Question

These isolated boulders were carried in glacial ice and then left on the landscape once the ice melted. They are called.

Answer 1

Isolated boulders were carried in glacial ice and then left on the landscape once the ice melted. They are called erratics.

What are erratics?

Glacial erratics are rocks that have been deposited by glaciers yet are distinct from the surrounding rock type. Erratics—named for the Latin word erratics—are transported by glacial ice over vast distances, frequently of the order of hundreds of kilometers.

Rock fragments can be picked up by glaciers and carried over great distances. They are frequently far from the outcropping or rock from that they were extracted when they dump these rocks. Glacial erratics are the name given to these rocks. Erratics serve as a log of a glacier's journey.

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