Meg, you could just say laser ablation ICPMS. Also, Precambrian rock in an area of generally Jurassic probably means it came from somewhere else. So
Posted by
mafic
Nov 13 '16, 02:18
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Travel or trade? Archaeologists like that jazz, right?
You do get rocks out of place for various reasons though (glaciers and rivers, usually), so it could just mean they found a weird boulder and made a bunch of tools out of it.
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