Earth
and Space Sciences Faculty |
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Anastasia Chopelas |
Areas of Interest:
Experimental and theoretical mineral physics, Petrology
Research Groups:
Mineral
Physics
Education:
Ph.D. Physical Chemistry, UCLA, 1981
Research Interests:
Measurement of the structure, dynamics, and thermophysical properties of
mineral phases vs.pressure and/ or temperature.Experimental techniques:
laser Raman and laser fluorescence spectroscopy in the diamond anvil cell,
x-ray diffraction. The thrust of my research over the last fifteen years
has been investigating thermodynamic and thermoelastic properties of
mineral phases relevant to the Earth and other planetary interiors.
Geophysicists use the values obtained in my laboratories for modeling
planetary interiors, particularly for mineral composition, convection and
temperatures. This methodology also works well for condensed gases.
Developments are currently underway to extend the high pressure
measurements to high temperatures.
Current projects include thermophysical characterization of perovskites
and garnet solid solutions. Experiments are underway on amphiboles and
felspars. Raman spectroscopy while laser heating in a diamond anvil cell
is being set up with a new single monochromator for temperature
measurement.
Experimental apparatus: Available in my laboratory
are: a triple monochromator consisting of a half meter double
premonochromator in tandem with a one meter monochromator, a cooled CCD
detector and a confocal microscope. A CO2 laser is online for
heating samples either in or outside of a diamond cell. In addition, the
University of Washington has a large selection of excellent resources for
conducting experimental research, such as, single crystal diffractometers,
microprobes, high resolution microscopy, as well as synthesis
possibilities. These are available for use on our projects.
Publications:
List of Publications
CV for Ana Chopelas
Last Modified:10/05/2005
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Earth and Space Sciences ( Geology, Geophysics, Geological Sciences) University of Washington Johnson Hall 070 • Box 351310 4000 15th Avenue NE • Seattle, WA 98195-1310 Phone 206-543-1190 • Fax 206-543-0489 • Site Info: webmaster@ess.washington.edu • ESS Advising: advising@ess.washington.edu |