Rit (Vísindafélag Íslendinga) - 01.06.1923, Blaðsíða 106

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the banks at this place, divided by a stratum of gravel
(F'g. 1.)
Among the shells in the uppet stratum (No. 3 in Fig. 1.)
one boreal species (Anomia squatnula) was found, but in the
iower stratum only arctic species were found (No. 5 in
Fig. 1).
h) Mclabakkar and Ásbakkar, (pp. 34-41).
To the west of Hafnarfjall (mountain) old marine form-
ations and terraces are found continuously up to 40 or
50 m. above sea-Ievel. In some places higher up, there are
gravel ledges with surf-worn gravel 70-80 m. above sea-
level. Along the coast between Melar and Súlueyri are pre-
cipitóus cliffs, 30 m. high, formed of sea-clay, sand and
gravel, with a few old shells. The lowest part is formed of
laminated distorted clay (No. 6 in Fig. 2). Higher up there are
horizontal clay strata, and gravel and sand strata at the top
(Figs. 2 — 5). Shells were found low down in the strata from
sea-level up to 15 m. above (Nos. 5 and 6 in Fig. 2.). The
species are enumerated on pp. 36-37 and 39-41.
i) Marine strata in the neighbourhood of Leird, (pp. 41-44).
Surf-worn gravel and gravel ridges reach here to 80 or 90
m. above sea-level, and regular marine terraces continuously
up to 40 or 50 m. above sea-level. Shells are found by
Leirá in clay strata 5—10 m. above sea-level (p. 43).
j) Marine strata by Laxá (pp. 44 — 47).
Continuous marine deposits are found here up to 40 or 50 m.
above sea-level. At Miðfell there are gravel ridges about 70 m.
above sea-Ievel. The sea most probably penetrated a con-
siderable distance up the Svínadalur (valley), which was
probably a fjord (?) at the close of the Glacial Period. Shells
found at one place (at Laxá by Laxfoss) about 20 m. above
sea-level (p. 45).