Vol. 13 No. 1 (1996)

Published May 23, 2019

Regular Papers

Late Jurassic and mid-Teritiary brittle-ductile deformation in the Opodepe region, Sonora, Mexico

José Luis Rodríguez-Castañeda

1-9

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Volcanic stratigraphy of the Amealco caldera and vicinity, central Mexican Volcanic Belt

Gerardo J. Aguirre-Díaz

10-51

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Explosive volcanism north and west from the city, of Tula, State of Hidalgo, Mexico

Luis Silva-Mora, Diego A. Córdoba

52-64

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Geology, mineralization, hydrotherinal alteration asid age of the San Francisco gold deposit, Sonoraa mesothermal ore deposit in northwestern Mexico

Efrén Pérez-Segura, Alain Cheilletz, Saúl Herrera-Urbina, Y. J. Hanes

65-89

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The Arizpe mammoth, Pleistocene of Sonora, Mexico-Taxonomic re-evaluation

Spencer G. Lucas, Carlos Manuel González-León

90-93

Palygorskite in Eocene-Oligocene lagoonal environment, Yucatán, Mexico

Liberto de Pablo-Galán

94-103

Development of soils and site qualities on basic volcanoclastics with special reference to the semiarid environment of Lanzarote, Canary Islands, Spain

Reinhold Jahn, Karl Stahr

104-112

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SHORT NOTE -Uranium, thorium and potassium contents and heat production in the Río Verde batholith, southem Oaxaca, Mexico-preliminary study

Jaime Urrutia-Fucugauchi, María del Sol Hernández-Bernal, Trevor Lewis, Svet Yu. Milanovsky

113-116

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SHORT NOTE - New isotopic ages of the Cenozoic volcanic cover of the southern Central Plateau, Mexico

Ángel Francisco Nieto-Samaniego, Consuelo Macías-Romo, Susana Alicia Alaniz-Álvarez

117-122

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SHORT NOTE - New locality of the Matzitzi Forniation in the Calapa river, in the boundary area between Oaxaca and Puebla states, Mexico

Mauro Velasco-Hernández, Mario R. Lucero-Arellano

123-127

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