@article{fdi:010073762,
  title = {{R}elationship between mineralogy and minor element partitioning in limpets from an {I}schia {CO}2 vent site provides new insights into their biomineralization pathway},
  author = {{L}anger, {G}. and {S}adekov, {A}. and {N}ehrke, {G}. and {B}aggini, {C}. and {R}odolfo-{M}etalpa, {R}iccardo and {H}all-{S}pencer, {J}. {M}. and {C}uoco, {E}. and {B}ijma, {J}. and {E}lderfield, {H}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}t has long since been noted that minor element ({M}e) partitioning into biogenic carbonates is sometimes different from {M}e partitioning into inorganically precipitated carbonates. {T}he prime example is the partitioning coefficient, which might be lower or even higher than the one of inorganically precipitated carbonate. {S}uch a difference is usually termed "vital effect" and is seen as indicative of a biologically modified minor element partitioning. {O}ver the last three decades interest in conceptual biomineralization models compatible with minor element and isotope fractionation has been steadily increasing. {H}owever, inferring features of a biomineralization mechanism from {M}e partitioning is complicated, because not all partitioning coefficients show vital effects in every calcium carbonate producing organism. {M}oreover, the partitioning coefficient is not the only aspect of {M}e partitioning. {O}ther aspects include polymorph specificity and rate dependence. {P}atellogastropod limpets are ideally suited for analysing {M}e partitioning in terms of biomineralization models, because they feature both aragonitic and calcitic shell parts, so that polymorph specificity can be tested. {I}n this study, polymorph-specific partitioning of the minor elements {M}g, {L}i, {B}, {S}r, and {U} into shells of the patellogastropod limpet {P}atella caerulea from within and outside a {CO}2 vent site at {I}schia ({I}taly) was investigated by means of {LA}-{ICP}-{MS}. {T}he partitioning coefficients of {U}, {B}, {M}g, and {S}r (in aragonite) differed from the respective inorganic ones, while the partitioning coefficients of {L}i and {S}r (in calcite) fell within the range of published values for inorganically precipitated carbonates. {P}olymorph specificity of {M}e partitioning was explicable in terms of inorganic precipitation in the case of {S}r and {M}g, but not {L}i and {B}. {S}eawater carbon chemistry did not have the effect on {B} partitioning that was expected on the basis of data on inorganic precipitates and foraminifera. {C}arbon chemistry did affect {M}g (in aragonite) and {L}i, but only the effect on {M}g was explicable in terms of calcification rate. {O}n the one hand, these results show that {M}e partitioning in {P}. caerulea is incompatible with a direct precipitation of shell calcium carbonate from the extrapallial fluid. {O}n the other hand, our results are compatible with precipitation from a microenvironment formed by the mantle. {S}uch a microenvironment was proposed based on data other than {M}e partitioning. {T}his is the first study which systematically employs a multi-element, multi-aspect approach to test the compatibility of {M}e partitioning with different conceptual biomineralization models.},
  keywords = {{M}ollusc biomineralisation ; {M}inor element fractionation ; {S}hell mineralogy ; {ITALIE} ; {ISCHIA}},
  booktitle = {{C}hemistry of oceans past and present : a special {I}ssue in tribute to {H}arry {E}lderfield},
  journal = {{G}eochimica et {C}osmochimica {A}cta},
  volume = {236},
  numero = {{N}o sp{\'e}cial},
  pages = {218--229},
  ISSN = {0016-7037},
  year = {2018},
  DOI = {10.1016/j.gca.2018.02.044},
  URL = {https://www.documentation.ird.fr/hor/fdi:010073762},
}