Albert Johannsen
Albert Johannsen (born December 3, 1871 in Belle Plaine , Iowa , † January 11, 1962 in Winter Park , Florida ) was an American geologist , petrographer and mineralogist .
Johannsen initially studied architecture and received his doctorate in petrography from Johns Hopkins University in 1903 . After some time with the US Geological Survey , he was from 1909 at the University of Chicago , where he became professor of petrography.
He dealt mainly with petrography and the study of rock thin sections, of which he left an extensive collection to the University of Chicago. Waldemar Theodor Schaller named the mineral Johannsenite after him in 1932 to honor his work.
Fonts
- Manual of Petrographic Methods . McGraw Hill, New York 1918.
- A descriptive petrography of the igneous rocks . 4 volumes (1950–1958). University of Chicago Press, Chicago.
- Essentials for the Microscopical Determination of Rock-forming Minerals, in thin sections . University of Chicago Press, Chicago 1922.
- A key for the determination of rock-forming minerals in thin sections . Wiley, 1908.
In 1916 he translated Ernst Weinschenk's geology into English ( Fundamental Principles of Petrology . McGraw Hill, New York 1916. ).
Web links
Individual evidence
| personal data | |
|---|---|
| SURNAME | Johannsen, Albert |
| BRIEF DESCRIPTION | American geologist and mineralogist |
| DATE OF BIRTH | December 3, 1871 |
| PLACE OF BIRTH | Belle Plaine, Iowa |
| DATE OF DEATH | January 11, 1962 |
| Place of death | Winter Park (Florida) |