27 January 2016 | ASX Code: WCN |
Aucu Gold Deposit Exploration Update |
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Aucu Exploration license extended for five years to 31 December 2020
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Metallurgical test work underway at SGS Lakefield in Perth
- Structural Interpretation of high resolution magnetic survey underway in Perth
White Cliff Minerals Limited ("White Cliff" or the "Company") is pleased to report that the Kyrgyz State Agency for Geology and Mineral Resources (SAGMAR) has issued a five year extension to the Chanach exploration license (AP
590) with an expiry date of 31 December 2020.
The Company is now seeking statutory approvals for the 2016 exploration program from the relevant state authorities (Geology, Mining, Environment, Forestry and the regional government). A further announcement will occur once these approvals have been received.
As previously announced, the Chanach gold and copper project contains two JORC compliant mineral resources namely the Aucu high grade gold resource and the Chanach copper oxide resource.
Drilling during 2015 has identified an extensive zone of exceptionally high grade gold mineralisation along strike from the current 1.2 Mt at 4.2 g/t gold JORC resource. Average gold intersections were greater than 30 g/t over a 400 metres strike length and all intersections were shallower than 100 metres depth. In addition mineralisation is outcropping at surface.
Due to the exceptionally high gold grade of the 2015 assay results, all mineralised samples from the 2014 and 2015 drilling programs have been transported to Perth for detailed metallurgical test work to establish the amount of both gravity recoverable gold and leachable gold. Metallurgical results for the 2014 samples are expected in late January and the 2015 sample results are expected mid-February.
The Company has engaged consultants Southern Geoscience to prepare a detailed structural interpretation of the ground magnetic data collected in 2015. The interpretation will integrate existing mapping, drilling and magnetic data to produce a detailed 3 dimensional model which will be used to guide drilling locations in 2016. The model is expected to be completed in early February.
Managing Director Todd Hibberd commented that, "The extension of the Aucu project license for another five years to 31 December 2020 will allow the Company to confidently advance the Aucu gold deposit, potentially through to development. The structural modelling currently underway will provide a deeper understanding of the mineralised zones allowing more effective deployment of resources. The metallurgical test work is currently being undertaken in Perth will confirm the level of gravity recoverable gold, cyanide extractible gold and help to guide development of preliminary process parameters that will assist in the economic assessment of the deposit."
For further information please contact: www.wcminerals.com.au info@wcminerals.com.au
Todd Hibberd Managing Director |
+61 89321 2233 Suite 2, Level 1, 47 Havelock Street, West Perth WA 6872 |
JORC Compliance
The Information in this report that relates to exploration results, mineral resources or ore reserves is based on information compiled by Mr Todd Hibberd, who is a member of the Australasian Institute of Mining and Metallurgy. Mr Hibberd is a full time employee of the Company. Mr Hibberd has sufficient experience which is relevant to the style of mineralisation and type of deposits under consideration and to the activity that he is undertaking to qualify as a Competent Person as defined in the 2012 edition of the `Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (the JORC Code)`. Mr Hibberd consents to the inclusion of this information in the form and context in which it appears in this report.
Appendix 1The following information is provided to comply with the JORC Code (2012) requirements for the reporting of the Exploration Results and Mineral Resources on tenement AP590.
(Criteria in this section apply to all succeeding sections.)
Criteria | JORC Code Explanation | Commentary |
Sampling Techniques | Nature and quality of sampling (e.g. cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc.). These examples should not be taken as limiting the broad meaning of sampling | Drill samples were collected using a face sampling hammer with each metre of drilling deposited in a plastic bag that is fed through a three tier riffle splitter to obtain a 2.5-3kg sample. |
Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used. | Sample bags were visually inspected for volume to ensure minimal size variation. Were variability was observed, sample bags were weighed. Sampling was carried out under standard industry protocols and QAQC procedures | |
Aspects of the determination of mineralisation that are Material to the Public Report. In cases where 'industry standard' work has been done this would be relatively simple (e.g. 'reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay'). In other cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (e.g. submarine nodules) may warrant disclosure of detailed information. | Reverse circulation drilling was used to obtain one metre samples from which 3 kg was crushed to 1mm A 200 gram subsample was extracted using a Jones Divider and pulverized to 200 mesh (80 micron). A 2-10 gram sample is digested for gold analysis by Aqua Regia digest and Atomic Adsorption Spectrophotometry (AAS), and for copper analysis via pressed pellet X-ray florescence (XRF). | |
Drilling Techniques | Drill type (e.g. core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc.) and details (e.g. core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc.). | Reverse Circulation Drilling, 900CFM/350PSI compressor, with 133mm (5.25 inch) diameter face sampling hammer bit. Industry standard processes. |
Drill sample recovery | Method of recording and assessing core and chip sample recoveries and results assessed | Calculated volume of 1m RC sample is 36kg based on rock density of 2.6 g/cm3. Sample bags were visually inspected for volume to ensure minimal size variation. Were variability was observed, sample bags were weighed. Sampling was carried out under standard industry protocols and QAQC procedures |
Measures taken to maximise sample recovery and ensure representative nature of the samples. | No measures have been deemed necessary | |
Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material. | No studies have been carried out | |
Logging | Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies. | Drill samples have been geologically logged and have been submitted for petrological studies. Samples have been retained and stored. The logging is considered sufficient for JORC compliant resource estimations |
Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc.) Photography | Logging is considered qualitative | |
The total length and percentage of the relevant intersections logged. | Refer to text in the main body of the announcement | |
Sub-sampling techniques and sample preparation | If core, whether cut or sawn and whether quarter, half or all core taken. | No core drilling has been carried out |
If non-core, whether riffled, tube sampled, rotary split, etc. and whether sampled wet or dry. | Samples were riffle split from 35kg down to 3kg. Where samples were too wet to riffle split, samples were tube sampled. | |
For all sample types, the nature, quality and appropriateness of the sample preparation technique | Samples were collected using a face sampling hammer which pulverises the rock to chips. The chips are transported up the inside of the drill rod to the surface cyclone where they are collected in one metre intervals. The one metres sample is riffle split to provide a 2.5-3kg sample for analysis. Industry standard protocols are used and deemed appropriate. | |
Quality control procedures adopted for all sub- | At this stage of the exploration no sub sampling is |
White Cliff Minerals Limited 4
White Cliff Minerals Limited issued this content on 27 January 2016 and is solely responsible for the information contained herein. Distributed by Public, unedited and unaltered, on 27 January 2016 00:09:17 UTC
Original Document: http://wcminerals.com.au/content/uploads/2016/01/WCN_License-Extension_27.01.16.pdf