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Author Question: Explain how icebergs are used as analogies for surface elevations. What will be an ideal ... (Read 74 times)

sabina

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on: Jul 16, 2018
Explain how icebergs are used as analogies for surface elevations.
 
  What will be an ideal response?

Question 2

What is the principle of isostasy?
 
  What will be an ideal response?


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Meganchabluk

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Ice (and crust) floats because it is lower density than water (mantle). It is mostly submerged though, because it is lower-density material. If you change the mass, you change the position of the blocks in the water.

Answer to Question 2

The pressure is everywhere the same at the base of any thick column of rock through the crust and upper mantle. It explains variations in Earth's surface elevations in terms of the type and thickness of underlying crust.


sabina

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Reply 2 on: Jul 16, 2018
:D TYSM

jackie

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Reply 3 on: Yesterday
Excellent

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