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Defining the chemical character of aerosols from the atmosphere of the mediterranean-sea and surrounding regions ArchiMer
Chester, R; Nimmo, M; Alarcon, M; Saydam, C; Murphy, Kjt; Sanders, Gs; Corcoran, P.
Atmospherically-transported trace metals can play an important role in biogeochemical cycles in the Mediterranean Sea. However, although the magnitude of trace metal air to sea fluxes is initially dependent on the metal concentrations in the air, it is the ''chemical character'' of the aerosol which constrains the fate of the metals in sea water; for example, the solubility of trace metals is considerably greater from anthropogenic than from crustal components. To a first approximation the chemical composition of the Mediterranean particulate aerosol is controlled by the extent to which an anthropogenic-rich ''background'' material, having a mainly European origin, is perturbed by mixing with crustal components having a desert origin. These perturbations...
Tipo: Text Palavras-chave: MEDITERRANEAN ATMOSPHERE; AEROSOLS; TRACE METALS; EUROPEAN BACKGROUND; SAHARAN DUST.
Ano: 1993 URL: http://archimer.ifremer.fr/doc/00099/21051/18677.pdf
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The use of mineral magnetic measurements to study the transport and sedimentation of particles in the Gulf of Lions (NW mediterranean) ArchiMer
Scoullos, Mj; Zeri, C.
Mineral magnetic and chemical studies indicate the impact and great importance of atmospheric versus riverine input of particles in the sediments of the Gulf of Lions and provide some strong indications about the presence of anthropogenic particles in offshore deep sediments of this region. The data indicate that Saharan dust and anthropogenic particles coexist at several depth intervals in the sediment, supporting the hypothesis that Saharan dust episodes could play an important role in facilitating deposition and coprecipitation of anthropogenic particles from the atmosphere and the water column.
Tipo: Text Palavras-chave: MAGNETIC PARAMETERS; SEDIMENTS; ANTHROPOGENIC; GULF OF LIONS; SAHARAN DUST.
Ano: 1993 URL: http://archimer.ifremer.fr/doc/00099/21074/18699.pdf
Registros recuperados: 2
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