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Earth Sciences 22 Online
OpenStudy (helpkay):

I know this is a hard question but i really need help and I'm not getting the answer I'm looking for what type Metamorphic are found in Yellowstone

OpenStudy (helpkay):

OpenStudy (anonymous):

The oldest rock in Yellowstone National Park is Precambrian in age, over 500 million years old. You can find some granites, but thanks to the multiple episodes of mountain building that begat the Rocky Mountains, a lot of these have been metamorphosed into gneisses and schists1. During the Palaeozoic Era (500 - 235 million years ago), Yellowstone National Park and most of the rest of the Western United States lay beneath or on the edge of a shallow sea. During this time, many of the sedimentary rocks of Yellowstone were deposited, most of them limestone, sandstone, and shale. The Mesozoic Era (235-65 million years ago) generally brought about more terrestrial environments, http://h2g2.com/approved_entry/A3740474 research done

OpenStudy (helpkay):

that my problem everyone keep given website to Yellowstone but i need the rocks in the image

OpenStudy (anonymous):

apolagies

OpenStudy (helpkay):

np you tried to help that's what counts

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