| Risultati della ricerca nelle immagini - "Tyrrhena" |
Channel-TyrrhenaFossae-20091119a.jpgTyrrhena Fossae (Natural Colors; credits: Lunexit)54 visitenessun commentoMareKromium
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Craters-Unnamed_Crater-TerraTyrrhena-20071108a-PCF-LXTT.jpgUnnamed Crater in Terra Tyrrhena (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)61 visitenessun commentoMareKromium
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Craters-Unnamed_Crater-Terra_Thyrrhena-PIA14178-PCF-LXTT.jpgUnnamed Crater in Terra Tyrrhena (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)257 visiteOrbit Number: 41692
Latitude: 16,5793° South
Longitude: 96,5938° East
Instrument: VIS
Captured: May, 9th, 2011MareKromium
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Craters-Unnamed_Crater_in_Terra_Tyrrhena-01.jpgUnnamed Crater and Dunes in Terra Tyrrhena (Original NASA/MGS/MSSS b/w Frame)61 visiteCaption originale:"This MGS-MOC image shows a portion of a Field of Dark Sand Dunes superposed on the light-toned Floor of an Unnamed Crater located in Eastern Tyrrhena Terra. The orientation of the Dunes — with the steep faces toward the South (right) — suggests that winds generally blew from North to South at the time the dunes were formed".
Location near: 14,6° South Lat and 262,3° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Southern Summer
Nota: la caption originale, come spesso sta accadendo, esprimendosi sulla direzione dei venti che avrebbero scolpito le dune della Terra Tirrena è - scusateci - così stupida che meriterebbe la censura (faremmo solo un favore alla NASA). Tuttavia, dato che il servizio che noi cerchiamo di rendere vuole coprire anche alcuni lati "curiosi" (sic!) della Divulgazione Scientifica, abbiamo pensato di lasciare il commentino ufficiale integro, così che qualsiasi Lettore, leggendolo, possa rendersi conto di che cosa significa "parlare (rectius: scrivere) quando non si ha proprio nulla da dire (scrivere)".
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Craters-Unnamed_Crater_in_Terra_Tyrrhena-MGS-03.jpgUnnamed Crater and Dunes in Terra Tyrrhena (Original NASA/MGS/MSSS b/w Frame)60 visitenessun commento
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Craters-Unnamed_Crater_in_Terra_Tyrrhena-MGS-04.jpgUnnamed Crater and Dunes in Terra Tyrrhena (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team137 visitenessun commentoMareKromium
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Craters-Unnamed_Double_Crater_in_Terra_Tyrrhena.jpgDouble Impact Crater in Terra Tyrrhena (Natural Colors + MULTISPECTRUM; credits: ESA & Lunexit)56 visiteThe High Resolution Stereo Camera (HRSC), ESA’s Mars Express obtained images of the Tyrrhena Terra Impact Region on Mars.
On 10 May 2007, the spacecraft was in orbit number 4294 when it snapped pictures of the Region located at 18° South Lat. and 99° East Long. with a ground resolution of approximately 15 metres per pixel.
The Western part of the scene is dominated by a 35 Km-wide and approx. 1000 mt-deep impact crater with an extremely cliffy and chiseled edge. Another, 18 Km-long and approx. 750 mt-deep impact crater, in all likelihood a ‘double impact crater’, is located South of the large crater.
These 'double impact craters' develop when two objects, part of a binary, hit the surface almost simultaneously.MareKromium
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Dunes-Dark_Dunes-Terra_Tyrrhena-PCF-LXTT.jpgFeatures of Terra Tyrrhena (Saturated and Enhanced Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)117 visitenessun commentoMareKromium
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Dunes-Terra_Tyrrhena.jpgReddish Dunes in Terra Tyrrhena (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)54 visiteSource: NASA/2001 Mars Odyssey Orbiter
Coord.: 9,9° South Lat. and 98,1° East Long.MareKromium
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ESP_014333_1715_RED_abrowse.jpgTerra Tyrrhena: Unnamed Crater with Central Uplift and Hydrated Minerals (Natural Colors; credits: Lunexit)55 visitenessun commentoMareKromium
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ESP_014426_1580_RED_abrowse.jpgTerra Sabaea and Terra Tyrrhena Boundary (Natural Colors; credits: Lunexit)60 visitenessun commentoMareKromium
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PSP_006487_1580_RED.jpgCollapse Features in Tyrrhena Patera (natural colors; credits: Lunexit)54 visiteIn this image you can notice a set of craters around the rim of Tyrrhena Patera. Tyrrhena Patera is a volcano in the Southern Highlands with shallow slopes, and only 2 Km (about 1,2 miles) of vertical relief.
The craters are aligned and are known as Pit Crater Chains. These are common in Volcanic Regions on Mars.
They are not formed by a meteorite impact, but by collapse into some void space underground.
Because the Pit Crater Chains and Concentric Fractures are generally aligned, these are most likely due to extension in the Region, where parts of the Martian Crust pull apart during growth of the volcano or emplacement of dikes.
Another way pit crater chains can occur is when Lava Tubes partially collapse forming chains of holes along the roof of the Lava Tubes themselves.
A third possibility is that these may be associated with collapse of the underground magma chamber.MareKromium
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