Relative Dating of Rock Layers

Explore the principles of relative dating in geology through a comprehensive video lecture. Learn to determine the sequence of geologic events by analyzing exposed rock cross-sections. Discover key concepts such as uniformitarianism, the law of superposition, original horizontality, and inclusions. Understand how to interpret intrusions, unconformities, and fossil evidence to reconstruct Earth's history. Download accompanying notes and access additional science resources to enhance your understanding of this fundamental geological technique.

GEOLOGIC HISTORY Relative Dating of Rock Layers
The trilobite fossil is older than the dinosaur tooth fossil?
RELATIVE DATING Geologic Sequencing
UNIFORMITARIANISM
Geologic Cross-Sections
The layers of rock on the bottom are the oldest.
THE LAW OF SUPERPOSITION
THE LAW OF ORIGINAL HORIZONTALITY
Intrusions are younger than the rocks they metamorphose.
Unconformities represent a missing part of the rock record.
THE LAW OF INCLUSIONS