Thermoluminescence dating of ocean sediments www ge dating com

Luminescence on some thermoluminescence emission centres in Prescott, J.

Age determination of the loess formation of the Ancient ARCHAEOLOGY 11, 1—5.

quartz in granites, partial bleaching occurs up to 5mm depth under several hours of daylight exposures and almost complete beaching is achieved in the first 1 mm within about 1 min daylight exposure.

thermoluminescence dating of ocean sediments-75

We present the results of luminescence dating of sediments from two cores from the Cauvery Delta in south-east India.

Since all natural quartz OSL signals except one sample were in saturation, the elevated temperature post-IR IRSL protocol for K-feldspar was applied to establish a chronology.

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Internal dose rates of K-feldspar grains were calculated from the measured internal content of potassium, uranium, thorium and rubidium in the bulk of K-feldspar grains using solution ICP-OES and ICP-MS analysis.

A substantial scatter in single-aliquot values was observed which is most probably due to the effect of incomplete bleaching of fluvial sediments before burial.

The surface luminescence (thermoluminescence, TL or OSL) dating has been developed and further refined on various aspects of equivalent dose determination, complex radiation geometry, incomplete bleaching etc.

A historical review of the development including important applications, along with some methodological aspects are discussed.

On burial, surfaces are no longer exposed to daylight and accumulation of trapped electrons takes place till the excavation.

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