Initial results from the Mini-TES experiment in Gusev crater from the Spirit rover

Philip Christensen; Steven Ruff; R. L. Fergason; A. T. Knudson; S. Anwar; R. E. Arvidson; J. L. Bandfield; D. L. Blaney; C. Budney; W. M. Calvin; T. D. Glotch; M. P. Golombek; N. Gorelick; T. G. Graff; V. E. Hamilton; A. Hayes; J. R. Johnson; H. Y. McSween; G. L. Mehall; L. K. Mehall; J. E. Moersch; R. V. Morris; A. D. Rogers; M. D. Smith; S. W. Squyres; M. J. Wolff; M. B. Wyatt

doi:10.1126/science.1100564

Initial results from the Mini-TES experiment in Gusev crater from the Spirit rover

Philip Christensen, Steven Ruff, R. L. Fergason, A. T. Knudson, S. Anwar, R. E. Arvidson, J. L. Bandfield, D. L. Blaney, C. Budney, W. M. Calvin, T. D. Glotch, M. P. Golombek, N. Gorelick, T. G. Graff, V. E. Hamilton, A. Hayes, J. R. Johnson, H. Y. McSween, G. L. Mehall, L. K. MehallJ. E. Moersch, R. V. Morris, A. D. Rogers, M. D. Smith, S. W. Squyres, M. J. Wolff, M. B. Wyatt

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Abstract

The Miniature Thermal Emission Spectrometer (Mini-TES) on Spirit has studied the mineralogy and thermophysical properties at Gusev crater. Undisturbed soil spectra show evidence for minor carbonates and bound water. Rocks are olivine-rich basalts with varying degrees of dust and other coatings. Dark-toned soils observed on disturbed surfaces may be derived from rocks and have derived mineralogy (±5 to 10%) of 45% pyroxene (20% Ca-rich pyroxene and 25% pigeonite), 40% sodic to intermediate plagioclase, and 15% olivine (forsterite 45% ±5 to 10). Two spectrally distinct coatings are observed on rocks, a possible indicator of the interaction of water, rock, and airfall dust. Diurnal temperature data indicate particle sizes from 40 to 80 μm in hollows to ∼0.5 to 3 mm in soils.

Original language	English (US)
Pages (from-to)	837-842
Number of pages	6
Journal	Science
Volume	305
Issue number	5685
DOIs	https://doi.org/10.1126/science.1100564
State	Published - Aug 6 2004

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Christensen, P., Ruff, S., Fergason, R. L., Knudson, A. T., Anwar, S., Arvidson, R. E., Bandfield, J. L., Blaney, D. L., Budney, C., Calvin, W. M., Glotch, T. D., Golombek, M. P., Gorelick, N., Graff, T. G., Hamilton, V. E., Hayes, A., Johnson, J. R., McSween, H. Y., Mehall, G. L., ... Wyatt, M. B. (2004). Initial results from the Mini-TES experiment in Gusev crater from the Spirit rover. Science, 305(5685), 837-842. https://doi.org/10.1126/science.1100564

Christensen, P , Ruff, S, Fergason, RL, Knudson, AT, Anwar, S, Arvidson, RE, Bandfield, JL, Blaney, DL, Budney, C, Calvin, WM, Glotch, TD, Golombek, MP, Gorelick, N, Graff, TG, Hamilton, VE, Hayes, A, Johnson, JR, McSween, HY, Mehall, GL, Mehall, LK, Moersch, JE, Morris, RV, Rogers, AD, Smith, MD, Squyres, SW, Wolff, MJ & Wyatt, MB 2004, 'Initial results from the Mini-TES experiment in Gusev crater from the Spirit rover', Science, vol. 305, no. 5685, pp. 837-842. https://doi.org/10.1126/science.1100564

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abstract = "The Miniature Thermal Emission Spectrometer (Mini-TES) on Spirit has studied the mineralogy and thermophysical properties at Gusev crater. Undisturbed soil spectra show evidence for minor carbonates and bound water. Rocks are olivine-rich basalts with varying degrees of dust and other coatings. Dark-toned soils observed on disturbed surfaces may be derived from rocks and have derived mineralogy (±5 to 10%) of 45% pyroxene (20% Ca-rich pyroxene and 25% pigeonite), 40% sodic to intermediate plagioclase, and 15% olivine (forsterite 45% ±5 to 10). Two spectrally distinct coatings are observed on rocks, a possible indicator of the interaction of water, rock, and airfall dust. Diurnal temperature data indicate particle sizes from 40 to 80 μm in hollows to ∼0.5 to 3 mm in soils.",

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AU - Morris, R. V.

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AU - Wolff, M. J.

AU - Wyatt, M. B.

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Initial results from the Mini-TES experiment in Gusev crater from the Spirit rover

Abstract

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