| Risultati della ricerca nelle immagini - "Fissures" |
ESP_018787_1875_RED_abrowse.jpgFissure in Cerberus Fossae (Darkened Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)80 visitenessun commentoMareKromium
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ESP_021464_1900_RED_abrowse-PCF-LXTT-00.jpgFissure in Cerberus Fossae (CTX Frame - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)176 visiteMars Local Time: 15:05 (Early Afternoon)
Coord. (centered): 10,1° North Lat. and 157,6° East Long.
Spacecraft altitude: 295,6 Km (such as about 184,7 miles)
Original image scale range: 29,6 cm/pixel (with 1 x 1 binning) so objects ~89 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 21,2°
Sun-Mars-Spacecraft (or "Phase") Angle: 74,9°
Solar Incidence Angle: 56° (meaning that the Sun is about 34° above the Local Horizon)
Solar Longitude: 242,5° (Northern Fall)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Dr Paolo C. Fienga - Lunar Explorer ItaliaMareKromium
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ESP_021464_1900_RED_abrowse-PCF-LXTT-01.jpgFissure in Cerberus Fossae (EDM - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)192 visitenessun commentoMareKromium
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ESP_023798_1895_RED_abrowse-PCF-LXTT.jpgFissure in Cerberus Fossae (Enhanced Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 182 visiteMars Local Time: 14:09 (Early Afternoon)
Coord. (centered): 9,2° North Lat. and 157,9° East Long.
Spacecraft altitude: 276,1 Km (such as about 172,6 miles)
Original image scale range: 27,6 cm/pixel (with 1 x 1 binning) so objects ~ 83 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 0,1°
Phase Angle: 35,1°
Solar Incidence Angle: 35° (meaning that the Sun is about 55° above the Local Horizon)
Solar Longitude: 350,0° (Northern Winter)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Dr Paolo C. Fienga - Lunar Explorer ItaliaMareKromium
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ESP_024998_1900_RED-PCF-LXTT.jpgFissure in Cerberus Fossae (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)247 visiteCoord. (centered): 9,9° North Lat. and 158,3° East Long.
MareKromium
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PSP_004006_1900_RED_abrowse-PCF-LXTT.jpgFissure in Cerberus Fossae (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)88 visitenessun commentoMareKromium
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PSP_006234_1870_RED_abrowse-PCF-LXTT.jpgFeatures of Cerberus Fossae (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga)210 visitenessun commentoMareKromium
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PSP_009003_1890_RED.jpgPseudo-Pyramid and Fissures in Cerberus Fossae (Extremely Enhanced and Saturated Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)129 visiteThis image shows a part of the Cerberus Fossae Region, a system of aligned fissures that lays East of Elysium.
The fissures were probably the source of floods of both water and lava. The most recent event was a massive outpouring of basaltic lava (a fluid-type of lava like that commonly erupted by Kilauea in Hawaii), which produced a host of volcanic features in the Region, as described by Jaeger et al. (2007).
Here, as at other locations, the fossae appear a dark red in the Lunexit Natural Color image. Dark red tones are usually associated with basaltic rock. The reddish ripples found on the trough floor could be wind-blown sand comprised of fine fragments of basalt. The upper plains are a relatively bland tone, perhaps due to a thin coating of dust; however, impact craters in the image also show reddish boulders and ripples, indicating that they have excavated the same basaltic rock layers cut by the fossae. This is typical of the Region, as floods of lava coat much of the area.
The mesas of older rock on the left side of the fissures are remnants of a former surface, now eroded. The surrounding Region has many knobs and larger protruding topography, which may be remnants of the same materials. The topmost layer in each mesa is very resistant to weathering, as in places it actually overhangs the lower rocks. This cap layer could be solidified lava, although it appears somewhat bland in color.
Although the mesa is clearly eroded and the cap rock breaks up into boulders, few rocks are visible at the bottom of the slope. The lava plains may have buried the former basal slope, or debris may have been swept away by lava or floodwater, that could also have contributed to eroding the mesa.MareKromium
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PSP_009913_1910_RED_abrowse-00.jpgFissures in Cerberus Fossae (natural colors; credits: Lunexit)62 visiteThis image shows an example of “en echelon” fractures in the Cerberus Fossae Region.
These fractures formed tectonically, meaning by the movement of Mars’ crust.
En "echelon" means that the fractures are laterally displaced from each other in a way consistent with the lateral displacement of other fractures in the same area.MareKromium
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PSP_009913_1910_RED_abrowse-01.jpgFissures in Cerberus Fossae (Enhanced and Saturated Natural Colors; credits: Lunexit)59 visiteThe colors in this frame result from differences in composition of the materials and ALSO represent how the landscape would appear to the human eye. Note that one can make out boulders and small dunes at the bottom of these fractures and layering within the walls. Just visible at the top of the image is some well-preserved impact crater ejecta.
The image is 1,2 Km across.MareKromium
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PSP_009913_1910_RED_abrowse-02.jpgFissures in Cerberus Fossae (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 259 visitenessun commentoMareKromium
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Sirenum_Fossae-20090624a.jpgFissure in the Eastern End of Sirenum Fossae (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)54 visitenessun commentoMareKromium
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