We present experimental results showing that basalt is oxidized in
gas mixtures with CO number densities approximately equal to those
at the surface of Venus. Although the gas mixtures have CO/CO2 ratios
falling inside the magnetite stability field, Mossbauer spectroscopy
shows that hematite and Fe3+ in pyroxene are produced in the oxidized
basalt, The results suggest that the red color observed at several
Venera landing sites is due to sub-aerial oxidation of Fe2+-bearing
basalt on the surface of Venus, and that hematite, instead of magnetite,
is present on the surface of Venus. (C) 1995 Academic Press, Inc.
%0 Journal Article
%1 Fegley1995
%A Fegley, B.
%A Klingelhofer, G.
%A Brackett, R. A.
%A Izenberg, N.
%A Kremser, D. T.
%A Lodders, K.
%D 1995
%J Icarus
%K MARS MOSSBAUER; VOLCANISM;
%N 2
%P 373--383
%T Basalt oxidation and the formation of hematite on the surface of Venus
%V 118
%X We present experimental results showing that basalt is oxidized in
gas mixtures with CO number densities approximately equal to those
at the surface of Venus. Although the gas mixtures have CO/CO2 ratios
falling inside the magnetite stability field, Mossbauer spectroscopy
shows that hematite and Fe3+ in pyroxene are produced in the oxidized
basalt, The results suggest that the red color observed at several
Venera landing sites is due to sub-aerial oxidation of Fe2+-bearing
basalt on the surface of Venus, and that hematite, instead of magnetite,
is present on the surface of Venus. (C) 1995 Academic Press, Inc.
@article{Fegley1995,
abstract = {We present experimental results showing that basalt is oxidized in
gas mixtures with CO number densities approximately equal to those
at the surface of Venus. Although the gas mixtures have CO/CO2 ratios
falling inside the magnetite stability field, Mossbauer spectroscopy
shows that hematite and Fe3+ in pyroxene are produced in the oxidized
basalt, The results suggest that the red color observed at several
Venera landing sites is due to sub-aerial oxidation of Fe2+-bearing
basalt on the surface of Venus, and that hematite, instead of magnetite,
is present on the surface of Venus. (C) 1995 Academic Press, Inc.},
added-at = {2009-11-03T20:21:25.000+0100},
author = {Fegley, B. and Klingelhofer, G. and Brackett, R. A. and Izenberg, N. and Kremser, D. T. and Lodders, K.},
biburl = {https://www.bibsonomy.org/bibtex/27e40d9ad8f32353cccc99ba24319c9d0/svance},
interhash = {59f447d748bba502fb4e035462d292db},
intrahash = {7e40d9ad8f32353cccc99ba24319c9d0},
journal = {Icarus},
keywords = {MARS MOSSBAUER; VOLCANISM;},
number = 2,
owner = {svance},
pages = {373--383},
timestamp = {2009-11-03T20:21:46.000+0100},
title = {Basalt oxidation and the formation of hematite on the surface of Venus},
volume = 118,
year = 1995
}