Microsoft Word - 20160613 AUQ ASX Announcement - Further Information on Oman Project Update
Alara Resources Limited
A.B.N. 27 122 892 719
Level 11, 216 St Georges Tce Perth WA 6000, Australia
GPO Box 2517
Perth WA 6831
Telephone | +61 8 9481 0389
Facsimile | +61 8 9463 6103
Web | www.alararesources.com Email | [email protected]
ASX/MEDIA RELEASE
Tuesday, 14 June 2016
FURTHER INFORMATION REGARDING
HIGH GRADE COPPER & GOLD MINERALISATION AT THE AL HADEETHA PROJECT
Further to the ASX Announcement of 8 June 2016, and in accordance with ASX listing rule 5.7, Alara Resources Limited (ASX: AUQ) (Alara or Company) is pleased to provide Appendices containing additional information on the copper and gold mineralisation at the Al Hadeetha Project in Oman.
Appendix 1 contains sampling techniques, data and material drill-hole information (as per sections 1 and 2 of Table 1 of JORC Code 2012) relating to three drill holes. Of these three drill hole intersections, complete results of only one (WH16RD012) were announced on June 8, 2016. Announcement of intersections from the other two drill-holes is still pending.
The drill hole primary mineralised intersections announced on 8 June, had a 0.2% Cu cut-off grade which is a natural break/sharp change is assay results differentiating between mineralised and non-mineralised intersections. Grade cut off at 0.2% Cu is also a reasonable economic cut-off to delineate potential mineralisation. The length is reported as down-hole length in a vertical hole. True thickness will be calculated at resource interpretation stage. The grade was reported as down-hole length weighted average grade.
The remaining results shall be reported after completion of drilling, along with full analyses of samples which is expected by the end of the month.
Appendix 2 contains Washihi JORC Resource table, plus sampling techniques, data and exploration results (as per sections 1, 2 and 3 of Table 1 of the JORC Code 2012) relating to the copper-gold Resource at Al Hadeetha Project's Washihi deposit. The information in the JORC Resource table was prepared and first disclosed under the JORC Code 2004. It has now been updated to comply with the JORC Code 2012 on the basis that the information has not materially changed since it was last reported.
ASX Code | AUQ
DRILL HOLE COLLAR TABLE
APPENDIX 1
|
BH_ID
|
COLLAR EASTING
|
COLLAR NORTHING
|
COLLAR RL (M)
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AZIMUTH
(⁰)
|
DIP
(⁰)
|
133MM RC DRILLING (M)
|
HQ3 CORE DRILLING (M)
|
END OF HOLE DEPTH (M)
|
|
WH16RD012
|
602184
|
2517810
|
457
|
0
|
90
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0.0 TO 108
|
NIL
|
108
|
|
WH16RD013
|
602190
|
2517894
|
457
|
0
|
90
|
0.0 TO 89.3
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89.3 TO 130.5
|
130.5
|
|
WH16RD014
|
602270
|
2517691
|
463
|
0
|
90
|
0.0 TO 109.5
|
NIL
|
109.5
|
JORC 2012 TABLE -1: SECTION 1: SAMPLING TECHNIQUES AND DATA
Criteria JORC Code explanation Commentary
Sampling techniques
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Nature and quality of sampling (e.g. cut channels, random chips, or specific specialized 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.
-
Include reference to measures taken to ensure sample representivity and the appropriate calibration of any
-
Diamond drilling and reverse circulation (RC) drilling were used to obtain samples for geological logging and assaying.
-
RC drill holes are sampled at 1m intervals and split using a cone splitter attached to the cyclone to generate a split of ~3 or more kg.
-
Diamond core was halved with a diamond saw and generally sampled at 1m intervals with shorter samples at geological contacts.
-
Sampling was systematic. Samples selected for sampling and subsequent sample preparation and chemical analysis are based on geological logging with sample breaks after appropriate sampling interval (average length of sample is 1m) or at rock unit contact.
-
The samples were checked against sample submittal form, dried and crushed to 70% -2mm. then rotary split off up to 250g; the split was pulverized to better than 85% passing a 75 micron. The resultant pulps were then analysed. Pulverizer bowls were carbon steel. The
|
Criteria JORC Code explanation Commentary
|
|
measurement tools or systems used. pulverized samples were analysed for Copper digested by four acid digestions followed by
-
Aspects of the determination of ICP-OES; for Gold using 50g Fire Assay followed by AAS. After pulverization, lab stored all mineralization that are Material to the the rejects for future use. Pulverization at laboratory was controlled by Grind checks. 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 mineralization types (e.g. submarine nodules) may warrant disclosure of detailed information.
|
|
Drilling Drill type (e.g. core, reverse circulation, RC Drilling was conducted using a reverse circulation rig with 115mm to 133mm face-sampling
techniques open-hole hammer, rotary air blast, auger, bits.
Bangka, sonic, etc.) and details (e.g. core Diamond drilling was conducted only in holes where RC drilling was difficult to proceed or due to
diameter, triple or standard tube, depth of encountered ground water in the hole. Diamond drilling was in HQ3 drill diameters.
diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc.).
|
|
Drill sample Method of recording and assessing core RC samples were weighed on a regular basis but no sample recovery issues were encountered
recovery and chip sample recoveries and results during the drilling program.
assessed. Overweight samples (>3kg) were re-split with portable riffle splitter to about 2Kg.
|
|
Criteria
|
JORC Code explanation
|
Commentary
|
-
Measures taken to maximize sample recovery and ensure representative nature of the samples.
-
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.
|
|
Drill core recoveries from diamond drilling were recorded following standard logging practice by recording drill hole run length and recovered length. Drill core recoveries were recorded based on run and sample length.
|
|
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.
-
Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc.) photography.
-
The total length and percentage of the relevant intersections logged.
|
|
RC Chips from drill holes were geologically logged following standard operating procedure. Basic geotechnical logging has been done wherever core drilling was conducted.
The entire drill holes length was logged.
|
|
Sub- sampling techniques and sample preparation
|
-
If core, whether cut or sawn and whether quarter, half or all core taken.
-
If non-core, whether riffled, tube sampled, rotary split, etc. and whether sampled wet or dry.
-
For all sample types, the nature, quality and appropriateness of the sample preparation technique.
|
|
RC drill holes are sampled at 1m intervals and split using a cone splitter attached to the cyclone to generate a split of ~3 or more kg.
Diamond core was halved with a diamond saw and generally sampled at 1m intervals with shorter samples at geological contacts.
RC sample splits (1 to 2kg) are pulverized to 85% passing 75 microns.
Diamond core samples are crushed to 70% passing 2mm and then pulverized to 85% passing 75 microns.
Rotary split of 250g was pulverized to better than 85% passing 75 micron.
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