Haraldur Sigurðsson Explained

Haraldur Sigurðsson
Birth Place:Stykkishólmur, Iceland
Nationality:Icelandic
Fields:Volcanology
Geochemistry
Workplaces:University of Rhode Island
Alma Mater:Queen's University, Belfast (BSc)
University of Durham (PhD)
Thesis Title:The petrology and chemistry of the Setberg volcanic region and of the intermediate and acid rocks of Iceland
Thesis Url:https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.585970
Thesis Year:1970
Doctoral Advisor:George Malcolm Brown

Haraldur Sigurðsson or Haraldur Sigurdsson (born May 31, 1939) is an Icelandic volcanologist and geochemist.

Education

Sigurdsson was born in Stykkishólmur in western Iceland.[1] He studied geology and geochemistry in the United Kingdom, where he obtained a Bachelor of Science (BSc) degree from Queen's University, Belfast, followed by a PhD under the supervision of George Malcolm Brown from Durham University in 1970.[2] [3]

Career and research

Sigurdsson worked on monitoring and research of the volcanoes of the Caribbean until 1974, when he was appointed professor at the Graduate School of Oceanography, University of Rhode Island. He is best known for his work on the reconstruction of major volcanic eruptions of the past, including the eruption of Vesuvius in 79 AD in Italy and the consequent destruction of the Roman cities of Pompeii and Herculaneum.

In 1991, Sigurdsson discovered tektite glass spherules at the Cretaceous–Paleogene boundary (K–T boundary) in Haiti, providing proof for a meteorite impact at the time of the extinction of the dinosaurs.[4] In 2004 he discovered the lost town of Tambora in Indonesia, which was buried by the colossal 1815 explosive eruption of Tambora volcano.[5] [6] In 1999, Sigurdsson published a scholarly account of the history of volcanology.[7] He was also editor in chief of the Encyclopedia of Volcanoes,[8] also published in 1999. He was awarded the Coke Medal of the Geological Society of London in 2004.[9]

Sigurdsson was a key scientist to uncover the sources of lake overturn that took the lives of entire villages nearby Lake Monoun[10] and Lake Nyos in Cameroon.[11] His story was popularized by the Youtuber MrBallen in an episode in January 2023.

Active blogs

Sigurdsson has in recent years been active in blogging in Icelandic on various issues related to his science, geology and geochemistry. There he has also been active in criticizing USA government, world capitalism [12] and activities of Chinese companies in the Arctic.[13] He openly supports the left movement in USA. Sigurdsson has written on the Solarsilicon Project being developed by the US Company Silicor Materials Inc. in Iceland and its pollution.[14] As well as other environmental issues including global warming.

Publications

Notes and References

  1. Web site: Haraldur, The Volcanologist . 2023-06-27 . LAVA Centre . en-US.
  2. PhD. Durham University. The petrology and chemistry of the Setberg volcanic region and of the intermediate and acid rocks of Iceland. Haraldur. Sigurðsson. 1970. . dur.ac.uk. 768299868.
  3. http://www.gso.uri.edu/users/haraldur home page
  4. Sigurdsson . Haraldur . Steven. D'Hondt. Michael A.. Arthur. Timothy J.. Bralower. James C.. Zachos. Mickey. Van Fossen. James E. T.. Channel . 1991 . Glass from the Cretaceous/Tertiary boundary in Haiti . Nature . 349 . 6309 . 482–487 . 10.1038/349482a0. 1991Natur.349..482S . 2027.42/62562 . 43763504 . free.
  5. http://news.bbc.co.uk/1/hi/sci/tech/4748902.stm 'Pompeii of the East' discovered
  6. Sigurdsson, H. . Carey, S. . 1989 . Plinian and Co-Igmibrite Tephra Fall from the 1815 Eruption of Tambora Volcano . Bulletin of Volcanology . 51 . 4 . 243–270 . 10.1007/BF01073515. 1989BVol...51..243S . 132160294 .
  7. Book: Sigurdsson, Haraldur . Melting the Earth:: the history of ideas on volcanic eruptions . 1999 . Oxford University Press . New York . 260 . 0-19-510665-2 .
  8. Book: Haraldur Sigurdsson . Bruce Houghton . Hazel Rymer . Hazel Rymer . John Stix . Steve McNutt . Encyclopedia of Volcanoes . 1999 . Academic Press . San Diego . 1417 . 978-0-12-643140-7 .
  9. Web site: Geological Society - 2004 Awards: Citations, Replies . 2009-07-06 . dead . https://web.archive.org/web/20120229185935/http://www.geolsoc.org.uk/gsl/society/history/page2983.html . 2012-02-29 ., retrieved 06/07/2009
  10. Sigurdsson . H. . Devine . J. D. . Tchua . F. M. . Presser . F. M. . Pringle . M. K. W. . Evans . W. C. . 1987 . Origin of the lethal gas burst from Lake Monoun, Cameroun . Journal of Volcanology and Geothermal Research . en . 31 . 1 . 1–16 . 10.1016/0377-0273(87)90002-3 . 0377-0273.
  11. Web site: Magazine . Smithsonian . Krajick . Kevin . Defusing Africa's Killer Lakes . 2023-06-25 . Smithsonian Magazine . en.
  12. http://vulkan.blog.is/blog/vulkan/entry/1414084/ Sigurdsson supporting the left in the USA
  13. http://vulkan.blog.is/blog/vulkan/entry/1514991/ Sigurdsson criticizing activities of Chinese companies in Iceland
  14. http://vulkan.blog.is/blog/vulkan/?offset=90 Sigurdsson against the US company Silicor Materials
  15. https://www.amazon.com/dp/3639108310 Amazon
  16. https://openlibrary.org/b/OL1345318M/Caribbean-volcanoes Open Library
  17. Web site: Haraldur Sigurdsson.