Video: Slides with Voiceover - Ken Armstrong's
March 4th 2017 PDAC Presentation  

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Summary

The Naujaat (Qilalugaq) Diamond Project.  

North Arrow’s diamond exploration programs are conducted under the direction of  President and CEO, Ken Armstrong, P.Geo., a Qualified Person under NI 43-101. Mr. Armstrong has reviewed and approved all information posted on this page that is of a scientific or technical nature.

Location:  Melville Peninsula, Nunavut. 9km north of Naujaat (Repulse Bay).
Size: 10,742 hectares of contiguous mineral leases and claims 
Ownership: 100% North Arrow
Stage: PEAdelineation drilling and sampling for diamonds to obtain diamond value
Inferred Mineral Resource*:  26.1 million carats - 48.8 million tonnes total with an average (+1 DTC) total diamond content of 53.6 cpht to a depth of 205m - Caution *Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability
Closest Infrastructure:  7km from tidewater; 9km from the hamlet of Naujaat

Technical Reports: NI 43-101 Technical Report, Mineral Resource, May 13, 2013

Related Diamond Papers and Presentations: 
Characterization and Grading of Natural-Color Yellow Diamonds - GIA
Type Classification of Diamonds - Christopher M. Breeding and James E. Shigley
Companion Presentation to April 21, 2015 Press Release on FTIR Study of Yellow Diamonds From Q1-4 Kimberlite - Type Ib Diamonds


Highlights


Overview - The Naujaat Diamond Project

Details on the NI 43-101 Resource

The 12.5 hectare Q1-4 kimberlite is the largest diamondiferous kimberlite pipe in the eastern Canadian Arctic. The May 2013 Technical Report outlines an Inferred Mineral Resource at Q1-4 estimated to be 26.1 million carats total diamond content (assumes 100% recovery) from 48.8 million tonnes total content of kimberlite with an average +1 DTC total diamond content of 53.6 carats per hundred tonnes (cpht) extending from surface to a depth of 205m.

Additional resource upside in the form of a target for further exploration ("TFFE") was estimated at between 7.9 to 9.3 million carats of diamonds (from 14.1 to 16.6 million tonnes total content of kimberlite with an average +1 DTC total diamond content of 56.1 cpht (assumes 100% recovery), extending from 205m depth to 305m depth.  Q1-4 is currently being drilled for the first time in 12 years as part of a planned 4500 m program to gain information on what the kimberlite is doing at these depths with respect to diamond grade and geology.  Portions of the kimberlite beneath lakes will be drilled in the spring of 2018 while the water is frozen.  Once completed an update to the NI 43-101 resource statement based on kimberlite down to 305m, the maximum depth of a theoretical open pit, will be issued. 

The current 2013 mineral resource estimate comprised the integration of kimberlite volumes, density, petrology and diamond content-data obtained from 5,133 m of diamond drilling, 2,714 m of reverse circulation (RC) drilling, 2.9 tonnes of samples submitted for microdiamond analysis, 257.7 tonnes of samples submitted for macrodiamond sampling with 59.2 carats of diamonds (2,054 stones) recovered from RC drilling, 7.5 carats of diamonds (205 stones) recovered from surface trenching and 2.36 carats of diamonds (69 stones) recovered from HQ diameter diamond drilling.

The reader is cautioned that mineral resources are not mineral reserves and do not have demonstrated economic viability. In addition, the potential quantity and grade of any target for further exploration is conceptual in nature, there has not been sufficient exploration to define a mineral resource, and it is uncertain if further exploration will result in the target being delineated as a mineral resource.


Project Update

The $2 million 2017 summer field program was completed on time and on budget (announced September 12, 2017) including fuel and drilling resupply for 2018; a further $1 million has been earmarked for laboratory costs.

In total, 3,469 m of drilling was completed in 11 holes, confirming the overall size of the Q1-4 body and better defining the size and shape of the kimberlite at depth.

The drilling yielded 2,440 m of kimberlite core which will be used for petrography, indicator and microdiamond analysis and will contribute to a new geological model planned for 2018.

Drilling between 205 and 305 m below surface (-135 to -235 masl) confirmed (or possibly expanded) previous interpretations of overall pipe geometry with the potential to add significant mineral resources below 205 m (-135 meters above sea level "masl").  The estimated surface area of the kimberlite at 305 m depth below surface (-235 masl) is at least 5 ha and the body remains completely open to depth with the deepest drillhole terminating in kimberlite at a depth of 376 m (-311 masl).

A 234 wet tonne mini-bulk sample collected from a single pit (announced July 24, 2017), targeting an undertested area of the kimberlite is currently being processed at Microlithics laboratory in Thunder Bay Ontario for macrodiamond, microdiamond and indicator minerals.  The results will contribute to a better understanding of overall diamond value and the distribution of coloured diamonds within the Q1-4 kimberlite, and will aid in the planning for future bulk sampling.

As part of the 2017 program, North Arrow also commissioned archeological, ecological mapping and initial engineering surveys of potential road routes from the Company’s lay down, located 1 km north of Naujaat, out to the Q1-4 kimberlite. Results of these surveys will be used to pursue permitting options for a road or winter trail to the kimberlite to take advantage of the deposit’s close proximity the Hamlet of Naujaat during future evaluation and bulk sampling of the deposit.
 

 

       

 

 
 
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