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Henri Coquand

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Henri Coquand (1813, in Aix-en-Provence – 1881, in Marseille) was a French geologist and paleontologist.

In 1841 he obtained his doctorate in sciences in Paris, and later served as professor of geology at the Universities of Besançon, Poitiers and Marseille.[1]

From his geological studies of southwestern France, he introduced the Upper Cretaceous stages: Coniacian, Santonian and Campanian (1857).[2] In 1871 he proposed the Berriasian stage of the Lower Cretaceous, named after Berrias, a town in the department of Ardèche.[3] He also conducted geological / paleontological research in Spain, Algeria and Morocco.[1]

In 1838 he founded the Muséum d'Aix in Aix-en-Provence.[4] From 1862 to 1870 he was a correspondent member of the Comité des travaux historiques et scientifiques, and from 1871 to 1881, he was a munincipal councillor in Marseille.[1]

The mineral "coquandite" commemorates his name; chemical formula= Sb6O8(SO4)•(H2O).[5]

Selected works

  • Traité des roches considérées au point de vue de leur origine et de leur composition, 1856 – Treatises on rocks considered from the point of view of their origins and compositions.
  • Description physique, géologique, paléontologique et minéralogique du département de la Charente, 1856 – Physical, geological, paleontological and mineralogical descriptions of the department of Charente.
  • Géologie et paléontologie de la région sud de la province de Constantine, 1862 – Geology and paleontology of the region south of Constantine Province.
  • Description géologique de la Province de Constantine, 1864 – Geological description of Constantine Province.
  • Monographie de l'étage aptien de l'Espagne, 1865 – Monograph on the Aptian stage of Spain.
  • Monographie du genre Ostrea. Terrain Crétacé, 1869 – Monograph on the genus Ostrea, Cretaceous terrain.[6]

References

  1. ^ a b c Prosopo Sociétés savantes
  2. ^ Upper Cretaceous Stratigraphy of the Western Gulf Coast Area of México by Emile A. Pessagno
  3. ^ A Geologic Time Scale 1989 by Walter Brian Harland
  4. ^ See Provence Natural History Museum of Aix-en-Provence
  5. ^ Webmineral.com Coquandite Mineral Data
  6. ^ OCLC Classify published works.
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