[meteorite-list] MRO HiRISE Images - June 22, 2011

From: Ron Baalke <baalke_at_meteoritecentral.com>
Date: Thu, 23 Jun 2011 09:26:52 -0700 (PDT)
Message-ID: <201106231626.p5NGQqa6024852_at_zagami.jpl.nasa.gov>

MARS RECONNAISSANCE ORBITER HIRISE IMAGES
June 22, 2011

o Polar Pit Gullies
  http://hirise.lpl.arizona.edu/ESP_022156_1115

  One goal of HiRISE is to repeat observations at locations such
  as this to detect changes that may lead to understanding how
  these gullies form.

o Colorful Gullies in an Unnamed Crater Southeast of Uzboi Valles
  http://hirise.lpl.arizona.edu/ESP_022262_1475

  The color version of this observation reveals a variety of
  interesting geological features.

o Opal Deposits near the Valles Marineris
  http://hirise.lpl.arizona.edu/ESP_022620_1690

  The silica in this observation appears to lack a clear crystal
  structure and is thought to be made up of amorphous opal, which
  can contain up to 20 percent water.

o Inverted Valleys near Juventae Chasma
  http://hirise.lpl.arizona.edu/dtm/dtm.php?ID=PSP_007627_1765

  Erosion, probably by wind, stripped away the valley walls and
  the former flow paths are preferentially preserved as ridges.
        
All of the HiRISE images are archived here:

http://hirise.lpl.arizona.edu/

Information about the Mars Reconnaissance Orbiter is
online at http://www.nasa.gov/mro. The mission is
managed by NASA's Jet Propulsion Laboratory, a division
of the California Institute of Technology, for the NASA
Science Mission Directorate, Washington, D.C. Lockheed
Martin Space Systems, of Denver, is the prime contractor
and built the spacecraft. HiRISE is operated by the
University of Arizona. Ball Aerospace and Technologies
Corp., of Boulder, Colo., built the HiRISE instrument.
Received on Thu 23 Jun 2011 12:26:52 PM PDT