Fossilførende sedimenter ved Skudenes.

Abstract

The southern part of the island Karmøy (Western Norway, between Stavanger and Haugesund) displays a varying complex of slightly metamorphic sediments and igneous rocks: besides gabbro, there occur conglomerates, \"fragmental rocks\", sandstones, trondhjemites, and trondhjemitic arkoses etc. Particulary characteristic is a green polymict conglomerate near the southeastern corner of the island (heavy black dots on the map, fig. 1). In a sandstone series closely connected with this conglomerate, a fossil fauna from probably late Ordovician time was discovered in 1939 (fossil localities, fig. 8). As the rocks of the southern Karmøy have partly been regarded as being much younger (Downtonian), this new dating affords a basis for fresh discussion of the geological position of both conglomerate and \"quartz-augengneiss\" (as the arkoses and altered trondhjemites were named by Reusch in 1888). The author's observations during four days' field work are summarized on pp.12-18 and by the sketch map, fig. 2.