J. D. FALCONER AND HIS GEOMORPHOLOGICAL INTERPRETATIONS IN NORTHERN NIGERIA.

The article discusses the geology of northern Nigeria and geologic research conducted by scientist John Downie Falconer. Falconer's analysis of tin deposits included a description of the landscape as a palimpsest surface and an account of etch plains and inselberg formations. The author suggests that steep-sided bornhardts survived multiple phases of etching. The article explores Falconer's contribution to geomorphological theory. Other topics include mantle-controlled planation, basal steepening, episodic exposure, and increased relief amplitude.