ANTH 240 Lecture Notes - Lecture 5: Dendrochronology, Radiometric Dating, Hohokam
15 Feb 2017
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Relative dating: a is older than b. Stratigraphy: law of association (horizontal association = contemporaneity, Law of superposition (vertical sequence, oldest on the bottom, youngest on the top) Not very many blades before 40,000 years ago. This method is a good way to take your first step into finding the actual date of something. Used pottery from different periods in the southern united states to figure out a time period. Things change style and shape over a period of time as the style changes (think of cars or houses) Look at how grave stones have changed over time. Since grave stones all have sates we can check how they change over timer very easily. Another example for how this comes in handy is mesopotamian pottery (cid:498)absolute(cid:499) dating. What are limitations and problems that must be considered? (cid:498)absolute(cid:499) dating methods. Works better closer to the poles then the equator. Uses changes in temperature over the years.
