Tuesday, October 8, 2013

Metamorphic Rock Examples

As I pointed out with Igneous Rocks and Sedimentary Rocks, we are lucky to have easily accessible examples of all three kinds of rocks in our nearby canyons, so using this guide, we spent a day driving around and looking at these examples. We saw the metamorphic rocks quartzite and marble in Big Cottonwood Canyon.
The vertical layers in this quartzite are amazing. So linear and sheet-like!

This is lovely white marble from the Mississippian Period. We learned from an informational sign that because of the hardness and durability of this rock, this site (with marble on both sides of the road) has been considered for a dam in Big Cottonwood Canyon.

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