Lava Flows in Daedalia Planum
Lava Flows in Daedalia Planum
ESP_028965_1610  Science Theme: Volcanic Processes
To the southwest of Arsia Mons in Daedalia Planum, wide lava flow units emanating from the volcano coalesce to form a vast volcanic plain.

In this image, multiple overlapping flow lobes are visible. The stratigraphic relationships are complex and it is difficult to tell which flows are overlapping which. The flows have differing textures. Observe the more rugged texture for the lobe at the southern end of the image. Small, wind-sculpted ridges are observed on this terrain, differentially eroding it to create the hummocky texture.

A possible lava channel is also visible running south to north across the lobe. This terrain is essentially Martian bedrock, formed perhaps as recently as a half million years ago.

Written by: Dan Berman (narration: Tre Gibbs)  (24 October 2012)
Acquisition date
30 September 2012

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
256.3 km (159.3 miles)

Original image scale range
51.8 cm/pixel (with 2 x 2 binning) so objects ~155 cm across are resolved

Map projected scale
50 cm/pixel and North is up

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Emission angle

Phase angle

Solar incidence angle
58°, with the Sun about 32° above the horizon

Solar longitude
180.4°, Northern Autumn

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North azimuth:  97°
Sub-solar azimuth:  18.6°
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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.