*Sachintha Lakshan Senarathne¹、J.M.C.K Jayawardana¹、Rohana Chandrajith²、E.A.N.V Edirisinghe³ (1.Sabaragamuwa University of Sri Lanka、2.University of Peradeniya, Sri Lanka、3.Sri Lanka Atomic Energy Board)

*Rohana Chandrajith¹、Kaushalya Jayathunga¹ (1.Department of Geology, University of Peradeniya, Sri Lanka)

*Prashani Amoditha Kumari Ulapane¹、Chamindra L Vithana^1,2、Rohana Chandrajith¹、Leigh A Sullivan³、Jochen Bundschuh⁴、Atula Senaratne¹、Nick J Ward²、Nadia Toppler⁵ (1.Department of Geology, University of Peradeniya, Sri Lanka、2.Southern Cross Geoscience, Southern Cross University, Australia、3.University of Canberra, Australia、4.University of Southern Queensland, Australia、5.Environmental Analysis Laboratory, Southern Cross University, Australia)

*W.L.A.C.I. Weedagama ^1,2、N.W.B. Balasooriya²、Atula Senaratne²、Bhathiya Athurupana²、Rohana Chandrajith²、Nadeesha H. Koralegedara² (1.Post Graduate Institute of Science, University of Peradeniya, Peradeniya, Sri lanka、2.Department of Geology, University of Perdeniya, Peradeniya, Sri Lanka)

*Kasun Gayantha¹、Patrick Roberts²、Joyanto Routh³、Achim Brauer⁴、Rohana Chandrajith⁵、Oshan Wedage²、Florian Ott²、Gerd Gleixner¹ (1.Max Planck Institute for Biogeochemistry, Jena, Germany、2.Max Planck Institute for the Science of Human History, Jena, Germany、3.TEMA-M, Linköping University, Linköping, Sweden、4.GFZ, Potsdam, Germany、5.Department of Geology, University of Peradeniya, Sri Lanka)