Thermoluminescent properties of the rock naturally annealed for thousands of years with flames firing from the earth's inner layers.

The gas leak in Chimaera near Çıralı, Antalya has been continuously active for thousands of years. It is also known to be the source of the first Olympic flame in the Hellenistic period. The sample taken from the Chimaere seepage annealed for thousands of years was determined to be calcite-magnesian (Ca,Mg)O 3 . In this study, thermoluminescence (TL) properties of calcite-magnesian annealed for thousands of years in the fire caused by methane gas were investigated in terms of particle size, dose response, heating rate, and fading experiments. It has a clear TL glow curve with two distinct peaks positioned at 160 o C and 330 o C and its shape is not affected by the variation of applied dose and repeat of experiment. There is a wide linear releationship between TL output and applied dose up to 614Gy. Although the positions of the TL peaks are stable with the cycle of measurement, a poor reusability was observed in terms of the area under the TL glow curve and peak intensity.