Rit (Vísindafélag Íslendinga) - 01.06.1923, Side 105

Rit (Vísindafélag Íslendinga) - 01.06.1923, Side 105
101 Old shells were found by Reykjadalsá, near Stóri Kroppur, 15 — 20 m. above sea-level (4 species, p. 26). The terraces here reached a height of 10 — 25 m. above sea-level. e) Shell-strata and marinc terraces at Flókadalsá, (pp. 26 — 28). Not far from the mouth of the river are clay terraces 20 — 30 m. above sea-Ievel, the height of which increases regularly up to 40 — 50 m. above sea-level. Shells were four.d in the clay strata 15 — 20 m. above sea-Ievel (species enumerated on p. 27). At the entrance of Flókadalur (valley), by Varmilækur, there are marine terraces covered with sea-worn gravel 70 — 75 m. above sea level. On the projecting mountain Varma- lækjarmúli there is a surf-formed ledge in the solid rock (rock-terrace) 80-85 m. above sea-level. f) Marine deposits and shells by the Grimsá (river), (pp. 28 - 30). Marine terraces with laminated clay are to be found along the river up to about 40 m. above sea-level. At the farm Ringnes 9 species of fossil shells were found in the clay 4 — 6 m. above sea-level (p. 28). At the entrance of Lundarreykjadalur are extensive marine terraces 75 — 90 m. above sea-level divided from the lower terraces by steep slopes or cliffs. g) Old marine deposits in Skorradalur (vallcy) and Andakýll, (pp. 30 — 34). On this lowlying area easily distinguishable marine form- ations are to be seen in many places, and also raised terraces with clay strata and gravel ridges, up to 40 or 50 m. above sea-level. Higher up the marine terraces are to be found in a few places 65 — 75 m. above sea- level; for instance at the entrance of Skorradalur. The sea probably penetrated into the Skorradalur after the Glacial Age. The author discovered old shells in two places by Grjóteyri, 10 — 20 m. above sea-level (species enumerated on pp. 32 — 33). There are tivo clay strata in
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Rit (Vísindafélag Íslendinga)

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