Statements (33)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
Radiometric dating method
|
| gptkbp:alternativeTo |
Carbon-14 dating
Rubidium-strontium dating Uranium-lead dating |
| gptkbp:analyzes |
Minerals containing potassium
|
| gptkbp:appliesTo |
Igneous rocks
Metamorphic rocks |
| gptkbp:basisFor |
Radioactive decay
|
| gptkbp:commonMinerals |
gptkb:Hornblende
Micas Feldspars |
| gptkbp:compatibleWith |
Sedimentary rocks
|
| gptkbp:developedBy |
1950s
|
| gptkbp:halfLifeMeasured |
Potassium-40
|
| gptkbp:halfLifeOfPotassium-40 |
1.25 billion years
|
| https://www.w3.org/2000/01/rdf-schema#label |
Potassium-argon dating
|
| gptkbp:inventedBy |
Aldrich and Nier
|
| gptkbp:limitation |
Cannot date rocks younger than 100,000 years
Requires closed system Susceptible to argon loss |
| gptkbp:measures |
Radiogenic argon-40
Ratio of potassium-40 to argon-40 |
| gptkbp:relatedTo |
Argon-argon dating
|
| gptkbp:requires |
No initial argon
Sample heating |
| gptkbp:usedFor |
gptkb:Geochronology
Dating minerals Dating volcanic rocks |
| gptkbp:usedIn |
gptkb:Archaeology
Earth sciences Paleontology |
| gptkbp:bfsParent |
gptkb:Argon–argon_dating_method
|
| gptkbp:bfsLayer |
7
|