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U-Pb and 40Ar/39Ar geochronology of the coastal Sonora batholith: New insights on Laramide continental arc magmatism

Abstract : The coastal Sonora batholith comprises a series of Cretaceous granitoids that intruded a metasedimentary basement of possible n the basis of new and available geochronologic, petrographic, and geochemical data, we propose that the Coastal Sonora batholith and the eastern portion of the Peninsular Ranges batholith belong to a single magmatic arc, which was separated during the continental breakup and rifting of the Gulf of California in the Tertiary.
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Submitted on : Friday, August 29, 2008 - 10:14:34 AM
Last modification on : Friday, July 26, 2019 - 1:44:04 PM

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Ernesto Ramos-Velázquez, Thierry Calmus, Victor Valencia, Alexander Iriondo, Martín Valencia-Moreno, et al.. U-Pb and 40Ar/39Ar geochronology of the coastal Sonora batholith: New insights on Laramide continental arc magmatism. Revista Mexicana de Ciencias Geológicas, Universidad Nacional Autonoma de Mexico, 2008, 25 (2), pp.314-333. ⟨insu-00315592⟩

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