Richat Structure [see Wikipedia] not that old.........
Sorry, ZYSIS, ....geologically speaking, it's not that old...it's more likely the extinct remains of one of those "Super Volcanoes" [ala: Yellowstone] that PBS did a 'special' about...................However, you're on the right track...sort of...only, "this
mudball" was a molten sphere when it arrived in what is now termed: 'Earth Orbit', ca. 3 1/2 billion years ago; the remains of a planetary collision which occurred because our Sun's [star god?] gravitational field drew a planetary object, and its moons, into the main part of the Solar System that resulted in a close enough approach to the planet that once existed between Mars and Jupiter for the moons of this planetary interloper to crash into said planet which exploded....The crustal debris plus other rocky debris forming the Asteroid Belt which follows the general orbit of the erstwhile planet; however, its molten interior and core, coalescing into a sphere [as does all liquid in spatial vacuum] is knocked by the force and direction of the impact out of its original orbit toward the Sun; and, due to its large mass, gravitationally takes one of its former moons with it . ...Ergo, as its speed/momentum decays, the paIr settle into a closer Solar orbit, and become what we now know as the Earth and its Moon.......This is related in the 6500 year old, SUMERIAN 'Tablets of Creation' which were discovered, along with many other Sumerian baked clay tablets, in the ruins of the Assyrian [todays Kurds] capital: Ninevah; and, within the ruins of the palace of the Assyrian king: Ashurbanipal, who avidly collected as many Sumerian 'books' as he could...The Sumerian writings, at that time, were around 2000 years old; and which the Babylonians studied the same way we study the writings of the ancient Romans and Greeks......Modern civilization knew nothing of the Sumerian civilization until
this momentus discovery was made in the year 1870!!!......Futhermore, our long-range Space Probes have verified the Sumerian description of the outer planets!