A Tribute To Mars Global Surveyor
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North_Polar_Features-North_Polar_Scarp-MGS-00.jpgNorth Polar Panorama (Original NASA/MGS/MSSS b/w Frame)57 visiteCaption NASA originale:"This MGS-MOC image shows a steep slope in the North Polar Region of Mars. The stripes indicate an exposure of layered material; the variations in brightness among the stripes are the result of varying amounts and textures on seasonal Carbon Dioxide (CO2) frost. At the time the image was acquired - such as in June 2006 -, the Carbon Dioxide frost was beginning to sublime way, leaving a variety of different patterns in frost distribution".
Location near: 85,2° North Lat. and 122,7° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring
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North_Polar_Features-North_Polar_Scarp-MGS-01.jpgNorth Polar Panorama (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)168 visiteCaption NASA originale:"This MGS-MOC image shows a steep slope in the North Polar Region of Mars. The stripes indicate an exposure of layered material; the variations in brightness among the stripes are the result of varying amounts and textures on seasonal Carbon Dioxide (CO2) frost. At the time the image was acquired - such as in June 2006 -, the Carbon Dioxide frost was beginning to sublime way, leaving a variety of different patterns in frost distribution".
Location near: 85,2° North Lat. and 122,7° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring MareKromium
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North_Polar_Features-Polar_Cone-MGS-00.jpgNorth Polar "Cone" (Original NASA/MGS/MSSS b/w Frame)59 visiteCaption NASA originale:"This MGS-MOC image shows a cone-shaped hill, perhaps a remnant of a material that was once more laterally extensive across the area, on a textured plain in the Hyperboreus Labyrinthus Region in the North Polar Region of Mars.
The hill and its surroundings are covered with a blanket of solid CO2 which imparts a roughly homogeneous-tone to the scene.
Despite its shape, the feature is not a volcano; over the past 9 years, the MGS-MOC investigation has found no unambiguous evidence for volcanic landforms in the North Polar Region".
Location near: 79,5° North; 57,0° West
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring
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North_Polar_Features-Polygons-PIA07354-0.jpgNorth Polar "Polygons" (Original NASA/MGS/MSSS b/w Frame)70 visiteCaption NASA originale:"This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows Polygons formed in ice-rich material in the North Polar Regions of Mars. The bright surfaces in this image are covered by a thin Water Ice Frost".
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North_Polar_Features-Polygons-PIA07354-1.jpgNorth Polar "Polygons" (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)239 visitenessun commentoMareKromium
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North_Polar_Features-The_Erg-PIA07375.jpgDark Dunes and Frost in the North Polar Erg (Original NASA/JPL/MSSS b/w Frame)66 visiteCaption NASA originale:"This MGS-MOC image shows sand dunes in the North Polar Region of Mars, as they appeared during Northern Summer in December 2004".
Location near: 78.1° North Lat. and 227,2° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Summer
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North_Polar_Features-The_Erg-PIA07375.jpgDark Dunes and Frost in the North Polar Erg (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)151 visiteCaption NASA originale:"This MGS-MOC image shows sand dunes in the North Polar Region of Mars, as they appeared during Northern Summer in December 2004".
Location near: 78.1° North Lat. and 227,2° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Northern Summer
MareKromium
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North_Polar_Features-Unconformities-00.jpgNorth Polar "Unconformity" (Original NASA/MGS/MSSS b/w Frame)62 visiteCaption NASA originale:"This MGS-MOC image shows an Unconformity in an exposure of North Polar Layered Material, at which older Layers were cut-off and eroded before a new suite of Layers was deposited above them.
The Terrain in the entire scene was covered by a thin layer of CO2 Frost at the time this picture was acquired in June 2006".
Location near: 86,1° North Lat. and 208,5° West Long.
Image width: ~4 Km (~2,5 mi)
Illumination from: lower left
Season: Northern Spring
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North_Polar_Features-Unconformities-01.jpgNorth Polar "Unconformities" (Original NASA/MGS/MSSS b/w Frame)54 visiteCaption NASA originale:"This MGS-MOC image shows Layers exposed in the North Polar Region of Mars. The North Polar Cap is underlain by a thick sequence of Layered Material. The Layers are most commonly exposed on the slopes of troughs that are believed to have formed by Wind Erosion. The Layers give a banded appearance. In this example, some of the Layers are cut off (truncated) by other Layers. This truncation is a classic, textbook example of an Erosional Unconformity, a term commonly used by geologists. The Unconformity occurs when deposition of new layered material stops for a while and erosion occurs. Then, new layers form on top of the eroded surface and the older layers, at some point in time when the erosion stops and deposition of layered material resumes".
Location near: 78,6° North Lat. and 342,0° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: upper right
Season: Northern Spring
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North_Polar_Features-Unconformity-02.jpgNorth Polar "Minor Unconformity" (Original NASA/MGS/MSSS b/w Frame)53 visiteCaption NASA originale:"This MGS-MOC image shows Layers exposed in a Trough in the Martian North Polar Region. At the time the picture was acquired, the entire scene was covered by seasonal Carbon Dioxide Frost. By late Spring and into Summer, these Layers would appear darker, once the CO2 Frost sublimes away".
Location near: 84,9° North Lat. and 263,3° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring
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North_Polar_Features-Unconformity-MGS-01.jpgNorth Polar "Unconformity" (Original NASA/MGS/MSSS b/w Frame)53 visiteCaption NASA originale:"This MGS-MOC image shows layered material exposed on a slope in the North Polar Region.
An "unconformity" is visible in the middle/lower left of the image, where layers are abruptly truncated. Unconformities are indicators of drastic change in the Region — the lower layers were deposited first, then eroded, then the upper layers were deposited".
Location near: 81,1° North Lat. and 75,2° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring
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North_Polar_Regions-Chasma_Boreale-MGS-00.jpgBrown Dunes in Chasma Boreale (Original NASA-MSSS-MGS b/w frame)93 visiteCaption NASA originale:"This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows layers and dunes in Chasma Boreale, a large depression in the North Polar Region".
Location near: 85,2°N; 10,4°W
Image width: ~3 Km (~1.9 mi)
Illumination from: lower left
Season: Northern Summer
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