Videos

Time lapse video of Angela Tan working in the USGS Sediment Lab Suite and Carbon Analysis Laboratory at the Pacific Coastal and Marine Science Center in Santa Cruz, California.

--modern sonar reveals hidden hazards and resources

by David Finlayson, Marine Geologist 

Virtual fly-through over the seafloor of Central California near San Francisco as if the water was drained from the ocean. The movie flies out of San Francisco Bay pausing over a field of large sand waves west of the Golden Gate, and then up to the Bolinas area revealing folded and fractured bedrock.

--the visionary California Seafloor Mapping Program

by Sam Johnson, USGS Pacific Coastal & Marine Science Center 

USGS scientists from the Pacific Coastal and Marine Science Center explore how sediment moves across San Francisco Bay tidal flats.  The research team deploys a suite of large instrumented tripods to record sediment movements over a six-week period in early 2011.  Answers from this work will help determine whether deposition of sediment at high tide is occ

American and Canadian scientists head north on a collaborative expedition to map the Arctic seafloor and gather data to help define the outer limits of the continental shelf. Each coastal nation may exercise sovereign rights over the natural resources of their continental shelf.

Virtual fly-through of San Francisco Bay revealing the seafloor as if the water was drained from the Bay. The movie flies through the south and central Bay, pausing over prominent seafloor features including, large sand waves, rock pinnacles, current scour pits, as well as many human impacts on the seafloor.

Deployment of the Conductivity, Temperature, and Depth Profiler (CTD) equipment from the U.S. Coast Guard Cutter Healy in the Artic Ocean.

Probing the mysteries of deep-ocean minerals

By James R. Hein, Marine Geologist