| Risultati della ricerca nelle immagini - "Memnonia" |
Chaotic_Terrain-Memnonia-PIA08104-1.jpgChaotic Terrain between Memnonia Fossae and Elysium Planitia (1 - Original NASA/JPL/ASU b/w Frame)56 visiteCaption NASA originale:"These arcuate fractures are located on the margin between Memnonia Fossae and Elysium Planitia".
Image information: VIS instrument;
Latitude: 1,4° North;
Longitude: 177,5° East;
Resolution: 18 meter/pixel.
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Chaotic_Terrain-Memnonia-PIA08104-2.jpgChaotic Terrain between Memnonia Fossae and Elysium Planitia (2 - Original NASA/JPL/ASU b/w Frame)55 visitenessun commento
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PSP_002290_1585andPSP_001868_1585-MemnoniaFossae-Channel-CollapseFeatures.jpgChannel and Graben in Memnonia Fossae (Hi-Def-3D - Extremely Enhanced Natural Colors; credits: Dr M. Faccin & Lunar Explorer Italia)54 visiteLatitude (centered): 21,5° South
Longitude (East): 211,2 °
Range to target site: 261,1 Km (approx. 163,2 miles)
Original image scale range: 26,1 cm/pixel (with 1 x 1 binning) so objects ~78 cm across are resolved
Map projected scale: 25 cm/pixel and North is up
Map projection: EQUIRECTANGULAR
M.L.T.: 15:37 (middle afternoon)
Emission angle: 9,3°
Phase angle: 70,6°
Solar Incidence Angle: 63°, with the Sun about 27 ° above the Local Horizon
Solar Longitude: 153,1° (Northern Summer)MareKromium
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PSP_005442_1660_RED_abrowse-PCF-LXTT.jpgGraben in Memnonia Fossae (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)134 visiteThis HiRISE image shows a Graben (roughly 2,5 Km or 1,6 miles wide) cutting a Ridge near Memnonia Sulci, a Region of Mars West of the massive Tharsis Volcanic Province. A Graben is a Trough created when 2 normal Faults (Faults dipping at an angle, with the overhanging wall sliding downwards) opposite each other lower the block of rock in between them. They are commonly associated with the tectonically-driven extension of a region and are also found in volcanic areas. Graben occur on many planets and moons, including Earth.
In this case, the Graben (running roughly East-West, indicating extension in the North-South direction) is cutting a Ridge, showing that it is more recent. The Ridge may also be tectonic in origin, therefore representing a different epoch and different type of tectonic activity.
Relationships like this can be used to determine the sequence of events in the history of the Region. The Graben Walls can also expose the local rocks at depth; in this case there is no obvious indication of Layering.MareKromium
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PSP_010491_1570_RED_abrowse.jpgGraben in Memnonia Fossae (Natural Colors; credits: Lunar Explorer Italia)66 visiteMars Local Time: 15:41 (middle afternoon)
Coord. (centered): 23,0° South Lat. and 219,6° East Long.
Spacecraft altitude: 258,7 Km (such as about 161,7 miles)
Original image scale range: 51,8 cm/pixel (with 1 x 1 binning) so objects ~ 1,55 mt across are resolved
Map projected scale: 50 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 9,9°
Phase Angle: 73,9°
Solar Incidence Angle: 66° (meaning that the Sun is about 24° above the Local Horizon)
Solar Longitude: 145,4° (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
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