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Infrared Microspectroscopy in Earth and Planetary Science: Recent Developments, Including In Situ High-Pressure, High-Temperature Techniques

Published online by Cambridge University Press:  02 July 2020

A.M. Hofmeister
A.M. Hofmeister*
Affiliation:
Department of Earth and Planetary Sciences, Washington University, 1 Brookings Drive, St. Louis, MO, 63130
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Extract

Vibrational spectroscopy is used in Earth science for both quantitative and qualitative analysis. This report focuses on infrared (IR) spectroscopy, although similar efforts are on-going in Raman spectroscopy.

Qualitative studies utilize the fact that the vibrational spectrum is a characteristic of a material: hence comparison to a set of standards allows for identification of the phase. Most of these types of studies in Earth science involve macrosamples, but measurements of microsamples from meteorites are on interest in order to identify the structure of SiC inclusions and the type of organic compounds in interplanetary dust. As most of these samples are micron sized, which is below the diffraction limit for the mid-IR, the approach has been to compress the sample using a diamond anvil cell (DAC) into a disk of sub-micron thickness, adhere the sample to a KBr plate, and to subsequently remove the disk from the DAC and obtain spectra with the aid of an FTIR microscope.

Type
Optical Microanalysis
Information
Microscopy and Microanalysis , Volume 3 , Issue S2: Proceedings: Microscopy & Microanalysis '97, Microscopy Society of America 55th Annual Meeting, Microbeam Analysis Society 31st Annual Meeting, Histochemical Society 48th Annual Meeting, Cleveland, Ohio, August 10-14, 1997 , August 1997 , pp. 857 - 858
Copyright
Copyright © Microscopy Society of America 1997

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References

1Hofmeister, A.M.Phys. Chem. Mineral 14 (1987) 499.10.1007/BF00308285CrossRefGoogle Scholar
2Hofmeister, A.M.Phys. Chem. Mineral (1997) in press.Google Scholar
3McAloon, B.P.and Hofmeister, A.M.. American Mineralogist 78 (1993) 957.Google Scholar
4Lu, R., Hofmeister, A.M., and Wang, Y.J. Geophy. Res. 99 (1994) 11795.10.1029/94JB00501CrossRefGoogle Scholar
5Hofmeister, A.M., in A Practical Guide to Infrared Microspectroscopy. Humecki, H.J. (editor). New York, Marcel Dekker (1995) 377.Google Scholar
6Rossman, G.R., in Spectroscopic Methods in Mineralogy and Geology, Reviews in Mineralogy, 18, Hawthorne FC(ed). Washington D.C.:Mineralogical Society of America (1988) 193.10.1515/9781501508974-008CrossRefGoogle Scholar
7Young, T.E., Green, H.W.,Hofmeister, A.M., and Walker, D., Phys. Chem. Min. 19,(1993) 409;10.1007/BF00202978CrossRefGoogle Scholar
8Cynn, H., Hofmeister, A.M., Burnley, P.C., and Navrotsky, A., Phys. Chem. Minerals 23,(1996)361.10.1007/BF00199502CrossRefGoogle Scholar
9Bell, D.R. and Rossman, G.R., Science 255, (1992) 1391.10.1126/science.255.5050.1391CrossRefGoogle Scholar
10Kohlstedt, D.L., Keppler, H., and Rubie, D.C., Contrib. Mineral. Petrol. 123, (1996) 345.10.1007/s004100050161CrossRefGoogle Scholar
11Shen, A. and Keppler, H., Amer. Mineral. 80, (1995) 1335.10.2138/am-1995-11-1223CrossRefGoogle Scholar