Stontium Isotopes and Dendrochronology

Dendrochronology is using tree rings for dating. It's much more precise than radiocarbon dating. You can also get a sense for climatic conditions based on patterns of tree ring growth. If you sample rib collagen, regenerates much faster than tooth enamel. Like tooth enamel speaks to where you were in childhood. Red collagen is from much later in your life so you canget a sense for how a person has moved over the course of their lifetime.