Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006geoji.166..435c&link_type=abstract
Geophysical Journal International, Volume 166, Issue 52, pp. 435-437.
Astronomy and Astrophysics
Astronomy
22
Electrical Conductivity, Hydrogen, Mantle, Olivine, Oxygen Fugacity
Scientific paper
Standard Electrical Olivine 3 (SEO3) is a new model of electrical conductivity for olivine as a function of temperature and oxygen fugacity, and is based on a previous study of point defect behaviour in a dunite. That study produced quantitative estimates of mobility and concentration for small polarons and magnesium vacancies as a function of temperature and oxygen fucacity. Unlike earlier SO1 and SO2 models of olivine conductivity, the dunite sample was buffered by pyroxene, and avoided alteration at high temperature. The low-temperature extrapolation produced by SEO3 is in good agreement with SO2, while the high-temperature extrapolation is significantly more conductive, which is in general agreement with many field studies that show the Earth's upper mantle to be more conductive than predicted by SO2 for reasonable temperatures. Plausible variations in mantle oxygen fugacity correspond to about half an order of magnitude variation in electrical conductivity, equivalent to about 100 degrees in temperature.
No associations
LandOfFree
FAST TRACK PAPER: SEO3: A new model of olivine electrical conductivity 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 FAST TRACK PAPER: SEO3: A new model of olivine electrical conductivity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and FAST TRACK PAPER: SEO3: A new model of olivine electrical conductivity will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1143719