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Autor:
Mare J. Defant, René C. Maury, Juan F. Restrepo, Jelle Zeilinga de Boer, Lee F. Clark, Hervé Bellon, Thomas E. Jackson, Mark S. Drummond, Robert H. Stewart
Publikováno v:
Contributions to Mineralogy and Petrology. 106:309-324
The easternmost stratovolcano along the Central American arc is El Valle volcano, Panama. Several andesitic and dacitic lava flows, which range in age 5–10 Ma, are termed the old group. After a long period of quiescence (approximately 3.4 Ma), volc