Field guide - IUGS

Fig. 3.4. Outcrop showing the rocks of the Vilasselga ridge washed out by the sea.
Stop 8. Late Glacial ice-marginal formation - dump moraine of the inner band of
Revdozerskii marginal belt.
Near the Moseevo village on the Kandalaksha Bay coast of the White Sea the well defined
frontal terrace is presented.According to the scheme of the Kola recessive marginal belts (Fig.
2.9) this landform is part of the inner band of the Revdozerskii marginal belt.
Stretching from the north to the south within the limits of the Kola Peninsula, the
Revdozerskii marginal belt changes here its strike and goes into the sea floor along the shore
from the west to the east. In northeast, from the distal side, outwash plain adjoins the terrace.
Bands of the layered sand with psephytic lenses of the uncnown thickness and strike are
exposed along the terrace cusp (Fig. 3.5). At the top of the terrace cusp the non-sorted
boulder-pebble-sandy rock (flow-till) outcrops. The height of the terrace cusp is 12-18 m.
The upper part of the frontal terrace is made up of the ablation till. There are numerous sinks,
swales, large boulder piles on the terrace surface. As a whole, the surface has a poorly convex
shape, gently going down for distal direction and more abruptly - for proximal one.
The detritus of the local bedrock, Terskii sandstones and granite porphyraceous,
predominates in petrographical composition of the material. Rare pebbles and boulders of
granulites removed by glacier from the area of the Kolvitskiye Tundra (it is located west of
Moseevo) and pebbles of nipheline syenite of the Khibina and Lovozero Mountains (they are
located to the North) are presented too. There are single pebbles of micaceous schists and
arkose sandstones.
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