Volumen 32 Número 1
Volume 32 Number 1
(1969)

Portada / Frontcover 

Chronostratigraphic Analisis and the Time Surface

Wengerd SA

http://dx.doi.org/10.18268/BSGM1969v32n1a1

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Rocas paleozoicas marinas de México

Ernesto López Ramos

http://dx.doi.org/10.18268/BSGM1969v32n1a2

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Petrology and Geochemistry of Modern Detritus Derived From a Rhyolitic Terrain, Western Chihuahua, México

Webb WM, Potter PE

http://dx.doi.org/10.18268/BSGM1969v32n1a3

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Crustal and Upper Mantle Structure in the Region of the Gulf of Mexico

Hales AL

http://dx.doi.org/10.18268/BSGM1969v32n1a4

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A Propósito de la edad de las rocas de las Colinas de Samalayuca, Noreste de Chihuahua

Ernesto  López Ramos E

http://dx.doi.org/10.18268/BSGM1969v32n1a5

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Tercer Simposio Internacional de Gondwana

http://dx.doi.org/10.18268/BSGM1969v32n1x1

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