Chronometric dating techniques in archaeology

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The atoms of crystalline solids, such as pottery and rock, can be altered by this radiation.Specifically, the electrons of quartz, feldspar, diamond, or calcite crystals can become displaced from their normal positions in atoms and trapped in imperfections in the crystal lattice of the clay molecules.

Progressively through time, the carbon-14 atoms decay and once again become nitrogen-14.

As a result, all of the argon-40 in a volcanic rock sample is assumed to date from that time.

When a fossil is sandwiched between two such volcanic deposits, their potassium-argon dates provide a minimum and maximum age.

, which was known for extremely complex textiles, the Nazca produced an array of crafts and technologies such as ceramics, textiles, and geoglyphs—specifically the Nazca Lines.

They also built an impressive system of underground aqueducts, known as puquios, that still function today.

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