The Floor of Toro Crater
NASA/JPL/University of Arizona
The Floor of Toro Crater
ESP_025067_1970  Science Theme: Hydrothermal Processes
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Toro Crater may have experienced hydrothermal alteration, producing diverse minerals. The mineral diversity leads to diverse color in HiRISE, especially when enhanced as in this subimage.

In general the blue and green colors indicate unaltered minerals like pyroxene and olivine, whereas the warmer colors indicate alteration into clays and other minerals. The linear north-south trending features are windblown dunes that are much younger than the bedrock.

Written by: Alfred McEwen   (1 February 2012)

This is a stereo pair with ESP_025344_1970.

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Acquisition date:01 December 2011 Local Mars time:14:39
Latitude (centered):17.002° Longitude (East):71.717°
Range to target site:277.8 km (173.6 miles)Original image scale range:55.6 cm/pixel (with 2 x 2 binning) so objects ~167 cm across are resolved
Map projected scale:50 cm/pixel and North is upMap projection:Equirectangular
Emission angle:0.6° Phase angle:39.0°
Solar incidence angle:38°, with the Sun about 52° above the horizon Solar longitude:37.4°, Northern Spring

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