Physics
Scientific paper
Mar 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jgr....98.5301m&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 98, no. E3, p. 5301-5307.
Physics
9
Iron, Manganese, Meteoritic Composition, Olivine, Ureilites, Pyroxenes, Reduction (Chemistry), Meteorites, Stony Meteorites, Achondrites, Ureilites, Alh Meteorites, Antarctic Meteorites, Alha77257, Manganese Oxide, Olivine, Mineralogy, Oxygen, Zoning, Laboratory Studies, Samples, Meteorite, Thermal Effects, Microprobe Methods, Reduction, Abundance, Composition, Experiments, Melting, Cooling, Temperature, Chemistry, Partition Coefficient
Scientific paper
An electron probe microanalyzer is used to measure the Mn, Fe, and oxygen zoning profiles of olivines in the ALHA 77257 ureilite. This is done to study the effects of reduction on the Mn-Fe value, as ureilite olivines exhibit thin reduced rims. Since the Mn content gradually increases toward the rim of ureilite olivines, while the Fa (= 100 x Fe/(Mg + Fe), mol percent) component decreases, the Mn-Fe content of olivine is likely related to redox conditions. The results of melting experiments suggest that the Mn-Fe positive correlation is related to temperature and that the negative correlation of Mn-Fe in olivine and low-Ca pyroxene is related to reduction.
Duke Michael B.
Fujii Nobuhiko
Furuta Takashi
Lofgren Gary E.
McKay David S.
No associations
LandOfFree
The Mn-Fe negative correlation in olivines in ALHA 77257 ureilite 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 The Mn-Fe negative correlation in olivines in ALHA 77257 ureilite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Mn-Fe negative correlation in olivines in ALHA 77257 ureilite will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1446540