Achille Ernest Oscar Joseph Delesse, Date of Birth, Place of Birth, Date of Death

    

Achille Ernest Oscar Joseph Delesse

French geologist and mineralogist

Date of Birth: 03-Feb-1817

Place of Birth: Metz, Grand Est, France

Date of Death: 24-Mar-1881

Profession: geologist, university teacher, mineralogist

Nationality: France

Zodiac Sign: Aquarius


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About Achille Ernest Oscar Joseph Delesse

  • Achille Ernest Oscar Joseph Delesse (3 February 1817 – 24 March 1881) was a French geologist and mineralogist. He was born at Metz.
  • At the age of twenty he entered the École Polytechnique, and subsequently passed through the Ecole des Mines.
  • In 1845, he was appointed to the chair of mineralogy and geology at Besançon; in 1850, to the chair of geology at the Sorbonne in Paris; and in 1864, professor of agriculture at the Ecole des Mines.
  • In 1878, he became inspector-general of mines.In early years as ingĂ©nieur des mines he investigated and described various new minerals; he proceeded afterward to the study of rocks, devising new methods for their determination, and giving particular descriptions of melaphyre, arkose, porphyry, syenite, and others.
  • The igneous rocks of the Vosges, and those of the Alps, Corsica, etc., and the subject of metamorphism occupied his attention.
  • He also prepared in 1858 geological and hydrological maps of Paris, with reference to the underground water, similar maps of the dĂ©partements of the Seine and Seine-et-Marne, and an agronomic map of the Seine-et-Marne (1880), in which he showed the relation that exists between the physical and chemical characters of the soil and the geological structure.His annual Revue des progrès de gĂ©ologie, undertaken with the assistance (1860–1865) of Auguste Laugel and afterwards (1865–1878) of Albert de Lapparent, was carried on from 1860 to 1880.
  • His observations on the lithology of the deposits accumulated beneath the sea were of special interest and importance.
  • His separate publications were: Recherches sur l'origine des roches (Paris, 1865); Étude sur le mĂ©tamorphisme des roches (1869), Lithologie des mers de France et des mers principales du globe (2 vols.
  • and atlas, 1871).He died in Paris on 24 March 1881.

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