Mountain Quiz Prep

Where are the closest mountains?

Just about 40 to 60 miles west of here. The closest point is in Pennsylvania

What is the name of the closest mountains to us?

The Appalachians

What type of mountains are the Appalachians?

Folded mountains

What caused these folded mountains to form?

When north America collided with Africa the rock that forms the Apalachians became folded and lifted

What type of plate boundary collision caused the mountains to form?

Continental/ Continental Convergent boundary

What causes the valleys and peaks that we presently see in the Appalachian Mountains?

Layers of soft rock erode faster than the layers of hard rock. Hard rock forms the peaks and soft rock forms the valleys

Explain isostacy

Because mountains are floating on the mantle, there is as much mountain below the crust as there is above the crust. As the mountain wears down, it floats higher on the mantle

What causes uplifted mountains to form?

The mantle pushes upward on the crust causing a section of the crust to rise up above the surrounding rock

Where can we find uplifted mountains?

The adirondacks in new York The Black Hills in South Dakota

When the crust is pushed up slightly and stretched, causing huge chunks of rock to drop down, what type of mountain is formed?

Fault Block Mountains

What causes the rock in fault block mountains to lift and stretch?

Currents in the mantle push up and apart

What type of energy transfer causes all mountains to form?

CONVECTION, by causing the mantle to flow

What type of mountains are the mountains in the great basin in Utah and Nevada?

Fault Block mountains

Why are folded mountains so long?

Because the rock folds along the whole plate boundary during the continental collision

What specialized type of mountains does Oceananic /Continental convergence cause

VOLCANOES

What type?

Fault Block Mountain

The faults are the up and down cracks where the rocks slid down

Where is the Block?

The Blocks are the giant slabs of rock that slid down