Earth's surface has changed in countless ways during the 4.6 billion years since it formed, and it continues to change today. This video segment looks at some of the geologic processes that have shaped the landscape near...

Since the Hawaiian Islands were all created by volcanic activity, it is somewhat surprising that only the island of Hawaii now possesses any active volcanoes. Why did the volcanoes that built the other islands stop...

The SAGUARO project CD-ROM features three learning modules that use GIS to learn about earth system science. The three modules - Exploring Tropical Cyclones, Exploring the Dynamic Earth, and Exploring Water Resources -...

Humans use soil for their daily needs but do not sufficiently take account of its slow formation and fast loss. Discover the amazing geology of soil formation and the basic rock and soil types.Although soil seems the end...

This class handout contains maps and background information about the mid-continent rift system. The summary of the stratigraphy, structure, and mineralization of rift rocks provides an overview of rift rocks in northern...