The lake sediment material IAEA-SL-1 was collected and prepared by Drs. J.C. Richie and C. Cooper (Us Department of Agriculture, Agiculture Research Service, USDA Sedimentation Laboratory, Oxford, Mississippi, USA) and donated to the Agency.

- No description available -

This samples was collected from Sibolga area West Coast if Northern Sumatra, Indonesia and donated by Indonesian Atomic Energy Commission.