Some oxygen isotope evidence for Africans in Britain, c. 1100 BC–AD 800---new post :) http://www.caitlingreen.org/2015/10/oxygen-isotope-evidence.html …pic.twitter.com/fUiIFCbj9r
History, archaeology, place-names & early lit. Main research on post-Roman Britain & Anglo-Saxon England; also long-distance trade, migration & contact.
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Some oxygen isotope evidence for Africans in Britain, c. 1100 BC–AD 800---new post :) http://www.caitlingreen.org/2015/10/oxygen-isotope-evidence.html …pic.twitter.com/fUiIFCbj9r
At Roman Gloucester, 28-33% of those tested had oxygen isotope results suggestive of origins in S. Iberia/N. Africa: http://www.sciencedirect.com/science/article/pii/S0305440309003288 …
@caitlinrgreen In other words, how does science know that the isotopes found in bone were present when the person was alive?
@STORI3D_PAST Derives from dental enamel which is largely resistant to diagenetic change & recent meta-analyses support this, w/ ranges >
@STORI3D_PAST > from teeth showing good link to levels in environmental water :)
@caitlinrgreen Brilliant! Still amazes me how much migration there was, esp given that even today many never travel over 50 miles from home.
@STORI3D_PAST 2012 meta-analysis indicates c.4% of those tested so far from Britain have values poss indicative of long-distance movement..!
@STORI3D_PAST (that's only those results indicative of a southern/warmer origin; yet more suggest northern/eastern/colder origin than UK!)
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