The isotope cannot pinpoint a specific location.

It can only characterize the climate signature.

The strontium isotope ratios in his teeth, however, tell a slightly different story.

Strontium ratios reflect the geology of the local environment, incorporated into the food chain through soil and water.

The strontium values in Conquest Man’s teeth were “more compatible with the area closer to Barton upon Humber,” suggesting some connection to the local geology.

These two results are not contradictory in a binary sense, but they are in tension.