Tom Lorensen, USGS Physical Scientist, uses an ultraviolet light to examine mineral samples aboard R/V Thomas G. Thompson.
Multimedia
Images
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.
Videos
Ferromanganese Nodules—2021 North Atlantic Stepping Stones Expedition
During a recent dive on the New England Seamount chain off the North Atlantic coast, researchers aboard the NOAA Ocean Exploration Expedition, North Atlantic Stepping Stones, discovered a marine geological feature known as a ferromanganese (Fe-Mn) nodule field in the saddle between two peaks of Gosnold Seamount.
During a recent dive on the New England Seamount chain off the North Atlantic coast, researchers aboard the NOAA Ocean Exploration Expedition, North Atlantic Stepping Stones, discovered a marine geological feature known as a ferromanganese (Fe-Mn) nodule field in the saddle between two peaks of Gosnold Seamount.
SeaBOSS off Nantucket, MA
SEABed Observation and Sampling System (SeaBOSS) operations were conducted north of Nantucket, MA as part of an agreement with Massachusetts Coastal Zone Management to map the geology of Massachusetts waters .
SEABed Observation and Sampling System (SeaBOSS) operations were conducted north of Nantucket, MA as part of an agreement with Massachusetts Coastal Zone Management to map the geology of Massachusetts waters .
SeaBOSS Deck Work Outtake
SeaBOSS operations were conducted north of Nantucket, MA as part of an agreement with the Massachusetts Office of Coastal Zone Management to map the geology of MA waters.
SeaBOSS operations were conducted north of Nantucket, MA as part of an agreement with the Massachusetts Office of Coastal Zone Management to map the geology of MA waters.
Hatching an Engineer
What does it take to become an ocean engineer? Here is the path that USGS Gerry Hatcher took.
What does it take to become an ocean engineer? Here is the path that USGS Gerry Hatcher took.
PubTalk 6/2014 — Into the Abyss
Living Without Light
by Nancy Prouty, Research Oceanographer
Living Without Light
by Nancy Prouty, Research Oceanographer
PubTalk 6/2012 — Scanning the Seafloor with Sound
--modern sonar reveals hidden hazards and resources
by David Finlayson, Marine Geologist
--modern sonar reveals hidden hazards and resources
by David Finlayson, Marine Geologist