@article {,
	title = {Where in the World does Obsidian Hydration Dating Work?},
	journal = {American Antiquity},
	volume = {61},
	number = {1},
	year = {1996},
	note = {Obsidian hydration works better close to the equator because it provides a stable hydration environment due to a small temperature amplitude wave during the day. Also, a thermal cell used during excavation can help to calibrate temperatures.},
	pages = {136-148},
	author = {Ridings, Rosanna}
}