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OF-96-04-21 Jemez Volcanic Field and Valles Caldera — Middle Rio Grande Rift

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Field trip no. 21 from “Geologic Excursions to the Rocky Mountains and Beyond,” field trip guidebook of the 1996 Annual Meeting of the Geological Society of America. Jemez Volcanic Field and Valles Caldera-Middle Rio Grande Rift. (SP-44 has the complete set.) 16 pages. Digital PDF download. OF-96-04-21D

The intent of this 3 day field trip is to provide an overview of volcanism of the Quaternary Valles caldera and the adjacent Pliocene Cerros del Rio volcanic field and to focus on new geologic, geochemical and geochronologic data related to the evolution of both.