Definitions for "Medial moraine"
Keywords:  moraine, glacier, merge, till, ridge
A strip of sediment in the interior of a glacier, parallel to the flow direction of the glacier, formed by the lateral moraines of two merging glaciers.
A streak of till in the center of a glacier. These are found downslope from the junction of two glaciers and are a merging of their lateral moraine deposits.
A ridge of till formed in the middle of a valley glacier by the junction of two lateral moraines where two valley glaciers converge.