Artículo
South African dust contribution to the high southern latitudes and East Antarctica during interglacial stages
Gili, Stefania
; Vanderstraeten, Aubry; Chaput, Amélie; King, James; Gaiero, Diego Marcelo
; Delmonte, Barbara; Vallelonga, Paul; Formenti, Paola; Di Biagio, Claudia; Cazanau, Mathieu; Pangui, Edouard; Doussin, Jean François; Mattielli, Nadine
Fecha de publicación:
06/2022
Editorial:
Nature
Revista:
Communications Earth and Environment
ISSN:
2662-4435
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Mineral dust is a natural tracer of atmospheric composition and climate variability. Yet, there is still much to be known about the Southern Hemisphere dust cycle. Major efforts have attempted to solve the puzzle of the origin of the potential source areas contributing dust to the Southern Ocean and East Antarctica. Here we present a comprehensive geochemical characterization of a source area, whose role as a dust supplier to high latitude environments has significantly been underestimated. Sediments collected within the major dust-producing areas along the Namibian coast in Southern Africa (Kuiseb, Omaruru and Huab river catchments and the Namib Sand Sea region), were analyzed for radiogenic isotope ratios and rare earth element concentrations. We find that during warm periods, the Southern African dust signature can be found in archives of the Southern Hemisphere, especially in the Atlantic sector of the Southern Ocean and peripheral areas of the East Antarctic plateau.
Palabras clave:
sudáfrica
,
dust
,
Antartida
,
Southern Ocean
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CICTERRA)
Articulos de CENTRO DE INVEST.EN CS.DE LA TIERRA
Articulos de CENTRO DE INVEST.EN CS.DE LA TIERRA
Citación
Gili, Stefania; Vanderstraeten, Aubry; Chaput, Amélie; King, James; Gaiero, Diego Marcelo; et al.; South African dust contribution to the high southern latitudes and East Antarctica during interglacial stages; Nature; Communications Earth and Environment; 3; 1; 6-2022; 1-12
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