@article{fdi:010070357,
  title = {{T}he role of sulfides in the fractionation of highly siderophile and chalcophile elements during the formation of martian shergottite meteorites},
  author = {{B}aumgartner, {R}. {J}. and {F}iorentini, {M}. {L}. and {L}orand, {J}. {P}. and {B}aratoux, {D}avid and {Z}accarini, {F}. and {F}erriere, {L}. and {P}rasek, {M}. {K}. and {S}ener, {K}.},
  editor = {},
  language = {{ENG}},
  abstract = {!{T}he shergottite meteorites are ultramafic to mafic igneous rocks whose parental magmas formed from partial melting of the martian mantle. {T}his study reports in-situ laser ablation inductively coupled plasma mass spectrometry analyses for siderophile and chalcophile major and trace elements (i.e., {C}o, {N}i, {C}u, {A}s, {S}e, {A}g, {S}b, {T}e, {P}b, {B}i, and the highly siderophile platinum-group elements, {PGE}: {O}s, {I}r, {R}u, {R}h, {P}t and {P}d) of magmatic {F}e-{N}i-{C}u sulfide assemblages from four shergottite meteorites. {T}hey include three geochemically similar incompatible trace element-({ITE}-) depleted olivine-phyric shergottites ({Y}amato-980459, {D}ar al {G}ani 476 and {D}hofar 019) that presumably formed from similar mantle and magma sources, and one distinctively {ITE}- enriched basaltic shergottite ({Z}agami). {T}he sulfides in the shergottites have been variably modified by alteration on {E}arth and {M}ars, as well as by impact shock-shock related melting/volatilization during meteorite ejection. {H}owever, they inherit and retain their magmatic {PGE} signatures. {T}he {CI} chondrite-normalized {PGE} concentration patterns of sulfides reproduce the whole-rock signatures determined in previous studies. {T}hese similarities indicate that sulfides exerted a major control on the {PGE} during shergottite petrogenesis. {H}owever, depletions of {P}t ( and {I}r) in sulfide relative to the other {PGE} suggest that additional phases such discrete {P}t-{F}e-{I}r alloys have played an important role in the concentration of these elements. {T}hese alloys are expected to have enhanced stability in reduced and {F}e{O}-rich shergottite magmas, and could be a common feature in martian igneous systems. {A} {P}t-rich {PGM} was found to occur in a sulfide assemblage in {D}hofar 019. {H}owever, its origin may be related to impact shock-related sulfide melting and volatilisation during meteorite ejection. {I}n the {ITE}-depleted olivine-phyric shergottites, positive relationships exist between petrogenetic indicators (e.g., whole-rock {M}g-number) and most moderately to strongly siderophile and chalcophile elements in sulfides. {T}hese variations extend to incompatible elements like {T}e and {P}d. {T}he whole-rock concentrations of {P}d derived from mass-balance calculations decrease by one order of magnitude in the order {Y}-980459, {D}a{G} 476 and {D}hofar 019, and broadly overlap the trends in previously published whole-rock analyses. {M}antle heterogeneities, and the timing of sulfide saturation as function of mantle melting and/or magma fractionation following ascent from the mantle, may have been the controlling factors of the siderophile and chalcophile element systematics in the analyzed shergottites.},
  keywords = {{M}ars ; {S}hergottites ; {S}ulfides ; {S}iderophile and chalcophile elements ; {P}latinum-group elements},
  booktitle = {},
  journal = {{G}eochimica et {C}osmochimica {A}cta},
  volume = {210},
  numero = {},
  pages = {1--24},
  ISSN = {0016-7037},
  year = {2017},
  DOI = {10.1016/j.gca.2017.04.011},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070357},
}