A north-northwest-trending crustal segment transects from Kaminak Lake (central Hearne Domain) in the south to Yathkyed Lake (northern Hearne Domain) in the northwest, consisting of Archaen supracrustal belts that preserve mostly Archean mafic to felsic volcanic rocks (greenschist-grade supracrustal and granitoids), metamorphic cooling of hornblende and Proterozoic biotite.
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The Eastern Arctic is serviced by the smaller town of Rankin Inlet, which in turn is serviced by barge during summer.
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In comparison, drilling in the Eastern Arctic is too remote compared to the Slave Craton, which is serviced by the fully developed infrastructure of Yellowknife.
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