The dataset consists of 87Sr/86Sr isotope ratios of plant samples and soil leachates covering the major geologic regions of France. In addition to the isotope data it provides the spatial context for each sample, including background geology, field observations and soil descriptions. The dataset can be used to create Sr isoscapes for France, which can be applied in a wide range of fields including archaeology, ecology, soil, food, and forensic sciences.

This dataset has been edited/corrected on 2014-12-02. Please also see http://irhumdatabase.com.Outcrop type: Outcrop = A natural outcrop of rock, as far as we could identify. Not uncovered through recent human activity; Roadcut = Along a major road, rocks unearthed by human activity; Quarry = Outcrop created by human activity, often no longer in use; Field = A sample collected from a field or meadow; Turned over tree = A sample collected from or beneath a turned over tree that has excavated some fresh soil layers; Ground exposure = A sample collected from ~10-20 cm deep hole dug by us.Lithology (geologic background): The geologic background information is taken from the 1:1M BRGM geologic map (Chantraine et al., 2005).Details of the dataset, standards and reproducibility measurements can be found in the linked files.

Supplement to: Willmes, Malte; McMorrow, Linda; Kinsley, Les; Armstrong, R; Aubert, Maxime; Eggins, Stephen M; Falguères, Christophe; Maureille, Bruno; Moffat, Ian; Grün, R (2014): The IRHUM (Isotopic Reconstruction of Human Migration) database - bioavailable strontium isotope ratios for geochemical fingerprinting in France. Earth System Science Data, 6(1), 117-122