Geology relative dating activity


25-Apr-2020 23:11

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.

The rate of decay of these elements helps determine their age, and in turn the age of the rocks.

The area of intersection of both sets depicts the functions common to both.

Take a look at the diagram to understand their common functions.

Thermoluminescence: It determines the period during which certain object was last subjected to heat.

It is based on the concept that heated objects absorb light, and emit electrons. A Venn diagram depicts both dating methods as two individual sets.Stratigraphy: The oldest dating method which studies the successive placement of layers.