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Geophysics show potential kimberlite expansion on Margaret Lake Diamonds/Arctic Star Exploration’s Lac de Gras JV

by Greg Klein | August 29, 2017

Borrowing techniques that proved successful at Kennady North, Margaret Lake Diamonds TSXV:DIA and Arctic Star Exploration TSXV:ADD announced geophysical results that potentially expand their Diagras property’s known kimberlites. The partners hold 60% and 40% respectively of the joint venture in the Northwest Territories’ diamond-rich Lac de Gras region, where Margaret Lake acts as operator.

Geophysics show potential kimberlite expansion on Margaret Lake Diamonds/Arctic Star Exploration’s Lac de Gras JV

Last spring’s ground program of magnetics, gravity and electromagnetics targeted known kimberlites as well as “unresolved targets generated from public domain data,” the companies stated. Similar techniques have helped Kennady Diamonds TSXV:KDI further its understanding of the Kennady North property’s Kelvin and Faraday kimberlites.

Results dating to 2005 on Diagras’ Jack Pine kimberlite identified a north-south axis extending more than 500 metres, with about four to five hectares at surface. But recent work north of Jack Pine shows a possible new discovery that’s been named Sequoia. Although verification would call for more drilling, the new findings indicate an anomaly that doubles the geophysical footprint, potentially making this “the largest kimberlite complex in the Lac de Gras field,” according to the partners.

Geophysics around Diagras’ Black Spruce kimberlite show anomalous gravity lows up to about 200 metres south and east of a magnetic low and its corresponding diamondiferous drill results by a previous operator. Again, drilling will be necessary to confirm the presence of additional kimberlite.

The partners also reported other geophysical signatures that might indicate additional kimberlite in and around other known kimberlites on the 18,699-hectare property. Further geophysical evaluations are planned for next spring, along with a drill program.

In addition to its Diagras interest, Margaret Lake holds its namesake Margaret Lake project adjacent to Kennady North. In July, Arctic Star announced plans to acquire the Timantti project in Finland, where due diligence has confirmed the presence of micro-diamonds. Arctic Star also holds the CAP rare earths and rare metals prospect in east-central British Columbia. Early this month the company announced discovery of a carbonatite-syenite complex, an extremely rare occurrence potentially associated with “a plethora of commodities” and “the dominant source for niobium and rare earth elements,” the company stated.

Late last month Arctic Star offered a private placement up to $1.25 million.

Read Isabel Belger’s interview with Arctic Star president/CEO Patrick Power.

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