Expose Till-floored lake plain
Till-floored lake plain Technical Terms
Till-floored lake plain: The floor of an extinct glacial lake where a thin (e.g. < 2 m), often discontinuous veneer of lacustrine sediments overlies till. Commonly its topography reflects the underlying, irregular or undulating till surface rather than a distinctive, flat, lake plain surface. It may include subdued, till-capped topographic highs, ringed by shore deposits or strandlines, which were once emergent islands. Compare – reworked lake plain. SW