Pananggalan Radiométrik
Pananggalan radiométrik (Radiometric dating) nyaéta hiji téhnik nu dipaké pikeun nangtukeun umur bahan dumasar kana pangaweruh laju uray isotop alami jeung kandunganana kiwari.
Aya sababaraha métode nu akurasina, béaya, jeung skala waktuna béda-béda.
Tipe-tipe pananggalan radiométrik
- pananggalan radiokarbon
- rubidium-strontium
- samarium-neodymium
- kalium-argon
- argon-argon
- uranium-thorium
- optically stimulated luminescence dating
- uranium-timbal
Dasar-dasar pananggalan radiométrik
Watesan téhnik ieu
Téhnik pananggalan modérn
Téhnik pananggalan jangka-pondok
Tempo ogé
- umur Marcapada
- exponential decay
- umur satengah
- radioactive decay
- radioaktivitas
- pananggalan radiokarbon
- pananggalan térmoluminesens
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