Log In

Grades

Subjects

Info

Grades

6-12

Accessibility

Auditory, Visual, Caption

Permitted Use

Stream, Download and Share


Part of NOVA
122 Favorites
1636 Views
Please login in order to rate this resource!

The Grand Canyon: Its Youngest Rocks

This video segment adapted from NOVA shows a dramatic landscape created by relatively recent rock-forming activity in the Grand Canyon. Volcanic eruptions only a million years ago created the canyon's youngest rocks. In contrast with the much older Vishnu Schist formation, this younger rock has been much more susceptible to physical change. When three-hundred-meter (thousand-foot) lava dams periodically blocked the river, they were quickly eroded away and river flow restored.

This video is available in both English and Spanish audio, along with corresponding closed captions.

Contributor:
Funder:
Producer:

You must be logged in to use this feature

Need an account?
Register Now