Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
radiometric dating method
|
| gptkbp:alternativeTo |
gptkb:rubidium–strontium_dating
gptkb:uranium–lead_dating |
| gptkbp:basedOn |
radioactive decay
|
| gptkbp:canDate |
rocks older than 100,000 years
|
| gptkbp:cannotDate |
very young rocks
|
| gptkbp:developedBy |
1950s
|
| gptkbp:halfLife |
1.25 billion years
|
| https://www.w3.org/2000/01/rdf-schema#label |
potassium–argon dating
|
| gptkbp:measures |
ratio of potassium-40 to argon-40
|
| gptkbp:parent |
argon-40
potassium-40 |
| gptkbp:relatedTo |
gptkb:argon–argon_dating
|
| gptkbp:requires |
closed system
absence of argon loss |
| gptkbp:usedFor |
gptkb:geochronology
dating minerals dating rocks |
| gptkbp:usedIn |
archaeology
paleontology volcanology |
| gptkbp:bfsParent |
gptkb:40Ar
|
| gptkbp:bfsLayer |
6
|