Figure 2. Location of phosphate deposit prospects in Sokoto State (GSN, 1986)

From

Major Oxides and Trace Elements Composition of Phosphate Bearing Sedimentary Rocks from Sokoto, Northwest Nigeria

Kolo Matthew Tikpangi, Salihu Simon Olonkwoh

American Journal of Environmental Protection. 2015, 3(4), 106-111 doi:10.12691/env-3-4-1