Strontium isotope map re-examination casts doubt on bronze age migration theories
New findings could change the way we think about prehistoric peoples
Researchers in Denmark have discovered that the modern-day application of agricultural lime to the soil can affect the ratio of different strontium isotopes in surface waters, masking the isotopic signature of the underlying geology of any given area. This has significant implications for the study of prehistoric peoples and artefacts, which are based on strontium reference maps that do not consider this factor.