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Samarium–neodymium dating

Samarium–neodymium dating is a radiometric dating method useful for determining the ages of rocks and meteorites, based on the alpha decay of the long-lived samarium isotope (147Sm) to the stable radiogenic neodymium isotope (143Nd). Neodymium isotope ratios together with samarium–neodymium ratios are used to provide information on the age and source of…

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Overview

Sm–Nd radiometric dating

Sm and Nd geochemistry

The CHUR model

The depleted-mantle model

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Samarium–neodymium dating

Nodes41
Edges40
Triples1
Avg. degree1.95
Density0.04878
Components1

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Samarium–neodymium dating

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Samarium–neodymium dating → radiometric dating method useful for determining the ages of rocks and meteorites

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Important terminology

nd sm isotope neodymium ratios chur rocks samarium evolution 143nd 144nd ratio ages crustal dating time formation formed depaolo radiogenic

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SubjectPredicateObjectConfidenceSrc
Samarium–neodymium datingis aradiometric dating method useful for determining the ages of rocks and meteorites0.90text

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