PIA06772: 'Clovis' in Color
 Target Name:  Mars
 Is a satellite of:  Sol (our sun)
 Mission:  Mars Exploration Rover (MER)
 Spacecraft:  Spirit
 Instrument:  Alpha Particle X-ray Spectrometer 
Panoramic Camera 
 Product Size:  1024 x 1024 pixels (w x h)
 Produced By:  JPL
 Full-Res TIFF:  PIA06772.tif (2.967 MB)
 Full-Res JPEG:  PIA06772.jpg (126.1 kB)

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Original Caption Released with Image:

figure 1 for PIA006772
Figure 1

This approximate true-color image taken by the Mars Exploration Rover Spirit shows the rock outcrop dubbed "Clovis." The rock was discovered to be softer than other rocks studied so far at Gusev Crater after the rover easily ground a hole into it with its rock abrasion tool. This image was taken by the 750-, 530- and 480-nanometer filters of the rover's panoramic camera on sol 217 (August 13, 2004).

Elemental Trio Found in 'Clovis'
Figure 1 above shows that the interior of the rock dubbed "Clovis" contains higher concentrations of sulfur, bromine and chlorine than basaltic, or volcanic, rocks studied so far at Gusev Crater. The data were taken by the Mars Exploration Rover Spirit's alpha particle X-ray spectrometer after the rover dug into Clovis with its rock abrasion tool. The findings might indicate that this rock was chemically altered, and that fluids once flowed through the rock depositing these elements.

Image Credit:
Graph Credit: NASA/JPL/Cornell/Max Planck Institute

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