Mathematics – Logic
Scientific paper
Aug 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....9514481s&link_type=abstract
(American Geophysical Union and Geological Society of America, International Conference on Mars, 4th, Tucson, AZ, Jan. 10-13, 19
Mathematics
Logic
8
Absorption Spectra, Crystal Structure, Infrared Spectra, Mars Surface, Mineral Deposits, Carbonates, Planetary Composition, Sodium Compounds, Sulfates
Scientific paper
Near-IR and mid-IR spectra of 27 scapolites with a wide range of compositions were compared to the features of the 2.35-micron band absorption system that was recently discovered in reflectance spectra of Mars. Results suggest that the 2.36-micron features are due to the presence of small amounts (about 0.5 wt pct each) of HCO3(-) and HSO4(-) in the anion sites of a scapolite. Five of the scapolites (including two meionite and three mizzonite samples) showed absorption features unique to HCO3(-) and HSO4(-). It was determined that the features of the 2.36-micron-centered system are produced by a disordered anion site occupancy and that the band intensity also depends on the HCO3(-)/HSO4(-) ratio. It was found (Clark et al., 1990) that HCO3(-) and HSO4(-) bearing minerals other than scapolites do not exhibit spectral features of the scapolite.
Clark Roger Nelson
Swayze Gregg A.
No associations
LandOfFree
Infrared spectra and crystal chemistry of scapolites - Implications for Martian mineralogy 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 Infrared spectra and crystal chemistry of scapolites - Implications for Martian mineralogy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infrared spectra and crystal chemistry of scapolites - Implications for Martian mineralogy will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1128782