Great eye-catching poster and figures! I appreciate you had difficulties from the pandemic and that you list the limitations of your study. However, I wondered what type of bones you used and how long they were burned for?
Also, would the alteration from burning influence the interpretation of the mark (i.e. can you still tell which knife was used post-burning)?
Thank you! I used four sheep ribs, one pig humerus and one pig metatarsal (the butcher's just gave me a selection of what they had available). Set 1 was two ribs and the humerus, Set 2 was the other two ribs and the metatarsal.
Set 1 burned for 67 minutes and Set 2 for 46 minutes. They were both originally supposed to burn for 60 minutes each, Set 1 at 600°C and Set 2 at 900°C, but issues with the furnace meant Set 1 burnt at temps between 381°C - 605°C, and then Set 2 at temps between 600°C - 640°C. I didn't get to use the furnace until the day uni closed because of Covid so Set 2's time was cut short.
I personally could tell the difference post-burning as the marks created by the serrated blade were generally wider than those created by the non-serrated blade. Some of the bones/marks still had their numbers visible after burning too, plus I had stared at the bones so much I knew exactly which mark was which, so I was a little biased!
Thanks for the additional information. Really interesting study!
This is a really cool poster - well done!
When you refer to the "surviving" cut marks do you mean those still visible following burning? Also, did you happen to make note of which blade type had the most/least kerf marks that were identifiable following burning and fragmentation?
Thank you! By 'surviving', I mean those that survived burning and then fragmentation. 49 of them were completely destroyed.
I sadly didn't get a chance to analyse any cut mark characteristics as I had to completely gut my project down so that it was manageable to do any lab work before uni closed and I lost access to the equipment (and couldn't use the furnace until the day it closed) but it is definitely something I want to look at in the future!
Thanks for your response! I totally understand having to make quick changes given the state of everything! I agree it would be something interesting to look at in the future as well. I'd love to stay updated if you continue this research. :)
This is really interesting research! I really like the design of your poster too.
Very interesting study, nicely presented!
How do you explane that although heat causes bone shrinkage and desortion, the measurments of the cut marks are almost unaffected?