[Bonetools] Wave-like cracks in striations

[Justin Bradfield]

Dear Marina and David

Many thanks for your helpful suggestions.

Marina, were the bones that you worked experimentally old or fresh? Perhaps
these wave-like marks are a combination of age and use with a lithic edge...

Regards

Justin

On 23 August 2015 at 13:15, David Constantine <dkconstantine at btinternet.com>
wrote:

> Hi Justin,
>
> I would say that they are cracks through age. They are starting from the
> cuts/striations as there will be many tiny weak spots along the length
> where small chips of bone have flaked away through manufacture or use.
> Similar to the way a porthole in a ship would start to crack at the corners
> if it they were angled rather than rounded.
>
> Regards,
>
> David Constantine
>
>
>
> On Sunday, 23 August 2015, 10:18, Justin Bradfield <jbradfield8 at gmail.com>
> wrote:
>
>
> 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
>
>
>
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