Determination of Rare Earth Elements, Sc, Y, Zr, Ba, Hf and Th in Geological Samples by ICP‐MS after Tm Addition and Alkaline Fusion

Bayon, Germain; Barrat, Jean‐Alix; Étoubleau, Joël; Benoît, Mathieu; Bollinger, Claire; Révillon, Sidonie

doi:10.1111/j.1751-908x.2008.00880.x

Cited by 110 publications

(99 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Thulium was used as an internal standard to correct short-and longterm instrumental drift (see Barrat et al (1996) and Bayon et al (2009) for detailed information on this method). External calibration was performed using an in-house multielement solution prepared from certified stock solutions.…”

Section: Elemental Analysesmentioning

confidence: 99%

“…Concentrations were calculated using the Tm addition method. Details on the calculations can be found in Bayon et al (2009). Briefly, for each sample, elemental concentrations were calculated using the sample mass, the amount of Tm added, and by calibrating the raw data acquired during the measurement session against the unspiked (no added Tm) in-house multi-element solution, run after every five samples.…”

Section: Elemental Analysesmentioning

confidence: 99%

See 1 more Smart Citation

Li/Ca enrichments in great scallop shells (Pecten maximus) and their relationship with phytoplankton blooms

Thébault

Chauvaud

2013

Palaeogeography, Palaeoclimatology, Palaeoecology

View full text Add to dashboard Cite

To cite this version:Julien Thébault, Laurent Chauvaud. Li/Ca enrichments in great scallop shells (Pecten maximus) and their relationship with phytoplankton blooms. Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier, 2012, 373, pp.108-122. <10.1016/j.palaeo.2011 AbstractPhytoplankton dynamics in coastal oceans is a major component of the global biogeochemical carbon cycle, and is currently affected by global change through modifications in levels of primary productivity and composition of phytoplankton communities. Despite many attempts, no straightforward geochemical proxy has been found yet in marine biogenic carbonates for reconstruction of past phytoplankton dynamics with high temporal resolution. Here, we report on subweekly variations of lithium-to-calcium ratios (Li/Ca shell ) along the axis of maximum growth of great scallop shells ( Comparison of these results with shell growth measurements (increment width) and environmental parameters suggests (i) that shell calcification rate is likely the main factor controlling incorporation of Li in Pecten maximus shell calcite, (ii) that seawater temperature has only a weak positive influence on Li/Ca shell of this species over the range 8-18°C, and (iii) that during diatom blooms, additional amounts of Li may be trapped in the shell following dissolution of Li-rich frustules of edible species in the digestive tract of scallops, being responsible for Li/Ca shell peaks. Therefore, we suggest that Li/Ca shell ratio may be a novel proxy for timing and magnitude of diatom blooms in coastal ecosystems. Analysis of ancient shells may thus provide useful information on past phytoplankton dynamics and on the importance of recent shifts observed from diatoms to non-siliceous phytoplankton in coastal areas affected by anthropogenic activities.

show abstract

Section: Elemental Analysesmentioning

confidence: 99%

Section: Elemental Analysesmentioning

confidence: 99%

Li/Ca enrichments in great scallop shells (Pecten maximus) and their relationship with phytoplankton blooms

Thébault

Chauvaud

2013

Palaeogeography, Palaeoclimatology, Palaeoecology

View full text Add to dashboard Cite

show abstract

“…After sieving for the clays, each carbonatefree sediment sample was dissolved by alkaline fusion following the method recommended by ref. 59. Organic matter was removed by leaching them with a solution of 4% (vol/vol) H 2 O 2 .…”

Section: Methodsmentioning

confidence: 99%

Abrupt drainage cycles of the Fennoscandian Ice Sheet

Soulet

Ménot

Bayon

et al. 2013

Proc. Natl. Acad. Sci. U.S.A.

Self Cite

View full text Add to dashboard Cite

Continental ice sheets are a key component of the Earth's climate system, but their internal dynamics need to be further studied. Since the last deglaciation, the northern Eurasian Fennoscandian Ice Sheet (FIS) has been connected to the Black Sea (BS) watershed, making this basin a suitable location to investigate former icesheet dynamics. Here, from a core retrieved in the BS, we combine the use of neodymium isotopes, high-resolution elemental analysis, and biomarkers to trace changes in sediment provenance and river runoff. We reveal cyclic releases of meltwater originating from Lake Disna, a proglacial lake linked to the FIS during Heinrich Stadial 1. Regional interactions within the climate-lake-FIS system, linked to changes in the availability of subglacial water, led to abrupt drainage cycles of the FIS into the BS watershed. This phenomenon raised the BS water level by ∼100 m until the sill of the Bosphorus Strait was reached, flooding the vast northwestern BS shelf and deeply affecting the hydrology and circulation of the BS and, probably, of the Marmara and Aegean Seas.ice dynamics | meltwater routing | European hydrographic network

show abstract

“…All samples were digested by alkaline fusion following a procedure based on Bayon et al (2009). About 5 mg of dried sediment powder were transferred into glassy carbon crucibles and placed into an oven at 650°C for 12 min, after addition of analytical grade NaOH (about 200 mg) and Na 2 O 2 pellets (about 50 mg).…”

Section: Sample and Chemical Preparationsmentioning

confidence: 99%

The silicon isotopic composition of fine-grained river sediments and its relation to climate and lithology

Bayon

Delvigne

Ponzevera

et al. 2018

Geochimica et Cosmochimica Acta

View full text Add to dashboard Cite

The d 30 Si stable isotopic composition of silicon in soils and fine-grained sediments can provide insights into weathering processes on continents, with important implications on the Si budget of modern and past oceans. To further constrain the factors controlling the distribution of Si isotopes in sediments, we have analysed a large number (n = 50) of separate size-fractions of sediments and suspended particulate materials collected near the mouth of rivers worldwide. This includes some of the world's largest rivers (e.g. Amazon, Congo, Mackenzie, Mississippi, Murray-Darling, Nile, Yangtze) and rivers from the case study areas of the Congo River Basin and Northern Ireland. Silt-size fractions exhibit a mean Si isotopic composition (d 30 Si = À0.21 ± 0.19‰; 2 s.d.) similar to that previously inferred for the upper continental crust. In contrast, clay-size fractions display a much larger range of d 30 Si values from À0.11‰ to À2.16‰, which yield a global d 30 Si clay of À0.57 ± 0.60‰ (2 s.d.) representative of the mean composition of the average weathered continental crust. Overall, these new data show that the Si isotopic signature transported by river clays is controlled by the degree of chemical weathering, as inferred from strong relationships with Al/Si ratios. At a global scale, the clay-bound Si isotopic composition of the world's largest river systems demonstrates a link with climate, defining a general correlation with mean annual temperature (MAT) in corresponding drainage basins. While the distribution of Si isotopes in river sediments also appears to be influenced by the tectonic setting, lithological effects and sediment recycling from former sedimentary cycles, our results pave the way for their use as paleo-weathering and paleo-climate proxies in the sedimentary record.

show abstract

Determination of Rare Earth Elements, Sc, Y, Zr, Ba, Hf and Th in Geological Samples by ICP‐MS after Tm Addition and Alkaline Fusion

Cited by 110 publications

References 30 publications

Li/Ca enrichments in great scallop shells (Pecten maximus) and their relationship with phytoplankton blooms

Li/Ca enrichments in great scallop shells (Pecten maximus) and their relationship with phytoplankton blooms

Abrupt drainage cycles of the Fennoscandian Ice Sheet

The silicon isotopic composition of fine-grained river sediments and its relation to climate and lithology

Contact Info

Product

Resources

About