ARCH 1030 Lecture Notes - Lecture 3: Skull Fracture, Volcanic Glass, Shanidar Cave
25 Feb 2017
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Absolute dating techniques: a dating technique that allowed the application of a calendrical year (or range of years) to an object (pg. Issues with sample collection and sample size: contamination, the size required to get a good date, accelerator mass, atmospheric variations of 14c: cultural and natural causes, differences in 14c absorption, calibration. Dendrochronology: using tree-ring sequences (master sequence, not useful if you do(cid:374)"t have a (cid:373)aste(cid:396) se(cid:395)ue(cid:374)ce. Potassium-argon dating (k/ar: measures decay of 40k to 40ar, dates volcanic rock, useful for dates from 100,000 years old onwards, not useful unless used on volcanic rock. Fission-track dating: used on volcanic rock, and measures ages from 1 million to 100,000 years ago. Thermoluminescence dating: used on rocks, minerals, or pottery/fired clay, certain electrons will emit light after being heated, from 300 to 100,000 years ago. Electron spin resonance (esr: applicable to teeth that are several thousand years old onwards, use on decayable material.
