Abstract
The corrected TL ages of oceanic carbonate sediments from DSDP sites 216 and 217, in the northern Indian Ocean are found to be grossly underestimated when compared with their respective paleontologic ages. The only exception are the samples of Pleistocene age. Reversals in the TL age at specific depths are coincident with diagenetic reversals noticed at those depths. A correlation has also been seen between the TL age and sedimentation rate, the latter influencing the pore water content. A lower rate of sedimentation results in a more advanced diagenesis, increased cementation and enhanced TL ages. It is concluded that the TL ages of oceanic carbonate sediments, reflect the last trap situation and thus are a measure of the most recent diagenetic event experienced by the sediment rather than its true age of deposition.
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