Sr/Ca in multiple species of planktonic foraminifera: Implications for reconstructions of seawater Sr/Ca.

H. Elderfield, M. Cooper, G.M. Ganssen

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Sr/Ca ratios were measured on eight species of planktonic foraminifera from a core top transect of the North Atlantic. Five of the species (Globigerinoides ruber, Globigerina bulloides, Neogloboquadrina pachyderma, Globigerinoides sacculifer, Globigerinella siphonifera) show remarkably little within-species variability in Sr/Ca (1.2 ± 0.1%). Three globorotaliid species (Globorotalia hirsuta, Globorotalia inflata, Globorotalia truncatulinoides) show somewhat greater variability (3-7%). Interspecies variations are of ∼10%. The variability in globorotaliid Sr/Ca is explained either by a greater temperature sensitivity than for other species or by depth-dependent dissolution. Other than this effect, the overwhelming control on foraminiferal Sr/Ca appears to be seawater Sr/Ca. In contrast, time series Sr/Ca records of four species from a North Atlantic sediment core over a glacial-interglacial cycle show very significant differences. N. pachyderma shows large-amplitude changes in Sr/Ca (9.7%), in phase with δ
Original languageEnglish
JournalGeochemistry, Geophysics, Geosystems
Volume1
DOIs
Publication statusPublished - 2000

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planktonic foraminifera
Seawater
Time series
Sediments
Dissolution
seawater
Temperature
dissolving
sediments
cycles
glacial-interglacial cycle
sediment core
transect
dissolution
time series
temperature

Cite this

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title = "Sr/Ca in multiple species of planktonic foraminifera: Implications for reconstructions of seawater Sr/Ca.",
abstract = "Sr/Ca ratios were measured on eight species of planktonic foraminifera from a core top transect of the North Atlantic. Five of the species (Globigerinoides ruber, Globigerina bulloides, Neogloboquadrina pachyderma, Globigerinoides sacculifer, Globigerinella siphonifera) show remarkably little within-species variability in Sr/Ca (1.2 ± 0.1{\%}). Three globorotaliid species (Globorotalia hirsuta, Globorotalia inflata, Globorotalia truncatulinoides) show somewhat greater variability (3-7{\%}). Interspecies variations are of ∼10{\%}. The variability in globorotaliid Sr/Ca is explained either by a greater temperature sensitivity than for other species or by depth-dependent dissolution. Other than this effect, the overwhelming control on foraminiferal Sr/Ca appears to be seawater Sr/Ca. In contrast, time series Sr/Ca records of four species from a North Atlantic sediment core over a glacial-interglacial cycle show very significant differences. N. pachyderma shows large-amplitude changes in Sr/Ca (9.7{\%}), in phase with δ",
author = "H. Elderfield and M. Cooper and G.M. Ganssen",
year = "2000",
doi = "10.1029/1999gc000031",
language = "English",
volume = "1",
journal = "Geochemistry, Geophysics, Geosystems",
issn = "1525-2027",
publisher = "American Geophysical Union",

}

Sr/Ca in multiple species of planktonic foraminifera: Implications for reconstructions of seawater Sr/Ca. / Elderfield, H.; Cooper, M.; Ganssen, G.M.

In: Geochemistry, Geophysics, Geosystems, Vol. 1, 2000.

Research output: Contribution to JournalArticleAcademicpeer-review

TY - JOUR

T1 - Sr/Ca in multiple species of planktonic foraminifera: Implications for reconstructions of seawater Sr/Ca.

AU - Elderfield, H.

AU - Cooper, M.

AU - Ganssen, G.M.

PY - 2000

Y1 - 2000

N2 - Sr/Ca ratios were measured on eight species of planktonic foraminifera from a core top transect of the North Atlantic. Five of the species (Globigerinoides ruber, Globigerina bulloides, Neogloboquadrina pachyderma, Globigerinoides sacculifer, Globigerinella siphonifera) show remarkably little within-species variability in Sr/Ca (1.2 ± 0.1%). Three globorotaliid species (Globorotalia hirsuta, Globorotalia inflata, Globorotalia truncatulinoides) show somewhat greater variability (3-7%). Interspecies variations are of ∼10%. The variability in globorotaliid Sr/Ca is explained either by a greater temperature sensitivity than for other species or by depth-dependent dissolution. Other than this effect, the overwhelming control on foraminiferal Sr/Ca appears to be seawater Sr/Ca. In contrast, time series Sr/Ca records of four species from a North Atlantic sediment core over a glacial-interglacial cycle show very significant differences. N. pachyderma shows large-amplitude changes in Sr/Ca (9.7%), in phase with δ

AB - Sr/Ca ratios were measured on eight species of planktonic foraminifera from a core top transect of the North Atlantic. Five of the species (Globigerinoides ruber, Globigerina bulloides, Neogloboquadrina pachyderma, Globigerinoides sacculifer, Globigerinella siphonifera) show remarkably little within-species variability in Sr/Ca (1.2 ± 0.1%). Three globorotaliid species (Globorotalia hirsuta, Globorotalia inflata, Globorotalia truncatulinoides) show somewhat greater variability (3-7%). Interspecies variations are of ∼10%. The variability in globorotaliid Sr/Ca is explained either by a greater temperature sensitivity than for other species or by depth-dependent dissolution. Other than this effect, the overwhelming control on foraminiferal Sr/Ca appears to be seawater Sr/Ca. In contrast, time series Sr/Ca records of four species from a North Atlantic sediment core over a glacial-interglacial cycle show very significant differences. N. pachyderma shows large-amplitude changes in Sr/Ca (9.7%), in phase with δ

U2 - 10.1029/1999gc000031

DO - 10.1029/1999gc000031

M3 - Article

VL - 1

JO - Geochemistry, Geophysics, Geosystems

JF - Geochemistry, Geophysics, Geosystems

SN - 1525-2027

ER -