TORONTO (http://www.cementprocesscrusher.com) – Canada- and Greenland-focused explorer North American Nickel (NAN) on Tuesday said the Geological Survey of Denmark and Greenland (GEUS) had recently announced the discovery of the oldest-known meteorite impact site in the world, in Greenland, rousing the company’s interest in its Maniitsoq project.
“GEUS had announced that the Maniitsoq structure represents ‘the remains of a gigantic, three-billion-year-old meteorite impact…’,” NAN said.
The GEUS’s announcement coincided with the publication of a paper on this subject in the journal ‘Earth and Planetary Science Letters’, authored by Adam Garde, Iain McDonald, Brendan Dyck and Nynke Keulen.
In the paper, the authors postulate that crustally contaminated intrusions of the Greenland norite belt (GNB) are products of the impact.
The GNB had been the focus of NAN’s work at Maniitsoq since it started the project last year. The company said it was interested in the GNB owing to its size and because it is comprised of noritic intrusions that show evidence of crustal contamination, which is believed to be important in the formation of nickel/copper-sulphide ores.
The GNB was also historically known to host numerous historical high-grade nickel occurrences and is remarkably underexplored.
“The Garde et al paper is exciting news because it suggests that the GNB is the result of an enormous and unique geological event. The impact hypothesis also has implications for exploration.
“For example, fracture patterns created by the impact may have controlled the emplacement and location of the prospective norite intrusions, which is the reason NAN would continue to follow GEUS’s ground-breaking scientific work at Maniitsoq with great interest,” the company said.
The Maniitsoq project is situated in south-west Greenland and NAN is currently undertaking a helicopter-borne electromagnetic survey over the GNB. Priority anomalies identified by the survey would be drilled later in the summer.
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