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And how do scientists go about solving the riddle of the ages?

The dating techniques used are as different as the relics to which they are applied.

The methods I utilize involve electron microprobe (EMP), secondary ion mass spectrometry (SIMS), nano SIMS, and inductively coupled plasma mass spectrometry (ICP-MS).

My research focuses on understanding the timescales of magmatic processes and the sources of crystal diversity in magmatic systems.

Nothing is more apparent at Chaco Canyon than the passage of time.

The crumbling walls of the Great Houses stand as a patent reminder that this desolate canyon once bustled with human activity.

After one half-life has elapsed, one half of the atoms of the substance in question will have decayed.

Many radioactive substances decay from one nuclide into a final, stable decay product (or "daughter") through a series of steps known as a decay chain.

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