Radiometric Dating is Flawed!! Really?? How Old IS the Earth?
types of radiometric dating
Rubidium-strontium dating This is based on the decay of rubidium isotopes to strontium isotopes, and can be used to date rocks or to relate organisms to the rocks on which they formed. It suffers from the problem that rubidium and strontium are very mobile and may easily enter rocks at a much later date to that of formation. One problem is that potassium is also highly mobile and may move into older rocks. Due to the long half-life of uranium it is not suitable for short time periods, such as most archaeological purposes, but it can date the oldest rocks on earth. This leaves out important information which would tell you how precise is the dating result.
radiometric dating accuracy
Debunking Creationism: "Radiometric Dating Is Unreliable!"
A Brief History of Geologic Time
radiometric dating calculator
Backgrounder Radiometric Dating. Geologists have calculated the age of Earth at 4. But for humans whose life span rarely reaches more than 100 years, how can we be so sure of that ancient date? It turns out the answers are in Earth's rocks. Even the Greeks and Romans realized that layers of sediment in rock signified old age. But it wasn't until the late 1700s -- when Scottish geologist James Hutton, who observed sediments building up on the landscape, set out to show that rocks were time clocks -- that serious scientific interest in geological age began.