Principles of relative dating of geologic events

The Scottish geologist James Hutton (1726-1797) argued that granite and basalt by solidification within the earth (as opposed to precipitating in from oceanwater).

This idea is known as Plutonism, in reference to the God of the deep underworld.

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Geology also plays a role in geotechnical engineering and is a major academic discipline.

Teaching about Earth's history is a challenge for all teachers.

Time factors of millions and billions of years is difficult even for adults to comprehend.

The majority of research in geology is associated with the study of rock, as rock provides the primary record of the majority of the geologic history of the Earth.

is a way to use geometric relationships between rock bodies to determine the sequence of geologic events in an area.