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Mostrando ítems 31-40 de 84
Estudio de depósitos de tsunamis en la Laguna el Potosí, Petatlán Guerrero
(Universidad Michoacana de San Nicolás de Hidalgo, 2015-02)
In this paper are presented the results of studies of tsunami deposits through the analysis of four cores obtained in the el Potosi lagoon, located in Petatlan Guerrero. Two cores were obtained in the southwestern part of ...
Multi-proxy approach involving ultrahigh resolution mass spectrometry and self-organising maps to investigate the origin and quality of sedimentary organic matter across a subtropical reservoir
(2021-01-01)
Humic substances (HS) in sediments play an important role in carbon and nutrient biogeochemical cycles and fate of contaminants in the environment. However, information regarding HS quality and transformations that may ...
Millennial-scale climate cycles in Permian-Carboniferous rhythmites: Permanent feature throughout geologic time?
(GEOLOGICAL SOC AMER, INCBOULDER, 2012)
Two late Paleozoic glacial rhythmite successions from the Itarare Group (Parana Basin, Brazil) were examined for paleoclimate variations. Paleomagnetic (characteristic remanent magnetization, ChRM) and magnetic susceptibility ...
The effects of small-scale convection in the shallow lithosphere of the North Atlantic
(Wiley Blackwell Publishing, Inc, 2021-07)
Curie point depth can be used as a proxy for plate temperatures. Data from the North Atlantic (10°-50°N) are used here to determine if the observed oscillations and patterns in Curie depths could be a subproduct of small-scale ...
Coeficiente higroscópico y susceptibilidad magnética en la clasificación y cartografía de suelos de la Pampa Ondulada
(Asociación Argentina de la Ciencia del Suelo, 2022-11-15)
Se estudiaron cuatro perfiles de suelo localizados en una transecta en el predio perteneciente al INTA-CNIA, ubicado en el Partido de Hurlingham, en el área metropolitana de Buenos Aires. Los suelos aquí analizados, un ...
Generic Magnetic Field Intensity Profiles of Interplanetary Coronal Mass Ejections at Mercury, Venus, and Earth From Superposed Epoch Analyses
(American Geophysical Union, 2019-02)
We study interplanetary coronal mass ejections (ICMEs) measured by probes at different heliocentric distances (0.3–1 AU) to investigate the propagation of ICMEs in the inner heliosphere and determine how the generic features ...
Palaeolimnology of Lake Hess (Patagonia, Argentina): Multi-proxy analyses of short sediment cores
(Springer, 2009-09)
In contrast with the extensive palaeolimnological studies carried out in North America and Europe, relatively few studies have described the anthropogenic and/or climate impacts in Patagonian lakes. We addressed these ...
Tectonic evolution of the irra pull-apart basin evidences of slip reversals on the romeral fault zone, northern part of andean central cordillera, colombia
(Universidad Nacional de Colombia, 2012)
The Irra Basin is a small pull-apart basin at the south end of North Cauca basin located between the Cauca and Romeral fault system, near their northern convergence in the Colombian Andes. The Irra Basin developed in the ...
Tracking Solar Active Region Outflow Plasma from Its Source to the Near-Earth Environment
(Springer, 2014-10)
Seeking to establish whether active region upflow material contributes to the slow solar wind, we examine in detail the plasma upflows from Active Region (AR)10978, which crossed the Sun's disc in the interval 8 to 16 ...
Paleolimnological reconstruction of the centennial eutrophication processes in a sub-tropical South American reservoir
(Elsevier, 2020)
Reservoirs hold a detailed record of the changes in the input of sediments and nutrients over decades to centuries. Paleolimnological multi-proxy analysis makes it possible to reconstruct baseline conditions to infer early ...