Zinc mineralisation at Navarana Fjord, central North Greenland

Abstract

A 5-7 m wide vein of calcite intersecting Cambrian dolomite at the west coast of Navarana Fjord contains a 1 m wide breccia zone in which massive sphalerite constitutes the matrix. The mineralisation is hydrothermal and related to tectonic movements. Bitumen occurs in the breccia zone and it is suggested that the zinc and the hydroearbons were transported together in the mineralising fluid. The sphalerite mineralisation is seen as one expression of a major zine mineralising event indieated by a reconnaissanee stream sediment survey.