| Risultati della ricerca nelle immagini - "Fissure" |
APOLLO 15 AS 15-9299.jpgAS 15-9299 - Le Monnier Crater53 visiteOn January 16, 1973, the Soviet unmanned roving vehicle Lunokhod 2 was landed by Luna 21 in or near this area in the South-Eastern part of the crater Le Monnier. This crater is a large (61 Km) pre-Imbrian crater cut into terra at the Eastern edge of Mare Serenitatis before Serenitatis was flooded by mare laves. Part of Le Monnier's Southern wall fills the lower part of the picture. A conspicuous chain of elongate depressions has formed in the lava-filled floor of the crater. The chain trends 22 Km northward and its pattern is quite surely controlled by an underlying fracture system. Regionally, the inferred fracture system is concentric to the grossly circular Serenitatis Basin and in this area trends Northward. No comparably young structural features having the same trend cut the terrae surrounding Le Monnier. However, older structures having this trend occur in the southern and northern walls and rims of Le Monnier. The aligned depressions on the mare are mostly 300 to 400 mt wide and 30 to 60 mt deep. The three deepest stretches are 1 to 2 km long and about 50 to 65 m deep. These depressions probably were the locus of fissure eruptions of mare basalt. Withdrawal of the last lava back into the fissure may have created subsurface voids into which collapse took place, causing the depressions and accounting for the absence of raised rims on the depressions.
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APOLLO_15_-_AS15-87-11703_HR1.jpgAS 15-87-11703 - Possible "Vent" or "Fissure" on Macrobius B (CTX Frame - Natural Colors; additional process.: Dr Paolo C. Fienga - Lunexit Team)124 visitenessun commentoMareKromium
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APOLLO_15_-_AS15-87-11703_HR2.jpgAS 15-87-11703 - Possible "Vent" or "Fissure" on Macrobius B (EDM - Natural Colors; additional process.: Dr Paolo C. Fienga - Lunexit Team)117 visiteAnche a questo livello di magnificazione, il dettaglio rimane, a mio parere, inesplicabile. Potrebbe essere un "Gully", ma i Gullies si posizionano a bordo cratere e seguono linee frastagliate latitudinali e non longitudinali.
La somiglienza con la Volcanic Vent di Arsia Mons (Marte) forte, ma la Regione Lunare di Macrobius non mi pare possa essere considerata alla stregua di un Distretto Vulcanico (anche se il Vulcanismo Lunare da sempre stato pi ambiguo ed enigmatico di quello Marziano, tanto per restare Off-Earth).
Noto altres una somiglianza del rilievo controverso di Macrobius con un (forse analogo?) rilievo Lunare famosissimo e noto come "L'Anomala di Lobachevsky".
Potrebbe anche trattarsi di una "Fissure" avente natura non vulcanica, ed apertasi a seguito di un sisma o di un qualche altro tipo di stretch subto dal declivio che caratterizza il lato Ovest di Macrobius.
Escluderei ogni fenomenologia di Gravity o Mass-Wasting.
Al limite posso pensare ad una sorta di Outcrop a pianta longitudinale (simile al "Mistery" Mound che venne localizzato e ripreso nei pressi del Landing Site dell'Apollo 12).
Non un difetto dell'immagine e la porzione pi scura del rilievo non , a mio parere, un'ombra ma una effettiva coloritura (nera) del suolo.
Onestamente, ad oggi, non mi sento di dire di pi. Comunque non penso assolutamente - visti i dati che possediamo - all'Ipotesi Esotica (quella sarebbe una forzatura).
Un Grazie di Cuore ad Acting65 per la segnalazione!MareKromium
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Cerberus_Fossae-PIA15474-PCF-LXTT.jpgFeatures of Cerberus Fossae (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)111 visiteOrbit Number: 45159
Latitude: 9,351 North
Longitude: 159,905 East
Instrument: VIS
Captured: February, 18th, 2012
Mars Local Solar Time: 15:48 (Middle Afternoon)MareKromium
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Chasma-Echus_Chasma-Fractures-ESP_033591_1805-PCF-LXTT-IPF.jpgFeatures of Echus Chasma (CTX Frame - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)62 visiteIn this image, we can see a so-called "Intersection Area" created by a number of Fractures (or, perhaps, Fissures and/or Water or Lava-carved narrow Channels) which are all located on the Floor of Echus Chasma (an Equatorial Chasma found in the Lunae Planum High Plateau Region of Mars, slightly to the North of the gigantic Valles Marineris Canyon System, and approx. 100 Km long and 10 Km wide).
Echus Chasma contains several Valleys which range - as far as their depth is concerned - from about 1 to 4 Km, and it is now considered, by Planetary Scientists, to be the Water Source Region that allowed the formation and then the (relevant) water-supply of the Kasei Valles Outflow Channel: a large Valley that extends for thousands of kilometers towards the North of the Red Planet.
Mars Local Time: 14:36 (Early Afternoon)
Coord. (centered): 0,377 North Lat. and 279,483 East Long.
Spacecraft altitude: 269,1 Km (such as about 161,111 miles)
Original image scale range: 53,8 cm/pixel (with 2 x 2 binning) so objects ~ 1 mt and 62 cm across are resolved
Map projected scale: 50 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 7,7
Phase Angle: 47,6
Solar Incidence Angle: 40 (meaning that the Sun was about 50 above the Local Horizon at the time the picture was taken)
Solar Longitude: 27,0 (Northern Spring - Southern Fall)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer Italia
This picture (which is a NASA - Original Mars Reconnaissance Orbiter b/w and NON-Map Projected frame identified by the serial n. ESP_033591_1805) has been additionally processed, magnified, contrast enhanced, Gamma corrected, and then colorized in Absolute Natural Colors (such as the colors that a human eye would actually perceive if someone were onboard the NASA - Mars Reconnaissance Orbiter and then looked down, towards the Surface of Mars), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team.MareKromium
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Chasma-Echus_Chasma-Fractures-PIA17704-PCF-LXTT-IPF.jpgFeatures of Echus Chasma (EDM - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)91 visiteIn this Extra Detail Magnification (or "EDM" for short) - taken from an Original NASA - Mars Reconnaissance Orbiter's False Colors and NON-Map Projected sub-frame -, we can see, with a really great detail, a so-called "Intersection Area" existing between two Fractures (or, perhaps, Fissures and/or Water or Lava-carved narrow Channels) which are both located on the Floor of Echus Chasma (an Equatorial Chasma found in the Lunae Planum High Plateau Region of Mars, slightly to the North of the gigantic Valles Marineris Canyon System, and approx. 100 Km long and 10 Km wide).
Echus Chasma contains several Valleys which range - as far as their depth is concerned - from about 1 to 4 Km, and it is now considered, by Planetary Scientists, to be the Water Source Region that allowed the formation and then the (relevant) water-supply of the Kasei Valles Outflow Channel: a large Valley that extends for thousands of kilometers towards the North of the Red Planet.
Mars Local Time: 14:36 (Early Afternoon)
Coord. (centered): 0,377 North Lat. and 279,483 East Long.
Spacecraft altitude: 269,1 Km (such as about 161,111 miles)
Original image scale range: 53,8 cm/pixel (with 2 x 2 binning) so objects ~ 1 mt and 62 cm across are resolved
Map projected scale: 50 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 7,7
Phase Angle: 47,6
Solar Incidence Angle: 40 (meaning that the Sun was about 50 above the Local Horizon at the time the picture was taken)
Solar Longitude: 27,0 (Northern Spring - Southern Fall)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer Italia
This picture (which is a crop taken from a NASA - Original Mars Reconnaissance Orbiter False Colors and NON-Map Projected sub-frame identified by the serial n. ESP_033591_1805-1) has been additionally processed, magnified, contrast enhanced, Gamma corrected, and then re-colorized in Absolute Natural Colors (such as the colors that a human eye would actually perceive if someone were onboard the NASA - Mars Reconnaissance Orbiter and then looked down, towards the Surface of Mars), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team.MareKromium
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Collapse_Features-Cerberus_Fossae-20080604a-PCF-LXTT.jpgFissure in Cerberus Fossae (Absolute Natural Colors; additional process.: Dr Paolo C. Fienga - Lunexit Team)73 visitenessun commentoMareKromium
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ESP_011930_1875_RED_abrowse.jpgLong Fissure in Cerberus Fossae (Natural Colors; credits: Lunar Explorer Italia)52 visitenessun commentoMareKromium
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ESP_012270_2035_RED_abrowse.jpgFlood-Carved Rock in Olympica Fossae (Natural Colors; credits: Lunar Explorer Italia)53 visiteThis HiRISE image is part of the Olympica Fossae in the Tharsis Region of Mars.
Tharsis is most famous for being the home of the four largest Volcanoes in the Solar System. However, the Region also hosts a variety of other geologic features formed as the ground deformed under the tremendous weight of the Volcanoes.
Most of the Fissures (or Fossae) in the Region are primarily places where the ground was pulled apart. However, the Olympica Fossae are somewhat different. They are oriented at an angle to the other Fissures suggesting that some other process was important in their formation.
A close-up image reveals that erosion by one or more catastrophic floods may have played a key role.
The teardrop shaped islands and the parallel ridges are rock left standing after the flood erosion. However, the deepest depression running basically East-West through the middle of the image was probably caused by tectonic extension, not flood erosion. This juxtaposition of tectonic and flood-carved valleys is visible elsewhere on Mars, suggesting that it may be common for the tectonic fracturing to release copious volumes of subterranean water.MareKromium
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ESP_017693_1795_RED_abrowse.jpgThermal Anomaly in Aeolis and Zephyria Regions (Saturated Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)129 visiteThis image is taken of an interesting Linear Surface Feature in the Aeolis and Zephyria regions. Using the daytime IR imaging data from the THEMIS instrument, this feature has a higher daytime temperature than its surroundings while also being relatively dark.
When viewed at full HiRISE resolution, this area contains Sand Ripples with some consolidated, Bedrock-like material poking through. These Bedrock Outcrops are more pronounced along the southern portion of the image and are most apparent in the region of the Thermal Anomaly. The Outcrops trend generally East-West and appear sculpted by aeolian erosion.
In the area of the Anomaly, the sand between these Outcrops has a darker tone and gradually blends with the lighter material to either side. This darker sand may be the reason why the material has a "hot" signature compared to its surroundings, because dark materials absorb sunlight more efficiently.
Features similar to the one in this image help researchers to characterize such features and to understand whether such exposures may indicate possible Hydrothermal Fissures, or perhaps be just an exposure of a darker underlying material.
Written by: Shawn Hart and Ginny GulickMareKromium
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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_020935_1560_RED_abrowse-PCF-LXTT.jpgVolcanic Fissure in Bernard Crater (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga)188 visitenessun commentoMareKromium
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