Orbicular granite sills in the Mazatán core complex, Sonora, Mexico
Vol. 12 No. 1 (1995), Regular Papers
Vol. 12 No. 1 (1995)

Orbicular granite sills in the Mazatán core complex, Sonora, Mexico

Regular Papers
Published 2019-01-27
Olivier Monod
Laboratoire de Géologie Structurale, Université d'Orléans, 41002 Orlèans, France.
Efrén Pérez-Segura
Departamento de Geología, Universidad de Sonora, 83000 Hermosillo, Sonora, México.
Didier Richard
Laboratoire de Géologie Historique et Structurale, Bat 504, Université de Paris Sud, 91405 Orsay, France.
Thierry Calmus
Departamento de Geología, Universidad de Sonora, 83000 Hermosillo, Sonora, México.
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Keywords

Orbicular granite, orbicular texture, metamorphic core complex, Sonora, Mexico.

How to Cite

Monod, O., Pérez-Segura, E., Richard, D., & Calmus, T. (2019). Orbicular granite sills in the Mazatán core complex, Sonora, Mexico. Revista Mexicana De Ciencias Geológicas, 12(1), 9–16. Retrieved from https://rmcg.unam.mx/index.php/rmcg/article/view/1169
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Abstract

Orbicular granites are unusual rocks, and the presence of a large outcrop within the Mazatán metamor­phic core complex, Sonora, Mexico, was unexpected. This is the second orbicular rock outcrop recognized in Mexico, after the San Pedro Mártir gabbro in Baja California. Sierra Mazatán is the southernmost metamorphic core complex in the northern Cordillera, which resulted of Mesozoic crustal thickening, followed by Tertiary extensional tectonics… in order to continue, download the full paper in PDF.

 

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