Frederik Johnstrup
Johannes Frederik Johnstrup (born March 12, 1818 in Christianshavn , † December 31, 1894 in Copenhagen ) was a Danish geologist .
Life
From 1837 Johnstrup studied natural sciences at the Polytechnic in Copenhagen, graduating in 1844. Then he was assistant to Johann Georg Forchhammer at the Mineralogical Museum. In 1846 he became professor of mineralogy , geology and physics at the Sorø Akademi and in 1848 adjunct and in 1850 senior teacher at the grammar school in Kolding . In 1851 he returned to Sorø as a senior teacher (the academy had ceased to exist in 1849, but the school continued to exist), where he also organized their collection of physical instruments. In 1866 he became professor of mineralogy and geology at the University of Copenhagen as a successor to Forchhammer and at the Polytechnic. At the university, he was also responsible for the Mineralogical Museum, which he expanded and moved in 1893. In 1888 he was the founder and first director of the Danish geological survey.
In the beginning he mainly dealt with chemistry , including studies on drinking water and groundwater . He dealt with the Danish chalk formations ( Faxekalk , Grünsande etc.), Quaternary uplifts at Møns Klint and their connection with the chalk formations on Rügen , the geology of Bornholm , cryolite deposits in Greenland , volcanism on Iceland and coal on the Faroe Islands . Johnstrup was in Iceland for field studies in 1871 and 1876, in the Faroe Islands in 1872 and in Greenland in 1874. Like his Swedish colleague Otto Martin Torell, he was a supporter of the theory of Ice Age glaciation in Scandinavia (in which he was a pioneer in Denmark) and supported this with references to glacier movements in Denmark. Like the zoologist Japetus Steenstrup, he was not a supporter of Darwin's theory of evolution .
In 1878 he founded the Commission for the Scientific Study of Greenland ( Commissions for Videnskabelige undersøgelser i Grønland , KVUG) and its series of publications Meddelelser om Grønland .
In 1881/82 he was rector of the University of Copenhagen, and in 1894 he received an honorary doctorate from her . In 1864 he became a member of the Royal Danish Academy of Sciences and in 1881 of the Leopoldina .
In 1892 he became commander of the Dannebrog Order .
He was married to Marie Luise Dahl since 1850.
literature
- Carl Frederik Wandel: Nekrolog. Johannes Frederik Johnstrup . In: Meddelelser om Grønland . tape 16 , 1896, pp. V – XI (Danish).
Web links
- Johannes Frederik Johnstrup in Den Store Danske Encyklopædi (Danish)
- F. Johnstrup in Dansk biografisk leksikon (Danish)
Individual evidence
- ↑ Brief biography at the Darwin Archives
- ^ Member entry by Frederic Johnstrup at the German Academy of Natural Scientists Leopoldina , accessed on October 21, 2015.
| personal data | |
|---|---|
| SURNAME | Johnstrup, Frederik |
| ALTERNATIVE NAMES | Johnstrup, Johannes Frederik (full name) |
| BRIEF DESCRIPTION | Danish geologist |
| DATE OF BIRTH | March 12, 1818 |
| PLACE OF BIRTH | Christianshavn |
| DATE OF DEATH | December 31, 1894 |
| Place of death | Copenhagen |