Researchers Discover Origins of Early Colonizers Through Strontium Isotope

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A team of archaeologists from Flinders University has recently uncovered the origins of early colonists in South Australia using strontium isotope analysis. They used this technique with the teeth they excavated from unmarked graves on the grounds of the Anglican Parish of St. Mary’s Church graves.

Using new archaeological techniques

The study aimed to discover the origins of the people during the colonial migration before 1880. Associate Professor Ian Moffat notes that their research proved the significance of isotope methods and stressed the importance of birth-origin tests in case studies. He also revealed the use of these techniques in hypothesis testing, saying that “strontium isotope methods can be used to test a specific hypothesis rather than just being used to confirm a general location.”

The researchers have analyzed the samples of the teeth’s dentine and enamel using strontium isotope and found that the early colonizers originated from Britain and Ireland, with a few others hailing from other countries. employs published baseline data to infer the origins of the people from the cemetery.

According to lead researcher Christine Adams, a sample size of 13 individuals was tested, with four teeth taken from each, making it a total of 52 teeth samples. Half of the samples used the strontium isotope method to check for enamel and dentine. Moreover, there’s potential for complexity in comparing tooth isotope values and baseline mapping. This is because of breastfeeding, post-burial diagenesis, and high seafood diet. All these greatly affect the research results.

This research was conducted as a Master of Archaeology and Cultural Heritage Management program thesis component. It received support from the EHL grant and Australian Research Council grants. The use of strontium isotopes to test the origins of the early people who came into Australia can be vital to finding out their living conditions and what they used to consume which led to the evolution of how people are living today.

Photo credit: The feature image is symbolic and was taken by Domenico Baiano.
Source: Taylor and Francis Online

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Stella Maris Bangis
Stella Maris Bangis
Tech Journalist
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