by Greg Klein | November 15, 2016
A new joint venture brings together Arctic Star Exploration TSXV:ADD and Margaret Lake Diamonds TSXV:DIA in the Northwest Territories’ Lac de Gras region. Finding inspiration in Kennady Diamonds’ (TSXV:KDI) success at Kennady North, the partners plan a similar approach to their newly compiled property.
By posting an approximately $200,000 bond with the NWT government, Margaret Lake has earned a 60% interest in 23 claims totalling 18,699 hectares comprising the Diagras property, the JV announced November 15. Hosting 13 known diamondiferous kimberlites, the claims were formerly part of Arctic Star’s 54,000-hectare T-Rex property.
The bond accompanies an application to extend the Diagras claims to August 2017.
“We identified the claims we wanted to joint venture based on our evaluation of historic data and we specifically focused on those claims that have known kimberlitic occurrences,” said Margaret Lake president/CEO Paul Brockington. His company will act as project operator.
The JV intends to follow Kennady’s modus operandi. The property’s Kelvin and Faraday kimberlites were dropped by De Beers and Mountain Province Diamonds TSX:MPV as they advanced Gahcho Kué, recently opened as the world’s largest new diamond mine in 13 years.
De Beers considered Kelvin and Faraday low grade, based on their lack of prominent magnetic anomalies, according to the Arctic/Margaret JV. Mountain Province then spun out Kennady to explore the pipes. That company “applied ground geophysics, gravity and Ohm mapper EM, which revealed extensions to these kimberlites that were not revealed in the magnetics,” the Diagras partners stated. “Subsequent drilling and bulk sampling has shown that these non-magnetic phases of the kimberlites have superior diamond grades to the magnetic phases and significantly increase the tonnage potential.”
Looking at some nearby deposits, the JV states that certain kimberlites at the Rio Tinto NYSE:RIO/Dominion Diamond TSX:DDC Diavik mine and the high-grade portions of Peregrine Diamonds’ (TSX:PGD) majority-held DO-27 kimberlite “are non-magnetic, proof that a magnetic-only approach in the Lac de Gras field could miss significant diamondiferous kimberlite bodies.”
The JV plans to follow Kennady’s surveying approach at Diagras. Most of the property’s kimberlites have had only one to three drill holes into their magnetic anomalies.
The partners also see potential in “two untested geophysical targets and several diamond indicator mineral anomalies that are not clearly sourced from the known pipes.” Ground geophysics are scheduled to begin next spring.