A bed of manganese nodules from deep offshore of the Cook Islands; photo sourced from Hein et al., 2015, taken during a Japanese research cruise in the year 2000. Nodules range from about 2 to 10 centimeters across.
Images
A bed of manganese nodules from deep offshore of the Cook Islands; photo sourced from Hein et al., 2015, taken during a Japanese research cruise in the year 2000. Nodules range from about 2 to 10 centimeters across.
![Two men stand by an oil well pumping unit, one man is crouched over the well, all in a forested location.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/WellBobMcLaughlin.jpg?itok=8FSWr1SB)
The south area of the La Honda oil field, California, was discovered during the late 1950s and produced an estimated 595,000 barrels of oil from about 12 wells, including the well in this photo.
The south area of the La Honda oil field, California, was discovered during the late 1950s and produced an estimated 595,000 barrels of oil from about 12 wells, including the well in this photo.
An earthquake along a subduction zone happens when the leading edge of the overriding plate breaks free and springs seaward, raising the sea floor and the water above it. This uplift starts a tsunami. Meanwhile, the bulge behind the leading edge collapses, thinning the plate and lowering coastal areas.
An earthquake along a subduction zone happens when the leading edge of the overriding plate breaks free and springs seaward, raising the sea floor and the water above it. This uplift starts a tsunami. Meanwhile, the bulge behind the leading edge collapses, thinning the plate and lowering coastal areas.
![Poster with illustrations of the underwater part of a bay, with text about the work done in the area.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/SFBayPosterSize.jpg?itok=l3M83l4T)
Large-scale poster describing USGS work.
The USGS mapped western San Francisco Bay using sonar, in cooperation with the National Oceanic and Atmospheric Administration (NOAA) and C&C Technologies. Some parts of the Bay floor are so shallow that a large tanker or container ship could run aground at low tide and create a massive oil spill.
Large-scale poster describing USGS work.
The USGS mapped western San Francisco Bay using sonar, in cooperation with the National Oceanic and Atmospheric Administration (NOAA) and C&C Technologies. Some parts of the Bay floor are so shallow that a large tanker or container ship could run aground at low tide and create a massive oil spill.
George Tate (right, in light baseball cap) drives a raft on the Colorado River in Grand Canyon, 1992. The crane near the bow was used to deploy a small tripod holding a rotating sidescan sonar, which sat on the riverbed recording the motion of underwater sand dunes.
George Tate (right, in light baseball cap) drives a raft on the Colorado River in Grand Canyon, 1992. The crane near the bow was used to deploy a small tripod holding a rotating sidescan sonar, which sat on the riverbed recording the motion of underwater sand dunes.
An automobile lies crushed under the third story of this apartment building in the Marina District. The ground levels are no longer visible because of structural failure and sinking due to liquefaction.
An automobile lies crushed under the third story of this apartment building in the Marina District. The ground levels are no longer visible because of structural failure and sinking due to liquefaction.
Large-scale poster describing USGS work.
The USGS, in cooperation with the UK Institute of Oceanographic Sciences (IOS) and others, took images of the seafloor 200 miles around the Hawaiian Islands using GLORIA. GLORIA is a long-range sonar that gives a bird’s-eye view of the seafloor.
Large-scale poster describing USGS work.
The USGS, in cooperation with the UK Institute of Oceanographic Sciences (IOS) and others, took images of the seafloor 200 miles around the Hawaiian Islands using GLORIA. GLORIA is a long-range sonar that gives a bird’s-eye view of the seafloor.
![A map showing the ocean floor with shades of color to indicate changing depth, nd other demarkations to show various features](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/bathy-esanaba.jpg?itok=XiA9xEQ8)
Sea Beam bathymetric map of southern Escanaba Trough study area. Contour interval is 10m and is noted by color change. Locations of single- channel water-gun reflection profiles 4 to 12, cruise L1-86-NC, are shown.
Sea Beam bathymetric map of southern Escanaba Trough study area. Contour interval is 10m and is noted by color change. Locations of single- channel water-gun reflection profiles 4 to 12, cruise L1-86-NC, are shown.
Glassy, fresh pillow basalt flow at the NESCA site, northern half of Escanaba Trough.
Glassy, fresh pillow basalt flow at the NESCA site, northern half of Escanaba Trough.
![Photo of seafloor shows older, oxidized sulfide deposit colonized by sponges](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Figure%201.10%20B.jpg?itok=toK0gGD-)
Older, oxidized sulfide deposit colonized by sponges at SESCA site, southern half of Escanaba Trough.
Older, oxidized sulfide deposit colonized by sponges at SESCA site, southern half of Escanaba Trough.
![Photo of seafloor shows sulfide mound and talus](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Figure%201.10%20C.jpg?itok=3kchayc-)
Sulfide mound and talus at NESCA site. Rectangular marker at center of photograph is 15 by 30 cm
linkSulfide mound and talus at NESCA site, northern half of Escanaba Trough. Rectangular marker at center of photograph is 15 by 30 cm.
Sulfide mound and talus at NESCA site. Rectangular marker at center of photograph is 15 by 30 cm
linkSulfide mound and talus at NESCA site, northern half of Escanaba Trough. Rectangular marker at center of photograph is 15 by 30 cm.
![Side of actively ventiPhoto of massive sulfide chimney colonized by tube worms and palm worms](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Figure%201.11%20A.jpg?itok=J9Vdm8rx)
Photo shows the side of an actively venting massive sulfide chimney colonized by tube worms and palm worms.
Photo shows the side of an actively venting massive sulfide chimney colonized by tube worms and palm worms.
![Photo of tube worms and anemones colonize massive sulfide talus where diffuse hydrothermal venting is occurring](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Figure%201.11%20B.jpg?itok=134jyLeJ)
Tube worms and anemones colonize massive sulfide talus where diffuse hydrothermal venting is occurring
linkPhoto shows tube worms and anemones colonizing massive sulfide talus where diffuse hydrothermal venting is occurring.
Tube worms and anemones colonize massive sulfide talus where diffuse hydrothermal venting is occurring
linkPhoto shows tube worms and anemones colonizing massive sulfide talus where diffuse hydrothermal venting is occurring.
![Photo of side of sulfide mound showing cluster of tube worms, anemones, and bacterial mats](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Figure%201.11%20C.jpg?itok=urvhSM_e)
Photo shows side of sulfide mound showing cluster of tube worms, anemones, and bacterial mats.
Photo shows side of sulfide mound showing cluster of tube worms, anemones, and bacterial mats.
![Photo of hydrothermal deposits (primarily barite) adjacent to site of active venting](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Figure%201.11%20D.jpg?itok=CHhKfLmD)
Hydrothermal deposits (primarily barite) adjacent to site of active venting. Shiny black material is possibly pyrobitumen.
Hydrothermal deposits (primarily barite) adjacent to site of active venting. Shiny black material is possibly pyrobitumen.
![Dynaphot photomicrographs of foraminifers from Escanaba Trough](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Figure%2018.9.jpg?itok=BgHtB-Am)
Dynaphot photomicrographs of foraminifers from Escanaba Trough. A-D, Rhabdammina sp.
Dynaphot photomicrographs of foraminifers from Escanaba Trough. A-D, Rhabdammina sp.
Sea Beam bathymetric map of Escanaba Trough from 1985. A, Northern half. B, Southern half. Contour interval is 50 m; each color change represents 100 m. Yellow indicates areas of no data.
Sea Beam bathymetric map of Escanaba Trough from 1985. A, Northern half. B, Southern half. Contour interval is 50 m; each color change represents 100 m. Yellow indicates areas of no data.
Topographic map of the Cape Flattery region (U.S. Geological Survey Cape Flattery Quadrangle, 15-min series).
Topographic map of the Cape Flattery region (U.S. Geological Survey Cape Flattery Quadrangle, 15-min series).
George Tate playfully brandishes a grappling hook in a boat in Cook Inlet, Alaska, 1978. The driver (not shown) and George are about to motor away from the research vessel Sea Sounder to drag for the large tripod dubbed the Geoprobe. The apparatus had not deployed its recovery float and line, so the scientists had to try to hook it up off the seafloor.
George Tate playfully brandishes a grappling hook in a boat in Cook Inlet, Alaska, 1978. The driver (not shown) and George are about to motor away from the research vessel Sea Sounder to drag for the large tripod dubbed the Geoprobe. The apparatus had not deployed its recovery float and line, so the scientists had to try to hook it up off the seafloor.
Three pioneers of USGS geological studies, in 1965, from left to right: Parke D. Snavely, Jr., Robert E. Wallace, and Thomas W. Dibblee, in front of a 1964 Cessna 182G Skylane.
Three pioneers of USGS geological studies, in 1965, from left to right: Parke D. Snavely, Jr., Robert E. Wallace, and Thomas W. Dibblee, in front of a 1964 Cessna 182G Skylane.