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RT @AZGeology: #USGS field guide to the rocks and geology of the Yellowstone Plateau, Wyoming; includes dozens of maps and photos. #Volcano…
RT @AZGeology: #USGS field guide to the rocks and geology of the Yellowstone Plateau, Wyoming; includes dozens of maps and photos. #Volcano…
#USGS field guide to the rocks and geology of the Yellowstone Plateau, Wyoming; includes dozens of maps and photos. #Volcano #Caldera https://t.co/jcbzURLQ5Y https://t.co/WrCh24HfRy
Field trip guide to the petrology of Quaternary volcanism on the Yellowstone Plateau https://t.co/fSFKrXnvcf https://t.co/0a7ZTXqNP5