| > Oceanography > Issues > Archive > Volume 23, Issue 1 |
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print resolution | screen resolution Seven seamounts formed by the Louisville hotspot in the South Pacific that were surveyed during the AMAT02 Expedition in 2006 (Peter Lonsdale, Scripps Institution of Oceanography, chief scientist) using R/V Roger Revelle. As part of the Integrated Ocean Drilling Program (IODP), this site survey provided key data to prepare for IODP Expedition 330 (December 2010) that aims to drill four seamounts in the Louisville seamount trail. Using paleomagnetic and geochronological data from the drilled basalts, this project attempts to answer the question of whether the deep Hawaiian and Louisville mantle plumes, the two longest-lived primary hotspot systems in the Pacific, have moved in concert or independently. Credit: Cover image of Oceanography 23(1), courtesy of Anthony A.P. Koppers and Chris Romsos, Oregon State University |
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print resolution | screen resolution Seven seamounts formed by the Louisville hotspot in the South Pacific that were surveyed during the AMAT02 Expedition in 2006 (Peter Lonsdale, Scripps Institution of Oceanography, chief scientist) using R/V Roger Revelle. As part of the Integrated Ocean Drilling Program (IODP), this site survey provided key data to prepare for IODP Expedition 330 (December 2010) that aims to drill four seamounts in the Louisville seamount trail. Using paleomagnetic and geochronological data from the drilled basalts, this project attempts to answer the question of whether the deep Hawaiian and Louisville mantle plumes, the two longest-lived primary hotspot systems in the Pacific, have moved in concert or independently. Credit: Cover image of Oceanography 23(1), courtesy of Anthony A.P. Koppers and Chris Romsos, Oregon State University |
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print resolution (8.9 mb pdf) | screen resolution (560 kb pdf) Map of Featured Seamount Locations |
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print resolution | screen resolution An aggregation of orange roughy (Hoplostethus atlanticus) at 890-m water depth on the summit of Morgue. This small seamount had been heavily fished, but in 2001 was closed to trawling. Orange roughy therefore find a refuge from exploitation on this seamount. The image is taken 3 m above the seafloor. Each fish is about 35-cm long. Photo courtesy of NIWA |
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print resolution | screen resolution Ceriantharid tube anemone on Corner Seamount (Kukenthal peak). Frame-grabbed images acquired from high-definition video taken by the remotely operated vehicle Hercules imaging systems—an Insite Pacific Zeus HDTV camera (resolution 1035i) operated by the Institute For Exploration, University of Rhode Island (DASS Scientific Party). |
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print resolution | screen resolution Deep stony corals take a variety of forms and colors, with about 650 species known to science and more discovered every year. Lophelia pertusa is a constructional scleractinian coral, capable of forming bioherms that are kilometers in length and breadth. The image depicts a Lophelia thicket in the Gulf of Mexico. Lophelia grow as shallow as 40-m depth in cold Atlantic fjords, but occurrences in the North Atlantic are typically at 300–800-m depth. Photo credit: Lophelia II 2009 Expedition: Reefs, Rigs, and Wrecks |
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print resolution | screen resolution A billowing sulfur-rich particle plume during eruptive activity at NW Rota-1 Volcano. |
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print resolution | screen resolution Dense communities of shrimp and limpets live nearby the erupting NW Rota-1 Volcano. |