quote:
Originally posted by Tranquility Base:
It is evident from mainstream science that most of the land surface of the earth (if not all of it) has been underwater!
Possibly. But not all at the same time!
TB, The Sierra de Guadarrama (50Km NW Madrid), is of Precambrian and Cambrian materials uplifted in the Hercynian orogeny. Since then, it has never again been covered by sea waters. It was fully eroded and lifted again in the Alpine orogeny. Now it is a crystalline mass, with its higher peak 2.400m. (Mt. Penalara): Gneiss, slate, quartzite, and intrusive granitic plutons.
quote:
The geological column on land is primarily marine!
All the perforations NW Madrid to the crystalline block, give the same result: unconsolidated argillaceous material, of continental origin, derived from erosion of Sierra de Guadarrama mountains.