SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Gold/Mining/Energy : Diamonds North Resources Ltd -- Ignore unavailable to you. Want to Upgrade?


To: VAUGHN who wrote (18)10/11/2002 11:46:09 AM
From: Rory McLeod  Read Replies (1) | Respond to of 334
 
Carina kimberlite has high diamond count
Thursday October 10, 6:25 pm ET

BLUE ICE PROJECT, VICTORIA ISLAND
TSX Venture Exchange: DDN
VANCOUVER, Oct. 10 /CNW/ - Diamonds North Resources Ltd. reports significant diamond results from a new kimberlite on the Galaxy Structure, Blue Ice Project, Victoria Island. The Carina kimberlite, located 7.5 kilometres from Sand Piper along the Galaxy Structure and referred to as the 5363 Anomaly in a previous news release (August 8, 2002), was recently tested by 3 diamond drill holes. The purpose of the 2002 drilling program was designed to discover and sample kimberlite in significant quantity for micro diamond analysis.
Table I below, shows diamond recoveries for two different phases (Upper Carina and Lower Carina) of the Carina kimberlite identified in drill holes BI- 02-08A, BI-02-08B and BI-02-09. The Upper Carina consists of kimberlite combined for analysis from the upper portions of drill holes BI-02-08A and BI- 02-09. The Lower Carina combined the lower portions of kimberlite from drill holes BI-02-08A, BI-02-08B and BI-02-09 for analysis.

Table I
Diamonds Results Carina Kimberlite

-------------------------------------------------------------------------
DIAMONDS RECOVERED
---------------------------------------
+0.5 mm +1.0 mm
---------------------------------------
Phase Sample Weight (kg) Total 1 Axis 2 Axes 1 Axis 2 Axes
-------------------------------------------------------------------------
Upper Carina 23.69 8 2 0 0 0
-------------------------------------------------------------------------
Lower Carina 68.72 78 6 3 2 1
-------------------------------------------------------------------------

The Upper Carina kimberlite contains eight diamonds of which two have one
dimension greater than 0.5 mm. This kimberlite is very soft and intensely clay
altered which led to some core recovery loss due to washing by abrasive drill
water under pressure.
The Lower Carina kimberlite contains 78 diamonds in 68.72 kg of sample
with six diamonds exceeding 0.5 mm in one dimension, currently referred to as
macrodiamonds. Two of the diamonds have one dimension exceeding 1 mm and one
diamond has two dimensions exceeding 1 mm. This kimberlite sample contains a
calculated 11.4 diamonds per 10 kg. According to the drill log this kimberlite
is competent, medium grained, olivine rich and abundant in indicator minerals.
Table II below, shows the square mesh, sieve size diamond distribution of
the two phases of the Carina kimberlite.

Table II
Carina Kimberlite Diamonds
----------------------------------------------
Square Mesh Sieve Sizes
Sample Wt (kg) 68.72 23.69
----------------------------------------------
Lower Upper
----------------------------------------------
Sieve Size Diamonds Diamonds
----------------------------------------------
+0.600 mm 2 0
----------------------------------------------
+0.425 mm 0 1
----------------------------------------------
+0.300 mm 5 2
----------------------------------------------
+0.212 mm 15 1
----------------------------------------------
+0.150 mm 23 3
----------------------------------------------
+0.100 mm 33 1
----------------------------------------------
Total Stones 78 8
----------------------------------------------

An angled drill hole, designed to test the width of the magnetic anomaly, was lost in the 32 metre thick overburden. Subsequent drill holes drilled subvertically from the middle of the anomaly were successful in reaching bedrock and encountered several 10-18 metre intervals of kimberlite separated by 8-10 metres of limestone. Two holes were lost while drilling in the lower kimberlite due to squeezing conditions caused by intense clay altered upper kimberlite. The upper kimberlite was encountered between 44 metres and 62 metres while the lower kimberlite was encountered from 72 to 84 metres at which depth the drill rods twisted off while still in kimberlite.
The Carina magnetic anomaly is large, extending for 350 metres along the Galaxy Structure. The width averages close to 125 metres. Only a very small portion of the Carina kimberlite has been drill tested. With a significant diamond population now established, the entire Carina kimberlite will be thoroughly tested next year with a larger drill rig.

The Carina kimberlite is located midway along the 20 kilometre long Galaxy Structure, 7.5 kilometres from the recently announced Sand Piper kimberlite results. Just west of Carina, the Galaxy Structure crosses into the Northwest Territory from Nunavut, where it continues for another 10 kilometres, on land controlled by Diamonds North Resources Ltd.

A number of untested, sizeable magnetic anomalies lie along the Galaxy Structure in NWT, as well as the known Snow Goose and Gosling kimberlites where a +0.20 ct diamond was recovered (September 5, 2002).

Further Galaxy Structure diamond results are anticipated shortly.

Kimberlite samples were split and logged in secure facilities at the field camp. Sample bags were put into sealed, solid containers and shipped by air to SGS Lakefield Research in Ontario. SGS Lakefield's standard caustic fusion diamond recovery method was utilized for all samples. SGS Lakefield is accredited by the Standards Council of Canada to the ISO/IEC Guide 25 standard for specific registered tests.

Bernard H. Kahlert
Vice President Exploration