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If analysis of fresh breaks will motivate excavators to an improved
handling of bones, we earned something here.
Few lines on my research of the fresh breaks on bones: I worked on bone
assemblage from a site that was excavated more than 30 years ago. I
think it can be said that archaeological excavation is the final
taphononic process that affects bones and it should be examined also.
Throughout bone identification procedure, I also recorded fresh breaks
on bones. I didn't count the number of breaks on a single fragment but
only whether it has a fresh break or not. 1513 of 4274 identified bones
(35%) were found with fresh breaks. I analyzed the fresh breaks
according to skeletal parts. Surprisingly, I found a positive
correlation (statistically significant) between the frequency of fresh
breaks and bone density (Binford's index). On the other hand I found a
negative correlation between fresh breaks and bone density of small and
compact bones (which is not surprising). I hope that was helpful.
I will appreciate any Comparative data.

Thank you,
Aharon Sasson
Department of Archaeology
Tel-Aviv University
Israel