Rheology of the Lower Crust and Mantle and Deformation Textures

Julie Newman Newman@geo.tamu.edu

Crustal and mantle rheologies are important to plate motions and asthenosphere convection. In turn, these rheologies depend on thermodynamic conditions, water, and fluid flow during deformation. Ongoing collaborative research projects include studies of naturally deformed mantle material with an emphasis on determining the dominant deformation mechanism(s).

Student Research: Nathan E. Davis MS Candidate, Thesis Research in Progress "Experimental Deformation of Natural and Synthetic Dolomite" Funding: NSF EAR Grant No. 0107078, 6/01/01-5/31/03, Extended to 5/31/04 Experimental Deformation of Dolomite and Mechanisms of Flow in the Calcium-Magnesium Carbonate System, $145,430

Publications and Presentations: Davis, N.E., Newman, J., and Kronenberg, A.K. (2003) High Temperature Deformation of Stoichiometric Dolomite, EOS Trans. AGU, 84 to be presented at the Fall 2003 AGU Meeting, San Francisco, S22A-0433, Dec. 9 Kronenberg, A.K., Davis, N.E., Wheelock, P., Newman, J. (2003) Grain Growth Kinetics of Dolomite and Magnesite, EOS Trans. AGU, 84 to be presented at the Fall 2003 AGU Meeting, San Francisco, T41B-05, Dec. 11

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funding