Carbon dating news articles
Dendrochronology and radiocarbon dating have intertwined histories, she explains, with roots firmly planted at the UA.
An Isotope Called Carbon-14 But alas, pattern-matching in order to date when a tree was cut isn't always possible.
All of this dating information comes together to produce a chronological backdrop for studying past interactions between people and their environment.
"We can use the annual precision of tree rings in combination with carbon-14 to underpin some big questions in terms of the rise and fall of civilizations," says Pearson.
"It can get us to within 20, 50, 100 years or so of dating accuracy." On the scale of the universe, 20, 50 or even 100 years is, for all intents and purposes, nothing. Our galaxy, the Milky Way, is slightly younger, at 13.2 billion years old.
The Earth and our moon are both more than four-and-a-half billion years old.
That gives us a very big clue about how old the Earth is.