Difference between chronometric dating relative dating

There are two basic approaches relative age dating, and absolute age dating.

Here is an easy-to understand analogy for your students relative age dating is like saying that your grandfather is older than you.

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Biostratigraphy: An extended version of stratigraphy where the faunal deposits are used to establish dating.

Faunal deposits include remains and fossils of dead animals.

Cross dating: This method compares the age of remains or fossils found in a layer with the ones found in other layers.

The comparison helps establish the relative age of these remains.

Fluorine dating: Bones from fossils absorb fluorine from the groundwater.

The amount of fluorine absorbed indicates how long the fossil has been buried in the sediments.➤ It determines the age of a rock/object using radiometric techniques.➤ Absolute dating is quantitative.➤ This technique helps determine the exact age of the remains.➤ It is more specific than relative dating.➤ Absolute dating is expensive and time-consuming.➤ It works best for igneous and metamorphic rocks.

This Buzzle post enlists the differences between the absolute and relative dating methods.

Geological specimens that are unearthed need to be assigned an appropriate age.

Belmont West Publishing Absolute and relative age dating, 1997. Absolute dating is the process Absolute dating provides a numerical age or range in contrast with relative dating which where it is used to determine. Some scientists prefer the terms chronometric or calendar.

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