الوصفBulletin 19/4 Art. 11. CAPTIONS. 20. In June 1975 the Agency organized, in cooperation with the Gabon Government and the French Atomic Energy Commission, an International Symposium on the Oklo Phenomenon. The photo shows Director General, Dr. Sigvard Eklund, and Dr. Bertrand Goldschmidt, IAEA Governor from France (fourth and fifth from right), in the Oklo quarry, which had been a natural nuclear reactor 1800 million years ago.