Browsing FIng - Artículos de Revista by Title
Now showing items 48-56 of 56
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The mechanical waves conceptual survey: An analysis of university students' performance, and recommendations for instruction
(EURASIA, 2016-12)The Mechanical Waves Conceptual Survey (MWCS), presented in 2009, is the most important test to date that has been designed to evaluate university students' understanding of four main topics: propagation, superposition, ... -
The Upper Jurassic volcanism of the Río Damas-Tordillo Formation (33°- 35.5°S): Insights on petrogenesis, chronology, provenance and tectonic implications
(Servicio Nacional de Geología y Minería, 2014)ABSTRACT. The uppermost Jurassic continental and volcanic deposits of the Río Damas-Tordillo Formation represent an interval of intense continental deposition within the Jurassic to Early Cretaceous dominantly marine ... -
Thermal stability of the cu-ceo2 interface on silica and alumina, and its relation with activity in the oxidation reaction of co and the decomposition of n2o
(Sociedad Chilena de Quimica, 2018)The effect of the support on the formation of the Cu-CeO2 interface and its thermal stability after calcination at 500, 700 and 900 °C is studied. The supports used are SiO2, because of its inert character, and Al2O3, ... -
Time evolution of MX-80 bentonite geochemistry under thermo-hydraulic gradients
(MINERALOGICAL SOC, 2016-05)Two 20-cm long columns of MX-80 bentonite compacted at a nominal dry density of 1.7 g/cm(3) with a water content of 17% were tested in thermo-hydraulic (TH) cells with the aim of simulating the conditions of a sealing ... -
Timing of the magmatism of the paleo-Pacific border of Gondwana: U-Pb geochronology of Late Paleozoic to Early Mesozoic igneous rocks of the north Chilean Andes between 20° and 31°S
(Servicio Nacional de Geología y Minería, 2014)ABSTRACT. U-Pb zircon geochronological data provide record of about 130 Ma of igneous activity in the Andes of northern Chile, which extended episodically from the latest Early Carboniferous to Early Jurassic (328-194 Ma). ... -
U-Pb Geochronology and Hf-O Isotopes of zircons from the Pennsylvanian Coastal Batholith, South-Central Chile
(Servicio Nacional de Geología y Minería, 2014)ABSTRACT. The Coastal Batholith of south-central Chile between latitudes 33° and 40°S is composed of calc-alkaline granitoids emplaced in a relatively restricted time period. New SHRIMP U-Pb zircon ages on eight quartzdioritic ... -
Ultramafic rocks in the North Patagonian Andes: is their emplacement associated with the Neogene tectonics of the Liquiñe–Ofqui Fault Zone?
(Servicio Nacional de Geologia y Mineria, 2017-01)Serpentinites and fresh or partially serpentinized harzburgite crop out in the western slope of the North Patagonian Andes of continental Chiloé (41°44’-42°12’S). These rocks are spatially associated with low-grade metamorphic ... -
USO DE BIOSÓLIDOS COMO REACTIVO ESPUMANTE EN PROCESOS DE FLOTACIÓN: CARACTERIZACIÓN FÍSICA Y QUÍMICA
(Universidad Nacional de Colombia, 2011)RESUMEN: La flotación espumosa usa diversos reactivos, orgánicos e inorgánicos, para aumentar el rendimiento y selectividad del proceso. La flotación utiliza sustancias tensoactivas que se adsorben en la interfase aire/agua. ... -
Wave Equation Datuming Applied to Seismic Data in Shallow Water Environment and Post-Critical Water Bottom Reflection
(MDPI AG, 2017)Coastal areas are generally characterized by human manufacturing; thus, seismic data analysis is necessary to characterize the properties of the subsoil, the main purpose of which is to clarify risk situations. In the case ...
