FIGURE 1. CRISM and laboratory reflectance spectra showing hydrated silicate mineral diversity.

From the following article:

Hydrated silicate minerals on Mars observed by the Mars Reconnaissance Orbiter CRISM instrument

John F. Mustard, S. L. Murchie, S. M. Pelkey, B. L. Ehlmann, R. E. Milliken, J. A. Grant, J.-P. Bibring, F. Poulet, J. Bishop, E. Noe Dobrea, L. Roach, F. Seelos, R. E. Arvidson, S. Wiseman, R. Green, C. Hash, D. Humm, E. Malaret, J. A. McGovern, K. Seelos, T. Clancy, R. Clark, D. D. Marais, N. Izenberg, A. Knudson, Y. Langevin, T. Martin, P. McGuire, R. Morris, M. Robinson, T. Roush, M. Smith, G. Swayze, H. Taylor, T. Titus & M. Wolff

Nature 454, 305-309(17 July 2008)

doi:10.1038/nature07097

BACK TO ARTICLE

a, CRISM reflectance spectra from 1.0 to 2.6 mum used in the spectral ratio (s1/s2) for spectrum 4 in b. b, Stacked spectral ratios: (1) from Mawrth Vallis, green (HRL0000285A); (2) from the southern highlands, red (FRT00035DB); (3) from Nili Fossae, blue (FRT00003E12); (4) from Nili Fossae, black (FRT00050F2); (5) from Nili Fossae, magenta (FRT00003FB9); (6) from Nili Fossae, orange (HRS0002FC5). Spectra were selected on the basis of strong BD2210 and D2300 parameter values. Vertical lines are placed at 1.4, 2.2 and 2.3 mum. c, Stacked library reflectance spectra of minerals with similar absorption features. The hydrated silica is an altered, hydrated volcanic ash.

Download file

If the slide opens in your browser, select "File > Save As" to save it.

Download PowerPoint slide (622K)
Figures & Tables index

Slides may be downloaded for educational use, according to the terms described in Nature Publishing Group's licensing policy.

BACK TO ARTICLE