Cambrian platform stratigraphy in the Warming Land – Freuchen Land region, North Greenland

Abstract

Cambrian platform strata in the Warming Land - Freuchen Land region are briefly described and correlated with sequences in more easterly and westerly areas of North Greenland. The name Ryder Gletscher Group is proposed for a mainly carbonate sequence (thickness about 640 m) in the Warming Land - Wulff Land area of Early Cambrian - Early Ordovician age. Dominant lithologies are dark burrow-mottled dolomites and paIe, cryptaIgaI laminites, but micrites, thin shales and thin sandstones are common in higher beds. Six formations are recognised but not formally described.