Historical Geology is a free online textbook for Historical Geology courses. It includes the following chapters, as well as a series of case studies, virtual field experiences, tools of the trade, and virtual sample sets.

Chapters:
What is Historical Geology?
A Brief History of Earth
Earth as a System
Earth Materials – The Rock-Forming Minerals
Earth Materials – Rocks
Plate Tectonics
Geologic time
Evolution Part I: The Theory
Taphonomy: The Science of Death and Decay
Innovations of Life Through Time: Life Finds a Way
Stratigraphy – The Pages of Earth’s Past
Using sedimentary structures to interpret ancient environments
Facies
Paleoclimatology