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The Formation of Granite

This type of rock is called White Tank Granite. It is an igneous rock which formed when hot magma or liquid rock was pushed up from deep within the Earth and forced into the overlying rock in a process known as intrusion. It then cooled and hardened and later became exposed as the rock we see today. Geologists believe that the White Tank Granite was intruded into the overlying rock about 135-155 million years ago.


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Arch Rock Geology Tour
The Formation of Granite
Mineralogy
The Contact Zone
Water At Work
The Arch
Disappearing Soil
Dikes
Sculpted Rocks
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