medial moraine

American  

noun

1. a ridge of glacial drift formed by the junction of two converging valley glaciers.

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medial moraine Scientific  

/ mē′dē-əl /

1. See under moraine

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Example Sentences

When two tributary glaciers join together, the two lateral moraines combine to form a medial moraine.

From Textbooks • Jan. 1, 2017

The center line of the glacier, known as the medial moraine, was strewn with boulders that had tumbled and drifted down from the peak.

From The New Yorker • Apr. 4, 2016

July 16.—I made an early start with two coolies at 2.45 a.m. and followed the medial moraine to the Island.

From Mount Everest the Reconnaissance, 1921 by Howard-Bury, Charles Kenneth

Its eastern moraine, as already stated, is partly merged into the western moraine of Cascade Lake, to form a huge medial moraine.

From The Lake of the Sky Lake Tahoe in the High Sierras of California and Nevada, its History, Indians, Discovery by Frémont, Legendary Lore, Various Namings, Physical Characteristics, Glacial Phenomena, Geology, Single Outlet, Automobile Routes, Historic Towns, Early Mining Excitements, Steamer Ride, Mineral Springs, Mountain and Lake Resorts, Trail and Camping Out Trips, Summer Residences, Fishing, Hunting, Flowers, Birds, Animals, Trees, and Chaparral, with a Full Account of the Tahoe National Forest, the Public Use of the Water of Lake Tahoe and Much Other Interesting Matter by James, George Wharton

A medial moraine cannot be formed in this way, since no rock fragments can fall so far out from the sides.

From The Elements of Geology by Norton, William Harmon