Computer Science
Scientific paper
Jan 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981e%26psl..52..191d&link_type=abstract
Earth and Planetary Science Letters, vol. 52, no. 1, Jan. 1981, p. 191-202. Research supported by the University of Washington
Computer Science
30
Ion Probes, Magma, Moisture Content, Obsidian Glass, Silicates, Thermal Diffusion, Basalt, Diffusivity, Melts (Crystal Growth), Rhyolite, Transport Properties, Volatility, Volcanoes
Scientific paper
Ion microprobe studies of the concentration dependence of the diffusivity of water in obsidian melts are presented. The ion microprobe at Johnson Space Center was calibrated for in situ water determinations on a 10-micron scale for basaltic, albitic and rhyolitic glasses with water contents from 0.2 to 1.8, 6.8 and 3.7 wt % H2O respectively. The microprobe was then used to measure water concentration profiles as a function of distance and time for the diffusion of water into eight partially and completely hydrated rhyolite obsidian cylinders at 850 C and 700 bars total water pressure. On the basis of these measurements, an expression is derived for water diffusivity as an exponential function of melt water concentration.
Delaney John R.
Karsten Jill L.
No associations
LandOfFree
Ion microprobe studies of water in silicate melts - Concentration-dependent water diffusion in obsidian does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Ion microprobe studies of water in silicate melts - Concentration-dependent water diffusion in obsidian, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ion microprobe studies of water in silicate melts - Concentration-dependent water diffusion in obsidian will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1052588