Henri Coquand Explained
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 a professor of geology at the University 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; its chemical formula is 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]
Notes and References
- http://cths.fr/an/prosopo.php?id=105786 Prosopo
- https://books.google.com/books?id=a5FMIiiqdu8C&dq=Coquand++Santonian+Campanian+Coniacian&pg=PA25 Upper Cretaceous Stratigraphy of the Western Gulf Coast Area of México
- https://books.google.com/books?id=xbKJV6LSeggC&dq=Coquand++Berriasian&pg=PA57 A Geologic Time Scale 1989
- https://www.google.com/webhp?sourceid=chrome-instant&rlz=1C1_____enUS441US441&ion=1&espv=2&ie=UTF-8#q=%22Henri+Coquand%22+%22Aix-en-Provence%22 See Provence
- http://webmineral.com/data/Coquandite.shtml#.VVaNYflViko Webmineral.com
- http://classify.oclc.org/classify2/ClassifyDemo?search-author-txt=%22Coquand%2C+H.+%28Henri%29%2C+1813-1881%22 OCLC Classify
