GEOLOGY OF BIRNIN KEBBI AND ITS ENVIRONS, PART OF SHEET 49 NORTHWESTERN NIGERIA  

2019-09-01
The geological mapping of a 40 km2 area around Birnin Kebbi, part of Sokoto Basin Northwestern Nigeria between latitudes N120 25`45`` to 40 29ʹ 30ʺ and longitudes E40 07`30`` to ...