@book{c570cad288ae447f92c18095e44f8c01,
title = "Structural and economic aspects of the Proterozoic marble on N{\^u}gssuaq, West Greenland",
abstract = "The Archaean gneisses of central Nugssuaq host a number of marble occurrences which probably belong to the Lower Proterozoic Marmorilik Formation. The largest marble occurrence is c. 150 m thick and exposed for c. 4 km along strike in a steep, 500-700 m high mountain cliff. Field work carried out in 1989 suggests that the marble forms a south-west facing recumbent isoclinal fold with a horizontal fold axis trending c. 135°. Horizons of massive sulphides, mainly sphalerite, are known from two localities within this marble occurrence. The mineralisation resembles the ore of the Black Angel mine situated some 80 km further north-east. A chip sample across a c. 1 m thick sulphide horizon returned 45\% Zn and 1\% Pb. The structural model presented here implies a potential for a significant zinc-lead deposit of the Black Angel type in central Nugssuaq. ",
keywords = "Greenland, central West Greenland, Greenland, central West Greenland",
author = "Garde, \{Adam A.\} and Bj{\o}rn Thomassen",
year = "1990",
month = jun,
doi = "10.22008/gpub/20584",
language = "English",
series = "Open File Series Gr{\o}nlands Geologiske Unders{\o}gelse",
number = "6",
publisher = "GGU",
}