A granitic laccolith that formed 5 miles below the surface of the Earth has been

Question

A granitic laccolith that formed 5 miles below the surface of the Earth has been uplifted by tectonic forces and now is exposed at the surface. The granitic rock of the laccolith is beginning to weather and has produced a series of cracks that are parallel to the surface. What is the cause of these cracks?

gradient jointing

hydraulic fracturing

A process called concentric weathering

The process of unloading

gradient jointing

hydraulic fracturing

A process called concentric weathering

The process of unloading

Explanation / Answer

The granitic rock of the laccolith is beginning to weather and has produced a series of cracks that are parallel to the surface. The process of unloading is the cause of these cracks

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