Luminescence, Coastal Sediments
Definition
Luminescence. Light emitted by an irradiated semiconductor during exposure to light or heat. The light intensity emitted by the semiconductor is a function of the absorbed dose.
Luminescence dating technique. Dosimetric technique which determines the amount of absorbed dose in a dosimeter (semiconductor) such as quartz and feldspar and the rate of dose to which the dosimeter was exposed before the moment of sampling.
Coastal sediments. Deposits in the zone near where land and sea meet.
Introduction
Luminescence dating technique relies on the absorption of radiation dose in siliciclastic minerals such as quartz and feldspar. When the grains of these minerals are exposed to daylight for a sufficient length of time during sediment transport and deposition, the luminescence clock of the dosimeter is reset to zero. Besides sufficient resetting, the accuracy of a luminescence age of a coastal deposit depends upon sediment composition, the nature of wetting and drying, and the...
Keywords
Dose Rate Suspended Sediment Concentration Coastal Sediment Coastal Deposit Luminescence DateBibliography
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