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El Capitan
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Permian
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| The West Texas area, during the Permian was a large coral reef
structure. The diversity of organisms is similar to the organisms living
in the Great Barrier Reef in Australia. The ocean to the west invaded
the area and arched through the Gulf Coast states including parts of
Mexico. Reefs are considered very productive zones. Slowly as conditions
changed, the limestones were the perfect source rocks and the sandstones
were the perfect reservoir rocks. This area is still producing oil
today. |
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Rock types of the Permian reef |
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