The Phanerozoic delta 88/86Sr Record of Seawater: New Constraints on Past Changes in Oceanic Carbonate Fluxes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F14%3A61222" target="_blank" >RIV/60460709:41330/14:61222 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
The Phanerozoic delta 88/86Sr Record of Seawater: New Constraints on Past Changes in Oceanic Carbonate Fluxes
Original language description
The isotopic composition of Phanerozoic marine sediments provides important information about changes in seawater chemistry. In particular, the radiogenicstrontium isotope (87Sr/86Sr) system is a powerful tool for constraining plate tectonic processes and their influence on atmospheric CO2 concentrations. However, the 87Sr/86Sr isotope ratio of seawater is not sensitive to temporal changes in the marine strontium (Sr) output flux, which is primarily controlled by the burial of calcium carbonate (CaCO3)at the ocean floor. The Sr budget of the Phanerozoic ocean, including the associated changes in the amount of CaCO3 burial, is therefore only poorly constrained. Here, we present the first stable isotope record of Sr for Phanerozoic skeletal carbonates,and by inference for Phanerozoic seawater (delta 88/86Srsw), which we find to be sensitive to imbalances in the Sr input and output fluxes. This delta 88/86Srsw record varies from ~0,25 to 0,60 (vs. SRM987) with a mean of 0,37. The fracti
Czech name
—
Czech description
—

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DD - Geochemistry
OECD FORD branch
—

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)