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Unformatted text preview: believed to be the center of the hotspot of Yellowstone. From the geological data found in this study, it is found that a deep-mantle origin is not required by the helium isotope data. The deep-mantle plume theory suggests wrongly that the tectonic relationships of the Yellowstone hotspot are by coincidence. This journal suggests that the features recognized in a Yellowstone hotspot are essential components of regional upper-mantle tectonics of the northwestern United States. In other words, partial melting of the upper mantle, emplacement of the resulting mantle melting into the crust, consequential crustal melting, and voluminous surface eruption have molded Yellowstone into the park it is today. I found this journal article interesting because it explains different theories and why one is wrong and the other right. It backs the correct theory up with plentiful data and models. It was interesting to view the models and to actually envision what the theory is suggesting....
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- Fall '07