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

Pierpaolo Guarnieri, Camille A. Partin, Diogo Rosa

Research output: Contribution to journalArticleResearchpeer-review

10 Citations (Scopus)

Abstract

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.
Original languageEnglish
Pages (from-to)63-66
Number of pages4
JournalGeological Survey of Denmark and Greenland Bulletin
Volume35
DOIs
Publication statusPublished - 15 Jul 2016

Programme Area

  • Programme Area 4: Mineral Resources

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