Fossil age dating


05-Jun-2019 06:54

One outcrop shows layers from one geologic time period, while the other outcrop represents a different time. Can he put the pieces together to make the story more complete? Let's find out how scientists deal with this common problem by using the fossils inside the rocks.

Obviously, the fossil assemblages change from period to period.Organisms usually need to be covered by mud, sand, tar or some other sediment as soon as possible or frozen or dessicated (dried out) for fossilization to occur.Fossils, by definition, are the remains or traces of organisms that lived at least 10,000 years ago.Scientists are still finding a few new sites where they live today but they were quite abundant on earth some 2 billion years ago, and perhaps earlier.

Geologists credit stromatolite activity for creating the earth's first atmospheric oxygen and making animal life possible.

These isotopes aren’t found in the fossils themselves, but in the rock encasing the fossils Geologists in the International Commission on Stratigraphy make proposals based on the most recent studies to constantly update the geologic time scale of the world’s rocks.



Physical continuity. • Similarity of rock types. • Superposition. • Correlation by fossils. – Principle of faunal succession. – Concept of index fossil. – Fossil assemblage. • Radioisotopic dating-comparisons. Timing of event on the regional scale Correlation. Correlation of strata Colorado Plateau.… continue reading »


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Jan 6, 2011. Most scientists and many Christians believe that the radiometric dating methods prove that the earth is 4.5 billion years old. Recent research shows. Instead, layers that contain datable igneous rocks above or below a fossil-bearing layer are used to estimate the age of the fossil. The age of the fossil can.… continue reading »


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