Orville A. Derby

The Serra Do Espinhaço, Brazil

Orville A. Derby · The Journal of Geology · 1906 · 60 citations

Social Sciences, Area Studies, Regional Studies +1

On Nepheline-Rocks in Brazil, with Special Reference to the Association of Phonolite and Foyaite

Orville A. Derby · Quarterly Journal of the Geological Society · 1887 · 25 citations

Natural Sciences, Earth Sciences, Geology +8

The Artificial Mounds of the Island of Marajo, Brazil

Orville A. Derby · The American Naturalist · 1879 · 22 citations

Natural Sciences, Earth Sciences, Geology +6

The Amazonian Upper Carboniferous Fauna

Orville A. Derby · The Journal of Geology · 1894 · 15 citations

Natural Sciences, Ecology, Paleobiology +7

On the magnetite ore districts of Jacupiranga and Ipanema, Sao Paulo, Brazil

Orville A. Derby · American Journal of Science · 1891 · 15 citations · Full text

Natural Sciences, Earth Sciences, Geology +15