Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
radiometric dating method
|
| gptkbp:advantage |
gptkb:potassium–argon_dating
|
| gptkbp:canDate |
samples as old as billions of years
samples as young as a few thousand years |
| gptkbp:developedBy |
gptkb:potassium–argon_dating
|
| gptkbp:enables |
step-heating experiments
|
| https://www.w3.org/2000/01/rdf-schema#label |
argon–argon dating
|
| gptkbp:inventedBy |
1960s
|
| gptkbp:measures |
ratio of 40Ar to 39Ar
|
| gptkbp:provides |
absolute ages
|
| gptkbp:requires |
mass spectrometry
neutron irradiation |
| gptkbp:usedBy |
archaeologists
geologists |
| gptkbp:usedFor |
gptkb:geochronology
thermochronology |
| gptkbp:usedToDate |
gptkb:volcanic_activity
metamorphic rocks igneous rocks |
| gptkbp:uses |
isotopes of argon
isotopes of potassium |
| gptkbp:bfsParent |
gptkb:40Ar
|
| gptkbp:bfsLayer |
6
|