Browsing ELibrary by Subject "C-13/C-12"

Now showing items 1-3 of 3

CHANGES IN ORGANIC MATTER PRODUCTION AND ACCUMULATION AS A MECHANISM FOR ISOTOPIC EVOLUTION IN THE MESOPROTEROZOIC OCEAN

Frank T.D.; Kah L.C.; Lyons T.W. (2003)

Mesoproterozoic marine successions worldwide record a shift in average delta(13)C values from 0 to +3.5parts per thousand, with the latter value evident in successions younger than 1250 Ma. New carbon isotope data from the ...
SHOCK-INDUCED DEVOLATILIZATION AND ISOTOPIC FRACTIONATION OF H AND C FROM MURCHISON METEORITE: SOME IMPLICATIONS FOR PLANETARY ACCRETION

Tyburczy J.A.; Xu X.; Ahrens T.J.; Epstein S. (2001)

Incipient shock-induced devolatilization of Murchison meteorite occurs upon subjecting samples to a minimum shock stress, or pressure, of about 5 GPa. This pressure is similar to that required to initiate devolatilization ...
THE INFLUENCE OF DIET ON THE δ13C OF SHELL CARBON IN THE PULMONATE SNAIL HELIX ASPERSA

Stott L.D. (2002)

The influence of diet and atmospheric CO2 on the carbon isotope composition of shell aragonite and shell-bound organic carbon in the pulmonate snail Helix aspersa raised in the laboratory was investigated. Three separate ...

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