Before revision: History The magnetotelluric technique was introduced independently by Japanese scientists in 1948 (Hirayama, Rikitake), Russian geophysicist Andrey Nikolayevich Tikhonov in 1950 and the French geophysicist Louis Cagniard in 1953.
After revision: History The magnetotelluric technique was introduced independently by Japanese scientists in 1948 (Hirayama, Rikitake), Soviet geophysicist Andrey Nikolayevich Tikhonov in 1950 and the French geophysicist Louis Cagniard in 1953.