Browsing by Author "Vargas Easton, Víctor"
Now showing items 1-20 of 47
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(PERGAMON-ELSEVIER SCIENCE LTD, 2008-10)Marine oxygen-deficient environments with high sedimentation rates and high primary productivity can provide relevant information regarding variations of ocean–climatic conditions in the past. In the Humboldt current ...
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(John Wiley & Sons, 2001)As previously observed in marine sediments collected downwind of African or South American continental sources, recent studies of sediment cores collected at the bottom of Mejillones Bay in north Chile (23°S) show a ...
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(Elsevier, 2015)Upwelling areas play a major role in ocean biogeochemical cycles and ultimately in global climate, especially in higly productive regions as the South Eastern Pacific. This work is based on the analysis of the aeolian ...
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(Universidad de Chile, 2014)Bajo la presión del megaterremoto del Maule en febrero de 2010, los centros de estudio chilenos debieron enfrentar una emergencia adicional, consistente en el procesamiento de terabits de datos tomados con posterioridad ...
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(Universidad de Chile, 2012)Un rasgo geomorfológico destacado del litoral occidental de Sudamérica corresponde a la presencia de cuencas de edad cretácica tardía-neógena distribuidas entre los 4°S y 47°S con características estructurales y sedimentarias ...
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(2011-12)Se presentan los resultados del análisis tafonómico del sitio GNLQ1 (32º S – 71º O, Chile) descubierto a 13 m de profundidad bajo el mar. El sitio corresponde a un contexto primario conformado por una serie de restos ...
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(Geological Society of America, 2014)The giant nitrate deposits of the hyperarid Atacama Desert (Chile) are one of the most extraordinary, yet enigmatic, mineral occurrences on Earth. These deposits are complex assemblages of highly soluble nitrates, ...
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(American Geophysical Union, 2011-04-14)We reconstructed a high‐resolution, alkenone‐based sea surface temperature (SST) record spanning the last ca. 150 years, from a sediment core retrieved within the main upwelling zone off Peru. A conspicuous SST decline ...
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(2011-01)On February 27, 2010 at 03:34:08 AM an Mw8.8 earthquake, with epicenter located off Cobquecura (73.24°W; 36.29°S), severely hit Central Chile. The tsunami waves that followed this event affected the coastal regions between ...
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(2011-01)On February 27, 2010 at 03:34:08 AM an Mw8.8 earthquake, with epicenter located off Cobquecura (73.24°W; 36.29°S), severely hit Central Chile. The tsunami waves that followed this event affected the coastal regions between ...
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(Universidad de Chile, 2011)Resultados presentados recientemente, que se incluyen en esta tesis (Armijo, R., R. Rauld, R. Thiele, G. Vargas, J. Campos, R. Lacassin, and E. Kausel (2010), The West Andean Thrust (WAT), the San Ramón Fault and the seismic ...
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(Universidad de Chile, 2012)El arco volcánico andino incluye más de 200 estratovolcanes y al menos 12 sistemas de calderas gigantes potencialmente activos y, en la actualidad, no existe un método estándar para determinar las reservas geotermales ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2005-12)A suite of 36 surface sediment samples, taken between 10 and 100 in water depth in Mejillones Bay (Northern Chile), were analyzed for mineralogy, grain size, total organic carbon, Al, and heavy metal content (Cd, Zn, Ni, ...
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(2007)Secular trends in coastal upwelling proxies from a sediment record at 23 degrees S encompassing 250 years reveal two distinct stages separated by a transition period between AD 1820 and 1878. Persistent interdecadal ...
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(Elsevier, 2015)This work presents the results of a regional-scale estimation of low-enthalpy geothermal resources for district heating in the Santiago basin. The purpose of this work is to identify promising areas for the development of ...
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(Universidad de ChilePrograma Cybertesis, 2008)
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(Universidad de Chile, 2009)Las evaporitas superiores del Salar de Atacama, presentan un registro de los últimos 100 m.a. aproximadamente en los primeros 100 m a una tasa de depositación de 1 m/ma. A través del estudio de su composición litológica y ...
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(Universidad de Chile, 2013)En el presente trabajo se identificaron y analizaron unidades morfoestratigráficas de origen glaciar, las que se ubican en el borde occidental del Altiplano entre 19º10 S y 19º45 S. Esto con el objetivo de dar una ...
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(Universidad de Chile, 2019)La influencia de estructuras heredadas de la cuenca Neuquina en la evolución neógena de los Andes de Chile central justo al sur del segmento de subducción plana, ha sido propuesta anteriormente, pero sin evidencias concretas ...
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(Elsevier Ltd and INQUA, 2013-08-14)Site GNL Quintero 1 (GNLQ1), located in Quintero Bay (32 S, Central Chile) constitutes the first evidence of a drowned terrestrial site on the continental West Coast of South America covered by sea-level rise after the ...
