Ross Sea

Results: 250



#Item
41Physical geography / Geology of Australia / Petroleum / Reflection seismology / Passive margin / Continental shelf / Sedimentary rock / Paleozoic / Geology of the Falkland Islands / Geology / Plate tectonics / Historical geology

across the shelf (see Dunbar, Dehn, and Leventer, Antarctic this issue). This distribution was first noted by Truesdale and Kellogg (1969), who attributed it to less extensive summer sea ice cover in the western Ross Sea

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Language: English - Date: 2011-05-06 04:12:07
42Biological oceanography / Diatom / Planktology / Mooring / Biogenic silica / Antarctica / Sediment / Physical geography / Earth / Oceanography

bloom. Thus, the annual mass balances of both biogenic silica and organic carbon in the water column of the Ross Sea are likely to be considerably more complex, and the spatially integrated production rates higher, than

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Language: English - Date: 2011-05-06 21:05:42
43Physical oceanography / Antarctic region / Filchner-Ronne Ice Shelf / Oceanography / Weddell Gyre / Ross Ice Shelf / McMurdo Sound / Ice shelf / Ross Sea / Physical geography / Geography of Antarctica / Oceanic gyres

rafted debris in the shallower core is evident from the radiographs. Because the supply of ice-rafted debris to the seabed should be independent of bottom topography, the variation in abundance of ice-rafted debris betwe

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Language: English - Date: 2011-05-06 05:02:23
44Extreme points of Earth / McMurdo Sound / McMurdo Dry Valleys / Antarctica / Sediment / Ross Sea / Cape Royds / Cape Barne / Physical geography / Geography of Antarctica / Antarctic region

Just before the eruption, lava was observed to rise rapidly in the Active Vent and, as it reached the rim, the explosion occurred. After the eruption, there was a drop in the general level of the lava lake, which returne

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Language: English - Date: 2011-05-06 03:37:26
45Sedimentology / Physical oceanography / Sediments / Climate history / Continental shelf / Fisheries / Sea level / Hemipelagic / Sediment / Geology / Earth / Physical geography

glaciation, subtracting the eustatic sea level drop due to glaciation, and then performing a density calculation. Recent glacial reconstructions in Ross Sea predict greater grounded ice thicknesses than would be determin

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Language: English - Date: 2011-05-06 17:21:02
46Ice shelf / Ice rise / Ross Ice Shelf / Ice sheet / Sea ice / Ice / West Antarctic Ice Sheet / Glacier / Polar ice packs / Glaciology / Physical geography / Water ice

ice is the only horizontal boundary observed in the six meters of sea ice. This dramatic change must be related to a sudden and significant change in growth conditions at the base of the shelf. The most probable cause wa

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Language: English - Date: 2011-05-06 03:39:25
47Mammals of Australia / Antarctic region / Weddell seal / Pinnipeds / British Antarctic Territory / McMurdo Sound / Hauling-out / Weddell / Antarctica / Physical geography / True seals / Megafauna

surface a moribund squid, Psychroteuthis glacialis. It was taken from the seal, and to our knowledge, it is the first intact squid collected in McMurdo Sound and the first record of this species within the Ross Sea. The

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Language: English - Date: 2011-05-06 07:01:10
48Viscosity / Water / Oilfield terminology / Petroleum engineering / Viscometer / Plankton / Starfish / Antarctica / Odontaster / Physical geography / Fluid dynamics / Measuring instruments

Spatial and temporal variability within the Ross Sea were clearly documented, but it remains uncertain what processes are important in the control of this distribution. We are currently investigating the factors controll

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Language: English - Date: 2011-05-06 19:40:28
49Fjord / Glaciology / Lakes / Continental shelf / Antarctica / McMurdo Sound / Glacier / Ross Sea / Physical geography / Glacial landforms / Antarctic region

ships attempting passage to and from the southern Ross Sea. The Pennell and Ross Passage polynyas are best developed in spring and autumn, but also display intermittently lower ice concentrations during winter. They appe

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Language: English - Date: 2011-05-06 16:30:37
50Sea ice / Arctic Ocean / Extreme points of Earth / Climatology / McMurdo Sound / Polar ice packs / Ross Ice Shelf / Antarctica / Polynya / Physical geography / Earth / Glaciology

tion there. Our results indicate that nitrifier activity may also be an important pathway of carbon dioxide fixation in the water under annual sea ice at certain times of the year. Carbon dioxide fixed by nitrifiers in t

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Language: English - Date: 2011-05-06 18:03:35
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