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Erosion and Subsidence of Hawaiian Islands and Seamounts |
| This diagram shows the variations of subsidence and erosion of the Hawaiian Islands and Emperor Seamounts. From this diagram it is evident that as an island is carried by the overriding plate farther from the hotspot they begin to subside and eventually are completely submerged. Volcanoe ... |
| Data Types: diagram |
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Active and Potentially Active Hawaiian Volcanoes |
| This spreadsheet shows 7 of the younger Hawaiian island volcanoes and data regarding their eruption type, year of last eruption and current eruption status. From this data set it can be concluded that as plate motion moves a volcano further from the hotspot eruption activity will eventually cease. |
| Data Types: spreadsheet |
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J2-366: Closing the Scoop Valve |
| To close the valve on a scooper sampler two of Jason manipulator arms are needed. In a spectacular hand-off performed by two of the Jason pilots, the red valve is closed in one swift movement. |
| Data Types: video excerpt |
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J2-368: Rock Sample on North Rift |
| In the north rift there are plenty examples of beautiful pillow basalts including lobate volcanic toes. Since these toes have a small diameter and have a thick glassy rim, they are very interesting for rock sampling. |
| Data Types: video excerpt |
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Scoop sample 1 at Ula Nui |
| During dive J2-307 of the FeMO2007 cruise this was one of the first samples taken from Loihi Seamount, deep on its southern rift where a low temperature hydrothermal site called Ula Nui was discovered during the FeMO2006 a year earlier. |
| Data Types: video excerpt |
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J2-368: Bacteria Trap Recovery 2 |
| Bacteria get trapped in this triple chamber sampler. After a year in Loihi's hot vents, it is rather evident that the iron-oxidation is strong and heavily promoted by the abundant microbes. |
| Data Types: video excerpt |
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Tropical Pacific CTD Data at 1 meter Intervals |
| Table representing CTD Data (Temperature, Salinity, Pressure, Oxygen, and Sound Velocity) taken at 1 meter depth intervals. This particular profile is taken close to Loihi Seamount, Hawaiian Islands. |
| Data Types: spreadsheet |
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Cross Section of the Internal Structure of the Mauna Kea Volcano |
| Schematic cross section for the internal structure of Mauna Kea volcano (Big Island of Hawaii) near the end of the subaerial shield stage based on results from HSDP2 drilling and submersible observations of Mauna Loa and Loihi volcanoes. |
| Data Types: diagram |
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Cultivation of novel marine Fe-oxidizing bacteria from the Loihi Seamount |
| Iron is one of the most abundant energy sources for lithotrophic organisms on Earth, yet very few cultures exist of Fe-oxidizing bacteria (FeOB) that can utilize Fe(II) as a sole energy source at circumneutral pH. Much of the work that has been done on FeOB is from freshwater habitats, s ... |
| Data Types: presentation |
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Variability in microbial mat communities from the pre- and post-eruption Loihi volcano |
| Loihi Seamount is an active submarine volcano that marks the southernmost extent of the Hawaiian hot-spot. Loihi rises over 3000 meters from the seafloor and summits nearly 1000 meters below sea level. Hydrothermal activity was discovered at Loihi in 1987, yielding diffuse vent effluent (Tma ... |
| Data Types: presentation |
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Looking Inside Loihi with Electrical Resistance Tomography |
In July 2006, we will carry out a completely novel study of the Loihi Seamount. Using Electrical Resistance Tomography (ERT), we will map the electrical conductivity structure of the interior of this active volcano.
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| Data Types: poster |
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Collecting a Rock Specimen near Pisces Peak on Loihi Seamount |
| A 1995 lava flow on Pisces Peak was sampled systematically in a grid to study microbial biodiversity. |
| Data Types: video excerpt |
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Exposure Experiments at Pisces Peak |
| Pisces Peak is used as a natural laboratory site for seawater exposure conditions without hydrothermal input. Some experiments have been exposed for more than 5 years. |
| Data Types: video excerpt |
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Validating an Exposure Experiment on Loihi Seamount |
| Jason 2 visited the site of a three-month exposure experiment on Loihi Seamount. We used Niskin bottles for these experiments and checked whether the bottles are open. |
| Data Types: video excerpt |
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Eager Scientists Getting to their Samples |
| Dive J2-365 was retrieved around 9 AM. All scientists scrambled to get their samples from the bioboxes to the lab in as short a time as possible. |
| Data Types: video excerpt |
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Loihi Seamount Bathymetry |
| This image shows the bathymetry of Loihi seamount. Loihi seamount is a feature in the Hawaiian-Emperor chain and is currently actively erupting. Loihi is thought to be the current location of the Hawaiian Hotspot. Loihi is a growing seamount and will likely grow to become an island. |
| Data Types: map |
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CARD-FISH approaches for characterizing endolithic rock-hosted microbial populations |
| In this keynote presentation for the First SBN Workshop Katrina Edwards discusses the process of basalt-weathering as promoted by endolithic microbes that colonize volcanic rocks at seamounts and on the flanks of mid-ocean ridge spreading centers at and below the seafloor. She hypothesize ... |
| Data Types: presentation |
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Tumult in Samoa |
| Is the Samoan volcanic chain the result of a hotspot or plume? Or not? Argued for decades, the discovery of volcanic activity at Vailulu'u seamount certainly supports the hotspot/plume model. Vailulu'u anchors the east end of the Samoan chain, much as Loihi anchors the Hawaiian chain's eas ... |
| Data Types: presentation |
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How Hydrology and Geochemistry at Seamounts Provide Habitats for Microbes |
| In this keynote presentation for the SEAMOUNTS'09 Workshop Dave Emerson explains why seamounts are dynamic refugia in a comparatively static deep ocean that may provide unique habitats that stimulate microbial growth, especially because of the roles seamounts and basaltic outcrops play i ... |
| Data Types: presentation |
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Damage to Elevator Floating Spheres during J2-366 Dive |
| The first elevator that was deployed with the J2-366 dive during the FeMO2008 cruise to Loihi Seamount, was severely damaged after the yellow "hard hat" glass floating spheres imploded. |
| Data Types: video excerpt |
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