[Bonetools] Wave-like cracks in striations

[marinaevora at sapo.pt]

Hello Justin,

   By looking at your photo, they seem to be a microwave pattern.
   I find similar marks on upper paleolithic bone tool surfaces ( I do not
know if it is the same chronology of your tool). They result from the
attrition when you use a lithic tool, such as a scraper on the bone
surface. They are documented in an article published in 1894:

   D’ERRICO, F., GIACOBINI, G., PUECH, P.-F. (1984) – Varnish Replicas: A
New Method for the Study of Worked Bone Surfaces. /OSSA/, vol 9-11, pp.
29-51

   I do not have it in pdf, sorry...
    In my experimental work, I also found them, by using a retouched lithic
tool, other then a scraper.

   Hope it helps.

   Cheers,
   Marina

Quoting Justin Bradfield <jbradfield8 at gmail.com>:
> Dear WBRG    
> Can anyone help me identify the cause of these cracks that develop  
> in striations/cuts on bone (see attachment)?
>  
> I've noticed this feature in several archaeological tools but never  
> in my experimental replications. Could this be a natural property of  
> aged bone or could a specific contact material be the cause? I've  
> only ever noticed it in striations. 
>  
> Thanks in advance
>  
> Justin
>  
>  
>
>

 

    Marina Évora

P PLEASE CONSIDER THE IMPACT ON THE ENVIRONMENT BEFORE PRINTING THIS MESSAGE.
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