Fold Mountains Flashcards
What are fold mountains?
A product of layers of rock that have been crumpled and forced together, they are formed at collision plate boundaries
What’s the distribution of fold mountains?
Uneven
Linear patterns- west coast of South America (Andes)
Other parts have none- Austrailia
How are they formed?
Rivers carried sediment to ancient seas which where deposited in huge depressions
Over millions of years sediment compressed- sedimentary rock
As two continental plates move towards eachother they push the layers of sediment into folds as the plates buckle as neither can be destroyed
Continue to grow upwards as plates constantly move towards eachother
What’s an anticline?
An upfold in the rock
What’s a syncline?
A down fold in the rock strater
What’s an overfold?
When rock in an anticline go over the top of themselves
More pressure is exerted from one plate than another
What can humans use fold mountains for?
Farming- animals higher up, crops further down
Mining- metal ores
Tourism- skiing, hiking, roads built, tunnels
Hydro-Electric Power- lakes make it ideal
Forestry- conifers for fuel, burning material, furniture etc
