Wrinkle Ridges in Hesperia Planum
NASA/JPL/UArizona
Wrinkle Ridges in Hesperia Planum
PSP_006223_1600  Science Theme: Tectonic Processes
This observation shows wrinkle ridges in Hesperia Planum. Hesperia Planum encompasses a region of over two million square kilometers (over 770,000 square miles) in the southern highlands of Mars. It is located northwest of the Hellas basin and adjacent to Tyrrhena Patera and contains abundant orthogonal and intersecting wrinkle ridges.

Wrinkle ridges are linear to arcuate positive relief features and are often characterized by a broad arch topped with a crenulated ridge. These features have been identified on many planets such as the Moon, Mars, Mercury, and Venus. On Mars, they are many tens to hundreds of kilometers long, tens of kilometers wide, and have a relief of a few hundred meters. They commonly have asymmetrical cross sectional profiles and an offset in elevation on either side of the ridge.

Wrinkle ridges are most commonly believed to form from horizontal compression or shortening of the crust due to faulting and are often found in volcanic plains.

Written by: Maria Banks  (12 December 2007)
 
Acquisition date
24 November 2007

Local Mars time
14:22

Latitude (centered)
-19.915°

Longitude (East)
114.478°

Spacecraft altitude
257.6 km (160.1 miles)

Original image scale range
25.8 cm/pixel (with 1 x 1 binning) so objects ~77 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
0.2°

Phase angle
38.6°

Solar incidence angle
39°, with the Sun about 51° above the horizon

Solar longitude
352.3°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  26.2°
JPEG
Black and white
map projected  non-map

IRB color
map projected  non-map

Merged IRB
map projected

Merged RGB
map projected

RGB color
non-map projected

JP2
Black and white
map-projected   (1639MB)

IRB color
map-projected   (683MB)

JP2 EXTRAS
Black and white
map-projected  (884MB)
non-map           (997MB)

IRB color
map projected  (355MB)
non-map           (779MB)

Merged IRB
map projected  (417MB)

Merged RGB
map-projected  (399MB)

RGB color
non map           (821MB)
ADDITIONAL INFORMATION
B&W label
Color label
Merged IRB label
Merged RGB label
EDR products
HiView

NB
IRB: infrared-red-blue
RGB: red-green-blue
About color products (PDF)

Black & white is 5 km across; enhanced color about 1 km
For scale, use JPEG/JP2 black & white map-projected images

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All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible:
NASA/JPL/UArizona

POSTSCRIPT
NASA’s Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASA’s Science Mission Directorate, Washington. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona.