Statements (26)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
radiometric dating method
|
| gptkbp:advantage |
high precision
can cross-check results |
| gptkbp:basedOn |
radioactive decay
|
| gptkbp:commonIn |
zircon crystals
|
| gptkbp:developedBy |
early 20th century
|
| gptkbp:halfLifeUranium235 |
704 million years
|
| gptkbp:halfLifeUranium238 |
4.47 billion years
|
| https://www.w3.org/2000/01/rdf-schema#label |
uranium–lead dating
|
| gptkbp:introducedIn |
gptkb:Bertram_Boltwood
|
| gptkbp:limitation |
lead loss can affect accuracy
|
| gptkbp:measuresDecayTo |
gptkb:lead-206
lead-207 |
| gptkbp:providesAgeRange |
1 million to over 4.5 billion years
|
| gptkbp:relatedTo |
concordia diagram
discordia line |
| gptkbp:usedFor |
gptkb:geochronology
dating geological materials |
| gptkbp:usedIn |
Earth sciences
archaeology planetary science |
| gptkbp:usesIsotopes |
gptkb:uranium-238
uranium-235 |
| gptkbp:bfsParent |
gptkb:potassium–argon_dating
gptkb:Bertram_Boltwood |
| gptkbp:bfsLayer |
7
|