Vol 18, No 1 (1991)

Vol 18, No 1 (1991)

Geological Note

Table of Contents

La estructura profunda entre Precordillera y Sierras Pampeanas de la Argentina: evidencias de la sismica de reflexion profunda

Alberto H. Cominguez, Victor A. Ramos

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3-14

Isotopic composition of Late Jurassic and Early Cretaceous mafic igneous rocks from the southernmost Andes: impllcations for Sub-Andean mantle

Charles R. Stern

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15-23

Descripcion de dos nuevas especies de Pacitrigonia Marwick y Austrotrigonia Skwarko (Trigoniidae; Bivalvia) en el Cretacico Superior del occidente de la Provincia de La Pampa, Argentina

Hector A. Leanza, Silvio Casadio

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25-35

Epithermal silver-gold minerallzation at the Esperanza area, Maricunga Belt, High Andes of northern Chile

Tomas Vila G.

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37-54

Magmatismo bimodal del Triasico Superior-Jurasico Inferior, en la Cordillera de la Costa, Provincias de Elqui y Llmari, Chile

Paulina Gana F.

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55-67

Actividad explosiva postglacial en el volcan Llaima, Andes del Sur (38°45'S)

Jose A. Naranjo, Hugo Moreno

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69-80

Geological Note

Geochronology of marine terraces at Caleta Michilla, northern Chile; impllcations for Late Pleistocene and Holocene uplift

Erick M. Leonard, John F. Wehmiller

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81-86

Likely occurrence of a mega-tsunami in the Middle Pleistocene, near Coquimbo, Chile

Roland Paskoff

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87-91

Andean Geology, ISSN: 0718-7106

Journal Edited by Servicio Nacional de Geología y Minería
Chilean Government

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