GEOLOGY OF GREENLAND SURVEY BULLETIN
VOLUME 184

Exposure of the Cretaceous?Palaeogene sedimentary and volcanic succession at Annertuneq on the north coast of Nuussuaq. Below the conglomerate are unnamed upper Campanian turbidite slope mudstones. They are unconformably succeeded by Maastrichtian?Paleocene submarine canyon conglomerates and turbidite slope mudstones of the Kangilia Formation. The Cretaceous?Paleocene boundary is placed at 452 m a.s.l. The succession is topped by hyaloclastites of the Vaigat Formation. The mountain is about 1.3 km high. Photo: F.G. Christiansen.

Contents

Palaeontology
The myodocope ostracode Entomozoe from an early Silurian (Telychian, Llandovery) carbonate mound of the Samuelsen Høj Formation, North Greenland D.J. Siveter and P.D. Lane
The youngest Maastrichtian ammonite faunas from Nuussuaq, West Greenland. W.J. Kennedy, H. Nøhr-Hansen and G. Dam

Geochronology
⁴⁰Ar?³⁹Ar dating of alkali basaltic dykes along the south-west coast of Greenland: Cretaceous and Tertiary igneous activity along the eastern margin of the Labrador Sea. L.M. Larsen, D.C. Rex, W.S. Watt and P.G. Guise
Geochronology of granitic and supracrustal rocks from the northern part of the East Greenland Caledonides: ion microprobe U?Pb zircon ages. F. Kalsbeek, A.P. Nutman, J.C. Escher, J.D. Friderichsen, J.M. Hull, K.A. Jones and S.A.S. Pedersen

Geochemistry
Variability of XRF and AAS analyses from the Rock Geochemical Laboratory of the Geological Survey of Denmark and Greenland. A. Steenfelt
Analytical procedures in the Rock Geochemical Laboratory of the Geological Survey of Denmark and Greenland. J. Kystol and L.M. Larsen

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