Vol. 12 No. 1 (1995)

Published May 23, 2019

Regular Papers

Internal structure of the Oaxaca fault (Mexico) and the influence of its lithologic anisotropies during its Cenozoic activity

Ángel Francisco Nieto-Samaniego, Susana Alicia Alaniz-Álvarez, Fernando Ortega-Gutiérrez

1-8

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

Olivier Monod, Efrén Pérez-Segura, Didier Richard, Thierry Calmus

9-16

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Amealco tuff and its correlation with the Las Américas Formation through the Acambay graben, states of Mexico, Michoacán and Querétaro, Mexico

Gerardo J. Aguirre-Díaz

17-21

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Stratigraphv and structure of the Volcán de Colima, Mexico

Sergio R. R. Rodríguez-Elizarrarás

22-46

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Preliminary considerations on risk in the Volcán de Colima, Mexico

Sergio R. Rodríguez-Elizarrarás

47-51

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Relief, lithology and risks in the urban zone of the Delegación Álvaro Obregón, Distrito Federal, Mexico

José Lugo-Hubp, Maricarmen Cordero-Estrada, José Juan Zamorano-Orozco

52-67

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Laurozamites, a new genus and new species of bennettitalean leaves from the Late Triassic of North America

Reinhard Weber, Graciela Zamudio-Varela

68-93

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A new species of Scoresbya Harris and Sonoraphyllum gen. nov. (Plantae incertae sedis) from the Late Triassic of Sonora, Mexico

Reinhard Weber

94-107

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SHORT NOTE - World’s deepest karst hydrologic system documented in Sierra de Juárez, Oaxaca, Mexico

Louise D. Hose

108-111

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SHORT NOTE - Taxonomic note on the variability of Neobuccella babsae in Holocene sediments of Baja Califomia Sur, Mexico

Ana Luisa Carreño

112-116

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