Jayawardana, D.T.Madusanka, R.M.T.D.Jayasinghe, R.M.N.P.K.Adikaram, A.M.N.M.Udagedara, D.T.2019-08-202019-08-202019-06Journal of the National Science Foundation of Sri Lanka,47(2):p.121-134https://dl.nsf.gov.lk/handle/1/24615enChemical weatheringPrimary gemSedimentSedimentary geochemistrySedimentary geochemistry of alluvial overburden in the primary gem deposit of Pelmadulla, Sri LankaArticle