@article{fdi:010066254,
  title = {{S}r-88/{S}r-86 fractionation in inorganic aragonite and in corals},
  author = {{F}ruchter, {N}. and {E}isenhauer, {A}. and {D}ietzel, {M}. and {F}ietzke, {J}. and {B}ohm, {F}. and {M}ontagna, {P}. and {S}tein, {M}. and {L}azar, {B}. and {R}odolfo-{M}etalpa, {R}iccardo and {E}rez, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{C}onflicting results have been reported for the stable {S}r isotope fractionation, specifically with respect to the influence of temperature. {I}n an experimental study we have investigated the stable {S}r isotope systematics for inorganically precipitated and biogenic (coral) aragonite (natural and laboratory-cultured). {I}norganic aragonite precipitation experiments were performed from natural seawater using the {CO}2 diffusion technique. {T}he experiments were performed at different temperatures and different carbonate ion concentrations. {S}r-88/{S}r-86 of the inorganic aragonite precipitated in the experiments are 0.2% lighter than seawater, but showed no correlation to the water temperature or to {CO}32- concentration. {S}imilar observations are made in different coral species ({C}ladocora caespitosa, {P}orites sp. and {A}cropora sp.), with identical fractionation from the bulk solution and no correlation to temperature or {CO}32- concentration. {T}he lack of {S}r-88/{S}r-86 variability in corals at different environmental parameters and the similarity to the {S}r-88/{S}r-86 fractionation in inorganic aragonite may indicate a similar {S}r incorporation mechanism in corals skeleton and inorganic aragonite, and therefore the previously proposed {R}ayleigh-based multi element model ({G}aetani et al., 2011) cannot explain the process of {S}r incorporation in the coral skeletal material. {I}t is proposed that the relatively constant {S}r-88/{S}r-86 fractionation in aragonite can be used for paleo reconstruction of seawater {S}r-88/{S}r-86 composition. {T}he seawater {S}r-88/{S}r-86 ratio reconstruction can be further used in calcite samples to reconstruct paleo precipitation rates.},
  keywords = {{ISRAEL} ; {AQUABA} {GOLFE} ; {MER} {ROUGE} ; {MONACO} ; {ITALIE} ; {MEDITERRANEE} ; {TAHITI} ; {PACIFIQUE}},
  booktitle = {},
  journal = {{G}eochimica et {C}osmochimica {A}cta},
  volume = {178},
  numero = {},
  pages = {268--280},
  ISSN = {0016-7037},
  year = {2016},
  DOI = {10.1016/j.gca.2016.01.039},
  URL = {https://www.documentation.ird.fr/hor/fdi:010066254},
}