Fernand Crombette wrote about this:
"if what the Bible says is true, Jerusalem is at the centre of the world. He made up his mind to look into the matter. During his researches he discovered that Father P. Placet, a monk in 1668, had written a work entitled
“The proof that before the Flood, there were no islands and that America was not separated from the rest of the world”. Knowing also of Wegener’s thesis on continental drift, he returns to the libraries (and towards the end of his studies, during the war 1939-1945, at the University of Grenoble) to find geological and bathymetric charts in an attempt to reconstitute the primitive single known to geographers as the PANGEA.
Crombette’s inspired idea led him to look below the present contours of the continents, which vary according to the sea level, to the extreme edge of the continental shelf at a depth of 2.000 metres, where the sea bed falls away in a sharp drop into the ocean depths of 4.000 metres. Sixty years later, sub-marine drilling have confirmed that the continental granite shelf, beneath the marine sediments, is, in fact, found at this point. The motivation for his research at such a depth was Bible-based because he took the cosmogenic thesis of Kant, according to which the
“waters on high”, separated by God at Creation, formed a water vapour ring around the earth which produced the forty days of great rain during the Flood.
https://www.jesusmariasite.org/crombette-if-the-world-only-knew/