A Circular Feature Crosscut by a Lava Channel
A Circular Feature Crosscut by a Lava Channel
ESP_079260_2030  Science Theme: 
This scene, 650 kilometers to the east of Olympus Mons, shows a circular feature about 3 kilometers in diameter with raised rims surrounded and infilled by lavas.

A lava channel extends from the feature and continues 60 kilometers to the northeast, growing deeper along its path. The circular formation is likely an eroded impact crater whose walls have been breached by the lava as it surrounded the rim and then infilled the crater. Alternatively, it could represent the location of a volcanic vent that sourced some of the lavas that formed the channel.

Written by: Dan Berman  (6 November 2023)

Acquisition date
24 June 2023

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
279.5 km (173.7 miles)

Original image scale range
56.2 cm/pixel (with 2 x 2 binning) so objects ~169 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
45°, with the Sun about 45° above the horizon

Solar longitude
81.8°, Northern Spring

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  20.0°
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

Black and white
map-projected   (255MB)

IRB color
map-projected   (143MB)

Black and white
map-projected  (128MB)
non-map           (198MB)

IRB color
map projected  (47MB)
non-map           (136MB)

Merged IRB
map projected  (272MB)

Merged RGB
map-projected  (250MB)

RGB color
non map           (125MB)
B&W label
Color label
Merged IRB label
Merged RGB label
EDR products

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

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’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.