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School of Geology and Geophysics |
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George B. Morgan VIElectron Microprobe Operator Ph.D., 1988, University of Oklahoma Office: SEC E110 Areas of InterestElectron Microscopy and Microanalysis, Igneous Petrology, Experimental Geochemistry, Materials Science ResearchI am responsible for operation of the electron microprobe laboratory, and consider a modern electron microprobe to be the most useful tool for characterizing multi-component solid materials. One of the joys of working with such a versatile analytical platform is exposure to materials problems from a great variety of scientific disciplines including not only samples from numerous geological settings, but also diverse materials problems spanning the gamut from identifying the constituents of human kidney stones to investigating the nature or failure of fabricated metallic or electronic components. Courses TaughtElectron Microbeam Methods Faculty Web Pagehttp://research.ou.edu/Microprobe/OUEMPLhome.asp Selected PublicationsMorgan GB VI, Acosta-Vigil A, and London D (2008) Diffusive equilibration between hydrous metaluminous-peraluminous haplogranite liquid couples at 200 MPa (H2O) and alkali transport in granitic liquids. Contributions to Mineralogy and Petrology, 155, 257-269. Acosta-Vigil A, Acosta-Vigil A, London D, Morgan GB VI, and Dewers TA (2006) Dissolution of quartz, albite, and orthoclase in H2O-saturated haplogranitic melt at 200 MPa: Diffusive transport properties of granitic melts at crustal anatectic conditions. Journal of Petrology, 47, 231-254. Morgan GB VI and London D (2005) Phosphorus distribution between potassic alkali feldspar and metaluminous haplogranitic liquid at 200 MPa (H2O): The effect of undercooling on crystal-liquid systematics. Contributions to Mineralogy and Petrology, 150, 386-402. Morgan GB VI and London D (2005) The effect of current density on the electron microprobe analysis of alkali aluminosilicate glasses. American Mineralogist, 90, 1131-1138. Acosta-Vigil A,>London> D, and Morgan GB VI (2005) Contrasting interactions of sodium and potassium with H2O in haplogranitic liquids and glasses at 200 MPa from hydration-diffusion experiments. Contributions to Mineralogy and Petrology, 149, 276-287. Acosta-Vigil A, London D, Morgan GB VI, and Dewers TA (2003) Solubility of excess alumina in hydrous granitic melts in equilibrium with peraluminous minerals at 700o-800oC and 200 MPa, and applications of the aluminum saturation index. Contributions to Mineralogy and Petrology, 146, 100-119. Morgan GB VI and London D (2003) Trace element partitioning at conditions far from equilibrium: Ba and Cs distributions between alkali feldspar and undercooled hydrous granitic liquid at 200 MPa. Contributions to Mineralogy and Petrology, 144, 722-738. Acosta-Vigil A, London D, Dewers TA, and Morgan GB VI (2002) Dissolution of corundum and andalusite in H2O-saturated haplogranitic melts at 800oC and 200 MPa: Constraints on diffusivities and the generation of peraluminous melts. Journal of Petrology, 43, 1885-1908. Morgan GB VI and London D (1999) Crystallization of the Little Three layered pegmatite-aplite dike, Ramona District, California. Contributions to Mineralogy and Petrology, 136, 310-330. London D, Wolf MB, Morgan GB VI, and MG (1999) Experimental silicate-phosphate equilibria in peraluminous granitic magmas, with a case study of the Albuquerque Batholith at Tres Arroyos, Badajoz, Spain. Journal of Petrology, 40, 215-240. |
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The University of Oklahoma
College of Earth and Energy
School of Geology and Geophysics
100 East Boyd Street Suite 710
Norman, OK 73019
(405) 325-3253 voice
(405) 325-3140 fax