Tom Lorensen, USGS Physical Scientist, uses an ultraviolet light to examine mineral samples aboard R/V Thomas G. Thompson.
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Examining mineral samples
Tom Lorensen, USGS Physical Scientist, uses an ultraviolet light to examine mineral samples aboard R/V Thomas G. Thompson.
Examining rocks from the deep ocean
Amy Gartman, USGS Research Oceanographer and chief scientist for the Escanaba Trough expedition, examines a mineral sample with a hand lens aboard R/V Thomas G. Thompson.
Amy Gartman, USGS Research Oceanographer and chief scientist for the Escanaba Trough expedition, examines a mineral sample with a hand lens aboard R/V Thomas G. Thompson.
Pyrrhotite-rich massive sulfide
Close-up of fine-grained pyrrhotite-rich massive sulfide. The deep-sea sample was collected from the Escanaba Trough, in the Pacific Ocean off the coast of California.
Close-up of fine-grained pyrrhotite-rich massive sulfide. The deep-sea sample was collected from the Escanaba Trough, in the Pacific Ocean off the coast of California.
Hydrothermal chimney composed mostly of barite
Partially weathered hydrothermal chimney, composed mostly of barite (BaSO4). The white material is the outer weathered rind, where the disseminated sulfide minerals have been leached out by oxidation, leaving an orange iron oxide stain.
Partially weathered hydrothermal chimney, composed mostly of barite (BaSO4). The white material is the outer weathered rind, where the disseminated sulfide minerals have been leached out by oxidation, leaving an orange iron oxide stain.
Remotely operated vehicle collects seafloor rock samples
Two hands are better than one! The versatile, ambidextrous ROV (remotely operated vehicle) Jason collects two mineral samples from the seafloor at Escanaba Trough. Jason's sample collection tubes are visible off to the left.
Two hands are better than one! The versatile, ambidextrous ROV (remotely operated vehicle) Jason collects two mineral samples from the seafloor at Escanaba Trough. Jason's sample collection tubes are visible off to the left.
Iron-oxyhydroxide gossan
Iron-oxyhydroxide gossan, formed by weathering of massive sulfide. Dominantly porous orange goethite, with a compact darker to metallic layer of dense goethite.
Iron-oxyhydroxide gossan, formed by weathering of massive sulfide. Dominantly porous orange goethite, with a compact darker to metallic layer of dense goethite.
Fine-grained massive sulfide
Close up of fine-grained massive sulfide containing the primary minerals pyrrhotite, sphalerite, and barite. Weathering has produced secondary minerals, including iron oxide and possibly jarosite. Shiny image shows the same rock under an ultraviolet light source, revealing the minerals that fluoresce under the light.
Close up of fine-grained massive sulfide containing the primary minerals pyrrhotite, sphalerite, and barite. Weathering has produced secondary minerals, including iron oxide and possibly jarosite. Shiny image shows the same rock under an ultraviolet light source, revealing the minerals that fluoresce under the light.
Fine-grained massive sulfide
Close up of fine-grained massive sulfide containing the primary minerals pyrrhotite, sphalerite, and barite. Weathering has produced secondary minerals, including iron oxide and possibly jarosite. Second image shows the same rock under an ultraviolet light source, revealing the minerals that fluoresce under the light.
Close up of fine-grained massive sulfide containing the primary minerals pyrrhotite, sphalerite, and barite. Weathering has produced secondary minerals, including iron oxide and possibly jarosite. Second image shows the same rock under an ultraviolet light source, revealing the minerals that fluoresce under the light.
Fine-grained seafloor massive sulfide
Close up of fine-grained seafloor massive sulfide containing the primary minerals pyrrhotite, sphalerite, and barite. Weathering has produced secondary minerals, including iron oxide and possibly jarosite.
Close up of fine-grained seafloor massive sulfide containing the primary minerals pyrrhotite, sphalerite, and barite. Weathering has produced secondary minerals, including iron oxide and possibly jarosite.
Fine-grained seafloor massive sulfide
Close up of fine-grained seafloor massive sulfide under an ultraviolet light source, revealing the minerals that fluoresce under the light.
Close up of fine-grained seafloor massive sulfide under an ultraviolet light source, revealing the minerals that fluoresce under the light.
ROV collecting a mineral sample
Woods Hole Oceanographic Institute's remotely operated vehicle Jason gathers a mineral sample from the seafloor at Escanaba Trough.
Woods Hole Oceanographic Institute's remotely operated vehicle Jason gathers a mineral sample from the seafloor at Escanaba Trough.
Screenshot of a simulated tsunami animation
Screenshot of an idealized animation of tsunamis produced by the 15 January 2022 eruption of Hunga Tonga-Hunga Haʻapai volcano in the Kingdom of Tonga. View to the north-northeast. The fastest water wave to radiate away from the eruption is being pushed by an atmospheric wave triggered by the explosion.
Screenshot of an idealized animation of tsunamis produced by the 15 January 2022 eruption of Hunga Tonga-Hunga Haʻapai volcano in the Kingdom of Tonga. View to the north-northeast. The fastest water wave to radiate away from the eruption is being pushed by an atmospheric wave triggered by the explosion.
Jumbo Piston Corer
Deep water camera and light installed in the head weight of the upgraded USGS jumbo piston corer. In the background, USGS Marine Engineering Technician Daniel Powers is preparing the core liner for sediment collection.
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center, 3-D CT Core Imaging Laboratory, Core Preparation and Analysis Laboratory and Sample Repositories, Multi-Sensor Core Logger Laboratory, Deep Sea Exploration, Mapping and Characterization
Deep water camera and light installed in the head weight of the upgraded USGS jumbo piston corer. In the background, USGS Marine Engineering Technician Daniel Powers is preparing the core liner for sediment collection.
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center, 3-D CT Core Imaging Laboratory, Core Preparation and Analysis Laboratory and Sample Repositories, Multi-Sensor Core Logger Laboratory, Deep Sea Exploration, Mapping and Characterization
Jumbo Piston Corer
Pete Dal Ferro, USGS Marine Engineering Technician and lead fabricator on the JPC upgrade, monitors the testing of the coring system on R/V Hugh R. Sharp in March 2022.
Pete Dal Ferro, USGS Marine Engineering Technician and lead fabricator on the JPC upgrade, monitors the testing of the coring system on R/V Hugh R. Sharp in March 2022.
Jumbo Piston Corer
Upgraded USGS jumbo piston corer being readied for deployment off the research vessel Hugh R. Sharp in April 2022.
Upgraded USGS jumbo piston corer being readied for deployment off the research vessel Hugh R. Sharp in April 2022.
USGS ocean current drifter disk
None the worse for wear, a plastic, ocean current drifter disk, originally released off Barter Island in Alaska, was discovered on the coast of Scotland 37 years after its initial release into the ocean.
None the worse for wear, a plastic, ocean current drifter disk, originally released off Barter Island in Alaska, was discovered on the coast of Scotland 37 years after its initial release into the ocean.
Cascadia margin bathymetry
Bathymetry data from various sources, including newly released 2018 and 2019 multibeam data collected by the National Oceanic and Atmospheric Administration (NOAA) and the U.S. Geological Survey (USGS), were combined to create a composite 30-m resolution multibeam bathymetry surface of the southern Cascadia Margin offshore of Oregon and northern California.
Bathymetry data from various sources, including newly released 2018 and 2019 multibeam data collected by the National Oceanic and Atmospheric Administration (NOAA) and the U.S. Geological Survey (USGS), were combined to create a composite 30-m resolution multibeam bathymetry surface of the southern Cascadia Margin offshore of Oregon and northern California.
Bathymetric map of offshore Washington
Bathymetric map of offshore Washington reveals seafloor features and submarine canyons.
Bathymetric map of offshore Washington reveals seafloor features and submarine canyons.
SuBastian’s manipulator jaw stabilizes GEOMAR’s glowing bubble box
ROV SuBastian’s manipulator jaw stabilizes GEOMAR’s glowing bubble box that is capturing high-resolution images of methane bubbles rising from the seafloor.
ROV SuBastian’s manipulator jaw stabilizes GEOMAR’s glowing bubble box that is capturing high-resolution images of methane bubbles rising from the seafloor.
Coral garden
This coral garden was discovered in the Stetson-Miami Deepwater HAPC during the 2019 Southeastern U.S. Deep-sea Exploration in an area that may mark the eastern extent of the Million Mounds region.
This coral garden was discovered in the Stetson-Miami Deepwater HAPC during the 2019 Southeastern U.S. Deep-sea Exploration in an area that may mark the eastern extent of the Million Mounds region.
Making a shear vane measurement on a gravity core
USGS scientist Janet Watt making a shear vane measurement on a gravity core to understand how the seafloor responds to earthquake shaking.
USGS scientist Janet Watt making a shear vane measurement on a gravity core to understand how the seafloor responds to earthquake shaking.