Editing Moraine (section)

===Medial moraine===
[[File:Nuussuaq-peninsula-moraines.jpg|thumb|Medial moraines, [[Nuussuaq Peninsula]], [[Greenland]].]]

A medial moraine is a ridge of moraine that runs down the center of a valley floor. It forms when two glaciers meet and the debris on the edges of the adjacent valley sides join and are carried on top of the enlarged glacier. As the glacier melts or retreats, the debris is deposited and a ridge down the middle of the valley floor is created. The [[Kaskawulsh Glacier]] in the [[Kluane National Park]], [[Yukon]], has a ridge of medial moraine 1&nbsp;km wide.<ref>{{cite journal |last1=Loomis |first1=S.R. |year=1970 |title=Morphology and structure of an ice-cored medial moraine, Kaskawulsh Glacier, Yukon |journal=Arctic Institute of North America Research Paper |volume=57 |pages=1–65}}</ref>

{{wide image|Bruggen-PioXI FaceCompleteCroppedIMG5642.jpg|600px|align-cap=center|The prominent dark streak at the left quarter is forming a medial moraine.<br>This is seen as a mudflat at the water's surface. ([[Brüggen Glacier]], [[Patagonia]]).}}