Orville Adelbert Derby, US-born Brazilian geoscientist
and geographer (Kelloggsville, Cayuga County, New York State 23 July 1851 – Rio
de Janeiro 27 November 1915) Authored 173 scientific works dealing about geology,
mineralogy, palaeontology and archaeology
Gained international recognition for his
studies on nepheline rocks associated to phonolite and foyaite and his petrographical researches Laid the basis of genetical association between
a group of filonian and eruptive rocks Proposed the notion of consanguinity of
eruptive rocks (1885) Identified
that nepheline rocks were from the same magma with distinct cooling velocities DESCRIBED/NAMED
Queluzite (protore) 1908 Caldasite (1919) Jacupiranguite (1891) Tinguaite Marahuite (1907) METHODOLOGY Developed a new method for determination of monazite Imagined a process for detaching fossils from limestone
matrix employing hydrochloric acid solution
HONORS Wollaston Medal (1892) Derbyia Waagen 1884 (Fossil Brachiopoda) Derbyella Grabau 1931 (Fossil Brachiopoda) Derbyina Clarke 1931 (Fossil Brachiopoda) Derbyaeconcha Likharev 1934 (Fossil Brachiopoda) Derbyoides Dunbar & Condra 1932 (Fossil Brachiopoda) Orvillia White 1887 (Fossil Mollusca) Derbyella White 1906 (Fossil Plantae) Derbylite Moore & Araki 1976 (mineral) Orvillite Lee 1919 (a zircon variety) |
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