Results 31 to 40 of about 147,700 (210)
Metal content and distribution in surface sediments in an industrial region
Anais da Academia Brasileira de Ciências, 2014 The present study aimed to evaluate Cu, Cr, Ni, Zn, Pb, Mn, Al, and Fe contents, as well as their geochemical partitioning in Sinos River basin sediments in southern Brazil.
ISMAEL L. SCHNEIDER +3 more
doaj +1 more source
Environmental and climatic proxies for the Cañadón Asfalto and Neuquén basins (Patagonia, Argentina): review of middle to upper jurassic continental and near coastal sequences [PDF]
, 2015 In this review, we include several proxies (sedimentology, palynology, invertebrates) from the Cañadón Asfalto and Neuquén basins, to infer the environments and regional climatic context during the Middle to Late Jurassic of Patagonia.
Cabaleri, Nora Graciela +6 more
core +1 more source
Ecología Austral, 2015 El presente estudio describe la estructura de las asociaciones de poliquetos bentónicos del extremo sur de la Bahía de Samborombón, y su relación con los sedimentos, dos décadas después del último estudio realizado en la zona.
Pablo Denuncio +4 more
doaj +1 more source
Dating the Anthropocene in deep-sea sediments: a gamma spectrometric approach [PDF]
, 2017 1 poster presented at the International meeting of Sedimentology 2017 in Toulouse, France, from October 10th to 13thUtilizando muestras de sedimentos superficiales obtenidas durante la campaña OVIDE/BOCATS 2016 y una innovadora técnica para establecer ...
Álvarez-Fernández, María Jesús +7 more
core +4 more sources
SEDIMENTOS URBANOS: AMBIENTE E ÁGUA
Holos Environment, 2011 Os sedimentos urbanos são considerados, atualmente, como a maior fonte de poluição difusa para os corpos de água em áreas urbanas devido ao transporte de metais pesados e outros poluentes. Metais pesados são considerados potencialmente perigosos devido ao seu potencial tóxico e bio-acumulativo, ainda que em pequenas concentrações.
Cristiano Poleto +1 more
openaire +2 more sources
Monitoring mosaic biotopes in a marine conservation zone by autonomous underwater vehicle
Conservation Biology, Volume 33, Issue 5, Page 1174-1186, October 2019., 2019 Abstract The number of marine protected areas (MPAs) has increased dramatically in the last decade and poses a major logistic challenge for conservation practitioners in terms of spatial extent and the multiplicity of habitats and biotopes that now require assessment. Photographic assessment by autonomous underwater vehicle (AUV) enables the consistent
Noëlie M.A. Benoist +8 more
wiley +1 more source
Anais da Academia Brasileira de Ciências, 2016 A modified simplex algorithm was used to optimize a system of preconcentration for cadmium determination in samples of sediments, cigarettes and food using flame atomic absorption spectrometry.
QUEILA O. SANTOS +5 more
doaj +1 more source
Impacto del cambio de uso del suelo sobre los servicios ambientales y biodiversidad en una sub cuenca en el municipio de La Calera [PDF]
, 2017 Trabajo de InvestigaciónLa erosión y la retención de sedimentos terrestres constituyen procesos naturales que rigen la concentración de sedimentos en las fuentes de agua.
Molina-Forero, Diego Alfonso +1 more
core
Modelling in Science Education and Learning, 2017 El presente trabajo plantea el uso de la modelización para mejorar la comprensión de ciertos problemas ambientales del litoral. En concreto se incluye la base metodológica que se empleó para la construcción de un modelo consensuado de enseñanza que ...
Olga Mayoral García-Berlanga +1 more
doaj +1 more source
Ecological Monographs, Volume 94, Issue 3, August 2024.Abstract Peatlands store large amounts of carbon (C), a function potentially threatened by climate change. Peatlands composed of vascular cushion plants are widespread in the northern and central high Andes (páramo, wet and dry puna), but their C dynamics are hardly known.
Mary Carolina García Lino +6 more
wiley +1 more source