Page:Report of the Second Norwegian Arctic Expedition in the "Fram," 1898-1902 (volume 4).djvu/476

 1898-1902. No. 36.] SUMMARY OF GEOLOGICAL RESULTS. 7 Also on the north side of Princess Marie Bay, SCHEI found the lime- stone of Norman Lockyer Island. It is overlaid by sandstones and a limestone-conglomerate. Farther to the north on the coast of Kane Basin SCHEI has not been, but from there we have the important observations made by Feilden and De Ranee. 1 The other district in which SCHEI observed the oldest paleozoic sedimentary rocks was in the eastern part of the north side of Jones Sound. On the western side of Fram Fjord (north of Smith Isl.), he found above the Pre-Cambrian: I light-coloured sandstone with diabase and higher II yellowish magnesian limestone with sandstone layers. In the Havnefjord (Harbour-Fjord) district we find a basal sandstone overlaid by 4 500 m. of limestone-conglomerates, limestones and shales, and still higher 6 700 m. mostly brownish limestones. In the lower part of these brownish limestones, at the South Cape on the west side of the mouth of Havnefjord, were found Hall/sites catenularia LIN, Strophomena sp., Maclurea sp., the two last mentioned too fragmentary for exact determination. 2 This fauna indicates a Trenton age, though nothing can be said with certainty. As no fossils were brought from the series below the brown limestone we have no direct proof as to the age of the basal beds, o: no material for conclusion as to when the paleozoic sea invaded this district. However, if we consider the vast quantity of sediment lying below the limestones, and the predominance of limestone-conglomerates which belonged to the most characteristic rocks of the basal series of Bache Peninsula, it seems quite safe to assume that also in the present Jones Sound district the sea had invaded the land at earliest Ordovician time. Of some importance is also the occurrence of diabase in sandstone above the Pre-Cambrian at Fram Fjord, as this gives us conditions very similar to those at Cape Camperdown. However, as the diabase is intrusive and not effusive, it cannot be fully relied upon as a guiding zone. A fact that points strongly towards the conclusion mentioned is the occurrence of an interesting structure found in a piece of limestone brought by SCHEI from the east side of Havnefjord, taken from a locality near the winter quarters of the ,,Fram" 18991900, and certainly from a horizon far below the brown limestone and not far above the Pre-Cambrian. (From the same locality were brought pieces of limestone-conglomerate). The structure is illustrated in pi. I and is identical with what, together with 1 Quarterly Journal Geol. Soc. 34, 1878. 2 See Olaf Holtedahl : On the fossil faunas from Per Schei's Series B. This report No. 32, 1914 p. 4.