Linked from

The 25 pages that link to K–Ar dating, each with the reason it gives.

• PotassiumRelated: Radioactive potassium provides a clock for dating volcanic rocks and geological events.

• Homo erectusRelated: It has helped date volcanic layers associated with important Homo erectus fossils.

• Olduvai GorgeRelated: It helped establish absolute ages for Olduvai’s volcanic layers and associated finds.

• Electron captureRelated: Potassium-40 decays to argon-40 partly through electron capture.

• Mary LeakeyRelated: Dating volcanic layers helped establish ages for Olduvai’s fossil-bearing deposits.

• ArgonRelated: Radioactive decay within rocks produces argon that can record their formation age.

• OrthoclaseRelated: Potassium-bearing feldspar can be analyzed, though argon loss and alteration complicate dating.

• Middle AwashRelated: Volcanic rocks in the region provide material for dating fossil-bearing deposits.

• BiotiteRelated: Biotite can retain argon after cooling, providing a record of its thermal history.

• AluniteRelated: Alunite has been dated to constrain the timing of mineralizing fluids.