Teacher Advocate Program

This teaching resource was developed as part of the Geological Society of America's Teacher Advocate Program.

This program could not operate without the support of the following donors :

Dr. R. Ernest Anderson , Dr. Richard C. Anderson , Mr. J. Kaspar Arbenz , Dr. David F. Barnes , Dr. Pierre E. Biscaye , Dr. Robert W. Blair , Dr. Ernest W. Blythe Jr., Mr. Donald J. Brown , Dr. Bruce H. Bryant , Mr. William L. Chenoweth , Mr. Richard J. Councill , Dr. Mary R. Dawson , Mr. Robert J. Deacon , Mr. Christopher F. Erskine , Mr. Delos E. Flint , Dr. Helen L. Foster , Mr. G. Sidney Fox , Dr. Paul C. Franks , Dr. Ira Ellsworth Furlong , Mr. Leland H. Gile Jr., Dr. Howard R. Gould , Mr. Eugene R. Hampton , Prof. Charles G. Higgins , Mr. Melvin J. Hill , Mr. Charles J. Hoke , Dr. Fred T. Holden , Dr. Donald M. Hoskins , Dr. Michael E. Hriskevich , Dr. Roy M. Huffington , Dr. Robert B. Johnson , Mr. Owen Kingman , Dr. M. Dean Kleinkopf , Mr. Frank C. W. Kresse , Dr. Morris W. Leighton , Mr. Robert W. Maclay , Dr. Marvin D. Mangus , Dr. Charles J. Mankin , Mr. Lawrence E. Mannion , Mr. Richard F. Marvin , Mr. Peter H. Masson , Dr. Judson Mead , Dr. John W. M'Gonigle , Dr. Robert B. Mixon , Mr. William A. Moon Jr., Dr. William R. Muehlberger , Mr. Willis H. Nelson , Dr. Richard L. Nielsen , Dr. E. A. Noble , Dr. Jack E. Oliver , Dr. Richard K. Olsson , Mrs. Elizabeth F. Overstreet , Mr. William C. Overstreet , Mr. Elmer D. Patterson , Dr. Ralph B. Peck , Dr. Russel A. Peppers , Mr. William L. Petrie , Dr. Ranard J. Pickering , Miss Claire A. Richardson , Mr. Jack C. Rosenau , Mr. Hy Seiden , Dr. John S. Shelton , Mr. Harold K. Stager , Mr. Raymond T. Stotler Jr., Mr. Lawrence D. Taylor , Dr. Richard L. Threet , Dr. Joshua I. Tracey Jr., Mr. Frederick D. Trauger , Dr. Sherwood D. Tuttle , Ms. Florence Robinson Weber , Dr. Robert H. Weber , Dr. Robert J. Weimer , Dr. John H. Weitz , Dr. David Archer White.

Use your browsers Back and Forward arrows to navigate

An education project of :