When did Ernest Rutherford publish his paper on radioactive decay as a clock?
Ernest Rutherford published the paper in 1906. He observed that certain atoms spontaneously transform into different atoms at a predictable rate.
Questions about Radiometric dating
Short answers, pulled from the story.
What is the half-life of carbon-14 used for dating organic material?
Carbon-14 exhibits a half-life of 5,730 years. This limits its effective range to approximately 60,000 years.
How old are the Amitsoq gneisses from western Greenland according to uranium-lead dating?
The Amitsoq gneisses yielded an age of 3.60 ± 0.05 billion years through uranium-lead dating. Lead-lead dating produced a consistent result of 3.56 ± 0.10 billion years for the same rock body.
Which minerals have closure temperatures around 350 degrees Celsius and 500 degrees Celsius respectively?
Mica typically closes around 350 degrees Celsius while hornblende closes near 500 degrees Celsius. Different minerals possess distinct closure temperatures ranging from roughly 200 degrees Celsius to over 900 degrees Celsius.
When were above-ground nuclear bomb tests conducted that increased atmospheric carbon-14 significantly?
Above-ground nuclear bomb tests were conducted into the early 1960s. These events increased atmospheric carbon-14 significantly compared to previous levels.