How Caves Form
http://www.pbs.org/wgbh/nova/caves/form.html


This resource uses text and animation to depict the various processes that produce caves. For example, microbes feeding on the deadly gas hydrogen sulfide long ago excreted sulfuric acid that helped carve out Lechuguilla, Carlsbad. Geologists and microbiologists working in a still-growing Mexican cave provided the extraordinary evidence needed to convince skeptics. Other ways that caves form include mildly acidic rainwater eating away limestone caverns, ocean waves scouring out sea caves, and lava forming long tunnels called lava tubes. In this feature, the student can follow along as each of these four agents go about making caves.

This description of a site outside SERC has not been vetted by SERC staff and may be incomplete or incorrect. If you have information we can use to flesh out or correct this record let us know.


This resource originally cataloged at:

DLESE

Subject: Geoscience:Geology:Geochemistry, Geoscience:Oceanography
Grade Level: High School (9-12), Intermediate (3-5), Middle (6-8)
Theme: Teach the Earth:Course Topics:Oceanography, Geochemistry