Golden Cross Resources

Published : March 04th, 2015

Copper Hill Update

( 0 vote, 0/5 ) Print article
  Article Comments Comment this article Rating Follow Company  
0
Send
0
comment

Copper Hill Update

Golden Cross Resources Ltd, through its wholly owned subsidiaries Golden Cross Operations Pty Ltd (GCO) and Challenger Gold Li

GOLDEN CROSS RESOURCES LTD

ABN 65 063 075 178

ASX Announcement

5 March 2015

Copper Hill Update

22 Edgeworth David Ave

Hornsby NSW 2077

Phone (02) 9472 3500

Fax (02) 9482 8488

Revised geological model leading to upgraded resource on schedule

Enhanced metallurgical recoveries for higher grade ore

Revised capital and operating costs being developed

Significant exploration potential identified

Golden Cross Resources Limited (ASX:GCR) is pleased to announce that the management team has completed the geological review of the Copper Hill copper-gold project and the revised resource estimate and Scoping Study for the project are progressing on schedule. The resource estimate by independent consultant James Ridley is well advanced with the results to be released in mid-March while the Scoping Study based on a 2 - 3Mtpa operation is planned to be completed by mid-April.

Geological Review and Resource Estimate

As reported on 30 January recent detailed geological and structural analysis has improved the understanding of a number of controls on the mineralisation at Copper Hill. These include;

A strong grid NW structural orientation which controls the bulk of the low to medium grade (0.2 - 0.3% Cu) mineralisation outside the high grade zones

Grid north - south high grade zones which were mined in the past

A weaker, but still material grid NE trending set of structures, also hosting historical workings

A higher grade core to the mineralisation focussed in the areas of greatest structural intensity, especially at the intersection of N-S and NW trending structures. The main Copper Hill zone extends over a strike length of at least 400 metres and widths of

100 - 200 metres and to depths of up to 300 metres. It is outlined by the 0.3% Cu outline or wireframe (see Figure 1). In addition, steeply plunging "pipe-like" high grade zones are present at Buckley's Hill and south of Copper Hill. The plunge of these zones is consistent with the intersection of the N-S and NW structures.

Higher gold to copper ratios within the core of the high grade zone with Au:Cu generally around 3:1 (ie; 3g/t Au : 1% Cu) compared with a ratio of 1:1 for the deposit overall.

A sub-horizontal 10 - 20 metres thick zone of supergene enrichment centred in the transitional weathering zone 25 - 70 metres below surface.

The combination of these factors has led to an enhanced geological model for the deposit and greater continuity than previously recognised for the higher grade zones. The recognition of preferred structural orientations for the mineralisation enabled drill intercepts which were previously considered "outliers" or "spotty highs" to be incorporated within relatively continuous grid N-S or NW higher grade zones. This in turn provides improved definition of the higher grade mineralisation which is the focus of this resource estimate and the Scoping Study.

1

Copper Hill high grade zone

Figure 1: View of the Copper Hill 0.3% Cu wire frame (red) and enriched zone (blue) looking NNW.

For further technical information the reader is referred to previous announcements and Attachment 1 of this announcement which contains drill sections through the Copper Hill deposit. These sections provide the 0.1% Cu and 0.3% Cu outlines which define the mineralised envelope and higher grade mineralisation respectively, the major eastern and western bounding structures and drill hole intercepts above 0.2% Cu and 0.4% Cu. They confirm the clear continuity of the higher grade mineralisation at Copper Hill and include the high grade intercepts from the 2014 drilling program along with selected results from previous drilling. All drilling intercepts have been previously announced.
While the absolute impact of this improved geological interpolation of drilling results will not be known until the resource model is complete, the geological team expect it to result in an increased metal content within the high grade (>0.4% Cu) resource and a reduction in the tonnes of lower grade (

Mining, Metallurgy and Scoping Study

The project team has been further strengthened with the appointment of Andrew Napier, an experienced process engineer with extensive project management, commissioning and operations experience as Study Manager.
The mining studies have commenced and key inputs for the optimisation from previous studies have been reviewed. The material reduction of oil prices and softening of the resources industry overall in the services and contracting markets particularly is expected to deliver reduced mining costs from the study. These improved costs reflect current mining costs and practices.

2
The mining work program will provide an overall optimised pit along with a higher grade stage one pit which will be a key input to the Scoping Study based on a 2 - 3Mtpa operation focused on mining and processing the shallow higher grade mineralisation at Copper Hill.
A review of the extensive previous metallurgical test work has identified upside opportunities for the project. The key improvement is higher metal recoveries for the higher grade ore.
The vast majority of metallurgical test work has concentrated on assessing copper and gold recoveries from the average grade of the bulk resource (grading around 0.3% Cu and
0.3g/t Au) as the focus was on a large (8Mtpa) operation. As expected, the test work on this lower grade mineralisation provided modest metal recoveries on average and some variable results. Accordingly, previous studies have used copper recoveries of 70% - 80% and gold recoveries of 40% - 45%, well below published for comparable NSW copper-gold operations.
Metallurgical tests on higher grade mineralisation (around 0.5% Cu) using the current process plant design including a target 75 micron grind size have delivered results of 80%
- 90% copper recoveries and 70% - 80% gold recoveries. These samples lie within the current 0.3% Cu wireframe which outlines the higher grade mineralisation and hence the metallurgical results are regarded as reasonably representative of this higher grade proposed plant feed for a 2 - 3Mtpa operation.
As metal recoveries flow directly to project revenue and margin it is anticipated these revised recovery parameters will significantly improve the financial results for an operation based on extracting the better performing, higher grade mineralisation.
Due to weaker resource industry conditions and hence more competitive equipment and service prices the project team is currently assessing the merits and costs of a revised capital cost for the project against a factored estimate based on recent previous studies.
As part of the Scoping Study operating costs will be revisited to ensure they reflect current market conditions and prices, notably the lower A$/US$ exchange rate and lower oil price.

Exploration Potential

The favourable geological setting of Copper Hill combined with the large size of the mineralised system have long been recognised by the GCR team.
The Ordovician Macquarie Arc consists of four volcanic belts which host world-class porphyry copper-gold deposits being mined at Cadia (Newcrest), Northparkes (China Molybdenum) and Cowal (Barrack).
One of these belts, the Molong Volcanic Belt, hosts significant porphyry gold-copper deposits such as Cadia, Cadia East, Ridgeway (all part of Newcrest's Cadia operations), Cargo (GCR), Yeoval and Copper Hill (GCR), and intrusive-related skarn gold + copper deposits such as Browns Creek and Junction Reefs, within the corridor formed by the WNW trending Lachlan Transverse Zone. Accordingly, GCR's tenements within this strongly mineralised area are regarded as highly prospective for copper - gold deposits in particular.
The recent Copper Hill geological review, assisted by internationally-renown consultancy Corbett Menzies Cunliffe, has added further to the potential of the Copper Hill mineralising system. A number of features logged in the 2014 drilling, including mineral forms and associations combined with multi-element geochemical data, indicate we may be yet to intercept the postulated main mineralising porphyry. This interpreted system is most likely at depth or along strike from the currently outlined mineralised system and represents a compelling exploration target.

3
While the company is currently focused on the Scoping Study it is intended to assess the best options to obtain vectors to target any future exploration activities and drilling. It should be emphasized this remains a conceptual target at this time, albeit outlined by recognised mineralisation trends from international studies of porphyry deposits.

Copper Hill

Figure 2: Geology and mineralisation of Parkes - Orange Region

Ken Hellsten
Interim CEO

Further information, contact Ken Hellsten on (02) 9472 3500

Compliance Statement. The information in this report that relates to Exploration Results is based on information compiled by Mr. Kenneth Hellsten, who is a Fellow of the Australian Institute of Mining and Metallurgy (AusIMM). Mr Hellsten is an employee of Golden Cross Resources Limited, and has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity he is undertaking to qualify as a Competent Person as defined in the 2004 Edition of the "Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves". Mr. Hellsten consents to the inclusion in the report of the matters based on this information in the form and context in which it appears.


4

Attachment 1

Drill sections from Copper Hill High Grade Zone Sections 5300N to 5600N.

Figure 3: Drill Section 5300N with mineralised envelopes and drill result summary

Figure 4: Drill Section 5400N with mineralised envelopes and drill result summary


5

Figure 5: Drill Section 5450N with mineralised envelopes and drill result summary

Figure 6: Drill Section 5500N with mineralised envelopes and drill result summary


6

Figure 7: Drill Section 5600N with mineralised envelopes and drill result summary


7

Read the rest of the article at www.noodls.com
Data and Statistics for these countries : China | All
Gold and Silver Prices for these countries : China | All

Golden Cross Resources

DEVELOPMENT STAGE
CODE : GCR.AX
ISIN : AU000000GCR0
Follow and Invest
Add to watch list Add to your portfolio Add or edit a note
Add Alert Add to Watchlists Add to Portfolio Add Note
ProfileMarket
Indicators
VALUE :
Projects & res.
Press
releases
Annual
report
RISK :
Asset profile
Contact Cpy

Golden Cross Res. is a gold exploration company based in Australia.

Golden Cross Res. develops gold, copper, silver and zinc in Australia, and holds various exploration projects in Australia.

Its main assets in development are COPPER HILL and KEMPFIELD in Australia and its main exploration properties are WAGGA TANK, MOUNT ISA (QUEENSLAND), BOWEN, BURRA PROPERTY, WEST WYALONG, YELLOW MOUNTAIN, CULLARIN, MULGA TANK, CARGO, SUNNY CORNER, SOUTH GILMORE (DOBROYDE), BREADALBANE and CANBELEGO/ PIPELINE in Australia and NUIKLAVIK and NOTAKWANON in Canada.

Golden Cross Res. is listed in Australia. Its market capitalisation is AU$ 203 220 as of today (US$ 132 064, € 123 361).

Its stock quote reached its highest recent level on February 28, 1997 at AU$ 8.88, and its lowest recent point on April 24, 2024 at AU$ 0.00.

Golden Cross Res. has 101 610 000 shares outstanding.

Your feedback is appreciated, please leave a comment or rate this article.
Rate : Average note :0 (0 vote) View Top rated
 
Corporate news of Golden Cross Resources
8/2/2016Resignation of Director
7/29/2016Quarterly Cashflow Report
7/28/2016GCR Elects To Become 100% Owner of Isa Phosphate Tenements
7/14/2016Results of Meeting
6/8/2016Notice of Extraordinary General Meeting/Proxy Form
6/1/2016Update on GCR's Current Financial Position
5/27/2016Update on GCR's Current Financial Position
5/25/2016Trading Halt
5/12/2016Extraordinary General Meeting
5/2/2016Quarterly Activities and Cashflow Report
1/31/2016Change in substantial holding
1/29/2016December 2015 Quarterly Activities Report and Cashflow Repor...
1/29/2016Change in substantial holding
1/28/2016Change in substantial holding
1/27/2016Change in substantial holding
1/25/2016Supplementary Target Statement
1/25/2016Change in substantial holding
1/25/2016Appendix 3B
12/27/2015Independent Experts Report
12/27/2015Independent Review Statement
12/22/2015Appointment of Chairman
12/22/2015Appendix 3Z
12/20/2015Results of Annual General Meeting
12/18/2015Trading Halt
12/17/2015Results of Meeting
12/17/2015Amendment AGM Results
12/16/2015Retirement of Chairman
12/3/2015Appendix 3Y
12/2/2015Letter to Shareholders
12/1/2015Appendix 3Y
12/1/2015Change of Registered Office
11/18/2015Notice of Annual General Meeting/Proxy Form
11/4/2015Appendix 4G
11/4/20152015 Annual Report
11/4/2015September 2015 Quarterly Activities Report
10/19/2015Letter From Substantial Shareholder
10/15/2015Letter to Shareholders
10/6/2015Full Year Statutory Accounts
10/6/2015Notification of Date of Annual General Meeting
9/25/2015Extension Request
9/25/2015Reinstatement to Official Quotation
9/23/2015R&D Refund Received and Interim Funding Finalised
9/16/2015Suspension from Official Quotation
9/16/2015Notice of General Meeting/Proxy Form
9/16/2015Trading Halt
8/11/2015June 2015 Quarterly Activities Report and Cashflow Report
8/11/2015R&D Refund of at least $450,000
8/11/2015Change of Company Secretary
7/22/2015Investors and Shareholders Presentation
4/18/2015Support from Major Shareholders
4/18/2015SPP Forward Development Program
4/16/2015Appendix 3Y
4/16/2015Change of Director's Interest Notice
4/15/2015Copper Hill Scoping Study
3/30/2015Support from Major Shareholders
3/24/2015Copper Hill Resource Estimate
3/17/2015Appendix 3B
3/17/2015Half Year Accounts
3/17/2015Share Purchase Plan Cleansing Notice
3/9/2015Sale of Mulga Tank Equity Completed
3/9/2015Appendix 3Y
3/9/2015Share Purchase Plan Terms and Conditions
3/9/2015Share Purchase Plan
3/4/2015Copper Hill Update
2/22/2015Appendix 3Y
12/10/2014Copper Hill Drilling Update – GCHD474 & Program Summary
11/25/2014Copper Hill Drilling Update GCHD473 & GCHD474
10/30/2014Proxy Form
10/30/2014Notice of Annual General Meeting
10/29/2014September Quarterly Cashflow Report
10/28/2014September 2014 Quarterly Report
10/23/2014Copper Hill Drilling Update
Comments closed
 
Latest comment posted for this article
Be the first to comment
Add your comment
AUSTRALIA (GCR.AX)
0.002+0.00%
AUSTRALIA
AU$ 0.002
04/24 11:00 -
0%
Prev close Open
0.002 0.002
Low High
0.002 0.002
Year l/h YTD var.
- -  0.003 -
52 week l/h 52 week var.
- -  0.010 -50.00%
Volume 1 month var.
0 -33.33%
24hGold TrendPower© : -37
Produces
Develops Copper - Gold - Silver - Zinc
Explores for Copper - Gold - Iron - Lead - Nickel - Silver - Uranium - Zinc
 
 
 
Analyse
Interactive chart Add to compare
Interactive
chart
Print Compare Export
Last updated on : 1/4/2010
You must be logged in to use the porfolio and watchlists (free)
Top Newsreleases
MOST READ
Annual variation
DateVariationHighLow
2024-33.33%
2023-57.14%0.010.00
2022-63.16%0.510.01
20210.00%0.020.02
20200.00%0.020.02
 
5 years chart
 
3 months chart
 
3 months volume chart
 
 
Mining Company News
Plymouth Minerals LTDPLH.AX
Plymouth Minerals Intersects Further High Grade Potash in Drilling at Banio Potash Project - Plannin
AU$ 0.12-8.00%Trend Power :
Santos(Ngas-Oil)STO.AX
announces expected non-cash impairment
AU$ 7.66-0.71%Trend Power :
Oceana Gold(Au)OGC.AX
RELEASES NEW TECHNICAL REPORT FOR THE HAILE GOLD MINE
AU$ 2.20+0.00%Trend Power :
Western Areas NL(Au-Ni-Pl)WSA.AX
Advance Notice - Full Year Results Conference Call
AU$ 3.86+0.00%Trend Power :
Canadian Zinc(Ag-Au-Cu)CZN.TO
Reports Financial Results for Q2 and Provides Project Updates
CA$ 0.12+4.55%Trend Power :
Stornoway Diamond(Gems-Au-Ur)SWY.TO
Second Quarter Results
CA$ 0.02+100.00%Trend Power :
McEwen Mining(Cu-Le-Zn)MUX
TO ACQUIRE BLACK FOX FROM PRIMERO=C2=A0
US$ 12.26+2.68%Trend Power :
Rentech(Coal-Ngas)RTK
Rentech Announces Results for Second Quarter 2017
US$ 0.20-12.28%Trend Power :
KEFIKEFI.L
Reduced Funding Requirement
GBX 0.53-1.87%Trend Power :
Lupaka Gold Corp.LPK.V
Lupaka Gold Receives First Tranche Under Amended Invicta Financing Agreement
CA$ 0.06+0.00%Trend Power :
Imperial(Ag-Au-Cu)III.TO
Closes Bridge Loan Financing
CA$ 2.64-1.86%Trend Power :
Guyana Goldfields(Cu-Zn-Pa)GUY.TO
Reports Second Quarter 2017 Results and Maintains Production Guidance
CA$ 1.84+0.00%Trend Power :
Lundin Mining(Ag-Au-Cu)LUN.TO
d Share Capital and Voting Rights for Lundin Mining
CA$ 16.23+4.04%Trend Power :
Canarc Res.(Au)CCM.TO
Canarc Reports High Grade Gold in Surface Rock Samples at Fondaway Canyon, Nevada
CA$ 0.24+4.26%Trend Power :
Havilah(Cu-Le-Zn)HAV.AX
Q A April 2017 Quarterly Report
AU$ 0.22+2.38%Trend Power :
Uranium Res.(Ur)URRE
Commences Lithium Exploration Drilling at the Columbus Basin Project
US$ 6.80-2.86%Trend Power :
Platinum Group Metals(Au-Cu-Gems)PTM.TO
Platinum Group Metals Ltd. Operational and Strategic Process ...
CA$ 1.88+0.53%Trend Power :
Devon Energy(Ngas-Oil)DVN
Announces $340 Million of Non-Core Asset Sales
US$ 52.71+0.19%Trend Power :
Precision Drilling(Oil)PD-UN.TO
Announces 2017Second Quarter Financial Results
CA$ 8.66-0.35%Trend Power :
Terramin(Ag-Au-Cu)TZN.AX
2nd Quarter Report
AU$ 0.04+5.56%Trend Power :