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John Tuzo Wilson

John Tuzo Wilson
CC OBE FRS FRSE FRSC
John Tuzo Wilson in 1992
Born(1908-10-24)October 24, 1908
Ottawa, Ontario, Canada
DiedApril 15, 1993(1993-04-15) (aged 84)
Toronto, Ontario, Canada
Alma mater
Known forTheory of Plate tectonics
Awards
Scientific career
FieldsGeophysics & geology
InstitutionsUniversity of Toronto
ThesisThe Geology of the Mill creek - Stillwater Area, Montana (1936)
Doctoral advisorWilliam Taylor Thom, Jr
Doctoral studentsHarold Williams
Notes

John Tuzo Wilson (October 24, 1908 – April 15, 1993) was a Canadian geophysicist and geologist who achieved worldwide acclaim for his contributions to the theory of plate tectonics. He added the concept of hot spots, a volcanic region hotter than the surrounding mantle (as in the Hawaii hotspot). He also conceived of the transform fault, a major plate boundary where two plates move past each other horizontally (e.g., the San Andreas Fault).

His name was given to two young Canadian submarine volcanoes called the Tuzo Wilson Seamounts.[3] The Wilson cycle of seabed expansion and contraction (associated with the Supercontinent cycle) bears his name. One of the two large low-shear-velocity provinces was given the name Tuzo after him, the other being named Jason after W. Jason Morgan, who furthered Wilson's work into plume theory.

Early life and education

Wilson was born in Ottawa on October 24, 1908, the son of John Armistead Wilson CBE, and his wife, Henrietta Tuzo.[4] Wilson's father was of Scottish descent and his mother was a third-generation Canadian of French descent.

He became one of the first people in Canada to receive a degree in geophysics, graduating from Trinity College at the University of Toronto in 1930.[5] He obtained a second (BA) degree from St. John's College, Cambridge in 1932 and then a doctorate (ScD). He then pursued further graduate studies as Princeton University, where he received a Ph.D. in geology in 1936 after completing a doctoral dissertation titled "The Geology of the Mill creek - Stillwater Area, Montana."[6]

Career

In 1936, Wilson joined the Geological Survey of Canada as a government geologist. This was interrupted by the Second World War during which he served with the Royal Canadian Engineers, serving in Europe and reaching the rank of Colonel. He was involved in Operation Musk Ox.[7] For his wartime service, he was appointed an OBE.

In 1946 he was appointed the first Professor of Geophysics at the University of Toronto.

He made significant contributions to the theory of plate tectonics, adding a concept of hot spots, hot region beneath the crust. Plate tectonics is the scientific theory that the rigid outer layers of the Earth (crust and part of the upper mantle), the lithosphere, is broken up into around 13 pieces or "plates" that move independently over the weaker asthenosphere. Wilson maintained that the Hawaiian Islands were created as a tectonic plate (extending across much of the Pacific Ocean) shifted to the northwest over a fixed hot spot, spawning a long series of volcanoes. He also conceived of the transform fault, a major plate boundary where two plates move past each other horizontally (e.g., the San Andreas Fault).

The Wilson cycle of seabed expansion and contraction (associated with the Supercontinent cycle) bears his name, in recognition of his iconic observation that the present-day Atlantic Ocean appears along a former suture zone[8] and his development in a classic 1968 paper[9] of what was later named the "Wilson cycle" in 1975 by Kevin C. A. Burke, a colleague and friend of Wilson.[10]

His name was given to two young Canadian submarine volcanoes called the Tuzo Wilson Seamounts.[11]

Wilson was president (1957–1960) of the International Union of Geodesy and Geophysics (IUGG).

In 1967 he became principal of Erindale College, now known as University of Toronto Mississauga. In 1974 he left to become the Director General of the Ontario Science Centre. In 1983 he became Chancellor of York University, Toronto.

He was the host of the television series The Planet of Man.

Honours and awards

For his service during the Second World War, Wilson was appointed an Officer of the Order of the British Empire in 1946. In 1969, he was made an Officer of the Order of Canada and was promoted to the rank of Companion of that order in 1974.[12] He was elected to the American Academy of Arts and Sciences in 1971 and the American Philosophical Society in 1971.[13][14] Wilson was awarded the John J. Carty Award from the National Academy of Sciences, of which he was already a member, in 1975.[15][16] In 1978, he was awarded the Wollaston Medal of the Geological Society of London and a Gold Medal by the Royal Canadian Geographical Society. He also served as honorary vice president of the RCGS.[17] He was a Fellow of the Royal Society, the Royal Society of Canada, and of the Royal Society of Edinburgh.[18]

He was elected president-elect (1978–1980) and president (1980–1982) of the American Geophysical Union. He also served as the director general of the Ontario Science Centre from 1974 to 1985.

Wilson and his plate tectonic theory are commemorated on the grounds of the Centre by a giant "immovable" spike that records the amount of plate movement since Wilson's birth.

The J. Tuzo Wilson Medal of the Canadian Geophysical Union recognizes achievements in geophysics. He is also commemorated by a named memorial professorship and an eponymous annual public lecture delivered at the University of Toronto.

He is one of the 2016 inductees into Legends Row: Mississauga Walk of Fame.[19]

Personal life

Photography

Wilson was an avid traveller and took a large number of photographs during his travels to many destinations, including European countries, parts of the then USSR, China, the southern Pacific, Africa, and to both polar regions. Although many of his photos are geological—details of rocks and their structures or panoramas of large formations—the bulk of his photos are of the places, activities and people that he saw on his travels: landscapes, city views, monuments, sites, instruments, vehicles, flora and fauna, occupations and people.

Family

In 1938 he married Isabel Jean Dickson.[1]

He retired in 1986 and died in Toronto on April 15, 1993.

Selected publications

See also

References

  1. ^ a b Garland, G. D. (1995). "John Tuzo Wilson. 24 October 1908–15 April 1993". Biographical Memoirs of Fellows of the Royal Society. 41: 534–552. doi:10.1098/rsbm.1995.0032.
  2. ^ West, Gordon F.; Farquhar, Ron M.; Garland, George D.; Halls, Henry C.; Morley, Lawrence W.; Russell, R. Don (2014). "John Tuzo Wilson, a man who moved mountains". Canadian Journal of Earth Sciences. 51 (3): xvii. Bibcode:2014CaJES..51D..17W. doi:10.1139/cjes-2013-0175.
  3. ^ Cousens, Brian L.; Chase, R. L.; Schilling, J.-G. (1985). "Geochemistry and origin of volcanic rocks from Tuzo Wilson and Bowie seamounts, northeast Pacific Ocean". Canadian Journal of Earth Sciences. 22 (11): 1609–17. Bibcode:1985CaJES..22.1609C. doi:10.1139/e85-170.
  4. ^ Biographical Index of Former Fellows of the Royal Society of Edinburgh 1783–2002 (PDF). The Royal Society of Edinburgh. July 2006. ISBN 978-0-902198-84-5. Archived from the original (PDF) on March 4, 2016. Retrieved July 21, 2019.
  5. ^ Eyles, Nick and Andrew Miall, Canada Rocks: The Geologic Journey, Fitzhenry & Whiteside, 2007, p. 38 ISBN 978-1-55041-860-6.
  6. ^ Wilson, John Tuzo (1936). The Geology of the Mill creek - Stillwater Area, Montana. Princeton, N.J.: Dept. of Geological and Geophysical Sciences.
  7. ^ Biographical Index of Former Fellows of the Royal Society of Edinburgh 1783–2002 (PDF). The Royal Society of Edinburgh. July 2006. ISBN 978-0-902198-84-5. Archived from the original (PDF) on March 4, 2016. Retrieved July 21, 2019.
  8. ^ Wilson, J. Tuzo (1966). "Did the Atlantic Close and then Re-Open?". Nature. 211 (5050): 676–681. Bibcode:1966Natur.211..676W. doi:10.1038/211676a0. ISSN 0028-0836. S2CID 4226266.
  9. ^ Wilson, J. Tuzo (1968). "Static or Mobile Earth: The Current Scientific Revolution". Proceedings of the American Philosophical Society. 112 (5): 309–320. ISSN 0003-049X. JSTOR 986051.
  10. ^ Wilson, R. W.; Houseman, G. A.; Buiter, S. J. H.; McCaffrey, K. J. W.; Doré, A. G. (2019). "Fifty years of the Wilson Cycle concept in plate tectonics: an overview". Geological Society, London, Special Publications. 470 (1). London: 1–17. Bibcode:2019GSLSP.470....1W. doi:10.1144/SP470-2019-58. S2CID 199903646.
  11. ^ Cousens, Brian L.; Chase, R. L.; Schilling, J.-G. (1985). "Geochemistry and origin of volcanic rocks from Tuzo Wilson and Bowie seamounts, northeast Pacific Ocean". Canadian Journal of Earth Sciences. 22 (11): 1609–17. Bibcode:1985CaJES..22.1609C. doi:10.1139/e85-170.
  12. ^ "Order of Canada citation". Governor General of Canada.
  13. ^ "John Tuzo Wilson". American Academy of Arts & Sciences. Retrieved August 30, 2022.
  14. ^ "APS Member History". search.amphilsoc.org. Retrieved August 30, 2022.
  15. ^ "John J. Carty Award for the Advancement of Science". National Academy of Sciences. Archived from the original on February 28, 2015. Retrieved February 25, 2011.
  16. ^ "J. Tuzo Wilson". www.nasonline.org. Retrieved August 30, 2022.
  17. ^ "Gold Medal". Royal Canadian Geographical Society. Archived from the original on November 6, 2018. Retrieved December 10, 2010.
  18. ^ "John Tuzo Wilson" (PDF). obituary. Royal Society of Edinburgh. Archived from the original (PDF) on June 5, 2015. Retrieved September 3, 2014.
  19. ^ "Malton native and NHL legend Paul Coffey heads Legends Row Class of 2016". October 27, 2016.
  • "J. Tuzo Wilson". GSA Today, Rock Stars. September 2001. Retrieved October 14, 2013.


Academic offices
Preceded by Chancellor of York University
1983–1986 		Succeeded by
Professional and academic associations
Preceded by President of the Royal Society of Canada
1972–1973 		Succeeded by
Professional and academic associations
Preceded by
Office established
 President of the Canadian Geophysical Union
1974–1975 		Succeeded by
Denis Ian Gough
Quelle: https://en.wikipedia.org/wiki/John_Tuzo_Wilson