Relative and absolute age dating

15-Mar-2015 05:42

All radiometric dating methods measure isotopes in some way.

Most directly measure the amount of isotopes in rocks, using a mass spectrometer.

Each isotope is identified with what is called a ‘mass number’.

When ‘parent’ uranium-238 decays, for example, it produces subatomic particles, energy and ‘daughter’ lead-206.

relative and absolute age dating-54

However, there are radiometric dating methods that can be used on sedimentary rock, including luminescence dating.Topics: Earth, the Moon, geology, explaining science, Late Heavy Bombardment A few days ago, I wrote a post about the basins of the Moon -- a result of a trip down a rabbit hole of book research.Here's the next step in that journey: the Geologic Time Scales of Earth and the Moon.These use radioactive minerals in rocks as geological clocks.The atoms of some chemical elements have different forms, called isotopes.

However, there are radiometric dating methods that can be used on sedimentary rock, including luminescence dating.

Topics: Earth, the Moon, geology, explaining science, Late Heavy Bombardment A few days ago, I wrote a post about the basins of the Moon -- a result of a trip down a rabbit hole of book research.

Here's the next step in that journey: the Geologic Time Scales of Earth and the Moon.

These use radioactive minerals in rocks as geological clocks.

The atoms of some chemical elements have different forms, called isotopes.

Radiocarbon dating measures radioactive isotopes in once-living organic material instead of rock, using the decay of carbon-14 to nitrogen-14.