Morphology and composition of the surface of Mars: Mars Odyssey THEMIS results

被引：289

作者：

Christensen, PR ^{[1
]}

Bandfield, JL

Bell, JF

Gorelick, N

Hamilton, VE

Ivanov, A

Jakosky, BM

Kieffer, HH

Lane, MD

Jakosky, BM

Kieffer, HH

Lane, MD

Malin, MC

McConnochie, T

McEwen, AS

McSween, HY

Mehall, GL

Moersch, JE

Nealson, KH

Rice, JW

Richardson, MI

Ruff, SW

Smith, MD

Titus, TN

Wyatt, MB

机构：

[1] Arizona State Univ, Dept Geol Sci, Tempe, AZ 85287 USA

[2] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA

[3] Univ Hawaii, Hawaii Inst Geophys & Planetol, Honolulu, HI 96822 USA

[4] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[5] Univ Colorado, LASP, Boulder, CO 80309 USA

[6] US Geol Survey, Flagstaff, AZ 86001 USA

[7] Planetary Sci Inst, Phoenix, AZ 85032 USA

[8] Malin Space Sci Syst, San Diego, CA 92191 USA

[9] Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA

[10] Univ Tennessee, Dept Geol Sci, Knoxville, TN 37996 USA

[11] Univ So Calif, Los Angeles, CA 90089 USA

[12] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA

[13] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

来源：

SCIENCE | 2003年 / 300卷 / 5628期

关键词：

D O I：

10.1126/science.1080885

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The Thermal Emission Imaging System (THEMIS) on Mars Odyssey has produced infrared to visible wavelength images of the martian surface that show lithologically distinct layers with variable thickness, implying temporal changes in the processes or environments during or after their formation. Kilometer-scale exposures of bedrockare observed; elsewhere airfall dust completely mantles the surface over thousands of square kilometers. Mars has compositional variations at 100-meter scales, for example, an exposure of olivine-rich basalt in the walls of Ganges Chasma. Thermally distinct ejecta facies occur around some craters with variations associated with crater age. Polar observations have identified temporal patches of water frost in the north polar cap. No thermal signatures associated with endogenic heat sources have been identified.

引用

页码：2056 / 2061

页数：6

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