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José P. Vega-Camarena, Luis Brito-Castillo, Luis F. Pineda-Martínez and Luis M. Farfán
In the warm season, El Niño/Southern Oscillation (ENSO) causes periods with more rain in Northern Mexico during its positive phase, while less rainfall is recorded in the southern regions during the negative phase. This research study evaluates the varia...
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Marcelo García,Germán Aguilar,María Pía Rodríguez,James Metcalf
Pág. 313 - 326
In the Western Cordillera of northern Chile, the Proterozoic-Paleozoic Belén Metamorphic Complex is covered by late Oligocene-early Miocene (25-18 Ma) rocks, and both units are involved in west-vergent contractional deformation, which results in exhumati...
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Sebastian Herrera, Luisa Pinto, Katja Deckart, Javier Cortés, Javier Valenzuela
Pág. 87 - 122
Crustal thickening by horizontal shortening and associated deformation have been broadly considered as
prime mechanisms for mountain building in the Central Andes of western South America. However, timing and structural
style of Andean orogeny in norther...
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Luisa Pinto,Gerard Herail,Reynaldo Charrier
Pág. 19 - 44
In northern Chile (18-20°S), the western border of the high Andean Plateau (Altiplano) was uplifted by high-angle thrust faults and associated folds. These developed along the Precordillera, which is the morphostructural unit that connects the Andean Pla...
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Andres Tassara,Gonzalo Yanez
Pág. 159 - 186
Using a flexural analysis of the correlation between relief and gravity, the factors that control the Andean segmentation (15-47°S) and the orogenic process are investigated. As a framework for this analysis, the following segmentation is proposed; the f...
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Marcelo Garcia,Gerard Herail
Pág. 127 - 130
presented new and important geochronologic data on the Cenozoic magmatic rocks of northern Chile, and proposed magmatic and tectonic interpretations for them. Here we comment on one of their interpretations about the Miocene tectonic evolution of the Pre...
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Gerhard Wörner,Konrad Hammerschmidt,Friedhelm Henjes-Kunst,Judith Lezaun,Hans Wilke
Pág. 205 - 240
K-Ar and Ar/Ar ages from magmatic rocks of northern Chile (18-22°S) describe duration and extent of the Tertiary and Quaternary magmatic evolution and date major tectonic events in northernmost Chile. This paper summarizes new K-Ar and Ar-Ar mineral and ...
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Steven F. Olson
Pág. 3 - 29
ABSTRACT. The Potrerillos district displays major facies boundaries, records changes in the compositions of magmas from Jurassic to Oligocene time, and provides evidence that a porphyry copper deposit and associated skarn (37 Ma) formed between Jurassic-...
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