assurance/Quality Control program consisting of inserting standards and duplicates into the sample stream submitted to Chemex for analyses.

Mr. William Dynes, P. Geol., the project supervisor of Mexican Silver's drilling program at La Blanca, is Mexican Silver's nominated Qualified Person and is responsible for the quality assurance and quality control of the programs completed at La Blanca. Mr. Dynes has reviewed and verified the technical information contained in this news release.


About Mexican Silver Mines
Mexican Silver Mines is a silver focused junior resource company developing three former silver producing properties in north-eastern Mexico. To learn more about Mexican Silver Mines, please visit:
www.mexicansilvermines.com.

 

ON BEHALF OF THE BOARD OF
MEXICAN SILVER MINES LTD.

___________________________________

Feisal Somji, B.Sc., MBA
President and Chief Executive Officer

FOR FURTHER INFORMATION, CONTACT:

Mexican Silver Mines Ltd.
Feisal Somji, President & CEO
Phone:  403.236.5089
Fax:      403.398.0693
Email: info@mexicansilvermines.com
Web:  www.mexicansilvermines.com

Investor Relations
Jamie Mathers, Ascenta Capital Partners Inc.
Phone: 604.684.4743 ext. 236
Phone: 866.684.4209
Email:jamie@ascentacapital.com


Thisnews release contains forward-looking information including but notlimited to comments regarding the timing and content of upcoming workprograms, geological interpretations and potential mineral recoveryprocesses. Forward-looking information includes disclosure regardingpossible future events, conditions or results of operations that isbased on assumptions about future economic conditions and courses ofaction, and therefore, involves inherent risks and uncertainties. Whenused in this news release. The words "estimated", "inferred", "plan","anticipated", "expected", "intend", "believe", and similar expressionsare intended to identify forward-looking statements. These statementsinvolve known and unknown risks, uncertainties and other factors thatmay cause the actual results, performance or achievements of MexicanSilver to be materially different from any future results, performanceor achievement expressed or implied by such forward-looking statements.For any forward-looking information given, management has assumed thatthe analytical results it has received are reliable, and has appliedgeological interpretation methodologies which are consistent withindustry standards. Although management has a reasonable basis for theconclusions drawn, there can be no assurance that forward-lookingstatements will prove to be accurate and actual results may differmaterially from those currently anticipated in such statements. Forsuch statements, we claim safe harbour.

The TSX Venture Exchange has not reviewed and does not accept responsibility for the adequacy and accuracy of this information.

 

This email was sent by: Ascenta Capital Partners Inc.
Suite 1610, 1066 West Hastings Street, Vancouver, BC, V6E 3X1 Canada

Rio Alto Mining Limited

EN DÉVELOPPEMENT
CODE : RIO.TO
ISIN : CA76689T1049
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Rio Alto est une société développant des projet miniers de cuivre et d'or basée au Canada.

Rio Alto est en développement de projets de cuivre, d'or et d'argent au Perou, et détient divers projets d'exploration au Mexique.

Son principal projet en développement est LA ARENA au Perou et ses principaux projets en exploration sont ANILLO DE FUEGO, PROVIDENCIA, RAL ( LA IGUANA ), VALLECILLO, MAMULIQUE et LA BLANCA au Mexique.

Rio Alto est cotée au Canada. Sa capitalisation boursière aujourd'hui est 107,3 millions CA$ (798,5 millions US$, 719,9 millions €).

La valeur de son action a atteint son plus bas niveau récent le 26 décembre 2008 à 0,07 CA$, et son plus haut niveau récent le 23 février 2012 à 4,54 CA$.

Rio Alto possède 175 886 000 actions en circulation.

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Dans les médias de Rio Alto Mining Limited
31/01/2008Follow up N° 2
Rapports annuels de Rio Alto Mining Limited
2007 annual report
2007 Q1 report
2006 Q3 report
2006 annual report
Financements de Rio Alto Mining Limited
30/11/2010Completes First Tranche of Private Placement for C$12.8 Mill...
07/01/2009Extends Expiry Date of Outstanding Warrants
23/12/2008Proposes to Extend Expiry Date of Outstanding Warrants
Attributions d'options de Rio Alto Mining Limited
23/07/2009Name Change to Rio Alto Mining Limited and Grant of Stock Op...
25/05/2009Announces Grant of Stock Options
Nominations de Rio Alto Mining Limited
14/03/2011Announces Appointment of Victor Gobitz and Sidney Robinson t...
18/02/2011Announces the Departure of Feisal Somji
17/06/2008Appoints Jose Sayo Garcia as VP Exploration and Brings Addit...
Projets de Rio Alto Mining Limited
29/04/2011(La Arena)Drills 173 Metres of 1.53 Grams of Gold Per Tonne
09/02/2011(La Arena)Announces Acquisition of 100% of La Arena Project
05/08/2009(La Arena)La Arena Surface Rights and Project Update
29/06/2009(La Arena)Confirms Option Agreement on La Arena and Equity Position in...
07/07/2008(Mamulique)Commences First Phase Drilling at the Mamulique Project
04/06/2008(Ral ( La Iguana ))Reports Extension of Mantos in the First Phase of Drilling a...
12/05/2008(La Blanca)Discovers New High Grade Veins
25/03/2008(Vallecillo)Initiates IP Geophysics at Vallecillo
19/02/2008(Mamulique) Announces Positive Exploration Results and Drill Plan for t...
30/01/2008(Ral ( La Iguana ))Announces an Exploration Update on its Iguana Project
23/01/2008(Vallecillo)Reports further drill results from the Vallecillo drill prog...
Communiqués de Presse de Rio Alto Mining Limited
01/04/2015Tahoe Resources and Rio Alto Mining Announce Completion of M...
30/03/2015Announces Shareholder and Court Approval of the Plan of Arra...
16/03/2015Announces Net Income of US$49.8 Million for 2014
20/07/2011Drills 238 Metres of 1.06 Grams of Gold Per Tonne
15/06/2011Drills 134 Metres of 2.29 Grams of Gold Per Tonne
09/05/2011(La Arena)Pours 1,115 Oz of Gold at La Arena
30/06/2009Completes Acquisition of Rio Alto Mining Limited
22/06/2009Enters Definitive Agreement to Acquire Rio Alto Mining Limit...
10/03/2009Enters into Letter of Intent to Acquire Rio Alto Mining Limi...
25/02/2009at 2009 Prospectors & Developers Association of Canada Confe...
19/12/2008Featured on Business Television
19/11/2008Provides a Corporate Update and Initiates Review of Strategi...
23/04/2008 Grants and Re-Prices Options
08/04/2008 Announces the Addition of Jim Glass to Board of Directors
29/02/20082007 Q3 Report
28/01/2008Announces Exploration Results from the Magnolia Mine Area wi...
05/12/2007 Announces Positive Drill Assay Results From Vallecillo and ...
30/11/20072007 Q2 report
19/11/2007 Acquires the Voladora Mine in the State of Nuevo Leon
31/10/2007Increases Drill Program at Vallecillo
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