Fermer X Les cookies sont necessaires au bon fonctionnement de 24hGold.com. En poursuivant votre navigation sur notre site, vous acceptez leur utilisation.
Pour en savoir plus sur les cookies...
AnglaisFrancais
Cours Or & Argent en
Gryphon Gold Corporation: Updated NI 43-101 Pre-Feasibility Filed for Borealis Oxide Heap Leach in Nevada
Published : April 26, 2011
( 0 vote, 0/5 ) Imprimer l'article
  Article Commentaires Commenter Notation Suivre la société  
0
envoyer
0
commenter

CARSON CITY, NEVADA--(Marketwire - April 26, 2011) - Gryphon Gold Corporation (News - Market indicators)(OTCBB:GYPH) (the "Company") announces that a copy of the NI 43-101 Pre-Feasibility Study update of the Mineral Resources of the Borealis Gold Project located in Mineral County, Nevada, USA as at April 25, 2011 (the "2011 Study") has been filed on the SEDAR website, www.sedar.com.

The NI 43-101 compliant study, completed by Telesto Nevada Inc., examined the proposed oxide heap leach open pit operation at the Company's wholly owned Borealis Project located in the Walker Lane Gold Belt of western Nevada.

"Gryphon's long-term plan for the Borealis property has always been to advance the oxide heap leach to generate the cash flow required to fully explore one of the premier exploration targets in Nevada. The 2011 Study reflects a more conservative view of the near-term production than the 2009 Pre-Feasibility Study. This Pre-Feasibility Study illustrates that the project has a $99.7 million gross profit over the initial mine life at $1,200 gold. Our intent is to aggressively advance the exploration to achieve additional oxide heap leach reserves while moving to fully explore the potential to increase the sulphide gold resources in the Central Borealis and begin to aggressively explore the geophysical targets in the Western Pediments," said John L. Key, President and CEO of Gryphon Gold.

The principal changes reported in the 2011 Study compared to the "Pre-Feasibility Study of the Mineral Resources of the Borealis Gold Project located in Mineral County, Nevada, USA, Revised and Restated as at September 17, 2009" (the "2009 Pre-Feasibility Study") and the "NI 43-101 Technical Report on the Mineral Resources of the Borealis gold Project located in Mineral county, Nevada, USA dated April 28, 2008" (the "2008 Technical Report") are:

  • An increase in the number of measured and indicated oxide and mixed oxide in-situ gold (an increase of 227,500 oz) and silver (an increase of 1,459,800 oz) resources.
     
  • An increase in the Proven and Probable oxide and mixed oxide gold (an increase of 21,200 oz) and silver (an increase of 287,320 oz) ounces coming from the heaps and dumps.
     
  • A decrease in the aggregate Proven and Probable oxide and mixed oxide contained gold (a decrease of 8,556 oz) and silver (a decrease of 1,023,700 oz) reserves.
     
  • A decrease in the average grade of oxide and mixed oxide resources and reserves for both gold and silver.
     
  • An increase in cash operating costs.
     
  • The phasing of the construction costs into two stages, with estimated initial project costs of $12.7 million and total estimated project costs of $23.0 million.
     
  • An increase in the gold price used to determine the reserves from $800 to $1,200 per oz of gold.

The current Resources for the Borealis are illustrated in the following table.

April 2011 Pre-Feasibility Update Resource Summary(2)
      Contained
Oxide and Mixed Oxide (In-Situ) Tons Au Grade Au Oz
  Measured(1) 29,031,000 0.014 401,900
  Indicated 5,388,000 0.017 89,300
  Total 34,419,000 0.014 491,200
 
      Contained
Sulfide (In-Situ) Tons Au Grade Au Oz
  Measured 6,173,000 0.047 287,800
  Indicated 19,893,000 0.053 1,051,900
  Total 26,066,000 0.051 1,339,700
 
      Contained
Legacy Heaps and Dumps Tons Au Grade Au Oz
  Indicated 3,640,000 0.021 75,800
  1. The proven and probable Gold Reserves are included in the Measured and Indicated Oxide and Mixed Oxide Resources listed in this resource table.
  2. See Cautionary note to U.S. investors concerning estimates of Reserves and Resources below.

The Proven and Probable reserves of 368,800 ounces of gold gives the Borealis Oxide Heap Leach a six-year mine life producing an annual average of 42,100 gold equivalent ounces. Highlights are as follows:

  • Average annual production of over 42,000 oz gold equivalent.
  • Low initial construction cost of $12.7 million using a 10% contingency.
  • Average cash operating cost of $851 per oz of gold over the life of the mine.
  • After-tax Net Present Value, at 10%, of US $18.9 million, IRR of 118% and a payback of 14 months based on US$1,200 per ounce price of gold.

No inferred resources were included in the economics of this study. The inferred oxide resources (totaling 408,200 oz gold) represent potential to extend the mine life beyond the six-year plan examined in the Pre-Feasibility Study, if such inferred resources are confirmed as reserves as a result of additional exploration work. Future exploration will also provide opportunities for further resource expansion as the Borealis Property covers approximately 23.5 square miles of favorable Nevada geology.

John Welsh P.E., Jon Brown, CPG, Doug Willis, CPG, Dr. Thom Seal P.E., and Daniel Kappes, "qualified persons" as defined in National Instrument 43-101 of the Canadian Securities Administrators ("NI 43-101"), have assumed responsibility of their respective sections/subsections of the technical information relating to the Borealis Property referred to in this press release.

This press release contains "forward-looking statements" and "forward-looking information" within the meaning of Canadian and United States securities laws, which may include, but is not limited to, statements with respect to estimates of mineral reserves and resources, the Company's long term plan for the Borealis property, projected gross profit over the initial mine life, anticipated exploration at the Borealis property, estimated average annual production, estimated construction and operating costs, estimated After-Tax Net- Present Value, IRR, and payback period . Such forward-looking statements and forward-looking information reflect our current views with respect to future events and are subject to certain risks, uncertainties and assumptions, including, risks related to mineral reserves and resource estimates, risks and uncertainties related to construction timing and costs, risks related to production costs, risks related to fluctuations in supplies and equipment, risk related to our ability to obtain adequate financing, risks related to fluctuating gold prices, risks related to the inherently hazardous nature of mining –related activities, and the risks and uncertainties outlined under the section headings "Forward-Looking Statements" and "Risks Factors" in our annual report on Form 10-K, as filed with the SEC and Canadian securities regulatory authorities on June 28, 2010, under the section heading "Risk Factors" in our most recent quarterly report on Form 10-Q, as filed with the SEC and Canadian securities regulatory authorities on February 11, 2011, and in our most recent financial statements, reports and registration statements filed with the SEC (available at www.sec.gov) and with Canadian securities regulatory authorities (available at www.sedar.com). We do not undertake to update forward-looking statements or forward-looking information, except as may be required by law.

The Borealis property is described in the technical report (the "2011 Pre-Feasibility Study") titled "43-101 Pre Feasibility Study update of the Mineral Resources of the Borealis Gold Project Located in Mineral County, Nevada, U.S.A." as at April 25, 2011 prepared in accordance with National Instrument 43-101 of the Canadian Securities Administrators ("NI 43-101"). The 2011 Pre-Feasibility Study describes the exploration history, geology and style of gold mineralization at the Borealis property. Disclosure in this press release of mineral resources is based on the technical report. Details of the quality or grade of each category of mineral resources and key assumptions, parameters and methods used to estimate the mineral resources is included in the 2011 Pre Feasibility Study. The 2011 Pre-Feasibility Study also includes a description of environmental and permitting matters.

Cautionary Note to U.S. Investors concerning estimates of Reserves and Resources: This press release and the Pre-Feasibility Study referred to in this press release use the term "Proven and Probable Reserves" and "Mineral Reserves". We advise U.S. investors that while these terms are Canadian mining terms as defined in accordance with Canadian National Instrument 43-101 ("NI 43-101") – Standards of Disclosure for Mineral Projects and the Canadian Institute of Mining, Metallurgy and Petroleum ("CIM") – CIM Definition Standards on Mineral Resources and Mineral Reserves, adopted by the CIM Council, as amended, such definitions differ from the definitions in U.S. Securities and Exchange Commission ("SEC") Industry Guide 7. Under SEC Industry Guide 7 standards, a "final" or "bankable" feasibility study is required to report reserves, the three-year historical average price is used in any reserve or cash flow analysis to designate reserves and the primary environmental analysis or report must be filed with the appropriate governmental authority. U.S. investors are cautioned not to assume that any part or all of mineral deposits in this category will ever be converted into SEC Industry Guide 7 reserves. This press release, the Pre-Feasibility Study, the 2009 Pre-Feasibility Study and the 2008 Technical Report referred to in this press release also use the terms "Measured Resources", "Indicated Resources", "Measured & Indicated Resources" and "Inferred Resources." We advise U.S. investors that while these terms are defined in and required by Canadian regulations, these terms are not defined terms under SEC Industry Guide 7 and are normally not permitted to be used in reports and registration statements filed with the SEC. "Inferred Resources" have a great amount of uncertainty as to their existence, and great uncertainty as to their economic and legal feasibility. It cannot be assumed that all or any part of an inferred mineral resource will ever be upgraded to a higher category. Under Canadian rules, estimates of inferred mineral resources may not form the basis of a feasibility study or pre-feasibility study, except in rare cases. The SEC normally only permits issuers to report mineralization that does not constitute SEC Industry Guide 7 compliant "reserves" as in-place tonnage and grade without reference to unit measures. U.S. investors are cautioned not to assume that any part or all of mineral deposits in these categories will ever be converted into Guide 7 reserves.



Gryphon Gold Corporation
John L. Key
CEO
775 883 1456
jkey@gryphongold.com
or
Gryphon Gold Corporation
Lisanna Lewis
Vice President, Treasurer
604 261 2229
llewis@gryphongold.com

Gryphon Gold Corp.

EXPLORATEUR
CODE : GGN.TO
Suivi et investissement
Add to watch list Add to your portfolio Add or edit a note
Ajouter une alerte Ajouter aux Watchlists Ajouter au portefeuille Ajouter une note
ProfilIndicateurs
de Marché
VALEUR :
Projets & res.
Communiqués
de Presse
Rapport
annuel
RISQUE :
Profile actifs
Contactez la cie

Gryphon Gold est une société développant des projet miniers d'or basée au Canada.

Gryphon Gold détient divers projets d'exploration en USA.

Ses principaux projets en exploration sont BOREALIS, COLD SPRINGS, ASHBY, GOLD POINT, ANCHOR, CUMBERLAND, TWIN BUTTES, RUBY, GOLD REEF, STATELINE, SOUTHERN BELLE, BLACK MOUNTAIN, WATER CANYON, REGENT, BAXTER SPRINGS, BLACKROCK, ARGENTITE, FLORENCE CANYON, HORSETHIEF, SCRAPER SPRINGS, ACE, FRI GOLD, COLUMBIA, BRIK, DALE, 4 ACES, BUCKSKIN NORTH, STAR CITY et ROCK CREEK en USA.

Gryphon Gold est cotée au Canada et aux Etats-Unis D'Amerique. Sa capitalisation boursière aujourd'hui est 1,9 millions CA$ (1,9 millions US$, 1,4 millions €).

La valeur de son action a atteint son plus haut niveau récent le 29 décembre 2006 à 2,35 CA$, et son plus bas niveau récent le 26 juin 2013 à 0,01 CA$.

Gryphon Gold possède 194 644 000 actions en circulation.

Votre avis nous interesse, merci de laisser un commentaire ou de noter cet article.
Evaluer : Note moyenne :0 (0 vote) Voir les mieux notés
 
Financements de Gryphon Gold Corp.
20/03/2012Announces $1,500,000 Bridge Loan Facility, as the First Stag...
25/05/2011Announces US$382,500 Over-Allotment Option Exercise
18/05/2011Announces Closing of US$10,000,000 Equity Financing
13/05/2011Announces Terms of $10,000,000 Equity Financing
07/02/2011Announces Filing of Registration Statement and Preliminary S...
21/01/2011Closes C$1.3M Private Placement
29/11/2007Closes Second Tranche of C$5.44M Private Placement
23/11/2007 Closes First Tranche of C$5.44M Private Placement
15/11/2007 Announces Increase in Size of Private Placement
07/08/2007Closes C$4.0 Million Private Placement
Nominations de Gryphon Gold Corp.
30/07/2012Announces Resignation of Chief Financial Officer
03/02/2012Announces Management Changes; Appoints James T. O'Neil Jr. a...
03/01/2012Appoints James T. O'Neil Jr. as CFO
22/07/2008Appoints Mining Engineer John Key as CEO & Director
Rapports Financiers de Gryphon Gold Corp.
15/08/2011Announces Financial Results for 1st Quarter Ended June 30, 2...
11/02/2011Announces Financial Results for 3rd Quarter Ended December 3...
14/08/2008 Announces Financial Results for 1st Quarter Ended June 30, ...
27/06/2008Reports Annual Financial Results for March 31, 2008
12/02/2008Announces Financial Results for December 31, 2007
14/11/2007 Announces Financial Results for September 30, 2007
Projets de Gryphon Gold Corp.
26/06/2012Provides Production Update
01/05/2012Provides Production Update for April 2012
03/04/2012Successfully Completes First Test Production Pour at ADR Pla...
14/10/2011Begins Production, Ships Loaded Carbon
24/08/2011(Borealis)s Progress on Borealis Mine Development
02/08/2011(Borealis)s Progress on Borealis Mine Development
09/06/2011(Borealis)Begins Construction of Borealis Heap Leach Project
26/04/2011(Borealis)Updated NI 43-101 Pre-Feasibility Filed for Borealis Oxide H...
03/03/2011(Borealis)to Issue Updated Pre-Feasibility Study and Clarifies Mineral...
22/02/2011(Borealis)Announces Extends Option to Fix NSR Royalty
04/06/2009(Borealis)Pre-Feasibility Study for Gryphon Gold's Borealis Oxide Reso
10/03/2009(Argentite)Signs Letter of Intent on Argentite Property, Nevada
09/01/2008Summary of the Borealis Exploration Program
18/01/2007(Borealis)Gold Resource Model Update
Communiqués de Presse de Gryphon Gold Corp.
13/02/2013to Discuss Joint Venture Agreement with Waterton on Third Qu...
31/01/2013Announces Joint Venture With Waterton Global Value L.P.
15/01/2013(Ace)Announces Installation of Replacement ADR Refining Facility ...
07/01/2013Provides Operational Update
31/10/2012Announces Second Quarter Fiscal Year 2013 Financial Results ...
15/10/2012Provides Operational Update
25/09/2012and Waterton Agree to Increase Senior Secured Credit Facilit...
28/08/2012Announces Filing of Supplement to Proxy Statement
14/08/2012Reports $5.9 Million in Revenue in the First Quarter Fiscal ...
05/07/2012Mourns the Loss of Director
18/06/2012Announces Fiscal Year End 2012 Financial Results Conference ...
29/05/2012Sets Record Date and Meeting Date For Annual General Meeting
19/04/2012Secures $15,000,000 Senior Secured Credit Facility with Wate...
24/02/2012(Borealis)Provides Third Quarter Fiscal 2012 Financial Results and an ...
18/02/2012Announces Third Quarter FY2012 Financial Results Conference ...
05/12/2011Reports Gold Sales
24/10/2011Continues Loaded Carbon Shipments
08/09/2011(Ace)Announces Heap Placement at Borealis Mine
27/07/2011(Ace)Closes $3 million Private Placement of Units
14/03/2011States That Its Policy Is Not to Comment on Unusual Market A...
13/07/2009 signs lease with Newmont
12/06/2009Annual Meeting
07/01/2009Employs Cash Conservation While Continuing Plans for Mine Co...
03/09/2008Preliminary Assessment Supports Initial 46,000 ozs/yr Gold P...
22/08/2008Signs Option to Cap Borealis Royalty
05/08/2008Signs Option to Restructure its $5 Million Debt
16/07/2008Retains AGORACOM
22/05/2008Enters Option Agreement with Silver Reserve Corp.
29/04/20082008 Resource Model Update
27/03/2008Report New Resource Calculation End of April 2008
05/03/2008Reports that Blackrock Project, Nevada is to be Drilled by N...
28/02/2008and American Bonanza Terminate Merger Negotiations
20/02/2008Assessment of Proposed Merger with American Bonanza
12/02/2008Announces Planned Merger With American Bonanza
05/02/2008Smartstox Spotlights Gryphon Gold Corporation
05/02/2008Announces New COO ? Mining Engineer John L. Key
25/01/2008DRILLING UNDERWAY IN 2008 AT RED ROCK PROPERTY
18/01/2008OUTLINES PLANS FOR PROPERTIES HELD BY NEVADA EAGLE RESOURCES
07/11/2007Provides Drill Program Update
02/11/2007CSAMT Geophysical Survey Improves Drill Targeting
23/10/2007 Announces Agreement With Agnex Exploration For Regent Gold-...
15/10/2007 ANNOUNCES AN AMENDMENT TO LEASE WITH AuEx VENTURES INC. TO ...
15/10/2007Announces an Amendment to Lease With AuEx Ventures Inc. to A...
08/09/2007Reports on Annual General Meeting : Continues to increase ou...
23/08/2007Reports 174 meter (570 ft.) gold mineralized zone
22/08/2007Closes Nevada Properties Acquisition
06/07/2007acquires Nevada Eagle Resources LLC
27/06/2007reports on exploration progress
Publication de commentaires terminée
 
Dernier commentaire publié pour cet article
Soyez le premier à donner votre avis
Ajouter votre commentaire
TORONTO (GGN.TO)OTC BB (GYPH.OB)
0,010+0.00%0,008-11.11%
TORONTO
CA$ 0,010
27/06 15:40 -
0%
Cours préc. Ouverture
0,010 0,010
Bas haut
0,005 0,010
Année b/h Var. YTD
 -  -
52 sem. b/h var. 52 sem.
- -  0,010 -%
Volume var. 1 mois
236 700 -%
24hGold TrendPower© : -44
Produit
Développe
Recherche Gold - Silver - Zinc
 
 
 
Analyse
Interactive chart Add to compare
Graphique
interactif
Imprimer Comparer Exporter
Dernière mise à jour le : 04/12/2010
Vous devez être connecté pour accéder au portefeuille (gratuit)
Top Newsreleases
LES PLUS LUS
Variation annuelle
DateVariationMaxiMini
 
Graphique 5 ans
 
Graphique 3 mois
 
Graphique volume 3 mois
 
 
Nouvelles des Sociétés Minières
Plymouth Minerals LTDPLH.AX
Plymouth Minerals Intersects Further High Grade Potash in Drilling at Banio Potash Project - Plannin
0,12 AU$-8,00%Trend Power :
Santos(Ngas-Oil)STO.AX
announces expected non-cash impairment
7,70 AU$-0,65%Trend Power :
Oceana Gold(Au)OGC.AX
RELEASES NEW TECHNICAL REPORT FOR THE HAILE GOLD MINE
2,20 AU$+0,00%Trend Power :
Western Areas NL(Au-Ni-Pl)WSA.AX
Advance Notice - Full Year Results Conference Call
3,86 AU$+0,00%Trend Power :
Canadian Zinc(Ag-Au-Cu)CZN.TO
Reports Financial Results for Q2 and Provides Project Updates
0,12 CA$+4,55%Trend Power :
Stornoway Diamond(Gems-Au-Ur)SWY.TO
Second Quarter Results
0,02 CA$+100,00%Trend Power :
McEwen Mining(Cu-Le-Zn)MUX
TO ACQUIRE BLACK FOX FROM PRIMERO=C2=A0
12,26 US$+2,68%Trend Power :
Rentech(Coal-Ngas)RTK
Rentech Announces Results for Second Quarter 2017
0,20 US$-12,28%Trend Power :
KEFIKEFI.L
Reduced Funding Requirement
0,53 GBX-1,87%Trend Power :
Lupaka Gold Corp.LPK.V
Lupaka Gold Receives First Tranche Under Amended Invicta Financing Agreement
0,06 CA$+0,00%Trend Power :
Imperial(Ag-Au-Cu)III.TO
Closes Bridge Loan Financing
2,64 CA$-1,86%Trend Power :
Guyana Goldfields(Cu-Zn-Pa)GUY.TO
Reports Second Quarter 2017 Results and Maintains Production Guidance
1,84 CA$+0,00%Trend Power :
Lundin Mining(Ag-Au-Cu)LUN.TO
d Share Capital and Voting Rights for Lundin Mining
16,23 CA$+4,04%Trend Power :
Canarc Res.(Au)CCM.TO
Canarc Reports High Grade Gold in Surface Rock Samples at Fondaway Canyon, Nevada
0,24 CA$+4,26%Trend Power :
Havilah(Cu-Le-Zn)HAV.AX
Q A April 2017 Quarterly Report
0,20 AU$+2,63%Trend Power :
Uranium Res.(Ur)URRE
Commences Lithium Exploration Drilling at the Columbus Basin Project
6,80 US$-2,86%Trend Power :
Platinum Group Metals(Au-Cu-Gems)PTM.TO
Platinum Group Metals Ltd. Operational and Strategic Process ...
1,88 CA$+0,53%Trend Power :
Devon Energy(Ngas-Oil)DVN
Announces $340 Million of Non-Core Asset Sales
52,71 US$+0,19%Trend Power :
Precision Drilling(Oil)PD-UN.TO
Announces 2017Second Quarter Financial Results
8,66 CA$-0,35%Trend Power :
Terramin(Ag-Au-Cu)TZN.AX
2nd Quarter Report
0,04 AU$+5,56%Trend Power :