Pyroxenes from Lunar High-Ti Mare Basalts: Oxygen Analysis by Electron Microprobe and Estimates of Ti^3+/Ti^4+

Details Pyroxenes from Lunar High-Ti Mare Basalts: Oxygen Analysis by Electron Microprobe and Estimates of Ti^3+/Ti^4+ Pyroxenes from Lunar High-Ti Mare Basalts: Oxygen Analysis by Electron Microprobe and Estimates of Ti^3+/Ti^4+

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27.1249s&link_type=abstract

Lunar and Planetary Science, volume 27, page 1249

Other

Basalts: Lunar Mare, Microprobe Analysis, Oxygen Analysis, Pyroxene: Analysis, Pyroxenes: Lunar

Scientific paper

Analysis of oxygen on the electron microprobe has been seldom done in the past. The measurement of oxygen (and other light elements) has its share of unique problems, such as weak signal due to the low fluorescence yield of low atomic numbers and the high absorption of their X-rays, along with other problems that have lead to the usual condition in mineral analysis of calculating oxygen from the stoichiometry of the mineral analyzed. However, with the advent of synthetic multi-layer analyzing crystals with large d-spacing and improved matrix correction methods, the direct measurement of oxygen can yield additional information. For example, by measuring O on hydrous minerals and glasses, close estimates of H2O can reached. In anhydrous minerals, in which one or more constituents have variable oxidation states, the valance states may be determined by calculation from the oxygen analysis. Here we attempt to measure oxygen in pyroxene from Apollo 17 high-Ti mare basalt 74275. This a quickly-cooled basalt with TiO2 ~ 13 wt% and TiO2 in pyroxene >6.0 wt%. Our goal in this study is to estimate Ti3+/Ti4+.

Affiliated with

Also associated with

No associations

Rating

Pyroxenes from Lunar High-Ti Mare Basalts: Oxygen Analysis by Electron Microprobe and Estimates of Ti^3+/Ti^4+ 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 Pyroxenes from Lunar High-Ti Mare Basalts: Oxygen Analysis by Electron Microprobe and Estimates of Ti^3+/Ti^4+, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pyroxenes from Lunar High-Ti Mare Basalts: Oxygen Analysis by Electron Microprobe and Estimates of Ti^3+/Ti^4+ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1614787