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Chapter 17: Problem 13

What are some common depositional features encountered in a till plain?

Short Answer

Expert verified
Common depositional features in till plains include Terminal Moraines, Ground Moraines, Drumlin Fields, Glacial Erratics, and Glacially Disrupted Topography.

Step by step solution

01

Understanding the Concept of Till Plains

Till plains are flat or gently sloping areas covered by unsorted glacial deposits called till. Being a geological feature, it is crucial to note that till plains mostly occur in regions previously covered by glaciers.
02

Identify Common Depositional Features

Some of the common depositional features encountered in a till plain include the following: Terminal Moraines, Ground Moraines, Drumlin Fields, Glacial Erratics and Glacially Disrupted Topography.
03

Defining the Identified Depositional Features

Terminal Moraines are elongated ridges of till deposited at the snout of a glacier. Ground Moraines refer to the rolling, uneven terrain left by a retreating glacier. Drumlin fields are oval-shaped mounds that typically form in swarms on till plain landscapes. Glacial Erratics are large boulders transported and deposited by glaciers far from their origin. Glacially Disrupted Topography covers regions where glaciation disrupted the prior landscape, creating a chaotic mix of hills and depressions.

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