Table 2. Mean composition of major oxides (wt. %), CaO/P2O5 ratioand trace elements (mgkg-1) in Sokoto phosphate rock samples

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