|
 Lee
Riciputi
P.O. Box 2008, MS 6375
Oak Ridge, TN 37831-6375
Position: Group
Leader
Contact Information:
Phone: 1-865-574-2449
Fax:
1-865-574-6906
Email
Field
of Specialization:
Isotope and Analytical Chemistry and Geochemistry
Research
Interests:
 Development,
improvement and application of high precision isotope ratio techniques
(sector SIMS, TIMS and ICP-MS), particularly for small sample analysis.
Understanding
and controlling the causes of mass bias and other instrumental artifacts
in these techniques.
Use
of isotope ratios (stable and radiogenic) and trace elements to
quantify mass transfer processes operating at nano- to global- scales,
and applying these techniques to various systems, including geologic,
environmental, material, and biologic.
Application
of SIMS and TIMS to nuclear safeguards and counterterrorism.
Clean
chemical extraction/purification processes in preparation for mass
spectrometry.
Fluid-rock
interaction processes in diagenetic, hydrothermal, and ore-forming
environments, and in particular, using the microscale chemical/isotopic
record to study these processes.
Using
isotope disequilibrium as a “kinetic clock” to study the duration
of natural fluid-rock interaction events.
Experimental
determination of isotope fractionation factors and rates of isotope
exchange.
Understanding
the mechanisms and factors controlling the rate of glass (obsidian)
hydration, and applying this knowledge to develop new tools to age
date artifacts from archaeological sites.
Extrapolating
this knowledge to better constrain long-term behavior of waste glass
forms.
Professional
Background
Education
| 1991 |
Ph.D. |
Geology |
University of Wisconsin, Madison, WI |
| 1988 |
M.S. |
Geology |
University of Wisconsin, Madison, WI |
| 1985 |
B.S. |
Geology |
Carleton College, Northfield, MN
Distinction, Cum
Laude |
Doctoral
dissertation: “Petrology and Nd, Sr and Pb Isotopes of the
Central San Juan Caldera Cluster, Colorado”
Employment
| 2001 to present |
Group Leader
|
Chemical and Isotope
Mass Spectrometry Group, Oak Ridge National Laboratory |
| 1999
to 2001 |
Group Leader
|
Inorganic Mass Spectrometry
Group,
Oak Ridge National Laboratory
|
| 1997 to present |
Research
Professor
|
Department of
Chemistry,
University of Tennessee |
| 1993 to 1999 |
Research
Staff
|
Inorganic Mass
Spectrometry Group,
Oak Ridge National Laboratory |
Honors & Awards
Oak Ridge National Laboratory, U.T. Battelle Technical Achievement
Award, 2000
Oak Ridge National Laboratory, U.T. Battelle Technical Achievement
Award, 1995
National
Science Foundation Graduate Fellow, 1986-1990
Professional
Activities
Consultant, IAEA Particle Analysis Working Group;
Consultant, IAEA Bulk Environmental Sampling Working Group; NSF
Graduate Minority Fellowships panel; NSF Graduate Fellowships panel;
NSF Graduate Fellowships Panel, NATO Post-graduate Fellowship Panel,
co-taught short course segment at SEG Microanalysis workshop, NASA
Exobiology Panel Workshop. Reviewer: Geology, Contributions to Mineralogy
and Petrology, Earth and Planetary Science Letters, Geochimica et
Cosmochimica Acta, American Mineralogist, International Journal
of Mass Spectrometry, Analytical Chemistry, Chemical Geology (Isotope
Geoscience), Economic Geology, Rapid Communications in Mass Spectrometry.
Reviewer for NSF (Instrumentation & Facilities, Geochemistry
& Petrology), DOE (Earth Sciences), and NASA Proposals
Presentations
85 presentations at conferences, universities and
companies (29 invited presentations)
Publications
49 referred journal articles and book chapters, >50
symposium proceedings and reports.
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