4 - Surface Geography and Earth Systems VOCAB

Front

Sediment transported by flowing ice and deposited beneath a glacier or at its toe

Back

Glacial Till

Front

Thin layers of glacial lake-bed sediment: silt & clay

Back

Varve

Front

Rock attached to Earth's crust

Back

Bedrock

Front

Total volume of empty space in a material, expressed as a percentage

Back

Porosity

Front

Sediment wedge at river mouth where stream meets standing water.

Back

Delta

Front

A streamlined, elongated hill formed by a glacier overriding till.

Back

Drumlin

Front

Deflection of objects, winds, and currents on Earth's surface due to rotation

Back

Coriolis Effect

Front

Removal of ice at a glacier's toe by melting, sublimation, or calving

Back

Ablation

Front

Sediment of ice-rafted clasts mixed with marine sediment

Back

Glacial marine

Front

Forward movement of a glacier’s toe when snow supply exceeds ablation.

Back

Glacial advance