David London

Norman R. Gelphman Professor in Geology and Geophysics

Ph.D., 1981, Arizona State University
M.S., 1979, Arizona State University
B.A., 1975, Wesleyan University

Office: SEC 746
Phone: 405-325-7626
Fax: 405-325-3140
E-mail: dlondon@ou.edu

Areas of Interest

Experimental Geochemistry, Mineralogy, Igneous and Metamorphic Petrology, Economic Geology of Metals

Research

My research pertains to the origin and chemical evolution of felsic magmas that solidify as granites, pegmatites, and rhyolites, and to the properties of crystalline and melt phases that promote the transfer of volatile and lithophile trace elements from deep to shallow crustal reservoirs. To date, we have utilized field and analytical methods, plus made extensive use of my experimental lab at OU, to assess the abundance and behavior of H2O, fluorine, boron, and phosphorus, rare alkalis and alkaline earths (Li, Rb, Cs, Be, Sr, Ba) and high field-strength elements (Nb, Sn, Ta) in these magmas. We have mapped out the geochemical cycles of these elements from aluminous migmatite sources, through granite differentiation, to end-stage pegmatites and other granite-associated ore deposits. This work proceeds in an iterative fashion between field and experimental lab studies to develop models or to test hypotheses for the derivation and fractionation of these silicic magmas.

Courses Taught

Physical Geology for Science and Engineering Majors

Gold, Silver and Gemstones

Introduction to Mineral Sciences

Petrology Seminar

Economic Geology – Metallic Deposits

Pegmatites

Faculty Web Page

http://pegmatopia.ou.edu

Selected Publications

1. London, D., Ertl, A., Hughes, J.M., Morgan VI, G.B., Fritz, E.A., and Harms, B.S. (2006) Synthetic Ag-rich tourmaline: structure and chemistry. American Mineralogist, 91, 680-684.

2. Acosta-Vigil, A., London, D., and Morgan, G.B. VI (2006) Experimental partial melting of a leucogranite at 200 MPa H2O and 690-800oC: compositional variability of melts during the onset of H2O-saturated crustal anatexis. Contributions to Mineralogy and Petrology, 151, 539-557.

3. Acosta-Vigil, A., London, D., Morgan, G.B., VI, and Dewers, T.A. (2006) Dissolution of quartz, albite, and orthoclase in H2O-saturated haplogranitic melt at 800°C and 200 MPa: diffusive transport properties of granitic melts at crustal anatectic conditions. Journal of Petrology, 47, 231-254.

4. London, D. (2005) Geochemistry of Alkalis and Alkaline Earths in Ore-Forming Granites, Pegmatites, and Rhyolites. Invited chapter for "Rare-element geochemistry of ore deposits" (Linnen, R. and I. Sampson, eds.). Geological Association of Canada Short Course Handbook, 17, 17-43.

5. Cerný, P., Blevin, P.L., Cuney, M., and London, D. (2005) Granite-related ore deposits. Economic Geology, 100th Anniversary Volume, 337 - 370.

6. Morgan, G.B. VI and London, D. (2005) Phosphorus distribution between potassic alkali feldspar and metaluminous haplogrnaite liquid at 200 MPa (H2O): the effect of undercooling on crystal-liquid systematics. Contributions to Mineralogy and Petrology, 150, 456-471.

7. Morgan, G.B. VI and London, D. (2005) Effect of current density on the electron microprobe analysis of alkali aluminosilicate glasses. American Mineralogist, 90, 1131-1138.

8. Acosta-Vigil#, A., London, D., and Morgan, G.B., 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.

9. London, D. (2005) Granitic pegmatites: an assessment of current concepts and directions for the future. Invited contribution to: "Granitic Systems - State of the Art and Future Avenues" (O.T. Rämö, P.J. Kosunen, L.S. Lauri, and J.A. Karhu, eds), an issue honoring the retirement of Prof. Ilmari Haapala, University of Helsinki. Lithos, 80, 281-303.

10. Acosta-Vigil, A., London, D., Morgan, G.B. VI, and Dewers, T.A. (2003) Solubility of excess aluminum in hydrous granitic melts in equilibrium with peraluminous minerals at 700-800°C and 200 MPa: significance and applications of the aluminum saturation index. Contributions to Mineralogy and Petrology, 146, 100-119.

11. Morgan, G.B. 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.

12. Evensen, J.E. and London, D. (2003) Experimental partitioning of Be and other trace elements between cordierite and silicic melt, and the chemical signature of S-type granite. Contributions to Mineralogy and Petrology, 144, 739-757.

13. London, D. and Evensen, J.M. (2003) Beryllium in silicic magmas and the origin of beryl-bearing pegmatites. Invited chapter for Beryllium: mineralogy, petrology, and geochemistry (E.S. Grew, ed.). Mineralogical Society of America Reviews in Mineralogy & Geochemistry, 50, 445-486.

14. Acosta-Vigil, A., London, D., Dewers, T.A., and Morgan, G.B. 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.

15. Evensen J.M. and London, D. (2002) Experimental silicate mineral/melt partition coefficients for beryllium, and the beryllium cycle from migmatite to pegmatite. Geochimica Cosmochimica Acta, 66, 2239-2265.

16. London, D., Morgan, G.B. VI, and Wolf, M.B. (2001) Amblygonite-montebrasite solid solutions as monitors of fluorine in evolved granitic and pegmatitic melts. American Mineralogist, 86, 225-233.

	School of Geology and Geophysics
Prospective Undergraduates What are Geology and Geophysics? What do Geologists and Geophysicists do? Why do we need Geologists and Geophysicists? You might be a Geologist or Geophysicist if you... Why study Geology and Geophysics at OU? Scholarships Degrees Offered Areas Of Emphasis Prospective Graduate Students Areas of Emphasis Degrees Offered Admissions Assistantships and Fellowships Successful Graduates Field Trips Recruiting Current Students Student Organizations Geology Courses Geophysics Courses OU Course Catalog CEE Student Services Registration Degree Navigator Mission People Faculty Staff Students Research Areas of Emphasis Laboratories Alumni School Policies, Forms, and Archives	David London Norman R. Gelphman Professor in Geology and Geophysics Ph.D., 1981, Arizona State University M.S., 1979, Arizona State University B.A., 1975, Wesleyan University Office: SEC 746 Phone: 405-325-7626 Fax: 405-325-3140 E-mail: dlondon@ou.edu Areas of Interest Experimental Geochemistry, Mineralogy, Igneous and Metamorphic Petrology, Economic Geology of Metals Research My research pertains to the origin and chemical evolution of felsic magmas that solidify as granites, pegmatites, and rhyolites, and to the properties of crystalline and melt phases that promote the transfer of volatile and lithophile trace elements from deep to shallow crustal reservoirs. To date, we have utilized field and analytical methods, plus made extensive use of my experimental lab at OU, to assess the abundance and behavior of H2O, fluorine, boron, and phosphorus, rare alkalis and alkaline earths (Li, Rb, Cs, Be, Sr, Ba) and high field-strength elements (Nb, Sn, Ta) in these magmas. We have mapped out the geochemical cycles of these elements from aluminous migmatite sources, through granite differentiation, to end-stage pegmatites and other granite-associated ore deposits. This work proceeds in an iterative fashion between field and experimental lab studies to develop models or to test hypotheses for the derivation and fractionation of these silicic magmas. Courses Taught Physical Geology for Science and Engineering Majors Gold, Silver and Gemstones Introduction to Mineral Sciences Petrology Seminar Economic Geology – Metallic Deposits Pegmatites Faculty Web Page http://pegmatopia.ou.edu Selected Publications 1. London, D., Ertl, A., Hughes, J.M., Morgan VI, G.B., Fritz, E.A., and Harms, B.S. (2006) Synthetic Ag-rich tourmaline: structure and chemistry. American Mineralogist, 91, 680-684. 2. Acosta-Vigil, A., London, D., and Morgan, G.B. VI (2006) Experimental partial melting of a leucogranite at 200 MPa H2O and 690-800oC: compositional variability of melts during the onset of H2O-saturated crustal anatexis. Contributions to Mineralogy and Petrology, 151, 539-557. 3. Acosta-Vigil, A., London, D., Morgan, G.B., VI, and Dewers, T.A. (2006) Dissolution of quartz, albite, and orthoclase in H2O-saturated haplogranitic melt at 800°C and 200 MPa: diffusive transport properties of granitic melts at crustal anatectic conditions. Journal of Petrology, 47, 231-254. 4. London, D. (2005) Geochemistry of Alkalis and Alkaline Earths in Ore-Forming Granites, Pegmatites, and Rhyolites. Invited chapter for "Rare-element geochemistry of ore deposits" (Linnen, R. and I. Sampson, eds.). Geological Association of Canada Short Course Handbook, 17, 17-43. 5. Cerný, P., Blevin, P.L., Cuney, M., and London, D. (2005) Granite-related ore deposits. Economic Geology, 100th Anniversary Volume, 337 - 370. 6. Morgan, G.B. VI and London, D. (2005) Phosphorus distribution between potassic alkali feldspar and metaluminous haplogrnaite liquid at 200 MPa (H2O): the effect of undercooling on crystal-liquid systematics. Contributions to Mineralogy and Petrology, 150, 456-471. 7. Morgan, G.B. VI and London, D. (2005) Effect of current density on the electron microprobe analysis of alkali aluminosilicate glasses. American Mineralogist, 90, 1131-1138. 8. Acosta-Vigil#, A., London, D., and Morgan, G.B., 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. 9. London, D. (2005) Granitic pegmatites: an assessment of current concepts and directions for the future. Invited contribution to: "Granitic Systems - State of the Art and Future Avenues" (O.T. Rämö, P.J. Kosunen, L.S. Lauri, and J.A. Karhu, eds), an issue honoring the retirement of Prof. Ilmari Haapala, University of Helsinki. Lithos, 80, 281-303. 10. Acosta-Vigil, A., London, D., Morgan, G.B. VI, and Dewers, T.A. (2003) Solubility of excess aluminum in hydrous granitic melts in equilibrium with peraluminous minerals at 700-800°C and 200 MPa: significance and applications of the aluminum saturation index. Contributions to Mineralogy and Petrology, 146, 100-119. 11. Morgan, G.B. 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. 12. Evensen, J.E. and London, D. (2003) Experimental partitioning of Be and other trace elements between cordierite and silicic melt, and the chemical signature of S-type granite. Contributions to Mineralogy and Petrology, 144, 739-757. 13. London, D. and Evensen, J.M. (2003) Beryllium in silicic magmas and the origin of beryl-bearing pegmatites. Invited chapter for Beryllium: mineralogy, petrology, and geochemistry (E.S. Grew, ed.). Mineralogical Society of America Reviews in Mineralogy & Geochemistry, 50, 445-486. 14. Acosta-Vigil, A., London, D., Dewers, T.A., and Morgan, G.B. 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. 15. Evensen J.M. and London, D. (2002) Experimental silicate mineral/melt partition coefficients for beryllium, and the beryllium cycle from migmatite to pegmatite. Geochimica Cosmochimica Acta, 66, 2239-2265. 16. London, D., Morgan, G.B. VI, and Wolf, M.B. (2001) Amblygonite-montebrasite solid solutions as monitors of fluorine in evolved granitic and pegmatitic melts. American Mineralogist, 86, 225-233.