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Author Question: What are dropstones, and what do they indicate? What will be an ideal ... (Read 33 times)

nelaaney

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on: Jul 15, 2018
What are dropstones, and what do they indicate? What will be an ideal response?

Question 2

How does a terminal moraine differ from a recessional moraine? What will be an ideal response?


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tanna.moeller

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Reply #1 on: Jul 15, 2018
Answer to Question 1

Dropstones are gravel- to boulder-sized rocks found in otherwise fine-grained glacial lake deposits.
They indicate transport of the rocks into the lake by icebergs that eventually melted, releasing the
coarser sediment



Answer to Question 2

The terminal moraine marks the farthest limit of the ice advance; the recessional moraine marks the
position of the ice during a period of retreat



nelaaney

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Reply 2 on: Jul 15, 2018
Thanks for the timely response, appreciate it

at

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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