Glacial deposits exposed along the Keith Water
Red Scar and East Water
Significance: thick sequences of glacial deposits on the border of East and Mid Lothian
Red Scar (NT 438631) and East Water (NT 437623) are river bank section lying within the meltwater channel system of the Keith Water. Both sites were described by JAT Young in 1966 at a time where exposure of these deposits was probably rather better than at present.
Red Scar is a 30 m face in the Keith Water of which the lower third was vegetated. The sequence shows:
Nearby a section in the valley side of the East Water shows:
Young concluded that the local stratigraphy showed an initial movement of ice from the southern uplands, and a later movement across part of the Midlothian basin. Till fabric analyses showed that the tills were mainly lodgement tills but the fabrics revealed no clear differences between successive units, probably a reflection of deposition with pre-existing and deep valleys. The numerous sand layers point to ponding of meltwater as ice margins fluctuated.