Archaeology dating metal

Until this century, relative dating was the only technique for identifying the age of a truly ancient object.

We had had signs of a settlement from the Middle Ages, but we had no clue there were Bronze Age finds, says K├╝ssner.He knew that his team of archaeologists was working atop a medieval site, but the bulldozer uncovered something even more surprisinga handful of dull green ax heads lying in the soil.For the rest of that day, the bulldozer was banished as the archaeologists meticulously dug the site by hand.Not only are most of them fragmentary, but burial alters their composition.The bits that remain are the materials that have best survived in the unique chemistry of a particular site.Carbon-14 is also passed onto the animals that eat those plants.


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