Toronto-based Platinova (PAS-T) has discovered what it calls an extensive zone of zinc-lead-silver mineralization on the Washington Land property in northwestern Greenland.
Surface grab samples have returned grades of up to 41% zinc and 7.7% lead, plus 258 grams silver per tonne. The mineralization is coincident with a large gravity anomaly.
Last summer, a government mapping party reported several showings of zinc mineralization on the property, some 30 km from tidewater. The mineralization occurs in strongly dolomitized and brecciated carbonate rocks that, according to Platinova, are equivalent to the stratigraphy which hosts the Polaris zinc-lead mine in the High Arctic.
A concession covering the area was awarded to the company earlier this year.
In June, Platinova began a program of gravity geophysics, geological mapping and sampling, the results from which indicate that the zone of intense dolomitization extends over about 3 km, with sulphide surface showings scattered along this strike length.
The stratigraphy dips shallowly toward the north. At the eastern end of this zone, the showings are mostly pyrite with relatively low but anomalous contents of base metals. A gravity anomaly 1,400 metres long and up to 250 metres wide was identified at the western end of the zone.
Surface grab sampling of loose gossan material at the western end of the gravity anomaly has returned high grades of zinc, silver and lead over an area measuring about 1,000 by 200 metres. Within the gossans, the zinc mineralization takes the form of zinc carbonate; the lead-bearing mineral is galena (lead sulphide); whereas the mineralogy of the silver mineralization has yet to be determined.
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