Measurements of the Activity of dissolved H2O in an Andesite Melt

Gordon M Moore1, Jack P Touran1, Xiaofei Pu2, Katherine A Kelley3, Elizabeth Cottrell4 and Mark S Ghiorso5, (1)University of Michigan Ann Arbor, Ann Arbor, MI, United States, (2)University of Michigan Ann Arbor, Ann Arbor, United States, (3)University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States, (4)Smithsonian, NMNH, Department of Mineral Sciences, Washington, DC, United States, (5)OFM Research, Seattle, United States