Variations in OSL components from quartz from Japan sea sediments and the possibility of reconstructing provenance

摘要

OSL components from quartz from two sediment cores (MD01-2407 and KT94-15-PC5) from the Japan Sea are analysed, and the results are compared with the electron spin resonance (ESR) intensity of E_1'-center of quartz and the grain size of the detrital component of the sediments. The OSL components of quartz from Japanese granites and rhyolites of different ages are also analysed to investigate the relationship between the host rock age and the relative composition of OSL components in quartz. All these data are then used to examine the potential of reconstructing the provenance of the sediments. The results suggest that the ratio of the Fast component to the sum of Fast and Medium, F/(F + M) appears to increase with increasing host rock age. It is suggested that the F/(F + M) ratio in sedimentary quartz can be used as an indicator of source rock age.