Bathymetric data also relies on the collection and study of sediment cores. Here, Symons poses with a sediment core that has recorded the shifting composition of the seafloor over thousands of years.

Photograph by Jan Craven, courtesy Christina Symons
Our media can be used in a variety of contexts—from media spotlights to encyclopedic entries to lessons. From this page, check out the different ways you can use this .

Other Pages That Use This Item

Floor Plan
Floor Plan Article

Best For
6 - 12 and up

Earth Science, Geography

Appropriate For

  • Educators
  • Families
  • Students

Dr. Christina Symons not only describes her work mapping the seafloor but she also explains how all ocean geologists work to uncover what lies under our world’s oceans.