CAS AR 101 Chapter Notes - Chapter 4: Radiocarbon Dating, Absolute Dating, Dendrochronology
11 Feb 2016
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Absolute dating: 3 most imp: calendars & historical chronologies, tree-ring dating, radiocarbon dating. Calendar & historical chronologies: chronological system requires careful reconstruction, and any list of rulers or kings needs to be reasonable complete (archaeology. Essentials: the list has to be linked with our own calendar (archaeology. Resonance (esr) enables trapped electrons w/in bone & shell to be measured w/out the heating that thermo luminescence (tl) requires. Other absolute dating methods: thermo luminescence dating (tl, dates crystalline materials (minerals, fired (usually) ceramics, burnt clay, stone, or soil, date minerals exposed to light (archaeology essentials, optically stimulated luminescence (osl) (in the lab, optical dating. Produced by directing light of a visible wavelength onto the sample resultant luminescence is measured (archaeology. Essentials: esr, geomagnetic reversals & archaeomagnetic dating (aka paleo. Magnetic dating) based on fact that changes in earth"s magnetic field over time can be recorded in such materials as baked clay structures (e. g. ovens, kilns, & hearths)
