Midinfrared Multi-technique Spectroscopy of Synthetic Olivines (Forsterite to Fayalite)

Details Midinfrared Multi-technique Spectroscopy of Synthetic Olivines (Forsterite to Fayalite) Midinfrared Multi-technique Spectroscopy of Synthetic Olivines (Forsterite to Fayalite)

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufm.p23a1232l&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #P23A-1232

Physics

[3620] Mineralogy And Petrology / Mineral And Crystal Chemistry, [3672] Mineralogy And Petrology / Planetary Mineralogy And Petrology, [3934] Mineral Physics / Optical, Infrared, And Raman Spectroscopy, [5464] Planetary Sciences: Solid Surface Planets / Remote Sensing

Scientific paper

Olivine minerals are one of the most dominant minerals in the solar system and their chemistry is highly variable, as is the chemistry of many naturally occurring minerals. Olivines that range in composition from Mg-bearing (forsterite [Fo100], Mg2SiO4) to Fe-bearing (fayalite [Fo0], Fe2SiO4) can have any amount of substitution of those 2 cations in this common binary solid solution series. Changes in chemistry across this binary series cause the structure of the mineral to be affected, in turn affecting the appearance of the midinfrared spectra thereof that are governed by the vibrations of the constituent molecules. Here, synthetic olivine samples ranging in composition from forsterite (Mg2SiO4) to fayalite (Fe2SiO4) were analyzed using midinfrared thermal emission, midinfrared specular and diffuse reflectance, and midinfrared attenuated total reflectance spectroscopies to study the affects of Mg-Fe solid solution on the spectra acquired. Our findings suggest that for each spectroscopic method, features in the spectra systematically grade from one endmember (e.g., forsterite) at higher frequencies to the other (e.g., fayalite) at lower frequencies and that each spectrum is diagnostic of the chemistry of the sample across the entire chemical continuum. The range of olivine spectra generated from this work can be used to interpret hand-sample spectra (of rocks, sediments, or meteorites) and remote-sensing spectra of Earth and other planetary surfaces, as well as of asteroids or dead comets, and can help to identify specific olivine composition.

Affiliated with

Also associated with

No associations

Rating

Midinfrared Multi-technique Spectroscopy of Synthetic Olivines (Forsterite to Fayalite) 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 Midinfrared Multi-technique Spectroscopy of Synthetic Olivines (Forsterite to Fayalite), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Midinfrared Multi-technique Spectroscopy of Synthetic Olivines (Forsterite to Fayalite) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1768972