Detail View: NASA Planetary Photo Journal Collection: Churned-Up Rocky Debris and Dust (False Color)

Title: 
Churned-Up Rocky Debris and Dust (False Color)
Original Caption Released with Image: 
NASA's Mars Exploration Rover Spirit has been analyzing sulfur-rich rocks and surface materials in the "Columbia Hills" in Gusev Crater on Mars. This image shows rocky debris and dust, which planetary scientists call "regolith" or "soil," that has been churned up by the rover wheels. This 40-centimeter-wide (16-inch-wide) patch of churned-up dirt, nicknamed "Paso Robles," contains brighter patches measured to be high in sulfur by Spirit's alpha particle X-ray Spectrometer. Spirit's panoramic camera took this false-color image on martian day, or sol, 400 (Feb. 16, 2005), using filters at wavelengths of 750, 530, and 430 nanometers. Darker red hues in the image correspond to greater concentrations of oxidized soil and dust. Whiter and bluer hues correspond to sulfur-rich deposits that are not as heavily coated with soils or are not as highly oxidized.
Image Credit: 
NASA/JPL/Cornell
Produced By: 
Cornell University
Mission: 
Mars Exploration Rover (MER)
Spacecraft: 
Spirit
Target Name: 
Mars
Is a satellite of: 
Sol (our sun)
Instrument: 
Panoramic Camera
Product Size: 
1024 samples x 1024 lines
facet_what: 
Alpha Particle X-ray Spectrometer
facet_where: 
Jet Propulsion Laboratory (JPL)
Image #: 
PIA07440
UID: 
SPD-PHOTJ-PIA07440
original url: 
http://photojournal.jpl.nasa.gov/catalog/PIA07440