Osl dating technique
James Hutton and William Smith advanced the concept of geologic time and strengthened the belief in an ancient world.Hutton, a Scottish geologist, first proposed formally the fundamental principle used to classify rocks according to their relative ages.A few examples of such lies are presented at the very bottom of this page.For each dating or chronological method there is a link in the box at right to take you to that section of this page.Please remember that all dating methods, even those termed "absolute," are subject to margins of error. That is a very small amount of possible error range. Modern studies almost always use two or more methods to confirm dating work and to build confidence in the results obtained.Overview of Methods Superposition Stratigraphy Dendrochronology Radiocarbon C14 Radiometric Dating Methods Obsidian Hydration Dating Paleomagnetic/Archaeomagnetic Luminescence Dating Methods Amino Acid Racemization Fission-track Dating Ice Cores Varves Pollens Corals Cation Ratio Fluorine Dating Patination Oxidizable Carbon Ratio Electron Spin Resonance Cosmic-ray Exposure Dating This is an excellent overview of dating methodologies, and is a chapter in a textbook on Archaeology.Earth's oldest living inhabitant "Methuselah" at 4,767 years, has lived more than a millennium longer than any other tree.[ While this may be true, a shrub in Tasmania could be 40,000 years old.
The most compelling argument for an age of the earth of 4.5 billion years are the large number of independent tests that have been used to confirm this date.
Chronological sequence is all that is really required.
However, human beings love to see factual precision, and we want to know how old something is.
Because fossils actually record the slow but progressive development of life, scientists use them to identify rocks of the same age throughout the world.
See more information about "Strata" Smith and his original geologic map of England.