00485nas a2200073   4500008003900000245026000039210006900299856004300368       1927                          d00aRAEBURN, C., BAIN, A.D.N. and RUSS, W. 1927. The tinfields of Zaria and Kano Provinces. Bulletin, Geological Survey of Nigeria, 11: 1-71.TURNER, D.C. 1979. Nigeria: the northern ring complexes. Geological map, scale 1:250,000. St Andrews University Younge0 aRAEBURN C BAIN ADN and RUSS W 1927 The tinfields of Zaria and Ka  uhttps://alkcarb.myrocks.info/node/7368