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Mid-infrared (5–100 μm) reflectance spectra and optical constants of ten phyllosilicate minerals

Glotch, Timothy D. and Rossman, George R. and Aharonson, Oded (2007) Mid-infrared (5–100 μm) reflectance spectra and optical constants of ten phyllosilicate minerals. Icarus, 192 (2). pp. 605-622. ISSN 0019-1035. doi:10.1016/j.icarus.2007.07.002.

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We have derived the real and imaginary indices of refraction for 10 phyllosilicate minerals—montmorillonite, beidellite, nontronite, hectorite, saponite, illite, illite–smectite (60/40 interlayered) kaolinite, halloysite, and serpentine—from 100–2000 cm^(−1) (5–100 μm) at 2 cm^(−1) spectral sampling using classical Lorentz–Lorenz dispersion theory. We present the real and imaginary indices and the oscillator parameters with which they were modeled. Use of these optical constants will aid in the modeling of thermal infrared spectra of planets, asteroids, interplanetary and interstellar dust, and protoplanetary disks around nearby stars.

Item Type:Article
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Rossman, George R.0000-0002-4571-6884
Aharonson, Oded0000-0001-9930-2495
Additional Information:© 2007 Elsevier Inc. Received 19 March 2007; revised 18 June 2007; Available online 15 August 2007. We thank J. Michalski for loaning well characterized phyllosilicate samples for our reflectance measurements. We also thank Ted Roush and Ed Cloutis for thorough reviews that improved the manuscript. This work was supported by the NASA Mars Fundamental Research Program.
Funding AgencyGrant Number
NASA Mars Fundamental Research ProgramUNSPECIFIED
Subject Keywords:Spectroscopy; Infrared observations; Mars; Asteroids, observations; Disks; Interplanetary dust
Issue or Number:2
Record Number:CaltechAUTHORS:20130125-081043525
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Official Citation:Timothy D. Glotch, George R. Rossman, Oded Aharonson, Mid-infrared (5–100 μm) reflectance spectra and optical constants of ten phyllosilicate minerals, Icarus, Volume 192, Issue 2, 15 December 2007, Pages 605-622, ISSN 0019-1035, 10.1016/j.icarus.2007.07.002.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36579
Deposited By: Tony Diaz
Deposited On:25 Jan 2013 21:34
Last Modified:09 Nov 2021 23:23

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