Browsing by Author "Qian Y."

Now showing items 1-3 of 3

ABUNDANCE AND STABLE CARBON ISOTOPE COMPOSITION OF AMINO ACIDS IN MOLECULAR WEIGHT FRACTIONS OF FOSSIL AND ARTIFICIALLY AGED MOLLUSK SHELLS

Qian Y.; Engel M.H.; Goodfriend G.A.; Macko S.A. (1995)

Amino acid abundances in molecular weight fractions (separated by ultrafiltration) of artificially aged carbonate shells and fossil shells are reported. Hydrolyzable amino acids were primarily concentrated in the The δ13C ...
HYDROGEN ISOTOPE FRACTIONATION AND HYDROGEN DIFFUSION IN THE TOURMALINE-WATER SYSTEM

Guo J.; Qian Y. (1997)

Hydrogen isotope exchange between tourmaline and water has been studied experimentally over the temperature range of 800-350°C. The hydrogen isotope equilibrium fractionation factor between tourmaline and water may be ...
LEAD ADSORPTION AT THE CALCITE-WATER INTERFACE: SYNCHROTRON X-RAY STANDING WAVE AND X-RAY REFLECTIVITY STUDIES

Sturchio N.C.; Chiarello R.P.; Cheng L.; Lyman P.F.; Bedzyk M.J.; Qian Y.; You H.; Yee D.; Geissbuhler P.; Sorensen L.B.; Liang Y.; Baer D.R. (1997)

By combining synchrotron X-ray standing wave (XSW) measurements with synchrotron X-ray reflectivity measurements, we have determined: (1) the precise three-dimensional location within the calcite unit cell of submonolayer ...

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