Department of Geology - Portland State University
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Research Page for Dr. Melinda L. Hutson

Bright-field transmission electron microscope image of dislocations in an olivine grain in the MIL 99301 chondrite. Red lines (and gb) indicate grain boundaries.  A subgrain boundary can be seen in the upper right (where b = ?).

Back-scattered electron image of fragmented chondrules in the Buzzard Coulee chondrite.  Opaque minerals are white, olivine is light gray, pyroxene is dark gray, and feldspar is very dark gray to black.

Research about processes occurring in the early solar system:
  • Deformation and thermal histories of chondritic meteorites based on olivine microstructures-- examining the shock and annealing in chondrites with the aid of transmission electron microscopy [Hutson et al. (2007b), Hutson et al. (2009a)]
  • Aggregational olivine inclusions in chondrites-- how early-formed dust evolved in the solar system and how it relates to other primitive material (chondrules and CAIs) [Ruzicka et al. (2008)]
  • Relict olivine grains in chondrules-- the chemical, isotopic, physical and thermal processing of chondrules as revealed by incompletely melted olivine grains in chondrules [Ruzicka et al. (2007), Ruzicka et al. (2008)]
  • Partly shock-melted chondritic meteorites-- examining the effects of shock on the textures and chemistry of chondritic meteorites and their components [Hutson et al. (2007a)]
Research regarding the classification of meteorites:

Last Updated: March 25, 2009