Radiometric dating youtube

Loss (leakage) of lead from the sample will result in a discrepancy in the ages determined by each decay scheme.

This effect is referred to as discordance and is demonstrated in Figure 1.

Another technological development is the (Inductively Coupled Plasma Mass Spectrometer), which is able to provide the isotopic age of the minerals zircon, titanite, rutile, and monazite.Zircon crystals with prolonged and complex histories can thus contain zones of dramatically different ages (usually, with the oldest and youngest zones forming the core and rim, respectively, of the crystal), and thus are said to demonstrate inherited characteristics.Unraveling such complications (which, depending on their maximum lead-retention temperature, can also exist within other minerals) generally requires in situ micro-beam analysis via, say, ion microprobe (SIMS) or laser ICP-MS.The dating method is usually performed on the mineral zircon.The mineral incorporates uranium and thorium atoms into its crystal structure, but strongly rejects lead.

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