Uranium lead dating accuracy

10 Oct

While these values do not compute an age for the Earth, they do establish a lower limit (the Earth must be at least as old as any formation on it).

uranium lead dating accuracy-10

There is evidence that energy from the Earth's accumulation caused the surface to be molten.

Carbon dating is used to determine the age of biological artifacts up to 50,000 years old.

This technique is widely used on recent artifacts, but educators and students alike should note that this technique will not work on older fossils (like those of the dinosaurs alleged to be millions of years old).

Some of these rocks are sedimentary, and include minerals which are themselves as old as 4.1 to 4.2 billion years.

Rocks of this age are relatively rare, however rocks that are at least 3.5 billion years in age have been found on North America, Greenland, Australia, Africa, and Asia.