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...
Cours Or & Argent
Ivanhoe Australia Drilling Continues to Intersect High-Grade Copper and Gold Mineralisation at the Starra 222 Mine
Published : February 24, 2011

( 0 vote, 0/5 ) Imprimer l'article
  Article Commentaires Commenter Notation Suivre la société  
0
envoyer
0
commenter
Mots clés associés :   Copper |

MELBOURNE, AUSTRALIA--(Marketwire - Feb. 23, 2011) - Robert Friedland, Chairman, and Peter Reeve, Chief Executive Officer of Ivanhoe Australia Limited (TSX:IVA)(News - Market indicators), are pleased to announce that the Starra Line drilling program, on Ivanhoe Australia's Cloncurry tenements in northwestern Queensland, has intersected further high-grade copper-gold mineralisation adjacent to the existing Mineral Resource at the gold-rich Starra 222 ore body.

These drilling results follow on from the recent high-grade results in hole STQ1036 and extend the mineralised zone up-plunge by at least 200 metres. This high-grade mineralised zone in Starra 222, which forms an important part of the Osborne Copper Gold Study plan, has a true thickness of between 5 to 30 metres and a strike-length of at least 250 metres. The mineralised zone is adjacent to the developed Starra 222 decline and is open below the existing drilling results.

STQ1042, the fifth hole drilled by Ivanhoe Australia at Starra 222, intersected the following high-grade gold mineralisation (to see Table 1 and Figures 1-5, Please go to the following link: http://media3.marketwire.com/docs/iva223b.pdf):

STQ1042 – 19.4 metres @ 1.98% copper and 4.27 g/t gold from 384.6 metres,

including 13 metres @ 2.92% copper and 3.9 g/t gold from 390 metres; and 

including 1.4 metres @ 0.06% copper and 21.1 g/t gold from 384.6 metres.

"These high-grade gold results are important because they are expected to lead to a significant increase in the resources contained at Starra 222," Mr Reeve said.

"As the Starra mineralised system is adjacent to the planned Osborne-Merlin haul road and contains similar copper-gold mineralisation to the Osborne Deposit, the resource upgrade will be key to Ivanhoe Australia's strategy of identifying nearby sources of ore for the Osborne mill complex.

"Our ability to economically mine the Starra 222 resources is greatly enhanced by the existing decline. The decline was inspected by Ivanhoe mining engineers in December 2010 who found it to be in good working condition.

"The Starra Line is significantly underexplored, having been subject only to limited shallow drilling. Ivanhoe Australia believes there is strong potential for further discoveries along the line's 52-kilometre length, demonstrated by Barrick's earlier discovery of the Lucky Luke Deposit located on the Starra Line nine kilometres south of the Starra 222 Mine." (See Figure 1).

The results from hole STQ1042, which targeted the along-strike extension of the deposit's most northern mineralisation, indicate that copper-gold mineralisation at Starra 222 remains open 200 metres up-plunge of recent drilling. These mineralised ironstones are located 220 metres north of the base of the Starra 222 decline and 30 to 70 metres north of the existing Starra Mineral Resource (QG, 2008).

The independent JORC-compliant Mineral Resource estimate for Starra 222 utilising a 0.5% eCu cut off, released in 2008 by Quantitative Group (QG), prior to Ivanhoe Australia commencing detailed work along the Starra line, was:

Category MT Cu (kt ) Au (Koz ) Cu % Au g/t
Indicated 7.15 45   217   0.63   0.94
Inferred 5.45 31   123   0.57   0.7
Indicated & Inferred 12.6 76   340   0.6   0.84
 
(1) These mineral resource estimates are reported in accordance with the Australasian Code of reporting of Exploration Results, Mineral Resources and Ore Reserves (the JORC Code). Competent Person: Michael Job, a full time employee of Quantitative Group, an independent consultant. Results of the estimates are the same under CIM Definition Standards.
(2) CuEq is calculated as follows: Cu(%) + Au(g/t) * 0.4.

This 2008 QG resource estimate was not 43-101 compliant as historic data was not reviewed in detail. Ivanhoe Australia's development team is planning further drilling on Starra 222 to test the potential northern extensions of the mineralisation and produce a NI-43 101 compliant Mineral Resource estimate. This drilling program will commence once the current resource definition drilling underway at Starra 276 has been completed.

Mineralisation at Starra 222 is hosted within magnetite ironstones that have been strongly hematite-altered, with gold grades increasing with the degree of hematite alteration. The drilling at 222 has yet to test the full depth of the IOCG system, which is estimated from recent geophysical surveys to be at least two kilometres deep (see Figure 4).

Starra Line history

The Starra Line is a 52-kilometre-long regional structure that is strongly magnetite altered and hosts widespread copper-gold mineralisation. The six-kilometre section of this structure exposed in the Selwyn region hosts five mines that produced approximately 170,000 tonnes of copper and one million ounces of gold from 6.8 million tonnes of ore @ 2.1% copper and 4.6 grams of gold per tone between 1987 and 2002.

Starra 222 is particularly gold-rich and produced 290,000 ounces of gold and 22,000 tonnes of copper from 2.2 million tonnes of ore @ 1.0 % copper and 4.1 grams of gold per tonne. Significant resources remained when mining ceased at Starra 222 in 2002. Ivanhoe commenced drilling at Starra 222 in August 2010.

The remaining 46 kilometres of the Starra Line lie under approximately 5 to 50 metres of cover; approximately 10 kilometres of this strike are north of Starra 276 and the remaining 36 kilometres are south of Starra 222.

Ivanhoe Mines (TSX:IVN)(NYSE:IVN)(NASDAQ:IVN) is Ivanhoe Australia's largest shareholder and currently owns, directly and indirectly, approximately 62% of Ivanhoe Australia's issued and outstanding shares.

Quality Control and Qualified Person Statement

Quality control and assurance programs are implemented in line with the standards of National Instrument 43-101. The exploration program on the Starra 222 Mine is overseen by Paul Carter, BSc(Hons), the General Manager Exploration of the Company and a Qualified Person as defined under National Instrument 43-101. Mr Carter has overseen the exploration program at the Starra 222 mine and supervised the scientific and technical information contained in this news release.

QAQC Statement

Ivanhoe Australia's core sampling within mineralised zones is generally taken on continuous one-metre intervals down each drill hole, or on smaller lengths over narrow geological units, for large disseminated or weakly mineralised zones sample lengths may increase to a maximum of two metres. The core is marked with a continuous cutting line along the middle, parallel to the long axis for the purpose of preventing a sampling bias during splitting. Core is cut with a rock saw flushed continually with fresh water and one-half of NQ/HQ core or one-quarter of PQ core is taken for analysis. Reverse circulation (RC) samples are taken on continuous one- or two-metre intervals down each drill hole and collected from a rig-based cone splitter.

Sample dispatches include Certified Reference Materials (CRMs), Field Blanks, Field Duplicates, Crushed Duplicates, and Pulp Duplicates. The CRMs, Field Duplicates, and Field Blanks are randomly inserted during sampling, whereas the Crushed and Pulp Duplicates are inserted at the laboratory. CRMs are certified for gold, copper, molybdenum, and/or rhenium.

Samples are placed in plastic bags, sealed, and collected in large, labelled shipping bags that are secured and sealed with numbered tamper-proof security tags. Samples are shipped to ALS Laboratory Group's Mineral Division at Mount Isa for preparation. Gold, copper, molybdenum, and rhenium assays, and multi-element geochemical analyses are conducted at ALS Mount Isa, Townsville, and Brisbane laboratories. ALS operates in accordance with ISO/IEC 17025.

Reference material assay values are tabulated and compared to those from established Round Robin programs. Values outside of pre-set tolerance limits are rejected and samples subject to re-assay. A reference material assay fails when the value is beyond the 3SD limit and any two consecutive assays fail when the values are beyond the 2SD limit on the same side of the mean. A Field Blank fails if the assay is over a pre-set limit.

Ivanhoe Australia also performs check assays on a regular basis at an independent third party laboratory. Ivanhoe Mines Ltd regularly conducts onsite reviews, internal audits, and laboratory audits to ensure procedural compliance for maintaining industry standard best practices.

Competent Persons Statement

The information in this announcement that relates to Ivanhoe Australia's mineral resource estimates for the Starra 222, is based on information compiled by Mike Job, who is a full time employee of Quantitative Group and a Member of the Australasian Institute of Mining and Metallurgy. Mike Job has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a 'Competent Person' as defined in the JORC code. Mike Job consents to the inclusion in the announcement of the matters based on this information in the form and context in which it appears.

Forward-looking statements

Certain statements made herein, including statements relating to matters that are not historical facts and statements of our beliefs, intentions and expectations about developments, results and events which will or may occur in the future, constitute "forward-looking information" within the meaning of applicable Canadian securities legislation and "forward-looking statements" within the meaning of the "safe harbor" provisions of the United States Private Securities Litigation Reform Act of 1995. Forward-looking information and statements are typically identified by words such as "anticipate", "could", "should", "expect", "seek", "may", "intend", "likely", "plan", "estimate", "will", "believe" and similar expressions suggesting future outcomes or statements regarding an outlook. These include, but are not limited to the Company's expectations that the grade across the mineralised zone is uniform and that mineralisation is consistent between holes STQ1036 and STQ1042 and the Company's intentions to undertake further exploration drilling at Starra 222 in an attempt to extend this high grade zone both along strike and to depth.

All such forward-looking information and statements are based on certain assumptions and analyses made by Ivanhoe Australia's management in light of their experience and perception of historical trends, current conditions and expected future developments, as well as other factors management believes are appropriate in the circumstances. These statements, however, are subject to a variety of risks and uncertainties and other factors that could cause actual events or results to differ materially from those projected in the forward-looking information or statements. The reader is cautioned not to place undue reliance on forward-looking information or statements.

For more information, please contact

Ivanhoe Australia Limited
Peter Reeve
Managing Director & CEO
61 3 9090 8802
peterr@ivancorp.net
www.ivanhoeaustralia.com

Ivanhoe Australia Limited

EXPLORATEUR
CODE : IVA.AX
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

Ivanhoe Australia est une société d’exploration minière de cuivre et d'or basée en Australie.

Ivanhoe Australia est en développement de projets de cuivre, d'or, de molybdène et de rhenium en Australie.

Son principal projet en développement est MERLIN en Australie et son principal projet en exploration est CLONCURRY/ SWAN - MT ELLIOT en Australie.

Ivanhoe Australia est cotée en Australie. Sa capitalisation boursière aujourd'hui est 90,0 millions AU$ (82,1 millions US$, 60,5 millions €).

La valeur de son action a atteint son plus haut niveau récent le 04 décembre 2009 à 4,24 AU$, et son plus bas niveau récent le 07 juin 2013 à 0,10 AU$.

Ivanhoe Australia possède 418 410 103 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
 
Nominations de Ivanhoe Australia Limited
27/05/2013Chief Executive Officer's Address
15/01/2013Announces Company Secretary Appointment
28/06/2011Appoints Jim Askew as an Independent Non-Executive Director
Rapports Financiers de Ivanhoe Australia Limited
29/07/2011Quarterly and Cash Flow Report for the Three Months Ending 3...
02/05/2011Quarterly and Cash Flow Report for the Three Months Ending 3...
02/05/2011's Quarterly and Cash Flow Report for the Three Months Endin...
Projets de Ivanhoe Australia Limited
24/02/2011(Cloncurry/ Swan - Mt Elliot)Drilling Continues to Intersect High-Grade Copper and Gold M...
08/12/2008High-Grade Molybdenum and Rhenium Discovery Confirmed by Iva...
Communiqués de Presse de Ivanhoe Australia Limited
24/10/2013Inova Resources Limited: Shanxi Donghui Conditional Takeover...
17/10/2013Inova Resources Limited: Shanxi Donghui Receives Chinese NDR...
06/10/2013Inova Resources Limited: Shanxi Donghui Conditional Takeover...
27/09/2013Inova Releases Target's Statement
19/09/2013Inova Resources Limited: Updated Starra 276 Mineral Resource...
13/09/2013Inova Resources Limited: Shanxi Donghui Dispatches Bidder's ...
05/09/2013Inova Resources Limited: Positive Initial Gold Results from ...
30/08/2013Inova Resources Limited: Shanxi Donghui Lodges Bidder's Stat...
21/08/2013Inova Resources Limited: Intended Takeover Offer
31/07/2013Inova Resources Quarterly Report for the Three Months Ending...
09/07/2013Market Update on Inova Resources' Exploration and Drilling P...
17/06/2013Name Changed to Inova Resources Limited
22/05/2013Proposed Company Name Change to Inova Resources Limited
23/04/2013Appoints Highly Experienced Geologist, Mark McGeough, as Gen...
11/04/2013Response to Media Article
19/03/2013Production Successfully Commenced at Starra 276 Underground ...
11/02/2013Revised Share Trading Policy
29/01/2013Pro-Rata Entitlement Issue Shortfall Placement
07/01/2013CORRECTION FROM SOURCE: Ivanhoe Australia Announces New Mana...
31/10/2012Quarterly Report for the Three Months Ending 30 September 20...
19/09/2012Upgrade to Mineral Resource; Over 60% Increase in Contained ...
31/08/2012Sale of Exco Limited Shares
23/08/2012Sale of Exco Resources Limited Shares
16/08/2012Strategic & Business Review Complete
30/07/2012Secures US$50 Million Working Capital Facility
26/06/2012First Phase of Strategic and Business Review
15/06/2012First Shipment of Concentrate From the Osborne Copper-Gold P...
08/06/2012Change of CEO
30/04/2012Significant Drilling Results at Ivanhoe Australia's Kulthor ...
12/04/2012Announces Board Changes
08/03/2012Achieves Producer Status
31/01/2012Accesses Very High Grade Little Wizard Molybdenum & Rhenium ...
19/01/2012Significant High-Grade Copper-Gold Intercepts in Resource De...
12/01/2012Receives $30.1 Million Distribution From Exco Resources' Ass...
28/10/2011Osborne Copper Gold Project on Track to Advance Ivanhoe Aust...
13/10/2011Completes Acquisition of 80% Interest in Exco Joint Venture ...
05/10/2011Foreign Investment Review Board Approval for Ivanhoe Mines t...
16/09/2011to Raise Up to A$150 Million Net Proceeds
20/04/2011Clarifies its Position on Exco Resources Limited's Market Re...
30/10/2009Quarterly Report to 30 September 2009
Publication de commentaires terminée
 
Dernier commentaire publié pour cet article
Soyez le premier à donner votre avis
Ajouter votre commentaire
AUSTRALIA (IVA.AX)
0,215+0.00%
AUSTRALIA
AU$ 0,215
27/11 13:56 -
0%
Cours préc. Ouverture
0,215 0,215
Bas haut
0,215 0,215
Année b/h Var. YTD
 -  -
52 sem. b/h var. 52 sem.
- -  0,215 -%
Volume var. 1 mois
147 600 -%
24hGold TrendPower© : 18
Produit
Développe
Recherche Copper - Gold
 
 
 
Analyse
Interactive chart Add to compare
Graphique
interactif
Imprimer Comparer Exporter
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$-8,00%Trend Power :
Santos(Ngas-Oil)STO.AX
announces expected non-cash impairment
7,09 AU$+0,57%Trend Power :
OceanaGold(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 +4,55%Trend Power :
Stornoway Diamond(Gems-Au-Ur)SWY.TO
Second Quarter Results
0,02 CA$+100,00%Trend Power :
McEwen Mining(Cu-Le-Zn)MUX
TO ACQUIRE BLACK FOX FROM PRIMERO=C2=A0
9,16 US$+2,81%Trend Power :
Rentech(Coal-Ngas)RTK
Rentech Announces Results for Second Quarter 2017
0,20 US$-12,28%Trend Power :
KEFIKEFI.L
Reduced Funding Requirement
0,60 GBX+1,18%Trend Power :
Lupaka Gold Corp.LPK.V
Lupaka Gold Receives First Tranche Under Amended Invicta Financing Agreement
0,05 CA$+10,00%Trend Power :
Imperial(Ag-Au-Cu)III.TO
Closes Bridge Loan Financing
2,10 CA$+1,94%Trend Power :
Guyana Goldfields(Cu-Zn-Pa)GUY.TO
Reports Second Quarter 2017 Results and Maintains Production Guidance
1,84 CA$+0,00%Trend Power :
Lundin Mining(Ag-Au-Cu)LUN.TO
d Share Capital and Voting Rights for Lundin Mining
13,38 +5,60%Trend Power :
Canarc Res.(Au)CCM.TO
Canarc Reports High Grade Gold in Surface Rock Samples at Fondaway Canyon, Nevada
0,34 +0,00%Trend Power :
Havilah(Cu-Le-Zn)HAV.AX
Q A April 2017 Quarterly Report
0,18 AU$+0,00%Trend Power :
Uranium Res.(Ur)URRE
Commences Lithium Exploration Drilling at the Columbus Basin Project
6,80 US$-2,86%Trend Power :
Platinum Group Metals(Au-Cu-Gems)PTM.TO
Platinum Group Metals Ltd. Operational and Strategic Process ...
1,85 +4,52%Trend Power :
Devon Energy(Ngas-Oil)DVN
Announces $340 Million of Non-Core Asset Sales
40,97 US$+1,49%Trend Power :
Precision Drilling(Oil)PD-UN.TO
Announces 2017Second Quarter Financial Results
8,66 CA$-0,35%Trend Power :
Terramin(Ag-Au-Cu)TZN.AX
2nd Quarter Report
0,04 AU$+0,00%Trend Power :
Profitez de la hausse des actions aurifères
  • Inscrivez-vous à notre market briefing minier
    hebdomadaire
  • Recevez nos rapports sur les sociétés qui nous semblent
    présenter les meilleurs potentiels
  • Abonnement GRATUIT, aucune sollicitation
  • Offre limitée, inscrivez-vous maintenant !
Accédez directement au site.