Richat Structure – Second Richat Semsiyat Dome Pseudo-Extension
Richat second dome · Semsiyat dome Atlantis extension
Pseudoarchaeology (2018–present)·Pseudoarchaeology (Richat extension)·🇲🇷 Adrar, Richat Structure Semsiyat dome, Mauritania
About
About Richat Structure – Second Richat Semsiyat Dome Pseudo-Extension
A 2018 Facebook Atlantis spin-off proposes a 'Second Richat' – Semsiyat dome 30 km south of the main 45 km Richat Structure at 21.11°N 11.45°W, as a hypothesized 'outer harbour' of the pseudo-Atlantis concentric rings. Semsiyat is a smaller 5 km fractured Paleozoic sandstone dome on the same anticline, with concentric quartzite ribs and natural wadi gaps mis-identified as artificial harbour channels. No Atlantis rings, no 9000 BCE harbour mud, no Pleistocene shoreline at 400 m asl semi-desert; the dome is Devonian intrusion with K–Ar dated 400 Ma. The extension tries to rescue Richat pseudo by doubling the dome when first dome's canal-ring ratios failed Popper filter.
Why it mattersExample of pseudo extension to rescue failing ratios; debunk distinguishes anticline geology from concentric canal engineering.
Open questions
Mysteries & theories
Mysteries
- 01Why second dome would be harbour if Plato described one ring plain
Theories
- 01Post-hoc expansion: when canal ratio fails, double domes to fit narrative
Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.
History
How it came to be
- Built
- 2018 (second dome video)
- Period
- Pseudoarchaeology (2018–present)
- Culture
- Pseudoarchaeology (Richat extension)
- Purpose
- Pseudo – double Richat to salvage canal ratio
- Abandoned
- —
- Rediscovered
- —
- Excavation
- Not applicable
2018
YouTube video claims Semsiyat is Atlantis outer harbour ring
2020
Geologists: Semsiyat is Devonian anticline 400 Ma, wadi gaps natural
On the ground
Structures & features
21.1100° N · 11.4500° W · 400 m · 3 mapped features
Semsiyat Dome
harbour5 km sandstone dome at 21.11°N 11.45°W – Devonian anticline at Richat Structure – Second Richat Semsiyat Dome Pseudo-Extension
21.1100° N · 11.4500° WWadi Gap Pseudo-Canal
canalWadi gap through quartzite rib – pseudo ring canal at Richat Structure – Second Richat Semsiyat Dome Pseudo-Extension
21.1050° N · 11.4520° WRichat Main Eye
structure45 km main Richat anticline 400 Ma – source dome 30 km north at Richat Structure – Second Richat Semsiyat Dome Pseudo-Extension
21.1240° N · 11.3950° W
Gallery