Geochemical data as indicators of palaeosalinity in coastal organic-rich sediments

López-Buendía, Ángel M.; Bastida, J.; Querol, Xavier; Whateley, M. K. G.

doi:10.1016/s0009-2541(98)00207-1

Cited by 43 publications

(32 citation statements)

References 45 publications

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“…Additionally, Dai et al (2008a) reported extraordinarily high U concentrations (111-178 mg/kg) in a seawater-influenced coal from the Yanshan Coalfiled in China and U is generally considered as one of the elements, which can be used as palaeosalinity indicator in Quaternary coals, along with B and S (López-Buendía et al, 1999).…”

Section: Natural Radioactivitymentioning

confidence: 99%

Palaeoenvironment of Seam I in the Marathousa Lignite Mine, Megalopolis Basin (Southern Greece)

Siavalas

Linou

Chatziapostolou

et al. 2009

International Journal of Coal Geology

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Section: Natural Radioactivitymentioning

confidence: 99%

Palaeoenvironment of Seam I in the Marathousa Lignite Mine, Megalopolis Basin (Southern Greece)

Siavalas

Linou

Chatziapostolou

et al. 2009

International Journal of Coal Geology

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“…Argast and Donnelly, 1987;Fralick and Kronberg, 1997;Dypvik and Harris, 2001), redox or salinity conditions (e.g. Jones and Manning, 1994;Lopez-Buendia et al, 1999) or sorting effects in the depositional environment (e.g. Garcia et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

New insights on late Quaternary palaeogeographic setting in the Northern Adriatic Sea (Italy)

Picone

Alvisi

Dinelli

et al. 2008

J Quaternary Science

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Sedimentological, geochemical and micropalaeontological data from sediment cores in the northwestern Adriatic Sea were obtained to reconstruct the stratigraphic framework and palaeogeographic setting during the last post-glacial sea-level rise (14000-6000 yr BP). Four lithostratigraphic units were identified: (a) distal plain deposits (>14000 yr BP), submerged during the first phases of marine ingression; (b) coastal lagoon system; (c) barrier-lagoon system, which is dated back to between 10019 AE 61 and 10228 AE 174 cal. yr BP from 14 C dating on peat and shell remains; (d) marine prodelta deposits (<5500 yr BP). Geochemical data allow the identification of three distinct sediment sources: River Po, River Adige and Eastern Alpine rivers characterised by decreasing Ni/Mg ratios (50-70, 8-15 and 5-10, respectively) and Ba/Al ratios of 45-55, 55-65 and 35-45, respectively. The three sources display different relative abundances in time. During the Lateglacial, the Po is the main sediment source for the southern cores, whereas the Eastern Alps and the River Adige are the main sediment sources for the northern cores. This suggests a northern position of the Po River bed compared to previous studies. Coastal drowning led to a homogenization of the provenance signal within the sediments. Only after the marine transgression does a River Po signal appear in the northern cores. At the same time, in the southern cores the signal of Eastern Alpine rivers becomes stronger. Transgressive barrier-lagoon and recent sediments do not display a predominant signal for provenance indicators.

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“…Positive correlations of these elements with total sulfur suggest that their source was seawater (Dellwig et al 2002). This further implies that Cl and Br enrichment is an intrinsic signature of tsunami sediments, and hence these elements have used to study tsunami, palaeosalinity, and sea level changes (Szczuciński et al 2005;López-Buendía et al 1999;Chagué-Goff et al 2002). However, iodine is depleted in the tsunami sediments relative to the pre- tsunami deposits, and shows negative correlation with sulfur (Figs.…”

Section: Special Features Of the Sedimentsmentioning

confidence: 93%

“…CaO and Sr are major components of marine sediments, as they are usually associated with carbonate phases (Plank and Langmuir 1998), and consequently these parameters have been used to distinguish tsunami sediments (Szczuciński et al 2005;López-Buendía et al 1999;Nichol et al 2007). High CaO and Sr values in the tsunami sediments in the present study suggest strong marine influence in the source (Tables 2, 3).…”

Section: Special Features Of the Sedimentsmentioning

confidence: 99%

“…Tsunami sediments in wetlands were also characterized by higher Fe and/or sulfur values, along with higher organic matter contents (Goff and Chagué-Goff 1999). Higher abundances of As, Cl, Br, S and organic matter in sedimentary sequences in some coastal wetland environments such as lagoons and marshy lands reflect the influences of tsunami and sea level changes on the coast (López-Buendía et al 1999;Chagué-Goff et al 2000. The presences of higher values of Fe, Sr, Ca and S have also been linked to lagoon subsidence associated with tsunami inundation (Nichol et al 2007).…”

Section: Introductionmentioning

confidence: 99%

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Geochemistry of surface sediments in tsunami-affected Sri Lankan lagoons regarding environmental implications

Jayawardana

Ishiga

Pitawala

2011

Int. J. Environ. Sci. Technol.

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The December 26, 2004 Indian Ocean tsunami was one of the largest in human history, devastating the coastal wetlands of surrounding countries. This study present the chemical analyses of tsunamigenic and pretsunami sediments from Hikkaduwa and Hambantota lagoons in southern Sri Lanka, to assess their geochemical composition, their source, and subsequent environmental impacts. Principal component analysis of the tsunami sediments shows that 42% of the total variance is accounted for calcium oxide and Sr. That is, the tsunami deposits are rich in biogenic phases derived from shallow marine sediments. High organic matter contents of the tsunami sediments of up to 80 wt% also support this interpretation. The association of chlorine (\9.4 wt%), brome (\170 mg/kg), arsenic (\17 mg/kg), iron (III) oxide (\12.9 wt%) and sulfur (\7.6 wt%) accounts for 33% of the variance, reflecting higher salinity. This further suggests that the sediments were mainly derived from a marine environment, rather than from non-marine sands and/or soils. Immobile element contents and relations (thorium, scandium and zirconium) suggest that the tsunami sediment source was mostly felsic in composition, with some mafic component, and mixed with predominantly shallow marine shelf or slope sediments. Additional compositional variations in the tsunami sediments in both lagoons may be associated with variations of wave strength along the coast and by the morphology of the continental shelf. Lower elemental abundances in Hambantota lagoon sediments compared to Hikkaduwa equivalents may thus reflect a greater non-marine component in the former, and greater shelf sediment component in the latter.

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Geochemical data as indicators of palaeosalinity in coastal organic-rich sediments

Cited by 43 publications

References 45 publications

Palaeoenvironment of Seam I in the Marathousa Lignite Mine, Megalopolis Basin (Southern Greece)

Palaeoenvironment of Seam I in the Marathousa Lignite Mine, Megalopolis Basin (Southern Greece)

New insights on late Quaternary palaeogeographic setting in the Northern Adriatic Sea (Italy)

Geochemistry of surface sediments in tsunami-affected Sri Lankan lagoons regarding environmental implications

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