Louis Cordier
Louis Cordier , with full name Pierre Louis Antoine Cordier, (born March 31, 1777 in Abbeville ; † March 30, 1861 ) was a French geologist, petrograph and mineralogist.
Cordier studied from 1794 at the École des mines , where Louis-Nicolas Vauquelin , René Just Haüy and Déodat Gratet de Dolomieu were among his teachers. In 1797 he accompanied Dolomieu to the Alps and in 1798/99 on Napoleon's expedition to Egypt. 1803 until his death he was professor of geology at the École des Mines (as the successor to Brochant de Villiers ). In 1809 he became chief engineer and in 1822 he was admitted to the Académie des Sciences (in place of Hauy). In 1830 he became Maître des requêtes in the Council of State (Conseille d'État). In 1832 he became inspector general of the mines in south-west France and from 1834 he was vice-president of the Conseil général des mines. In 1837 he became a Councilor of State (Conseiller d'État) and commander of the Legion of Honor (1859 Grand Officer of the Legion of Honor) and in 1839 Peer (Pair) of France . Since 1853 he was a corresponding member of the Bavarian Academy of Sciences .
In 1830 he helped found the French Geological Society and was its first president.
From 1819 he was professor of geology at the Muséum national d'histoire naturelle in Paris as the successor to Barthélemy Faujas de Saint-Fond (1741-1819). In 1824/25, 1832/33 and 1838/38 he was director of the museum in which he expanded the geological exhibition (Galerie de géologie). He increased the collection from 12,000 (1819) to over 200,000 exhibits, which he also arranged and classified (published in the catalog of his assistant Charles Henry Dessalines d'Orbigny in 1848 and 1861).
In 1827 he measured the rise in temperature inside the earth in various mines, measuring the temperature of the rock ( geothermal depth level ). He came to 1 degree Fahrenheit per 25 m and concluded that the interior of the earth would be liquid from about 3 miles and only a thin solid crust existed. He was also a pioneer in the use of the microscope in mineralogy and petrography.
The mineral cordierite is named after him.
Web links
Individual evidence
- ↑ Member entry of Pierre Louis Antoine Cordier (with picture) at the Bavarian Academy of Sciences , accessed on January 19, 2017.
- ^ David Oldroyd, Thinking about the earth, Athlone Press 1996, p. 106
| personal data | |
|---|---|
| SURNAME | Cordier, Louis |
| ALTERNATIVE NAMES | Cordier, Pierre Louis Antoine |
| BRIEF DESCRIPTION | French geologist |
| DATE OF BIRTH | March 31, 1777 |
| PLACE OF BIRTH | Abbeville |
| DATE OF DEATH | March 30, 1861 |