Earth Cycles

The Rock Cycle: Uniformitarianism and Recycling

by Anne E. Egger, Ph.D.


Modelling the Rock Cycle Using STELLA

Dave Bice, Pennsylvania State University

Further Exploration

A Plate Tectonic Rock Cycle

Lynn Fichter, James Madison University - This website explores the question does the earth cycle, or does it evolve cyclically? Is uniformitarianism true, or is it an oversimplified view of the earth?

Cascades Volcano Observatory

USGS - This site has up-to-the-minute information about volcanoes in teh Cascades, including eruptions, earthquakes, debris flows, hazards, and images.

What Stories Do Rocks Tell?

Exploring Earth - Explore pictures of geologic features and describe how they formed through processes in the rock cycle.


James Hutton

James Hutton

Univ. of St. Andrews, Scotland


Theory of the Earth

James Hutton's 1795 publication that forms the foundation of geological theory.

News & Events

Humans May Surpass Other Natural Forces as Earth Movers

Science Daily

Revisiting the Fall of the Old Man of the Mountain

Geotimes (American Geological Institute) - discussion of the geological reasons for the collapse of the Old Man of the Mountain.

Can Carbon Sequestration Stop Global Warming?

Science Daily

Current Science News

News from around the world of science.


Google Scholar

Google - Research database allows searching of the scholarly literature.


Interactive Rock Cycle


Next Generation Science Standards (NGSS)

Next Generation Science Standards: For States, By States

National Academies Press: A Framework for K-12 Science Education