Collapsing Volcano
NASA/JPL/University of Arizona
Collapsing Volcano
ESP_016886_2030  Science Theme: Landscape Evolution
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This image covers the northern edge of the largest volcano in the solar system, Olympus Mons. The margin of Olympus Mons is defined by a massive, tall cliff. At this location, it is nearly 7 kilometers (23,000 ft) tall. The cliff exposes the guts of the volcano, revealing interbedded hard and soft layers. The hard layers are lava and the soft layers may be dust (from large dust storms) or volcanic ash.

This HiRISE image also shows a large tongue of material that has flowed over the giant cliff. While superficially similar to lava flows, this flow is actually a landslide. Most scientists think the the cliffs also formed by landslides, just much bigger ones. All this collapse is driven by the weight of the huge volcano exceeding the strength of the rocks of which it is composed.

Written by: Lazslo Kestay  (31 March 2010)
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Acquisition date
04 March 2010

Local Mars time:
15:00

Latitude (centered)
22.948°

Longitude (East)
224.759°

Range to target site
277.6 km (173.5 miles)

Original image scale range
55.5 cm/pixel (with 2 x 2 binning) so objects ~167 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection
Equirectangular

Emission angle:
1.5°

Phase angle:
40.1°

Solar incidence angle
42°, with the Sun about 48° above the horizon

Solar longitude
59.4°, Northern Spring

For non-map projected images
North azimuth:  96°
Sub-solar azimuth:  13.0°
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   (540MB)

IRB color
map-projected   (264MB)

JP2 EXTRAS
Black and white
map-projected  (317MB)
non-map           (285MB)

IRB color
map projected  (123MB)
non-map           (261MB)

Merged IRB
map projected  (509MB)

Merged RGB
map-projected  (462MB)

RGB color
non map           (238MB)
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

USAGE POLICY
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/University of Arizona

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.