CH-16 kimberlite
*Information in this current blog is based on information obtained up to mid 2018 and should be considered legacy at this time and should no longer be relied upon.*
This kimberlite was discovered via core drilling in the summer 2009 program.
Further RC drilling was also completed on this kimberlite.
Total of 3 core holes for 448 meters and 1 RC hole for 35.05 meters
Excerpt: (Sept 14 2009)
"The CH-13 and CH-16 kimberlites are represented by magnetic low
anomalies measuring 150 metres by 50 metres and 200 metres by 150 metres
respectively. Prior to drilling, kimberlite float was discovered at
surface by prospecting at all of these sites except CH-10. A kimberlite
outcrop measuring approximately 70 metres by 50 metres was discovered
at CH-14. The CH-10, CH14 and CH-15 kimberlites are described as being
dominantly magmatic. The CH-13 and CH-16 kimberlites are described as
being dominated by pyroclastic material. "
Size -- 3.75 hectares (large)
Excerpt: (Dec 3 2009)
"A 358.7 kilogram sample of drill core from CH-16 returned 66 diamonds, the two largest sitting on the +0.150 mm sieve. "
The 2 core drillholes were completed on the north end of the property -- Chidliak PDF
Excerpt: (Sept 16, 2010)
"As reported on September 14, 2009, the CH-16 kimberlite was discovered
by core drilling of a magnetic low anomaly with an estimated surface
expression of 200 metres by 150 metres. The magnetic anomaly consists of
two circular lobes, with only the northern lobe having been drilled in
2009. In 2010, the southern lobe was tested by drilling an RC hole at an
inclination of 60 degrees from horizontal. Approximately 24 metres of
kimberlite was intersected under 11 metres of overburden, confirming
that CH-16 is greater than one hectare in size."
Excerpt: (Feb 22, 2011)
"Microdiamond results have now been reported for 15 of the 34 kimberlites
discovered in 2010, and results for another four kimberlites are
expected in the coming weeks. Microdiamond results from the 2010
drilling of the following kimberlites discovered in 2008 and 2009 will
also be reported this quarter: CH-1, CH-9, CH-12 and CH-16. "
Excerpt: (March 3rd, 2011)
"All diamond results from the kimberlites analyzed under the 2010
Chidliak exploration programme have now been disclosed. To date, 50
kimberlites have been discovered at Chidliak, and 34 of the 35
kimberlites that were tested for diamonds are diamondiferous. Fourteen
of the kimberlites discovered in 2010 have been assigned a lower
priority based on their interpreted size potential and visual
characteristics and diamond testing of these bodies has been deferred.
At CH-17, the first kimberlite discovered in 2010, only three metres of
kimberlite core was recovered in the 2010 drill programme and therefore
it will be drilled this month in an effort to obtain sufficient
kimberlite material for diamond testing. "
It looks like the RC drill test in the southern (and untested) area of this kimberlite has been deferred indefinitely.
Peregrine Diamonds may be sitting on the RC chips from CH-16. If they still are, they will probably get processed at some point over the next couple of years.
The northern portion doesn't sound like it is going to be worthy of much additional, but because of the size of the kimberlite, it is worthwhile to confirm/rule out the southern portion via the RC test.
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