On the concentrations of O2, N2, and Ar in trapped gases from ice cores

M. Bender, Todd Anthony Sowers, V. Lipenkov

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Data is presented on the relative concentration and isotopic composition of O2, N2, and Ar in gases trapped in bubbles of polar ice. O2/N2 and Ar/N2 ratios are generally lower than the atmospheric values, with O2 depletions greater than those of Ar. In samples whose O2/Ar/N2 ratios are highly anomalous with respect to modern air, δ18O of O2 may be enriched by 0.1-0.2‰. There is no indication that δ15N of N2 is enriched by gas loss processes in any of the samples we have studied. Our data suggest that anomalies in the composition of air in bubbles with respect to the modern atmosphere are due to gas loss from ice during and after coring. -from Authors

Original languageEnglish (US)
JournalJournal of Geophysical Research
Volume100
Issue numberD9
StatePublished - Jan 1 1995

Fingerprint

Ice
ice core
ice
Gases
gases
bubbles
bubble
gas
air
Air
Chemical analysis
indication
depletion
isotopic composition
anomalies
anomaly
atmospheres
sampling
atmosphere
loss

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Oceanography
  • Forestry
  • Aquatic Science
  • Ecology
  • Condensed Matter Physics
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Materials Chemistry
  • Palaeontology

Cite this

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abstract = "Data is presented on the relative concentration and isotopic composition of O2, N2, and Ar in gases trapped in bubbles of polar ice. O2/N2 and Ar/N2 ratios are generally lower than the atmospheric values, with O2 depletions greater than those of Ar. In samples whose O2/Ar/N2 ratios are highly anomalous with respect to modern air, δ18O of O2 may be enriched by 0.1-0.2‰. There is no indication that δ15N of N2 is enriched by gas loss processes in any of the samples we have studied. Our data suggest that anomalies in the composition of air in bubbles with respect to the modern atmosphere are due to gas loss from ice during and after coring. -from Authors",
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On the concentrations of O2, N2, and Ar in trapped gases from ice cores. / Bender, M.; Sowers, Todd Anthony; Lipenkov, V.

In: Journal of Geophysical Research, Vol. 100, No. D9, 01.01.1995.

Research output: Contribution to journalArticle

TY - JOUR

T1 - On the concentrations of O2, N2, and Ar in trapped gases from ice cores

AU - Bender, M.

AU - Sowers, Todd Anthony

AU - Lipenkov, V.

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N2 - Data is presented on the relative concentration and isotopic composition of O2, N2, and Ar in gases trapped in bubbles of polar ice. O2/N2 and Ar/N2 ratios are generally lower than the atmospheric values, with O2 depletions greater than those of Ar. In samples whose O2/Ar/N2 ratios are highly anomalous with respect to modern air, δ18O of O2 may be enriched by 0.1-0.2‰. There is no indication that δ15N of N2 is enriched by gas loss processes in any of the samples we have studied. Our data suggest that anomalies in the composition of air in bubbles with respect to the modern atmosphere are due to gas loss from ice during and after coring. -from Authors

AB - Data is presented on the relative concentration and isotopic composition of O2, N2, and Ar in gases trapped in bubbles of polar ice. O2/N2 and Ar/N2 ratios are generally lower than the atmospheric values, with O2 depletions greater than those of Ar. In samples whose O2/Ar/N2 ratios are highly anomalous with respect to modern air, δ18O of O2 may be enriched by 0.1-0.2‰. There is no indication that δ15N of N2 is enriched by gas loss processes in any of the samples we have studied. Our data suggest that anomalies in the composition of air in bubbles with respect to the modern atmosphere are due to gas loss from ice during and after coring. -from Authors

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