Charles Schuchert, in a paper called "Atlantis and the Permanency of the North Atlantic Ocean Bottom" (1917), discussed a lecture by Pierre-Marie Termier in which Termier suggested "that the entire region north of the Azores and perhaps the very region of the Azores, of which they may be only the visible ruins, was very recently submerged", reporting evidence that an area of 40,000 sq. mi and possibly as large as 200,000 sq. mi. had sunk 10,000 feet below the surface of the Atlantic Ocean. Schuchert's conclusion was: "(1) that the Azores are volcanic islands and are not the remnants of a more or less large continental mass, for they are not composed of rocks seen on the continents; (2) that the tachylytes dredged up from the Atlantic to the north of the Azores were in all probability formed where they are now, at the bottom of the ocean; and (3) that there are no known geologic data that prove or even help to prove the existence of Plato's Atlantis in historic times."