The Stable Isotope Laboratory was established in 1981 to foster the applications of light stable isotopes of carbon, hydrogen, and oxygen to problems in geology and archaeology. We actively encourage student research at the undergraduate as well as graduate level; the laboratory has supported diverse activities ranging from surface water hydrology to evolution of the Earth's mantle. Major areas of research emphasis now include paleoclimatology, global cycles, hydrology, fluid-rock interaction, and petrology. The laboratory is an open facility and since its inception has generated over 90,000 stable isotope determinations on samples of interest to industry and academia.
PERSONNEL
Professors
R.T. Gregory, PhD (1981) California Institute of Technology; BA (1974)
University of California, San Diego
[email:
bgregory@mail.smu.edu]
C.J. Yapp, PhD (1980) California Institute of Technology; BS (1971)
University Wisconsin
[email:
yapp@mail.smu.edu]
Research Associates
K.M. Ferguson, PhD (1990) Southern Methodist University; MS (1984) Arizona
State University; BA (1977) Potsdam State College
[email:
kferg@mail.smu.edu]
I. Richards, PhD (1994) University of Tennessee; BSC[Hon.] (1985) Monash
University, Australia.
[email:
irichard@mail.smu.edu]
EXTRACTION LINES/SAMPLE PREPARATION FACILITIES
MASS SPECTROMETERS
Commissioned: 1982, modified 1993
Permanent magnet, triple-collector CO2, HD collector, microvolume inlet system
Rebuilt at the Bremen FMAT factory, 1989; recommissioned: 1989
Electromagnet configuration, multiple-sample inlet system, 6
fixed Faraday collectors for CO2, N2, and O2,
Commissioned: 1994
Electromagnet configuration, multiple-sample inlet system, GC-interface for
peak integration mode,
6
fixed Faraday collectors for CO2, N2, and O2, separate HD collector assembly,
differentially pumped for GC-mass spectrometry
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