Geological interpretation - explanation - developing

  • No aditional information given
  • No centering sugested
  • No paralel assertions shared
  • Neutral opinion - What's the name of this geological phenomena?



AS15-P-9630 enhanced version


I am not a scientist, neither I have any specialization. I’m a curious, idealistic and sceptic person that believes in science as one of the best tools for mankind’s maturity and illumination. By so, if this analysis would ever be potentially serious and solid, science would have to had it’s opinion on the subject.


As a very curious and enthusiastic person on UFO phenomena and potential extraterrestrial life hypothesis I was attracted to this “alien mother space ship” controversy as a fly is impelled to the light.


Ufology and the truth about known extraterrestrial life forms is an extreme polemical and controversial question, with highly potential probabilities of mistaken interpretations surrounded by a religious parallelism and self-intituled spokesmen as pseudo-scientists with extremely dogmatic assertions, commonly identified as charlatans. On other side, there are indeed reasons , at  least potential analogue hypothesis by some factual statements that once were considered conspiracy , now reflex that a conspiracy could have it's truth - i give the example of Morris  and the  "inocent" tobacco. View HERE.

The suggestion wich conects the form to the “the pseudo-spaceship”, was indeed controversial and the odds were side by side or at least they were equalized in terms of keep further investigating, yet, that was only possible until the enhanced hi-resolution version of AS15-P-9625 and AS15-P-9630 wasn’t shown. I decided not to be inflamed by speculation and started to search for a astro-geological / geological expert’s interpretation of the phenomena. This was my first step to analyse the controversy - it was August and just explaining the geological phenomena wasn't enough for induced opinions. I thought a process was indeed necessary, and by so i've constructed this page as a book with chapters showing a net of emotion, culture, belief, science, hypothesis.


My strategy was not to mention any aditional information inherent to the controversy while I was searching for a expert interpretation. Clean photographs, not centered, not zomed, without noise, simply, the lunar surface and the clinic geologist's eye.


I've contacted several geological and astro-geological institutes and these photographs were the first ones that were shown and asked for geological opinion.


British Geological Survey and U.S Geological Survey contacted me and Mr. John B. Murray and Mrs. Deborah, both geological planetary experts, answered my questions. I can only thank them for their attention and support.


Slowly, I was giving more detailed and focused views of the "object", wondering if they could suggest anything that was scarse or not common in terms of geology.

"...The main process visible in the images specified is impact cratering, with some subsequent modification by downslope movement to form talus, and slope creep at a finer scale.  However, I presume you are referring to the flat and swelling floors of a few of these craters.  These phenomena are generally believed to be associated with elastic rebound of the crater interior during and soon after impact.  For small craters there is usually a simple bowl shape for fresh impact craters, and for large craters (tens of kilometres) there is a central peak caused by rebound.  Between these two extremes, however, flat floors or slightly swelling floors occur, the exact shape being dependent on size, and probably lithology and previous topography too.  For example it is noticeable that the prominent wide swelling floor in the young crater to the top left in the first image is situated directly on the raised rim of a previous crater.  Continuous "gardening" by much smaller impacts will gradually smooth out this characteristic profile, which will disappear in old craters..."

Still, I wasn't mentioning any additional information nor alluded to the controversy itself.


"...I had a couple other folks take a look at the images. The terrain in general is a typical, highly impacted lunar surface. The particular feature may have been altered by faulting, and the thin, bright strip between the two hills could be a landslide..."

After the high-resolution version of 9625/9630 was geologically analysed, I lifted the curtain of my questions. It was a surprise the new information about the controversy and the analogy of a geological phenomena to a mother alien spaceship.


"...Thanks for the information; I was not aware of these discussions.  The narrow ridge you have highlighted looks similar to a single septum of a wrinkle ridge, a type of feature associated with horizontal compression..."


My Thanks and appreciation to British Geological Survey and U.S Geological Survey and specially to Mr. John B. Murray and Mrs. Deborah.



A landslide caused by one of the 2001 El Salvador earthquakes

A landslide caused by one of the 2001 El Salvador earthquakes

A landslide is a geological phenomenon which includes a wide range of ground movement, such as rock falls, deep failure of slopes and shallow debris flows. Although gravity's action on an over-steepened slope is the primary reason for a landslide, there are other contributing factors affecting the original slope stability (continue reading... Wikipedia)



Krieger crater and vicinity, showing wrinkle ridges in the surrounding mare and sinuous rilles along the left edge.

Krieger crater and vicinity, showing wrinkle ridges in the surrounding mare and sinuous rilles along the left edge.

A wrinkle-ridge is a type of feature commonly found on Lunar mares. These features are low, sinuous ridges formed on the maria surface that can extend for up to several hundred kilometers. The wrinkle-ridges are tectonic features created when the basaltic-lava first cooled and contracted. They frequently outline ring structures buried within the mare; follow circular patterns outlining the mare, or intersect protruding peaks. They are sometimes called veins due to their resemblance to the veins that protrude from beneath the skin.

Wrinkle-ridges are named with the Latin designation dorsum (plural dorsa). The standard IAU nomenclature uses the names of people to identify wrinkle-ridges on the Moon. Thus the Dorsa Burnet are named for Thomas Burnet, and the Dorsum Owen is named after George Owen.

Wrinkle-ridges can also be found on Mars, for example in Chryse Planitia, as well as on several of the asteroids that have been visited by spacecraft, as well as Mercury, and a couple of moons of Jupiter and Saturn. (read article... Here)