ECOLOQICAL STUDIES AT LOUQH I N E
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Miles
Purple slates and silts
%
+
Anticlinal axis
-*- Synclinal axis
Fault
-.-.-.-.-.Massive cross-bedded
sandstone
yo Dipo ZAturned
FIG. 3. Geological map of Lough Ine area.
east-facing minor escarpment orientated a t right angles to the tectonic
trend. This irregularity of the valley floor would cause the ice to initiate
a scouring action at the foot of the slope. Plucking would be most effective where the ice rode over the well-joined sandstone series, so that the