Dahanayake, K.Hapugoda, S.Dissanayake, C.B.2016-07-052016-07-051987UNESCO/IUGS International Geological Correlation Programme Project 236 Precambrian Events in the Gondwana Fragments:p.21https://dl-ifs.nsf.gov.lk/handle/1/1760Banded iron formations in the precambrian of Sri LankaA