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Tree ring dating

2006 (approx.)

Detailed Description

Tamarisk stem cross-section cut 2.8 m below the ground surface showing how sediment deposition is dated using tree rings.  Following initial burial of 68 cm in 1969, ring-width decreased, vessel size increased, and annual transitions became less distinct. After a second burial by 41 cm in 1972, annual transitions became indistinguishable.


Public Domain.