A cooperative effort between nineteen oceanographic institutions and government agencies that maintain marine sample repositories to provide information on the contents of their collections to help researchers locate marine sediment and rock material for further analysis," states the homepage of this site provided by the National Oceanographic and Atmospheric Administration's (NOAA's) National...

The National Geophysical Data Center at the National Oceanic and Atmospheric Administration (NOAA) has a wide range of educational materials designed for oceanographers, private industry partners, and a range of other users. This particular corner of the site brings together dozens of resources that deal with seafloor topography, sediment thickness, natural hazards, and unique animated dives to...