Reinout Willem van Bemmelen

Biography

Rein van Bemmelen was born in Batavia and spent his youth in the Dutch East Indies, where his father Willem van Bemmelen was the director of the Magnetic, Meteorological and Seismological Observatory. From 1920 to 1927 he studied mining engineering at Delft University in the Netherlands. Among his teachers were H.A. Brouwer and G.A.F. Molengraaff. Van Bemmelen became PhD in 1927 with a study on the geology of the Cordillera Bética. He took courses in volcanology at Naples and then worked with the geological survey in the Dutch East Indies, where he mapped parts of Java and Sumatra. From 1933 to 1935 he studied pedology at the Technical University of Vienna. After that he went back to Java to continue his research there. His main interest was in volcanology (magmas and pyroclastic rocks), structural geology and tectonics, especially sliding tectonics.

He was able to observe the 1930s activity of Mount Merapi from the volcanological post at Babadan on the north west slope.

When the Japanese occupied the Dutch East Indies in World War II Van Bemmelen and his wife spent three years in a prisoners camp. He belonged to a small number of professionals who were allowed by the Japanese to continue with their work. It was during that time that he managed to publish the 1941 issue of the Netherlands East Indian Volcanological Survey, which came out in 1943. With the end of the war they moved to the Netherlands, where they lived in The Hague. The Dutch government assigned to Van Bemmelen the job to recollect all information on the geology of the Indonesian Archipelago. (Van Bemmelen had summarized that information in a manuscript destroyed during the war). (The manuscript was entrusted to his assistant who took it to Yogyakarta. When diplomatic relations between the Netherlands and Indonesia were established, the manuscript was returned to him. In the meantime, Van Bemmelen was able to produce a similar document and in 1949 his The Geology of Indonesia was published, just after Indonesia's independence. Van Bemmelen then spent a year as assistant of S.G. Trooster at Utrecht University and then worked for Shell as a consultant.

Van Bemmelen retired in 1969. Geologie en Mijnbouw marked the occasion of his seventieth birthday with a special issue. Following the death of his wife in 1983 he moved to Austria, where he died shortly after. A controversial TV series was made after his death about his role in the euthanasia of his wife.