Sedimentary strata, Quarternary, late to post glacial
The geology encountered in the borehole consisted of 1.5 m post glacial, fluvial sand, followed by a 16.3 m thick marine sequence of silty clays with some silt and sand layers as well as occasional boulders. The borehole was terminated at a depth of 20.5 m b.g.s. following a 2.3 m thick coarse grained sequence of glacial origin. The termination depth is expected to coincide with the depth to bedrock.
The fine-grained marine sequence showed extremely high volumes of segregated ice in the form of ice lenses.
Top of hill or ridge
Situated in a large unexploited area in the central part of town, characterized by considerable active thermokarst. The borehole is presently relatively undisturbed by thaw.