Other
Scientific paper
Mar 1963
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1963gecoa..27..273m&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 27, Issue 3, pp.273-278
Other
3
Scientific paper
The majority of terrestrial rocks crystallized in the field of higher oxides such as magnetite. In these rocks Fe 2+ /(Fe 2+ + Mg) of the ferromagnesian silicates generally decreases with increasing Po 2 . The majority of known meteorites on the other hand crystallized in the field of metallic Fe-Ni solid solutions. In these meteorites Fe 2+ /(Fe 2+ + Mg) of the silicates increases with Po 2 whereas Fe/(Fe + Ni) of the metal phase decreases. The latter relations in meteorites were first recognized by Prior (1916). The empirical curve (Ringwood, 1961) through a plot of Fe/(Fe + Ni) of the metal against Fo/(Mg + Fe 2 +) of the silicates is similar in form to the curve produced by the equation of condition for the oxidative process at a constant composition of Si, Mg, Ni and total Fe. This relation lends additional support to the validity of Prior's rule. The reactions and corresponding equations of equilibrium which form the energetic and stoichiometric basis of discussion illustrate the oxidative process in the fields of magnetite and metal.
No associations
LandOfFree
A comparison of oxidative equilibria in meteorites and terrestrial rocks 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 A comparison of oxidative equilibria in meteorites and terrestrial rocks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A comparison of oxidative equilibria in meteorites and terrestrial rocks will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1044290