Videos
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See the orange bacterial mats of NW Eifuku volcano.
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Around some of the sea-floor hot springs at NW Eifuku volcano.
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See an extraordinary biological community of hydrothermal mussels at NW Eifuku volcano.
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The hydrothermal mussels at NW Eifuku volcano Cliffhouse vent.
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The bubbles of the Champagne hydrothermal system.
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The central cone at East Diamante volcano.
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The "Aquarium" site at East Diamante volcano.
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View the 5 Towers hydrothermal vent.
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See chimneys made of sulfide minerals at the Black Forest.
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Sea life around the hydrothermal vents at the East Diamante volcano.
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Amazing scene of billowing smoke rising from a small crater.
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The incredible vista of Brimstone Pit.
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A common seafloor feature in the study area was an occasional dune or hill.
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A example of a vertical wall capped by a thin layer of manganese phosphorite rock.
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An example of vertical topography at Sponge Cliff.
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A hard layer of manganese phosphorite pavement a common type of sea floor in the Estuaries to the Abyss.
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Bathynectes longspina crabs are frequently seen on the coral mounds.
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The extraordinary biological diversity of the Gulf of Mexico.
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Using rocks to charcterize Davidson Seamount.
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Video of deep-sea life on the Galapagos Rift.
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Monitor underwater footage
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Monitor turret video
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The beautiful and complex habitat of the Lophelia coral banks.
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Ice morphology.
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Ascent up the wall of Oceanographer Canyon
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Reef balls
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Images
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Geologic Features
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White smokers at the Champagne Vent Site. (HR)
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White chimneys at Champagne vent site, NW Eifuku volcano. (HR)
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Close-up of bubbles at the Champagne Vent site. (HR)
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The steep slope of the East Diamante volcano is seen in this image from the upper left to the lower right-hand side. (HR)
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A piece of one of the chimney spires, cut in half and lined by a copper-rich mineral called chalcopyrite. (HR)
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Three small (~30 cm tall) actively venting spires sit atop one of the chimneys in the Black Forest vent field. (HR)
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This small, ice- cream-cone-shaped chimney is located near the base of Five Towers.
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Active smoker chimneys precipitating iron, copper and zinc sulfides from 230ºC fluid. (HR)
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Interlayered basaltic (dark) and felsic (light) ash layers in the east wall of West Rota caldera. (HR)
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A contact point between the lower basaltic and upper felsic ash units in the wall of the West Rota caldera. (HR)
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Columnar jointing in a pumice boulder on the top of West Rota volcano. (HR)
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Sulfur and ash totally obscure the outcrop from our view.
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Sulfur balls litter the sea floor near Brimstone Pit. (HR)
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Giant smoky plume discovered near the summit of NW Rota 1 volcano. (HR)
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A hydrothermal vent site near the summit of NW Rota 1 volcano.
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Rock from southeastern slope of the Cape Fear Diapir.
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A mud chimney encountered during Dive 3914.
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Authigenic carbonate rock collected on the Blake Ridge Diapir.
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Various rocks collected during the Charleston Bump expedition.
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Large, table-sized slabs of rock.
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Vertical cliffs with alternating layers of carbonate rock.
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Manganese- phosphorite rock collected by the submersible at 1,827 ft depth.
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Alderdice Bank Basalt blocks at the base of a spires with a trumpetfish in the foreground. (HR)
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Alderdice Bank basalt spire. (HR)
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This is a piece of 80 million year old basalt rock collected from the base of Alderdice Bank. (HR)
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Comparing volcanic rocks to terrestrial rocks.
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Basalt "columns".
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Fractured pillow basalts.
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Lava tubes.
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Active chimneys on ridgetop. (HR)
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Sulfide mound Magic Mountain. (HR)
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Active chimneys on ridgetop. (HR)
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Pillow lavas on ancient seafloor. (HR)
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Sulfide chimney piece from Mystic Mound, Explorer Ridge. (HR)
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Metallic sulfide ore sample. (HR)
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Chimney sample embedded with "fossilized" tubeworms. (HR)
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The top of a huge chimney with marker 72. (HR)
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Hot fluid sampling at a black smoker vent. (HR)
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Buccionid whelks and other invertebrates. (HR)
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Water spewing from "Cleopatra's Needle." (HR)
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Two chimneys at Majestique vent field. (HR)
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Anhydrite and sulfide chimney at Majestique vent field. (HR)
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Tubeworms covering a chimney named Zooarium. (HR)
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Zooarium chimney. (HR)
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Pillow lavas and breccia. (HR)
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The ROPOS claw positioning a bacteria trap. (HR)
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Sampling an inactive chimney. (HR)
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Each rock is photographed with a scale before the invertebrates are removed from it.
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A large live rock collected by the Johnson-Sea-Link II.
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Atlantis
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Wreckfish and rocky outcrop
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Wreckfish around cave
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Artist M.J. Brooks' sketches
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Muddy sediment banks |
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Savannah Scarp rock sample |
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Savannah Scarp rock sample |
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Savannah Scarp rock sample |
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Phosphorite pavement
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Trying to grab a rock
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Seafloor community
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Effect of bottom trawling
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Abyssal sea floor
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Habitat
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April 9
The top of one of the central domes in Maug caldera. (HR)
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April 5
A pinnacle rises to 167 meters below the surface. (HR)
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April 5
Stunning image of the Aquarium site. (HR)
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Distribution of clam patches on the seafloor.
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A field of mussels and the bucket of rabbit chow.
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The sea bottom beneath the Gulf Stream is highly varied.
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Sponges such as bryozoans and tunicates are absent from the exposed surface, yet dominate on the sheltered side. (HR)
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Charleston Bump food chain
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A Diagram showing the flow of energy, as food, through an idealized coral reef model.
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A photograph of the mysterious basalt outcrop on Alderdice Bank.
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A picture of authigenic carbonate ridges.
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Thick clouds of fish around one of the basalt spires at Alderdice Bank.
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A coral and sponge garden
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Over 200 species of coral reef fish occur in the northwestern Gulf of Mexico.
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Deep Reef Fish Diversity Legend.
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Marine invertebrates in the deepwater habitat. (HR)
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Brittlestars often aggregate on the soft substrate.
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The shallow pinnacles at Cordell Bank.
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Large pink sea fan
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Fish over wreck site
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turret underwater
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Manta swimming over wreck
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Sorting through sargassum collected during a neuston net tow.
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A closeup of a small mass of sargassum weed.
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Sargassum samples being sifted through.
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Lines of sargassum can stretch for miles along the surface.
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Amalgam of amphipods.
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Elephant Island.
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Tabular icebergs. (HR)
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Bottom of an ice floe.
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Bottom of ice floe.
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Underwater ice morphology.
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A channel of water between ice keels. (HR)
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Artificial reef structures
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Speckled hind entering a reef ball
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Marine Plants
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Seaweeds are pressed on herbarium sheets for further study. (HR)
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Preserving a specimen in silicagel for molecular examination. (HR)
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Deepwater seaweeds freshly collected. (HR)
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A herbarium sheet with red algae. (HR)
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Many seaweeds look superficially similar. (HR)
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Diagnostic morphological features are viewed with light microscopy. (HR)
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Bacterial Mats
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April 12
The fluffy yellow and orange microbial mats seen at the Yellow Top venting site. (HR)
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April 12
These microbial mats are similar in composition to those seen at the Yellow Top Vent site. (HR)
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April 12
Yellow and orange microbial mats form a bioreactor mound with a thin crust and small chimneys on top. (HR)
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April 12
Large amounts of biomass feed on white flocculent mats. (HR)
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April 8
Patches of encrusting red and green algae lie beneath filamentous bacterial mats on rock surfaces. (HR)
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April 5
Chemosynthetic microbial mats cover red algae and coral, which are photosynthetic. (HR)
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Bacterial mat at Blake Ridge Diapir.
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Orange bacterial mat
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Beggiatoa bacterial mat
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Bacterial mat
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Bacterial mat near methane seep
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Hydrates
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Outcrop of white gas hydrate
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Shrimp crawling over a gas hydrate
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Marine worms in gas hydrate
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