Welcome to The GEOPHILE Pages! I am a professor of Geology at both CSU Los Angeles and Pasadena City College. These pages are designed to help everyone explore the wonders of geology and oceanography.

  • Learn - Learn about geology and oceanography
  • Explore - Go on a virtual field trip to learn more about the geology and oceanography of Southern California
  • Girl Scouts - Geology and Oceanography related activities for badges (Coming Soon!)
  • About - Learn more about me and how to become an Earth Scientist (Coming Soon!)
CSULA Department of Geosciences and the Environment
Pasadena City College Department of Geology  
    © Sonjia Leyva 2018