Isotopic composition of silicon measured by multicollector plasma source mass spectrometry in dry plasma mode

Cardinal, Damien; Alleman, L.; Jong, Jeroen de; Ziegler, K.; André, Luc

doi:10.1039/b210109b

Cited by 186 publications

(236 citation statements)

References 36 publications

(124 reference statements)

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“…Mass bias and matrix effects were corrected using internal Mg-doping according to ref. 46. The results are reported as d 30 Si values related to the standard NBS28.…”

Section: Methodsmentioning

confidence: 99%

Silicon isotopes indicate enhanced carbon export efficiency in the North Atlantic during deglaciation

et al. 2014

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Today's Sargasso Sea is nutrient starved, except for episodic upwelling events caused by wind-driven winter mixing and eddies. Enhanced diatom opal burial in Sargasso Sea sediments indicates that silicic acid, a limiting nutrient today, may have been more available in subsurface waters during Heinrich Stadials, millennial-scale climate perturbations of the last glacial and deglaciation. Here we use the geochemistry of opal-forming organisms from different water depths to demonstrate changes in silicic acid supply and utilization during the most recent Heinrich Stadial. We suggest that during the early phase (17.5-18 ka), winddriven upwelling replenished silicic acid to the subsurface, resulting in low Si utilization. By 17 ka, stratification reduced the surface silicic acid supply leading to increased Si utilization efficiency. This abrupt shift in Si cycling would have contributed to high regional carbon export efficiency during the recent Heinrich Stadial, despite being a period of increasing atmospheric CO 2 .

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“…Mass bias and matrix effects were corrected using internal Mg-doping according to ref. 46. The results are reported as d 30 Si values related to the standard NBS28.…”

Section: Methodsmentioning

confidence: 99%

Silicon isotopes indicate enhanced carbon export efficiency in the North Atlantic during deglaciation

et al. 2014

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“…It has been shown that minerals formed at different temperatures were isotopically lighter (i.e. enriched in 28 Si) as a function of decreasing crystallization temperature. 8 Based on theoretical calculations, Grant 9 predicted a positive correlation between 30 Si enrichment and increasing silicon content in rocks.…”

Section: Introductionmentioning

confidence: 99%

Stable silicon isotope analysis on nanomole quantities using MC-ICP-MS with a hexapole gas-collision cell

Sun

Andersson

Land

et al. 2010

J. Anal. At. Spectrom.

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“…Methods for the analysis of δ 30 Si include fluorine based conversion of purified silica into SiF 4 and IRMS (De Freitas et al, 1991;De La Rocha et al, 1996;Ding et al, 1996;Leng and Sloane, 2008), Multicollector Inductively Coupled Plasma Mass Spectrometry (MC-ICP-MS) (De La Rocha 2002;Cardinal et al, 2003;Reynolds et al, 2006b), acid decomposition and IRMS (Brzezinksi et al, 2006) or ion microprobe analysis (e.g. Basile-Doelsch et al (2005)).…”

Section: Silicon Isotopesmentioning

confidence: 99%

Section: Silicon Isotopesmentioning

confidence: 99%

“…De La Rocha, 2002;Cardinal et al, 2003). Through the use of standard-sample-standard bracketing, reliable δ 30 Si measurements can be obtained with analytical errors under conventional MC-ICP-MS that are either equivalent to or lower than those achieved with IRMS (Cardinal et al, 2003). Further advances in recent years have been made by using an alkaline fusion rather than HF dissolution stage to increase the sensitivity and reduce silicon fractionation during sample introduction van den Boorn et al, 2006).…”

Section: Silicon Isotopesmentioning

confidence: 99%

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Stable isotopes from diatom silica

Leng

Swann

2010

The Diatoms

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Isotopic composition of silicon measured by multicollector plasma source mass spectrometry in dry plasma mode

Cited by 186 publications

References 36 publications

Silicon isotopes indicate enhanced carbon export efficiency in the North Atlantic during deglaciation

Silicon isotopes indicate enhanced carbon export efficiency in the North Atlantic during deglaciation

Stable silicon isotope analysis on nanomole quantities using MC-ICP-MS with a hexapole gas-collision cell

Stable isotopes from diatom silica

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