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ESR dating of quartz from quaternary sediments: First attempt

Authors :: Christophe Falguères
Yusuke Yokoyama
J.P. Quaegebeur
Centre des Faibles Radioactivités
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)
Centre d'Etude de Saclay
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
L' homme préhistorique : son évolution, son milieu, ses activités
Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)
Département de Physico-Chimie (DESICP)
Source :: International Journal Of Radiation Applications And Instrumentation. Part D, Nuclear Tracks And Radiation Measurements, International Journal Of Radiation Applications And Instrumentation. Part D, Nuclear Tracks And Radiation Measurements, 1985, 10 (4-6), pp.921-928. ⟨10.1016/0735-245X(85)90109-7⟩, Nuclear Tracks And Radiation Measurements, Nuclear Tracks And Radiation Measurements, 1985, 10 (4-6), pp.921-928. ⟨10.1016/0735-245X(85)90109-7⟩, International Journal Of Radiation Applications And Instrumentation. Part D, Nuclear Tracks And Radiation Measurements, Elsevier, 1985, 10 (4-6), pp.921-928. ⟨10.1016/0735-245X(85)90109-7⟩
Publication Year :: 1985
Publisher :: Elsevier BV, 1985.
Abstract: International audience; Wind-blown sand from Arago cave at Tautavel and beach sand from Terra Amata at Nice are studied for the dating by a quartz large grain technique using electron spin resonance (ESR). The signal intensity of AI center increased with artificial y-ray dose, and total equivalent doses of 2030 + 109 Gy and 1795 + 103 Gy are obtained for Arago and Terra Amata samples respectively. A preliminary UV experiment shows that the AI center signal initially decreased under UV irradiation but approached a residual strength. 'Zero age" quartz samples taken from present beach sand near Terra Amata show a signal intensity corresponding to 18% of the saturated intensity of Terra Amata sample (this same proportion is 30% for the 'zero age' Arago samples). After the subtraction of this residual strength, paleodoses of 1010 + 149 Gy and 750 + 147 Gy and ages of 430 + 85 kyr and 380 4-80 kyr are deduced for Arago cave and Terra Amata, respectively. These ages are in good agreement with those estimated from the faunal studies of these sites.