Explain relative dating of fossils

30-Jul-2017 08:32 by 5 Comments

Explain relative dating of fossils

Relative dating makes use of the common sense principle that in a deposition of layers.A layer that is higher is of later age than a layer that is lower in order.

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However, age of deposition does not mean the age of artifacts found in that layer.For example, carbon dating is used to determine the age of organic materials.Once something dies, it ceases taking in new carbon-14, and the existing carbon-14 within the organism decays into nitrogen at a fixed rate.Relative dating helps determine what came first and what followed, but doesn't help determine actual age.Radiometric dating, or numeric dating, determines an actual or approximate age of an object by studying the rate of decay of radioactive isotopes, such as uranium, potassium, rubidium and carbon-14 within that object. This rate provides scientists with an accurate measurement system to determine age.• Absolute dating techniques can tell the exact age of an artifact by employing various techniques, the most popular being C-14 dating.

PALEONTOLOGY, AND in particular the study of dinosaurs, is an exciting topic to people of all ages.As the name implies, relative dating can tell which of the two artifacts is older.This is a method that does not find the age in years but is an effective technique to compare the ages of two or more artifacts, rocks or even sites.Although most attention in today's world focuses on dinosaurs and why they became extinct, the world of paleontology includes many other interesting organisms which tell us about Earth's past history.The study of fossils and the exploration of what they tell scientists about past climates and environments on Earth can be an interesting study for students of all ages.Artifacts found in a layer can be compared with other items found in layers of similar age and placed in order.

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