The rocks that rolled in Moretus

The rocks that rolled in Moretus
Here is a photo that I really liked!
It conveys a very strong feeling of depth, it seems that we are going to get off at Moretus and walk through that valley to the limbo that ends between the two mountains called M5 and M4. If you have a photo that conveys a 3D sensation, this is certainly one of them!
The Moretus crater, near the Lunar South Pole with 114 km in diameter is a complex crater. A beautiful central peak formed during the impact process, and over geological time this central peak was eroded by other smaller impact events. As the rock on the central peak fractured and broke, the pieces rolled down the hill. Some boulders only partially descended the slope of the central peak, while others descended to the bottom of the crater. As you can see in my image, the location of these rocks that rolled down is indicated by an “X”, the rocks that reached the bottom of the crater vary in size from about 10 m to 40 m in diameter and have different shapes (they can be seen in the attached images on the right obtained through LROC NAC). Where a rock rests depends on many factors which include its size and shape, as well as how the rock was disturbed in the first place – perhaps a small meteorite impacted the peak at just the right angle and speed to dislodge the rock, or perhaps a rock close to impact created shock waves that loosened the rock. However, since gravity is always present, it is likely that, at some point in the future, all the boulders on the slope of the central peak will fall.
Boulders like these are incredibly valuable for future exploration because they represent material from the central peak that was excavated from great depth during crater formation (remember the water drop effect?), and their origin can be determined by tracing the hill tracks. above. Of course, it would be quite a feat to climb to the summit of the 2,700m central peak of a crater like Moretus to obtain samples, however, all lunar scientists would probably agree that obtaining samples that have rolled down to the floor is much easier to obtain.
Source: LROC NAC – NASA/GSFC/Arizona State University].
Adaptation: Avani Soares
Setup: C14 Edge + ASI 290MM + PM 2X + Long Pass 610 nm
Stacked: 350 frames
Parsec Observatory, Brazil (-30ºS, -051.17ºW)

Autore: Avani Soares (sito)