Phanerozoic Eon: Support this project. It cannot be used to accurately date a site on its own. Albert Einstein's Inventions. Want to watch this again later? Your answer is required.
This narrows the date of the delta beds to the four million years between these dates.
Absolute dating is the process of determining an age on a specified chronology in archaeology and geology. This scheme has been refined to the point that the error margin in dates of rocks can be as low as less than two million years in two-and-a-half billion years. Starting Original Price.