Gustaaf Adolf Frederik Molengraaff

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Gustaaf Molengraaff
Gustaaf Adolf Frederik Molengraaff
Born
Gustaaf Adolf Frederik Molengraaff

(1860-02-27)27 February 1860
Died26 March 1942(1942-03-26) (aged 82)

Gustaaf Adolf Frederik Molengraaff (27 February 1860 – 26 March 1942) was a Dutch geologist, biologist and explorer. He became an authority on the geology of South Africa and the Dutch East Indies.

Gustaaf Molengraaff studied

Dutch Antilles led by Willem Frederik Reinier Suringar and Karl Martin. He became PhD with a thesis on the geology of Sint Eustatius. He studied crystallography in Munich, where he also took the opportunity to study the geology of the Alps
nearby.

In 1888 Molengraaff took a job as a teacher at the University of Amsterdam. Before his assignment courses in geology were given by the chemist Jacobus Henricus van 't Hoff. During his assignment in Amsterdam, Molengraaff travelled to South Africa to study gold deposits (1891) and to Borneo (1894) where he explored large parts of the inland. Teaching at Amsterdam was not to his liking, because there were too little materials and students available.

In 1897 Molengraaff became "state geologist" of the

Bushveld complex. In 1900 he got involved in the Second Boer War and had to return to the Netherlands. This gave him time to write a report on the geology of the Transvaal, and travel to Celebes
, where he (again) studied gold deposits.

Due to his reputation as a geologist he could return to South Africa in 1901 to work as a geological consultant. One of his assignments was to describe the newly found

Cullinan diamond
for the Central Bank of South Africa. Meanwhile the Boer War still had his attention. One of his ideas was to give each soldier a small tin identity card, which later became practice in armies around the world.

In 1906 he became professor at

Alexander Du Toit, both geologists were among the (at that time rare) supporters of Alfred Wegeners' continental drift
theory.

Molengraaff was a close friend of

concentration camp
.

Molengraaff retired in 1930.

References

  1. ^ "Gustaaf Adolf Frederik Molengraaff (1860–1942)". Royal Netherlands Academy of Arts and Sciences. Retrieved 30 July 2015.
  2. ^ Birch, F. "Reginald Aldworth Daly" (PDF). National Academy of Sciences. Retrieved 28 January 2024.
  3. ^ "Abstract: THE 1921-22 SHALER MEMORIAL EXPEDITION TO SOUTH AFRICA: R. A. DAly's INFLUENCE ON BUSHVELD PIONEERS G. A. F. MOLENGRAAFF AND A. L. HALL (2004 Denver Annual Meeting (November 7–10, 2004))".

Sources

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