Geochemical prospecting at Mesters Vig, central East Greenland and at Mârmorilik, central West Greenland

Abstract

A prospecting method used in 1975 in Greenland and reported briefly on here measures the total cold extractable amount of seven heavy metals, Zn, Pb, Cu, Co, Ni, Sn and Ag. The primary aim of the method is to discover and outline metal anomalies but not to determine their metal content accurateIy. Once an anomaly is targeted this can be done by more detailed foIlow-up surveys. The two areas chosen to test the suitability of the method to Greenland conditions, were the lead-zinc mining district of Mesters Vig on the east coast and the Sorte Engel (Black Angel) mine at MârmoriIik on the west coast. The traverses run show strong anomalies over kriown veins (figs 37 & 38, AA' & CC'; fig. 39, GG' & HH'), as well as indicatingpreviously unknown mineralisation (fig. 38, BB'; the western anomaly in fig. 39, HH').

The mineral occurrences of central East Greenland

“…Meddelelser om Gr0nland, Geoscience 17 • 1986 Kunzendorf et al 1978, Steenfelt & Kunzendorf 1979, Stendal 1979a, heavy-mineral concentrates (pan samples) from the drainage system, from moraine and from scree cones (Hintsteiner 1977, Stendal 1980b, water samples (Asmund 1974, Nielsen & Steenfelt 1975, Asmund & Steenfelt 1976), moraine and scree fines, soil samples (Reece & Mather 1961, Lehnert-Thiel & Vohryzka 1968, Cooke 1976), rock samples (Stendal & Hock 1981, Steenfelt 1982 and vegetation (Brooks et al 1980) . In regional exploration the most frequently applied methods are stream-sediment and heavy-mineral concentrate sampling from the drainage systems.…”