New triple oxygen isotope data of bulk and separated fractions from SNC meteorites: Evidence for mantle homogeneity of Mars

New triple oxygen isotope data of bulk and separated fractions from SNC meteorites: Evidence for mantle homogeneity of Mars

We report precise triple oxygen isotope data of bulk materials and separated fractions of several Shergotty–Nakhla–Chassigny (SNC) meteorites using enhanced laser‐assisted fluorination technique. This study shows that SNCs have remarkably identical Δ17O and a narrow range in δ18O values suggesting t...

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Veröffentlicht in:Meteoritics & planetary science 2016-05, Vol.51 (5), p.981-995
Hauptverfasser: Ali, Arshad, Jabeen, Iffat, Gregory, David, Verish, Robert, Banerjee, Neil R.
Format: Artikel
Sprache:eng
Schlagworte:
Fractionation
Homogeneity
Mantle
Meteorites
Oxygen isotopes
Silicates
Slopes
SNC meteorites
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Zusammenfassung:We report precise triple oxygen isotope data of bulk materials and separated fractions of several Shergotty–Nakhla–Chassigny (SNC) meteorites using enhanced laser‐assisted fluorination technique. This study shows that SNCs have remarkably identical Δ17O and a narrow range in δ18O values suggesting that these meteorites have assimilated negligibly small surface materials (
ISSN:1086-9379
1945-5100
DOI:10.1111/maps.12640