Sa obronaka i proplanaka, ispod kojih se nalaze lednici (glečeri), pada na lednike krupno i sitno kamenje i zemlja; lednik, krečući se polako naniže, nosi sobom taj kameni materijal, koji se lagano slaže uz njegove bokove u dugačke redove; sav taj materijal zove se bočna morena; kada se dva lednika sa svojim morenama sastanu i spoje u jedan, onda se i njihove bočne morene spoje u jednu, tzv. središnju morenu.
ETYM French Cf. Prov. German mur stones broken off, Italian mora a heap of stones, hillock, German mürbe soft, broken up.
Accumulated earth and stones deposited by a glacier.
Detritus deposited by glacier.
Rocky debris or till carried along and deposited by a glacier. Material eroded from the side of a glaciated valley and carried along the glacier’s edge is called a lateral moraine; that worn from the valley floor and carried along the base of the glacier is called a ground moraine. Rubble dropped at the snout of a melting glacier is called a terminal moraine.
When two glaciers converge their lateral moraines unite to form a medial moraine. Debris that has fallen down crevasses and becomes embedded in the ice is termed an englacial moraine; when this is exposed at the surface due to partial melting it becomes ablation moraine.