Layers Exposed on Slope in Echus Chasma Region
NASA/JPL/University of Arizona
Layers Exposed on Slope in Echus Chasma Region
PSP_002472_1810  Science Theme: Sedimentary/Layering Processes
twitter  •  facebook  •  tumblr

WALLPAPER
800
1024
1152
1280
1440
1600
1920
2048
2560

HIFLYER
PDF (11 x 17)


The layers visible in this subimage of Echus Chasma are very different from the light-toned, thinly bedded layers HiRISE has observed in deposits seen elsewhere in Valles Marineris.

The view of these layers in Echus Chasma shows they are rough, with knobs of rock sticking out through the dust and talus (loose debris) on the slope. This indicates that perhaps these layers are made of different materials than the light-toned deposits, which appear more friable in nature.

These rough layers may be exposures of lavas, or they might just be more resistant forms of sedimentary rocks. The layers are typical of those seen in chasma slopes and crater rims elsewhere on the Martian surface.

Written by: Ross A. Beyer  (14 February 2007)
 
Acquisition date
05 February 2007

Local Mars time:
15:39

Latitude (centered)
1.124°

Longitude (East)
278.602°

Spacecraft altitude
268.9 km (168.0 miles)

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

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle:
7.6°

Phase angle:
62.4°

Solar incidence angle
55°, with the Sun about 35° above the horizon

Solar longitude
178.5°, Northern Summer

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  5.4°
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   (1002MB)

IRB color
map-projected   (492MB)

JP2 EXTRAS
Black and white
map-projected  (504MB)
non-map           (543MB)

IRB color
map projected  (178MB)
non-map           (420MB)

Merged IRB
map projected  (243MB)

Merged RGB
map-projected  (250MB)

RGB color
non map           (405MB)
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.