Abstract

An 8 m long pod-shaped mass of deformed diamicton and sand occurs in Lake Maumee III glaciolacustrine sediments of the Port Stanley Drift, near Port Bruce, Ontario. Sedimentary structures observed in the diamicton mass and enclosing sands indicate large-scale loading accompanied their deposition. The lithology of the mass resembles admixed Port Stanley and Catfish Creek tills, which occur in moraines and other bodies of drift nearby. The diamicton mass may have been deposited en masse from seasonal or glacial floating ice or by subaquatic sediment gravity flow from floating ice or local moraines.

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