“Soluble Salts of the Earth” with David Walker (Oct 2001)

Soluble Salts of the Earth
with Dr. David Walker

 

Originally presented 20 Oct 2001

View the introductory slide presentation

 

Earth Science Content

View Dr. Walker’s slide presentation

Dr. Walker is the Higgins Professor in Columbia’s Dept. of Earth and Environmental Sciences, with many achievements in the field of Geochemistry.

View Dr. Walker’s slide presentation

Basic to teaching Earth science. In this program, we find out how a petrologist looks at them, especially the crystalline state that characterizes minerals. The best way to demonstrate that minerals are crystalline is to show that they diffract X-rays. The variety of diffraction patterns produced is extremely useful in distinguishing different minerals from each other. A demonstration of diffraction and the theory behind it will be presented with practical applications.

Links to Dr. Walker’s Other E2C presentations:

“Rocks and Minerals”

“Is Earth’s Core Leaking?”


Rocks and Minerals Resources

Examples of Related Physical Science/Chemistry Activities

 

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