@article{fdi:010053750,
  title = {{C}ontrasting isotopic signatures between anthropogenic and geogenic {Z}n and evidence for post-depositional fractionation processes in smelter-impacted soils from {N}orthern {F}rance},
  author = {{J}uillot, {F}arid and {M}arechal, {C}. and {M}orin, {G}. and {J}ouvin, {D}. and {C}acaly, {S}. and {T}elouk, {P}. and {B}enedetti, {M}. {F}. and {I}ldefonse, {P}. and {S}utton, {S}. and {G}uyot, {F}. and {B}rown, {G}. {E}.},
  editor = {},
  language = {{ENG}},
  abstract = {{Z}inc isotopes have been studied along two smelter-impacted soil profiles sampled near one of the largest {P}b and {Z}n processing plants in {E}urope located in northern {F}rance, about 50 km south of {L}ille. {M}ean delta {Z}n-66 values along these two soil profiles range from +0.22 +/- 0.17 parts per thousand (2 sigma) to +0.34 +/- 0.17 parts per thousand (2 sigma) at the lowest horizons and from +0.38 +/- 0.45 parts per thousand (2 sigma) to +0.76 +/- 0.14 parts per thousand (2 sigma) near the surface. {T}he delta {Z}n-66 values in the lowest horizons of the soils are interpreted as being representative of the local geochemical background (mean value +0.31 +/- 0.38 parts per thousand), whereas heavier delta {Z}n-66 values near the surface of the two soils are related to anthropogenic {Z}n. {T}his anthropogenic {Z}n occurs in the form of franklinite ({Z}n{F}e2{O}4)-bearing slag grains originating from processing wastes at the smelter site and exhibiting delta {Z}n-66 values of +0.81 +/- 0.20 parts per thousand (2 sigma). {T}he presence of franklinite is indicated by {EXAFS} analysis of the topsoil samples from both soil profiles as well as by micro-{XANES} analysis of the surface horizon of a third smelter-impacted soil from a distant site. {T}hese results indicate that naturally occurring {Z}n and smelter-derived {Z}n exhibit significantly different delta {Z}n-66 values, which suggests that zinc isotopes can be used to distinguish between geogenic and anthropogenic sources of {Z}n in smelter-impacted soils. {I}n addition to a possible influence of additional past sources of light {Z}n (likely {Z}n-sulfides and {Z}n-sulfates directly emitted by the smelter), the light delta {Z}n-66 values in the surface horizons compared to smelter-derived slag materials are interpreted as resulting mainly from fractionation processes associated with biotic and/or abiotic pedological processes ({Z}n-bearing mineral precipitation, {Z}n complexation by organic matter, and plant uptake of {Z}n). {T}his conclusion emphasizes the need for additional {Z}n isotopic studies before being able to use {Z}n isotopes to trace sources and pathways of this element in surface environments.},
  keywords = {},
  booktitle = {},
  journal = {{G}eochimica et {C}osmochimica {A}cta},
  volume = {75},
  numero = {9},
  pages = {2295--2308},
  ISSN = {0016-7037},
  year = {2011},
  DOI = {10.1016/j.gca.2011.02.004},
  URL = {https://www.documentation.ird.fr/hor/fdi:010053750},
}