Browsing by Author "201-0247345"
Now showing items 1-13 of 13
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(Springer, 2013)A review of available stratigraphic, structural, and magmatic evolution in northernmost Chile, and adjacent Peru and Bolivia shows that in this region: (1) compression on the Paleogene intra-arc during the middle Eocene ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2008-12)Recent work in the central Andean Main Range of Chile near Laguna del Laja (similar to 37.5 degrees S, 71 degrees W) has produced the first mammal fossils for the region. Fossils, locally abundant and well preserved, occur ...
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(Elsevier, 2015)Cosmogenic nuclides in river sediment have been used to quantify catchment-mean erosion rates. Nevertheless, variable differences in Be-10 concentrations according to grain size have been reported. We analyzed these ...
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(2010-01)La evolución geológica cenozoica del sector central de la Cordillera Principal a ~35ºS, se encuentra íntimamente relacionada con la evolución de estructuras profundas, las cuales habrían controlado, en distintas etapas ...
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(Geological Soc Publ House, 2020)The scarce Eocene geological record in the Andean region of Central Chile (c. 33.6 degrees S) is represented by the Estratos del Cordon de los Ratones unit. This is a c. 450 m thick, mainly volcanic, continental series ...
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(Servicio Nacional de Geología y Minería, 2014)The current paper analyzes the evolution of the Abanico Basin, in the Chilean Principal Cordillera in central Chile (33º-35ºS). According to previous studies, the basin has been affected by two main deformational ...
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(Elsevier, 2020)Analogue sand-box experiments have been set up to illustrate and analyze the control exerted by lithological heterogeneities on the evolution of a model fold-and-thrust belt (FTB). The structural architecture within many ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2005-05)Few mammal fossils were known from the Altiplano or adjoining parts of northern Chile until recently. We report a partial mesotheriid palate from the vicinity of Caragua (Huaylas Formation) in northernmost Chile. The new ...
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(Servicio Nacional de Geología y Minería, 2014)Los intentos por diferenciar y correlacionar las unidades geológicas en la cordillera Principal Andina, entre 31°30’S y 33°S, se han enfrentado a numerosos obstáculos debido a la monotonía litológica de las potentes ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2005-05)The east-vergent Chucal thrust system, off the east side of the Chapiquina-Belen ridge in the Western Cordillera, was continuously or almost continuously active for - 18 m.y. (< 21 to > 2.7 Ma). Contractional activity ...
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(Elsevier, 2020)In central Chile (33 degrees 50'-34 degrees 30'S), the Quaternary arc records a distinctive episode of silicic volcanism (SiO2 >70 wt%) that occurred during latest Pleistocene (0.1-1 Ma). This episode is recorded in several ...
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(Elsevier, 2016)The Andean orogenic belt, located in the Central Andes "Pampean flat-slab" segment in northern Chile (27-29 degrees S), is composed of two major tectonic regions: the Coastal Cordillera and the Frontal Cordillera. To ...
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(AGU, 2020)We document the effects of major mid-Cretaceous to Late Cretaceous compression within the volcanic arc of the western Gondwanan margin. The thinned Early Cretaceous Andean margin underwent rapid thickening and shortening-related ...
