Table 1.

Results of coordinated analysis of 3 meteorites

NWA 801NWA 7020Murchison meteoriteMurchison soil
Content (ppb)δ13C (‰)Content (ppb)δ13C (‰)Content (ppb)δ13C (‰)δ13C (‰)
Sugars
 Ribose4.5+8<0.5NA25+38−46
 Arabinose11NA<0.5NA120+43−52
 Xylose6+25<0.5NA180−1−44
 Lyxose2.3NA<0.5NA6.7NANA
Petrologic typeCR 3.0 to 2.8CR 2.8 to 2.5CM 2.5
Carbon chemistryIalipha > IaromaIalipha/Iaroma ∼ 1Ialipha < Iaroma*
IOM δ13C (‰)−20.7 (±1.2)−22.4 (±0.61)−18.91 (±0.01)
IOM δ15N (‰)+66.0 (±0.18)+93.4 (±6.4)−1.0 (±0.4)
N/C0.0290.0300.0327 (±0.0003)
  • The δ13C values show the isotope ratios of aldopentoses. NA, not analyzed or detected.

  • * Ref. 23.

  • Ref. 25.