| Risultati della ricerca nelle immagini - "Mesas" |
ESP_023067_0930_RED_abrowse-PCF-LXTT-1.jpgPossible Water Ice and South Polar Mesas (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)210 visiteMars Local Time: 18:17 (Middle Afternoon)
Coord. (centered): 87,1° South Lat. and 25,3° East Long.
Spacecraft altitude: 246,8 Km (such as about 154,2 miles)
Original image scale range: 24,7 cm/pixel (with 1 x 1 binning) so objects ~ 74 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: POLAR STEREOGRAPHIC
Emission Angle: 0,1°
Sun-Mars-Spacecraft (or "Phase") Angle: 74,1°
Solar Incidence Angle: 74° (meaning that the Sun is about 16° above the Local Horizon)
Solar Longitude: 319,1° (Northern Winter)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Dr Paolo C. Fienga - Lunar Explorer ItaliaMareKromium
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Isidis_Planitia.jpgMartian "Cat-paw" print - Isidis Planitia (Original NASA-MGS-MSSS b/w Frame) 61 visiteOriginal caption:"This MGS-MOC image shows a mesa in North-Eastern Isidis Planitia. The mesa might be a remnant of terrain that once more extensively covered the Region".
Location near: 20,3° North and 267,7° West
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Winter
Nota: il titolo che abbiamo dato al frame è giustificato dalla formazione craterica visibile sulla mesa la quale ci ricorda, in maniera quasi perfetta, l'impronta di un felino sulla sabbia.
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Northern_Regions-Mesas-MGS.jpgMesas in Vastitas Borealis (Original NASA/MGS/MSSS b/w frame)53 visiteCaption NASA originale:"This MGS-MOC image shows two mesas on the Northern Plains of Mars. "Mesa" is the Spanish word for "table" and that is a very good description of the two elliptical features captured in this MOC image. In both cases, the Mesa tops and the material beneath them, down to the level of the surrounding, rugged Plain, are remnants of a once more extensive layer (or layers) of material that has been largely eroded away. The circular feature near the center of the larger Mesa is the site of a filled and buried Impact Crater".
Location near: 53,5° North Lat. and 153,5° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring
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PSP_003231_2095_RED_abrowse-00.jpgRocky Mesas in Nilosyrtis Mensae (CTX Frame - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)124 visiteMareKromium
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PSP_003231_2095_RED_abrowse-01.jpgRocky Mesas in Nilosyrtis Mensae (EDM - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)106 visiteMareKromium
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PSP_004071_1425_RED_abrowse.jpgMesas in Gorgonum Chaos (CTX Frame - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 87 visitePSP_004071_1425 shows Mesas that are part of Gorgonum Chaos, a Region of Chaotic Terrain, which is a jumble of Mounds and Mesas grouped together. Chaotic Terrain is most commonly found in Mars near the sources of the gigantic Outflow Channels. Gorgonum Chaos is one of the few exceptions.
Some of the Troughs between the Mesas appear to have V-shaped bottoms; there is no obvious flat floor in between. Others have Dunes running down their centers probably indicating flat floors.
It is possible that the Mesas were once connected and that something caused fractures in the original Mesa's Surface that were then preferentially eroded.MareKromium
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