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Halos Along Fractures Exposed in Meridiani
02.15.07
Halos Along Fractures Exposed in Meridiani

Halos Along Fractures Exposed in Meridiani   This image from the High Resolution Imaging Science Experiment camera on NASA's Mars Reconnaissance Orbiter shows evidence for ancient fluid flow along fractures in Mars' Meridiani Planum region.

The scene includes pervasive signs of ancient fluid flow in the form of bleached and cemented features, called halos, along fractures within the layered deposits of Meridiani. This site is approximately 375 kilometers (233 miles) northeast of "Victoria Crater."

The view is a portion of image PSP_002324_1815 in the camera's catalog. The image scale is 27 centimeters (10.6 inches) per pixel. Illumination is from the upper left. Smaller portions of the scene [Cutout A and Cutout B] are pulled out to highlight examples of the halos. The high-resolution camera acquired this image on Jan. 24, 2007.

NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems, Denver, is the prime contractor for the project and built the spacecraft. The High Resolution Imaging Science Experiment is operated by the University of Arizona, Tucson, and the instrument was built by Ball Aerospace and Technology Corp., Boulder, Colo.

Image Credit: NASA/JPL/Univ. of Arizona
Cutout A
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+ Higher resolution (annotated)

Halos Along Fractures Exposed in Meridiani
Cutout B
+ Higher resolution
+ Higher resolution (annotated)