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Table of Contents - Field Guide 25

The Southern Cordillera and Beyond

edited by José Jorge Aranda-Gómez, Gustavo Tolson, and Roberto S. Molina-Garza

Preface		v
1.	Sierra de Catorce: Remnants of the ancient western equatorial margin of Pangea in central Mexico José Rafael Barboza-Gudiño, Roberto S. Molina-Garza, and Timothy F. Lawton	1
2.	The Late Cretaceous fold-thrust belt in the Peña de Bernal–Tamazunchale area and its possible relationship to the accretion of the Guerrero Terrane Michelangelo Martini, Elisa Fitz, Luigi Solari, Antoni Camprubi, Peter J. Hudleston, Timothy F. Lawton, Gustavo Tolson, and Elena Centeno-García	19
3.	Field guide for the historical mining site of Mineral de Pozos, Guanajuato, east-central Mexico Alejandro Carrillo-Chávez, Gilles Levresse, and Juventino Martínez Reyes	39
4.	Late Pleistocene rhyolitic explosive volcanism at Los Azufres Volcanic Field, central Mexico José Luis Arce, José Luis Macías, Elizabeth Rangel, Paul Layer, Víctor Hugo Garduño-Monroy, Ricardo Saucedo, Felipe García, Renato Castro, and Héctor Pérez-Esquivias	45
5.	Recent explosive volcanism at the eastern Trans-Mexican Volcanic Belt G. Carrasco-Núñez, P. Dávila-Harris, N.R. Riggs, M.H. Ort, B.W. Zimmer, C.P. Willcox, and M.J. Branney	83
6.	Engineering geology approach to the effects of land subsidence in Mexico City Mariano Cerca, Dora Carreón-Freyre, Penélope López-Quiroz, Efraín Ovando-Shelley, Marie Pierre Doin, Raúl Gutierrez-Calderón, Marcos González-Hernández, Alejandra Jimenez-Sánchez, and Daniel Blancas-Dominguez	115
7.	Geology and tectonics of the southeastern portion of the Sierra de Guanajuato José Jorge Aranda-Gómez, Pablo Dávila-Harris, Luis Fernando Vassallo-Morales, Martha Godchaux, Bill Bonnichsen, Juventino Martínez-Reyes, Gerardo de Jesús Aguirre-Díaz, and Maria Amabel Ortega-Rivera	135
8.	Geology and geochronology of Tlaloc, Telapón, Iztaccíhuatl, and Popocatépetl volcanoes, Sierra Nevada, Central Mexico J.L. Macías, J.L. Arce, F. García-Tenorio, P.W. Layer, H. Rueda, G. Reyes-Agustin, F. López-Pizaña, and D. Avellán	163