Examlex
Numerical ages for boundaries between time units on the geologic time scale primarily resulted from the study of ________,in conjunction with relative age data.
Magma
Hot molten or semi-fluid rock located beneath the Earth's surface, which can erupt through volcanoes.
Evolutionary Diagrams
Visual representations that depict the relationships among organisms or groups based on their shared evolutionary history.
Stratigraphic Section
A columnar diagram that shows the sequence of rock units, generally in their approximate relative thicknesses.
Wavelengths
The distance between successive crests of a wave, typically used in the context of electromagnetic waves.
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