Remnants of Long Walls or Channels in Mauritania

Some kind of large-scale groove or something, quick 1-minute video.



Many of them, here's a few:
goo.gl/maps/94gjtySNvcy
goo.gl/maps/3QHtfV3W25E2
goo.gl/maps/iwrJHKjcVDG2
goo.gl/maps/X8SNzHq6W4m
goo.gl/maps/KsFboTEHgj92
goo.gl/maps/mrF6WPe4LCk (look closely, this one is very faint)

What do you think it is?

I also have other google earth anomaly vids on the channel if you want to check them out.

Hi and welcome, To Google Earth Community Forums

Hello Bryan and welcome to the forum.

Interesting places in Mauritania. Statements will probably only can make a user with geological knowledge. For me it looks like rifts and folds. Unfortunately, GE is not helpful with the altitude profiles there, as it is probably too coarse in the raster.

Example:

Attachments:

Rift.kmz (591 B)

Hi Bryan!

Thanks for sharing your find (to find out) - that is the reason why we all around! (:

Interesting spotting... probably features of some kind of a vault system...?



... Well I think, I bookmark this thread and will wait for some more detailed explanation.
...
Browsing around there I just have already  found this "miraculous" settlement, seems to be in perfect integration with its natural surroundings:



"Balanced Integration" @ 17°44'02"N 12°09'53"W

And another settled site with giant linear surface features at >>17.786685,-12.169750<<


***
Also you have made me to set up a new "Mauritania" folder for my Ancient African Stone Structures tribute-thread. Here I attach some v0.1 version, with 170+ marks I have done in a 4 hours GE ride:
Mauritania.kmz (15.38 KB)

Thousands of such old sites can be find out there:
 
"Fortified by Nature"

Ending an example of a multi-walled enclosure of enclosures:



Thank you driving my attention to these!

Welcome around!

G

The larger structures are not man made.
There was one red dot in the followup KMZ which pointed at a man made animal pen fence structure. 


What looks like walls  , in the black rock, are dykes. The large flat areas of black rock look like shield volcanos or  lava fields, but they are probably   sills of the magma,  which are horizontal gaps in the rock stratra  filled with magma. 

The magma also  fills vertical faults to create dykes .. A dyke is a dutch word meaning wall.. 

The mountain /hil above his since eroded away, but the igneous rock is hard and resists eroding.




Mauratania has a large part of the West African Craton . The West african craton is 2 billion years old.  Other parts of africa near it are younger.
The craton appears to have been affected by a very large magmatic event that also created such areas in parts of the pre-cambrian  (pre-Pangea) supercontinent that were near the west africa craton.  Pangea existed  only 300 million years ago.
the previous supercontinent (s) existed 1 -  2 billion years ago.



See
www.sciencedirect.com/science/article/pii/S0024493712003040


You will see the "town"  "village"  "housing" like structures are restricted to the igneous rock of the same age.
Not that the structures look like  they were anything but brandnew... if they are not brand new, then the sands and the erosion.. well why is there no history of destroyed sections and overlapping development of new and old ? 
 
Why were humans judging their choice of  building material based on age, to choose exactly  same age , like, 1300 million years old rock ? whats wrong with older or younger ?
whats wrong with  sandstone.. thats easier to shape ! And that is why the man made fence was made of red rock. They skipped the black rock, its far to heavy to lift and hard to shape, when there was red rock nearby..


So what are the black rock structurs ? domes.. where lava bubbles  ... or the underground equivalent,  Sills. Just like an above ground volcano, or undersea volcano, there can be  the same thing as an underground volcano . Its just called a flow of magma.. but if  it has enormous pressure, it can create a new horizontal layer inside the old rock ...  just as a shield volcano or lava flow can create  a flat strata on the surface of the ground ..  The sill can form a dome shape,   so the sill can turn into what looks like the remnant of a dome.. 










Leon
Bachelor of Engineering.

Nov 24, 2019 0:24:07 GMT syzygy said:

... Well I think, I bookmark this thread and will wait for some more detailed explanation. ...

Done, and did worth the time! (:

Thanks Leon (leong) - Bachelor of engineering for the detailed explanation and other fertile thoughts! - seems I have said well; you must be fondled as Léon the Professional! (:

How did you find us? I see some Aussie links in your replies - are you from Down Under?