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APOLLO 15 AS 15 84-11250 HR.jpgAS 15-84-11250 - Silver Spur (HR)212 visiteOriginal caption:"Dave Scott took this 500-mm picture of Silver Spur during the SEVA at about 106:58:07 MT. Silver Spur is named for Caltech geologist Lee Silver, who showed Scott and Irwin that field geology could be exciting (see Don Wilhelm's excellent book "To a Rocky Moon").
Note that there appear to be 2 systems of lineations in Silver Spur. One set consists of what appear to be about ten thick beds which appear to dip down from right to left as seen from the LM. As discussed in the Apollo 15 Preliminary Science Report, this set of lineations may well represent real structure in the mountain.
The second set of lineations consists of closely-spaced, nearly horizontal lines and these lines may be lighting artifacts".
Scan courtesy NASA Johnson.
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APOLLO_15_-_AS15-84-11294_HR.jpgAS 15-84-11294 - Mount Hadley (partially Sunstruck)59 visitenessun commentoMareKromium
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APOLLO_15_-_AS15-84-11311_HR.jpgAS 15-84-11311 - Mount Hadley59 visitenessun commentoMareKromium
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APOLLO_15_-_AS15-84-11312_HR.jpgAS 15-84-11312 - Mount Hadley60 visitenessun commentoMareKromium
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APOLLO_15_-_AS15-84-11313_HR.jpgAS 15-84-11313 - Mount Hadley70 visitenessun commentoMareKromium
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APOLLO_15_-_AS15-84-11314_HR.jpgAS 15-84-11314 - Mount Hadley60 visitenessun commentoMareKromium
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APOLLO_15_-_AS15-84-11315_HR.jpgAS 15-84-11315 - Mount Hadley61 visiteCaption NASA:"144:47:51 MT - This frame ends Dave Scott's vertical sequence of pictures of the West Face of Mt. Hadley. It is probably the best picture of the "high water marks" at the base of the mountain".MareKromium
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APOLLO_15_-_AS15-84-11316_HR.jpgAS 15-84-11316 - Mount Hadley (Natural Colors - enhanced -; credits: Lunar Explorer Italia)58 visiteCaption NASA:"Dave (Scott) has turned his attention to the hill which is immediately South of Mt. Hadley. At 144:50:48 MT, Dave refers to this feature as the "forward, leading edge of Swann Mountain", but he may have meant the 'leading edge of the Swann Range'.
MareKromium
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APOLLO_15_-_AS15-84-11319_HR.jpgAS 15-84-11319 - Mount Hadley58 visitenessun commentoMareKromium
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APOLLO_15_-_AS15-84-11320_HR.jpgAS 15-84-11320 - Mount Hadley62 visitenessun commentoMareKromium
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A_Pair_of_Small_Pit_Craters_(PSP_009488_1745)-1.jpgA Pair of Collapse Pits75 visiteThe pair of Pit Craters visible here are the smallest anomalous Pits known to exist at this time. These have either vertical or sub-vertical interior Walls (not visible from a nearly overhead viewing perspective), and each Pit is deep enough that Sunlight does not hit the floor when the Sun is at the Zenith.
Unfortunately, the only Thermal-InfraRed camera currently orbiting Mars cannot resolve features this small, so the temperature characteristics of these Pits must remain unknown for now, underscoring the need for a high-resolution thermal instrument on future missions.
Intriguingly, when Pit Craters on Earth have similar characteristics to the pair shown here, they often have Cave entrances in their bases connecting to large underground networks.
Current investigations are determining whether the anomalous Martian Pits may be shown to contain such entrances.MareKromium
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A_Pair_of_Small_Pit_Craters_(PSP_009488_1745)-2.jpgCollapse Pit67 visitePit Craters exist in volcanic regions across Mars, and form when surface materials collapse into large underground cavities. Such Pits are generally bowl-shaped, filled with sediment, and are relatively shallow when compared with their diameters.
Recently, a small number of anomalous pit craters were identified with strikingly different visible and thermal characteristics such as: sheer cliff walls; deep interiors that can extend out-of-sight beneath the Surface and temperature fluctuations that behave unlike any known feature on Mars.MareKromium
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