Frederick Stewart (geologist)
| Frederick Stewart | |
|---|---|
| Born |
Frederick Henry Stewart January 16, 1916 |
| Died | December 9, 2001 (aged 85) |
| Nationality | British |
| Awards | FRS (1964) |
Sir Frederick Stewart (16 January 1916 – 9 December 2001) was a Scottish geologist, who worked in industry and academic research. He retired as Professor Emeritus in Geology at the University of Edinburgh.
Stewart's father was a lecturer in engineering at Aberdeen University.
He was born in Aberdeen, and educated at Fettes College and Robert Gordon's College. He studied zoology for three years at Aberdeen University, before switching to geology, and studying at Emmanuel College, Cambridge as a postgraduate. While there, he studied the geology of the Isle of Skye and the village of Belhelvie, in Aberdeenshire.
In 1941, Stewart joined ICI's research division as a mineralogist. The outbreak of World War II meant that access to previous sources of many raw materials (including German potassium) were cut off. As a result, previously uneconomic deposits, but that were located in Britain and therefore more accessible, were explored, and Stewart found a deposit of potassium salts in North Yorkshire. It had many uses in industry, such as in cement, glass, metal finishing, disinfectants, fertilisers and dyes. The discovery brought recognition for Stewart from both the Geological Society of London and the Mineralogical Society of America - the latter group's interest due to the similarity of the Yorkshire deposits to those in New Mexico and Texas.
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