Media Information

 
 
 
Collection:
NASA Planetary Photo Journal Collection
Title:
Chlorine Clues
Original Caption Released with Image:
This plot shows that levels of the element chlorine rise dramatically in the deeper rocks lining the walls of the crater dubbed "Endurance." The data shown here were taken by the Mars Exploration Rover Opportunity's alpha particle X-ray spectrometer at Endurance and "Eagle Crater," the site where Opportunity first landed at Meridiani Planum.

Opportunity has been inching down the walls of Endurance Crater, investigating distinct layers of rock as it goes for clues to Mars' buried past. The various Endurance layers have been informally labeled "A" through "F." Targets within these layers are listed on the graph along with previous targets from Eagle Crater. All the rocks listed here were observed after they had been drilled by the rover's rock abrasion tool.

The observations indicate that the elements making up the shallow rock layers of Endurance Crater resemble those of Eagle, while the deeper layers of Endurance possess increasingly higher concentrations of the element chlorine.

Opportunity will continue to roll deeper into Endurance to see if this puzzling trend continues. Scientists hope the new data will help them figure out how the presence of chlorine fits into the history of water at Endurance Crater.
Image Credit:
NASA/JPL/Cornell/Uni versity of Mainz
Produced By:
JPL
Mission:
Mars Exploration Rover (MER)
Spacecraft:
Opportunity
Target Name:
Mars
Is a satellite of:
Sol (our sun)
Instrument:
Alpha Particle X-ray Spectrometer
Product Size:
720 samples x 540 lines
facet_what:
Sun
facet_what:
Crater
facet_what:
Spectrometer
facet_what:
Mars
facet_what:
Opportunity
facet_what:
Alpha Particle X-ray Spectrometer
facet_what:
Mars Exploration Rover (MER)
facet_where:
Mars
facet_where:
Jet Propulsion Laboratory (JPL)
Image #:
PIA06683
UID:
SPD-PHOTJ-PIA06683
orignial url:

Chlorine Clues