Stable Isotope Geochemistry Laboratory
Dept.
Earth & Environmental Sciences, Lehigh University
Above:
Finnigan
MAT 252, laser fluorination extraction line, Gas Bench II carrier gas
system.
For
a brief description of other lab hardware and capabilities, click here. This laboratory
will soon be rebuilt in Lehigh University's new STEPS
building.
Present
Research
Group Members
Gray
E. Bebout [Professor;
geb0@lehigh.edu; web page]
Bruce D. Idleman [Senior Research Scientist; bdi2@lehigh.edu]
Lauren Anderson
[M.S. Student, Lehigh University]
Active
Research Laboratory Collaborators
Linda
Godfrey [Rutgers University]
Ralf Halama [Kiel Universität]
Maureen Feineman and Cici Cruz-Uribe [Pennsylvania State Univ.]
Ian Buick [Stellenbosch Univ., South Africa]
Student
Group Members from Recent Past (since 2000)
Seth Sadofsky [Ph.D. completed in 2001; now at Dept. Environ. Quality,
Eugene, OR]
Carolyn Brown [M.S. Student, Lehigh University]
Long Li [recent
Ph.D. Student, now at University of Toronto]
Robbie King [recent Ph.D. Student, recently at Washington State
University]
Andrew Gonyo [M.S. Student, Lehigh University; co-advised by Zicheng
Yu]
Annie Palya [M.S. Student, Lehigh University]
OPPORTUNITIES
FOR NEW
GRADUATE STUDENTS
Some Ongoing
Projects Involving
Stable Isotopes
Experimentation
with methods for determining N isotope compositions of silicates
(carrier gas methods, laser extractions; contact G. E.
Bebout, B. D. Idleman)
Biogeochemical
cycling of N and use of N isotopes as tracers of fluid-rock
processes
- N incorporation into cyclosilicates (beryl,
cordierite)
- N-C behavior during metasedimentary partial
melting in the
continental crust
(w/ Annie Palya, Ian Buick, Univ.
Stellenbosch; see abstract for
2008 Goldschmidt Conf.)
- deep subduction of N as expressed in phengite
concentration and isotope composition
(w/ Ralf Halama, Kiel Univ., and
Timm
John, Univ. Münster)
- microbial activity in modern and ancient seafloor
basalts
(w/ Neil Banerjee, Univ. W. Ontario)
- N behavior/cycling in Archean sedimentary suites
(w/ Linda
Godfrey, Rutgers Univ.)
- N record of fluid flow in Karoo Basin, South
Africa (w/
Henrik Svensen, Univ. Norway, Oslo)
C
and N
isotopes in reconstruction of recent paleoclimate, tree rings, lake
sediments
(w/ Zicheng Yu,
Lehigh University)
-
White Lake, New Jersey (Li et al., GCA, 2008), high-resolution work by
Cheng Zhao)
- Kepler and Reed Lakes, Alaska (work done by Andrew
Gonyo)
- Tree rings in temperate forests, Pennsylvania and
New Jersey (with Long Li, Univ.
Toronto; Andrew Allen and
Tom Stretton, former Lehigh undergraduate students)
Synorogenic
fluid flow
in the Idaho-Montana and Appalachian thrust belts
- Idaho-Montana thrust belt, w/ David Anastasio, Adrienne Rygel,
recent
M.S.
student,
Lehigh University (see Anastasio
et al.,
2004, AJS; Rygel et
al., 2006,
Geofluids)
- Appalachians, W. Virginia, with Mark Evans, Central Connecticut
State University, and
Carolyn Brown, recent M.S.
student, Lehigh
University)
Nitrogen-carbon inventories in deep-sea
sediment sections outboard of modern
trenches; ODP Leg 185
(Izu-Bonin-Mariana Margin), ODP Leg 205
(Central America),
and IODP Exp. 322
(Nankai)
- Sadofsky and Bebout, 2004, G-cubed;
Li and Bebout,
2005, JGR; Li and
Bebout, 2006,
ODP SR)
Nitrogen inventory in deep-sea oceanic
crust (Sites 801, 1149, and other locations)
- Li et al. (2007; Geochim. Cosmochim. Acta)
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Page last
updated 9-05-09
G. E. Bebout