Otto Ampferer

Otto Ampferer (1 December 1875 in Hötting near Innsbruck – 9 July 1947) was an Austrian alpinist and geologist. To explain the complex processes of Orogeny, he developed his "theory of undercurrent" with the idea of a partially plastic deep Earth's crust (asthenosphere). He became – even before Alfred Wegener – the pioneer of the modern view of continental drift.