@article{fdi:010092398,
  title = {{M}oderately volatile elemental and isotopic variations in variably shocked equilibrated ordinary chondrites from {A}ntarctica},
  author = {{R}oland, {J}. and {D}ebaille, {V}. and {P}ourkhorsandi, {H}amed and {G}oderis, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{V}olatile elements, crucial players in planetary evolution, condense at low temperatures from solar nebula. {D}espite extensive past research, gaps remain in understanding the volatile budget establishment and depletion mechanisms during the early stages of {S}olar {S}ystem formation. {T}his study investigates the role of shock events on multiple isotope systems in {H}6 ordinary chondrites with varying shock and weathering degrees. {I}n this study, we classified fifteen {H}6 ordinary chondrites from {A}ntarctica for their shock and weathering stages. {W}e report the bulk trace elemental abundances of the samples and focus on {Z}n, {G}a, {C}u, and {F}e isotope compositions, each with distinct 50% condensation temperatures at 726 {K}, 968 {K}, 1037 {K}, and 1334 {K}, respectively. {T}hree of those elements ({Z}n, {G}a, and {C}u) are moderately volatile and trace elements whereas {F}e is a moderately refractory and major element. {Z}inc, with the lowest condensation temperature in this suite, exhibits the widest range in isotopic fractionation (difference between maximum and minimum delta (?) values in per mil, expressed as delta hereafter) in our data set with delta 66{Z}n = 2.60 ?. {G}allium presents a much narrower range of fractionation with delta 71{G}a = 0.62 ? while copper is three times lower at delta 65{C}u = 0.21 ?. {I}ron, with the highest condensation temperature, displays the lowest range with delta 56{F}e = 0.18 ?. {I}nterestingly, we found that these variations in isotopic fractionation do not appear to correlate with the shock stage nor weathering grade of the samples. {O}ur findings suggest that impacts cannot explain the observed isotopic fractionation. {E}vaporative loss due to thermal metamorphism on the parent body may account for {Z}n and {G}a isotope fractionation but likely represents a minor process. {F}uture research should investigate variously metamorphosed samples using in-situ techniques (e.g., laser ablation {MC}-{IPC}-{MS} or {SIMS}) to highlight condensation and accretion processes from the early solar nebula.},
  keywords = {{ANTARCTIQUE}},
  booktitle = {},
  journal = {{I}carus},
  volume = {412},
  numero = {},
  pages = {115983 [13 ]},
  ISSN = {0019-1035},
  year = {2024},
  DOI = {10.1016/j.icarus.2024.115983},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092398},
}