Monday 10 May 2021

Rising mountain chains - isostasy

“Hooray and up she rises!” * How a rising mountain chain can reveal its hidden secrets   ( * from the Drunken Sailor sea shanty)

The activity is aimed at reinforcing the concept of isostasy (a state of balance in the Earth’s outer layers). It is also intended to show that many igneous rocks become exposed at the Earth’s surface long after they have become solid rocks and are no longer flowing as magma. 

This activity would have more meaning if preceded by Earthlearningideas:

Isostasy 1: modelling the state of ‘balance’ of the Earth’s outer layers, and Isostasy - 2 “Bouncing back” after the ice.

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