Leonce Élie de Beaumont

See also: Élie de Beaumont

Jean-Baptiste Armand Louis Leonce Élie de Beaumont , born with Mézidon-Canon in the Apple-brandy the September 25th 1798 and died in Mézidon-Canon the September 21st 1874, is a geologist French.

Élie de Beaumont is born with Mézidon-Canon in the Calvados. It enters to the college Henry IV where it receives the first price of Mathématiques and of Physique. After being left major his promotion of the Polytechnic school in 1819, it goes to the school of the mines (1819 - 1820) where it shows a preference for the Géologie. In 1823, with Pierre-Armand Dufrénoy, it is selected by André Stitching of Villiers, the professor of geology of the school of the mines, to accompany it in England and Scotland in order to examine the mining and metallurgical establishments of these countries, and to study the principles used by George Greenough to draw up her geological map of England in order to create similar for the France. In 1835 he becomes professor at the school of the mines to replace Stitching of Villiers of which he was the assistant since 1827. He is chief engineer of the mines (1833), then general inspector (1847), and finally vice-president of the general advice of the mines (1861). The same year it receives the Légion of honor. Its increasing scientific reputation ensures its election with the to him Académie of Berlin, the Academy of Science and the Royal Society (like foreign member). In 1843, the Geological Society off London decrees the Médaille Wollaston to him. By French Presidential decree, it is made senator with life in 1852 and, with died of François Arago, he becomes perpetual secretary of the Academy of Science.

The name of Élie de Beaumont is known geologists for his theory of the formation of the Cordillère S initially proposed with the Academy of Science then described in three volumes Notice on the system of the mountains 1852. According to this theory, all the assembly lines parallel with same the large circle of the Earth have the same age, and between these large circles a relation of symmetry exists in the form of a pentagonal network . A talk and a criticism of its theory are made for its birthday in 1853 in front of Geological Society off London by William Hopkins. This theory is not accepted of all but it brought much to geology by the description of the structures of the mountains that Élie de Beaumont carries out to support its thesis.

However, the greatest service which renders Élie de Beaumont to science is probably its geological map of France of which he is the principal author. During this period it publishes a good number of memories important on the geology of this country. After having taken its retirement it continues to supervise the distribution of the charts detailed almost until its death. Its academic readings are published in two volumes (1845 - 1849) under the title of Leçons of Geology practices .

He had married the poetess Therese Marie Augusta Élie de Beaumont, (1806 - 1866).

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