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Transcript
How do bioarchaeologists use
biochemistry to study diet in the past?
What is bioarchaeology?
The scientific study of human remains
(primarily skeletal) from archaeological
sites.
How do bioarchaeologists study diet?
1) Oral Health
2) Nutritional Disease
3) Stable Isotope Analysis
What are stable
isotopes?
Two or more forms of an
element that have the same
number of protons but different
numbers of neutrons, leading to
different atomic mass.
Two types: radioactive and
stable
Stable isotopes do NOT
breakdown over time.
Stable isotope ratios
Compares the amount of one isotope to another.
Stable isotope ratios are reported as delta (𝞭) values
in parts per mil (‰).
Where do stable isotopes come from?
How do stable
isotopes enter
our bodies?
Bone remodeling and incorporating
isotopes into bone.
Stable Isotopes
and Diet
Example: