[1] Verhoogen became ill at age 17 from poliomyelitis, which caused him problems throughout the rest of his life.
St. Helens, Washington) from Stanford University, although most of the doctoral work was supervised by Williams at Berkeley.
During the late 1930s and World War II, he was in the Belgian Congo, where he studied the volcano Nyamuragira and worked on the procurement of strategic mineral resources.
[1] In 1961 he calculated the latent heat release associated with inner-core solidification and concluded it would indeed drive thermal convection in the outer core and, furthermore, could be a source of energy for generating Earth's magnetic field through dynamo action in the electrically conducting fluid outer core.
[1] He was twice a Guggenheim Fellow (academic years 1953-1954 and 1960–1961)[2] and received the André Dumont Medal of the Belgian Geological Society.