Gullies on the Northwest Rim of Hale Crater
Gullies on the Northwest Rim of Hale Crater
ESP_014074_1445  Science Theme: Fluvial Processes
This image covers part of the northwest rim of Hale Crater. Gullies have formed down the interior rim of the crater in this location.

While the origin of these gullies is not clear, some have attributes similar to their counterparts on the Earth that result from flowing water. These include upper regions where gully tributaries have eroded into the source rocks, sinuous or “snake-like” channel middle reaches, and down slope regions where gullies distribute and terminate in deposits of sediment and debris.

Bright material deposits are evident along the walls of some gullies. These deposits might be the result of transport or exposure of finer-grained sediments, variations in the brightness of dust or materials, or the presence of ice or fresh deposits within the gullies.

Hale is an elliptical-shaped crater, approximately 150 by 125 kilometers, just north of the Argyre Basin.

Written by: Shawn D. Hart and Ginny Gulick  (23 December 2009)

This is a stereo pair with ESP_013230_1445.
Acquisition date
28 July 2009

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
255.2 km (158.6 miles)

Original image scale range
27.2 cm/pixel (with 1 x 1 binning) so objects ~81 cm across are resolved

Map projected scale
25 cm/pixel and North is up

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Phase angle

Solar incidence angle
38°, with the Sun about 52° above the horizon

Solar longitude
311.2°, Northern Winter

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North azimuth:  97°
Sub-solar azimuth:  23.5°
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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.