description Wright Esker Overview
help Wright Esker FAQ
What is Wright Esker?
Wright Esker is a large glacial landform in Canada. An esker is a long ridge of sand and gravel deposited by meltwater flowing beneath or within a glacier.
How did Wright Esker form?
Glacial meltwater carried sediment through an ice tunnel and left the material behind as the ice retreated. The resulting ridge records the direction and movement of ancient ice.
Why is Wright Esker important to geologists?
Its shape and sediment provide evidence about past glacial drainage and ice-flow conditions. Features like this help reconstruct the landscape that existed after the last major glaciation.
What is the difference between an esker and a moraine?
An esker is mainly a meltwater-built ridge of sorted sand and gravel. A moraine is sediment deposited directly by glacial ice and is usually less sorted.
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