This activity is an inquiry-based field investigation of the sedimentary geology of Lilydale Regional Park's brickyards area, a bluff and slope location near St. Paul Minnesota's Harriet Island and Cherokee Heights Park. Young scholars...

This article gives a detailed explanation of how transgression and regression of sea levels work to create deposits of sedimentary rocks. Illustrations show the layering that takes place over time. The article discusses how geologists...

Read about the pioneers in Earth's geologic history and their discovery of how the process of uniformitarianism shaped the study of evolution.

Explains what graded bedding is and how it forms in sedimentary deposits.