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UCLA - Visual archaeology

UCLA Visual archaeology final quiz questions 16F-ARCHEOL30-1

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Time-of-Flight (ToF) mass analyzers are based upon:

(33.33 pt') - question #33

	the observation that smaller and thus lighter molecules can be made to y in a smaller circle than larger molecules.
	the fact that ions with a higher mass will respond less to electromagnetic acceleration than ions with a smaller mass.
	the phenomenon that heavier isotopes will have a shorter half-life than lighter isotopes

In their discussion of their results of dating a clay brick from the Whitefriars Priory Site in Canterbury, how do Wilson et al. (2010) explain the measured age of only 66 years?

(33.33 pt') - question #32

	The surfaces of the brick were vitried hampering rehydroxylation and accurate dating.
	Although originally constructed by Sir Christopher Wren in the 1690s, the building was repaired and altered onnumerous occasions.
	The site was subject to incendiary bombing in May or June 1942.

What does Rogers (2008) mention as the major source for variation in the hydration rate of obsidian (volcanic glass)?

(33.33 pt') - question #16

	The humidity of the environment.
	The hydroxyl ions (OH ) attached to the obsidian matrix.
	The age of the obsidian.