> I coordinate an archaeological project at Panama Viejo, colonial
> settlement in the Pacific coasst of Panama. We recoverrred a precolumbian
> burial under a XVII century house floor.Before consolidation of bones, we
> need to take samples for isotopic analysis. Which are the specifications
> for proper bone samples? I'll appreciatte so much a soon answer.
> Beatriz Rovira
> Patronato Panama Viejo/Universidad de Panama
>
Dear Beatriz
There is no simple answer to your question! It depends on the
condition of the bones, and in tropical environments it can be pretty
difficult because hot/wet conditions are conducive to loss of
collagen and fungi & bacteria may invade the stronger skeletal elements
which have more cortical bone and might otherwise be considered as
fair game for isotope work.
I would suggest you (i) take a few rib fragments, and a small phalange
or two as sample material, (ii) use pieces that look like good bone and are
not powdery, (iii) consider analysis of the enamel of a 3rd molar
and (iv) if you haven't yet done so consult the person(s) who will
perform the isotope work.
good luck
 
Julia Lee-Thorp
Archaeometry Research Unit, Archaeology, University of Cape Town.