Why are moraines found on the northern islands of Tierra del Fuego?

Moraines are piles or ridges of sediment—such as soil, gravel, and rocks—that glaciers carry and deposit as they move or melt. Therefore, the moraines on the northern islands of Tierra del Fuego formed when glaciers deposited soil and rocks there. Longshore drift moves coastal sediment, but it does not create glacial moraines.

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