Post by bemerkenswelt on Nov 21, 2020 17:05:13 GMT
Since we have Google Earth a lot of formerly unknown prehistoric monuments have been found all over the world.
The Sahara desert is full of such artifacts of different shapes.
Throughout the whole of the Tassili N'Ajjer, down to the Hoggar Mountains, there are elaborately constructed stone monuments, whose shape resembles keyholes. Therefore they are called "Monuments en trou de serrure" or "Keyhole monuments". According to current knowledge, these keyholes are probably the oldest of the known Sahara monuments. Dating has shown an age of up to 7,000 years. However, their function remains unclear somtimes. Some of them were clearly graves, others had no evidence of funerals.
See more pictures of ancient Keyhole Monuments in the Sahara Desert, here on my website >
..., why not share all the related placemarks, I collected within the past fifteen years...
-15 years? -why not? -just the same by me with my mounds!
Only, that I do not have such cool homepage as you do! - Really: congrats for the site and many thanks for sharing all you have explored through the years!
I know some Africa experts with 30.000+ markers of pre-islam, (proto-berber?) monuments, but with not much care of representation. I think was a big work for you making such amount of screenshots, but that is what gives the advantage of your database.
I have noticed low-resolution stripes on GE with no markers on them. When I bump into such low-res areas I do not stop the search for further pieces, only I start ZoomEarth (and/or Bing, and/or ArcGIS) with alternative satellite imagery so as I can continue mapping (giving hi-res ZE-links in low-res GE-placemarks' descriptions).- This way you might find placemarks by me, those are new to your collections - Please feel free to include them into your dataset! (citation: syzygy@GEC 2020)
All for the types you will find placemarks (sorry, nomenclature would need a major update), and even for more... What do you know (think) for example about the ones, I dub 'rondelloids'? (purple-star placemarks in my collections) As my latest knowledge these are not studied before, also research is anchored by now because of the unfavorable political situation of the area. (?) ...
...How you've been able to englishize my nickname, which normally not even gemans understand realy? I guess you are German or at least bi-lingual.
Nope - only, that I am hungarian ( : also I like (word)-jokes very much and frequently I do "nick-analytics" by new-members. I have known the word "Welt" (I have seen it on German made maps), and typing "bemerkensw.." into GTranslator, it offers the phrase "bemerkenswert" I did not know before, but it was easy then...
In high-school (some 25 years ago) I had 4 unpleasant years of having German-language lessons 2 times a week, but I have "resisted"... sorry, since I have never could forgive your language that evil "Der, Die, Das"! ..((( :
2 more Africa related (non-archaeological) placemark collections of mine from around the board:
KitsuneFox: syzygy - posts I have made here do not receive much attention. I may do a detailed writeup of the now lost Edgemont Park in PA, one of the first electrified trolley parks in the world, but still debating. I'm missing 1 key bit of information.
Aug 17, 2021 10:38:20 GMT
syzygy: BRUTAL! Cars as if were matchboxes in a model town... Brilliant infos you share here in shoutbox - why not you post these?
Aug 16, 2021 17:36:00 GMT
KitsuneFox: In the early morning, before sunrise, of Augusts 11th, 12th, and 13th is reported to be the best viewing time for the Perseids meteor shower.
Aug 10, 2021 10:32:11 GMT
KitsuneFox: Davidson Seamount is the tallest known fully underwater mountain in the world, measuring 7,480 feet base to peak.
Aug 5, 2021 0:02:27 GMT
syzygy: ...and about other hills and humps... stone cold wisdom! ( :
Jul 28, 2021 14:13:17 GMT
KitsuneFox: Mount Wycheproof in Australia is the shortest recognized mountain on the world. It stands at 141 feet base to peak. A mineral named 'Wycheproofite' is mined near the location, and is the only known place it's found.
Jul 28, 2021 10:13:47 GMT
syzygy: Cool! Great extra info series about "all stars" highest mountains on Earth!
Jul 22, 2021 6:25:22 GMT
KitsuneFox: Mount Chimborazo in Ecuador is the highest mountain on Earth, as measured from the center of the planet. The peak is over 6,800 feet further away than Mount Everest, and is the closest land on earth to outer space.
Jul 22, 2021 0:13:35 GMT
SpiderX22: Big news in the Aircraft in Flight database (in Transportation) -> HUGE changes. Thanks RaveyThirteen for your post -> will be changing ownership of the collection (hopefully for me lol) -> look forward to this!
Jul 20, 2021 21:02:26 GMT