esker

Definitions

1. A surname from German.
2. A long, narrow, sinuous ridge created by deposits from a stream running beneath a glacier.

Equivalents

Examples

“Another unusual ice-contact feature is an esker, a long, narrow, steep-sided ridge of glaciofluvial sand and gravel inhabiting a glaciated area. Eskers tend⟳ to follow⟳ valleys and lowlands, carefully picking a course between obstacles.”

“Another objection to the tunnel-valley interpretation comes from a comparison with eskers.[…]The esker rivers and the tunnel-channel rivers of Wisconsin therefore seem to have⟳ been the result⟳ of significantly different meltwater regimes.”

“2001, Allan D. Randall, Hydrogeologic Framework of Stratified-drift Aquifers in the Glaciated Northeastern United States, US Geological Survey Paper 1415-B, page B37, The multiple deltas must have⟳ formed sequentially, which led Thompson (1982) to conclude⟳ that the eskers were built in successive segments.”

CEFR level