The distribution of natural and non-crustal ferrimagnetic minerals in soil-sized particulates from the Mediterranean atmosphere

Chester, R.; Sharples, E. J.; Sanders, Gordon; Oldfield, Frank

doi:10.1007/bf00185128

Cited by 24 publications

(12 citation statements)

References 13 publications

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“…Our data on magnetic parameters provided evidence on the atmospheric versus riverine input of particles and some strong indications about the presence of anthropogenic particles in offshore deep-sea sediments in this region. Moreover, the data indicated that Saharan dust and anthropogenic particles coexisted in the sediments, supporting the hypothesis that Saharan dust episodes could play an important role in facilitating deposition and co-precipitation of anthropogenic particles from the atmosphere and the water column [56,67]. …”

Section: The Gulf Of Lionssupporting

confidence: 57%

“…The purpose of the study was to test the capabilities of the magnetic methodology in tracing the dispersion of contaminants in the marine environment. Previous works [53,56] have shown that particles originating from fossil fuel combustion exhibit strong ferrimagnetic behavior and correspond to coarse magnetic grains. Our task was to decipher their presence in marine sediments [57].…”

Section: The Gulf Of Lionsmentioning

confidence: 97%

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Linking Environmental Magnetism to Geochemical Studies and Management of Trace Metals. Examples from Fluvial, Estuarine and Marine Systems

2014

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Among the diverse research fields and wide range of studies encompassed by environmental magnetism, the present work elaborates on critical aspects of the geochemistry of trace metals that emerged through years of original research in a variety of environmental compartments. This review aims at sharing the insights gained on (a) tracing metal pollution sources; and (b) identifying processes and transport pathways from sources to depositional environments. Case studies on the Elefsis Gulf (Greece) and the Gulf of Lions (France) demonstrate the potential of combined magnetic measurements and chemical analysis to trace pollution signals resulting from land-based sources and atmospheric deposition. Case studies on estuarine environments, namely the Louros, Acheloos, and Asopos Estuaries (Greece), address modes of trace metal behavior under the influence of different hydrological regimes and elucidate in situ processes within the transitional estuarine zone, that define their ultimate fate. As sources, transport pathways, and processes of trace metals are fundamental in environmental management assessments, the involvement of magnetic measurements in the policy cycle could facilitate the development and implementation of appropriate regulatory measures for the integrated management of river basins, coastal, and marine areas. OPEN ACCESSMinerals 2014, 4 717

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Section: The Gulf Of Lionssupporting

confidence: 57%

Section: The Gulf Of Lionsmentioning

confidence: 97%

Linking Environmental Magnetism to Geochemical Studies and Management of Trace Metals. Examples from Fluvial, Estuarine and Marine Systems

2014

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“…The only published rock magnetic data for Eastern Mediterranean regional dust samples which we are aware are magnetic susceptibility data from atmospheric particulates collected in 0.5-µm nylon meshes on board scientific cruises (Chester et al, 1984). Although no grain size data were reported for these dust samples, they are expected to have a modal grain size similar to that of regional NES dust collected at Crete (8-30 µm, Mattsson and Nihlén, 1996) and Israel (20-40 µm, Yaalon and Ganor, 1979).…”

Section: Dustmentioning

confidence: 99%

Source-to-sink magnetic properties of NE Saharan dust in Eastern Mediterranean marine sediments: review and paleoenvironmental implications

et al. 2015

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“…Outbreaks of dust-laden Saharan air over the Mediterranean and southern Europe are quite frequent (Eriksson, 1979;Prodi and Fea, 1979;Ganor and Mamane, 1981;Bucher, 1986Bucher, , 1989Bucher and Lucas, 1984;Bucher et al, 1983; Loye-Pilot et al, 1986; Bergametti et al, 1989), and episodes of dust haze over Crete usually occur several times each year (Rapp and Nihlen, 1984;Nihlen and Solyom, 1989;Nihlen and Mattson, 1989). Saharan dust has been observed in Alpine snow (Haeberli, 1978;Wagenbach and Geis, 1989), and has been collected from the atmosphere over the Mediterranean (Tomasi et al, 1979;Prodi et al, 1983;Chester et at., 1977Chester et at., , 1984aChester et at., , 1984bTomadin et al, 1984). A significant Saharan dust component has also been identified in Quaternary marine sediments in parts of the Mediterranean (Venkatathnam and Ryan, 1971;Tomadin, 1974;Eriksson, 1979;Mazzucotelli et al, 1986;Tomadin and Lenaz, 1989).…”

Section: Introductionmentioning

confidence: 97%

Aeolian dust transport and deposition over crete and adjacent parts of the mediterranean sea

Pye

1992

Earth Surf Processes Landf

117

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Monitoring of dust deposition at several stations on Crete over a three year period has shown that the present-day depositional flux is of the order of 10-100 gm-' yr-l. Most of the dust deposition takes place during a few annual dust 'events' which typically last for 1-3 days. Dust haze episodes are usually associated with southerly or southwesterly winds which transport fine sediment from North Africa. Dust is raised by a wide variety of meteorological conditions which generate strong near-surface winds in the source areas, but major long-range transport events are often associated with cold fronts linked to the passage of deep mid-latitude depressions during winter and spring. Dust haze frequency and deposition rates are highest in western Crete and decrease towards the east, suggesting that transport from Tunisia and neighbouring parts of North Africo is particularly important. The measured rate of dust deposition is well below the minimum level required for loess formation. Deposits which have previously been identified as loess are shown to be uncemented marine mark of Tertiary age. Laboratory analysis of red soils, surface sediments, and bedrock samples has confirmed that many of the soils contain an important aeolian dust component, but it is concluded that a more important source of soil parent material is provided by weathering of local rocks. Many of the soils contain significant amounts of quartz sand which cannot have been transported across the sea from North Africa. Reworking of weathered material and deposited dust is extensive, and is accomplished by both aeolian and fluvial processes. Tectonically-controlled depressions in the mountains and parts of the coastal lowlands have acted as long-term sinks in which a thickness of several metres of sediment and soil has accumulated during the Quaternary.

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The distribution of natural and non-crustal ferrimagnetic minerals in soil-sized particulates from the Mediterranean atmosphere

Cited by 24 publications

References 13 publications

Linking Environmental Magnetism to Geochemical Studies and Management of Trace Metals. Examples from Fluvial, Estuarine and Marine Systems

Linking Environmental Magnetism to Geochemical Studies and Management of Trace Metals. Examples from Fluvial, Estuarine and Marine Systems

Source-to-sink magnetic properties of NE Saharan dust in Eastern Mediterranean marine sediments: review and paleoenvironmental implications

Aeolian dust transport and deposition over crete and adjacent parts of the mediterranean sea

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