Palaeovalleys at the basal unconformity of the Palaeoproterozoic Karrat Group, West Greenland

Pierpaolo Guarnieri, Camille A. Partin, Diogo Rosa

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11 Citationer (Scopus)


In the Rinkian belt of West Greenland, reworked Archaean gneisses are overlain by supracrustal successions of the Palaeoproterozoic Karrat Group, defined by Henderson & Pulvertaft (1967) as comprising two formations: the Qeqertarssuaq Formation and the Nûkavsak Formation. The group was later extended to include the Mârmorilik Formation (Henderson & Pulvertaft 1987) originally considered to be of Archaean age (Henderson & Pulvertaft 1967) but later shown to be Palaeoproterozoic, resting with a depositional unconformity on Archaean gneiss (Garde 1978). Henderson & Pulvertaft (1987) suggested that the carbonatedominated Mârmorilik Formation in the south was laterally equivalent to the siliciclastic-dominated Qeqertarssuaq Formation in the north, the two subbasins being separated by a basement topographic high.
Sider (fra-til)63-66
Antal sider4
TidsskriftGeological Survey of Denmark and Greenland Bulletin
StatusUdgivet - 15 jul. 2016


  • Programområde 4: Mineralske råstoffer


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