Research Papers

  • Udawatte, C.P., Abeyweera, S., Perera, L., Illangasinghe, S., Weerasooriya, C., Sutthirat, C., Jayasinghe, N., Dharmaratne, T. And Diyabalanage, S., Optimized conditions for cobalt diffusion in Sri Lankan colorless topaz and coloration mechanism elucidation through spectro-chemical investigation. Journal of Metals, Materials and Minerals, 33(1), pp. 73-81.

 

  • Jayawardana, D.T., Madusanka, R.M.T.D., Jayasinghe, R.M.N.P.K., Adikaram, A.M.N.M. and Udagedara, D.T. 2019. Sedimentary geochemistry of alluvial overburden in the primary gem deposit of Pelmadulla, Sri Lanka. Journal of the National Science Foundation of Sri Lanka, 47(2), pp 221–234. DOI: http://doi.org/10.4038/jnsfsr.v47i2.9164.
  • Jayasinghe, R.M.N.P.K. and Pitawala, H.M.T.G.A. 2022. Geomorphological and drainage morphometrical relationship of gem potential alluvial deposits in upper Kalu Ganga basin, Sri Lanka: A remote sensing and GIS based approach. Journal of Geological Society of Sri Lanka, 22 (2), pp. 15-26.

 

  • Rifkhan, M.N.M., Wewegedara W.G.C.N., Jayasinghe R.M.N.P.K., Dharmaratne T.S., Malaviarachchi M.A.S.P.K, Chndrajith Rohana. 2022. Reddish-Brown Zircons of Sri Lanka; A Detailed Study and Development of a New Technique for Yellow to Golden Yellow Colour Enhancement. Journal of Geological Society of Sri Lanka, 22 (2), pp. 39-45.

 

  • Kuruppu, K.A.D.D.N., Hewathilake, H.S., Illangasinghe, I.K.M.S.C.K., Ranasinghe, R.A.N.C., Jayasinghe, N. and Dharmaratne, T.S. 2020. Radioactivity survey on Godakawela gem field in Sri Lanka; to identify the origin of the unknown radioactive mineral. Journal of the Geological Society of Sri Lanka, 21(1), pp 57-65.

 

  • Jayamali, M.K.C., Bandara, W.M.M.P.E., Gunatilake, J., Francis, P., Jayasinghe, R.M.N.P.K. and Dharmasiri, R.M.S. 2017. GIS Based Analysis for Gem Potential Mapping -A Case Study from Medagama, Moneragala District, Sri Lanka. Journal of Geological Society of Sri Lanka, 18, pp 115-127.

Book Chapters

Jayasinghe, R.M.N.P.K. 2024. Sedimentology and Geochemistry of Kalu River Gem-Bearing Sediments in Sri Lanka: Implication for Provenance and Paleoclimate, Himanshu Pablications, India. pp. 346-369.