Viruses in Antarctic ecosystems
This review seeks to highlight the potential importance of viruses in Antarctic ecosystems and describe the limited scope of Antarctic virus studies to date, including studies of marine, terrestrial and […]
11341 to 11352 of 14037 results
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Read more of: Viruses in Antarctic ecosystems
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Bacterioplankton community structure in a maritime Antarctic oligotrophic lake during a period of holomixis, as determined by denaturing gradient gel electrophoresis (DGGE) and fluorescence in situ hybridization (FISH)
Read more of: Bacterioplankton community structure in a maritime Antarctic oligotrophic lake during a period of holomixis, as determined by denaturing gradient gel electrophoresis (DGGE) and fluorescence in situ hybridization (FISH)The bacterioplankton community structure in Moss Lake, a maritime Antarctic oligotrophic lake, was determined with vertical depth in the water column, during the ice-free period on Signy Island in the […]
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On the lifetime and extent of an auroral westward flow channel (AWFC) observed during a magnetospheric substorm
Read more of: On the lifetime and extent of an auroral westward flow channel (AWFC) observed during a magnetospheric substormA -190-nT negative bay in the geomagnetic X component measured at Macquarie Island (-65degreesA) showed that an ionospheric substorm occurred during 09:58 to 11:10 UT on 27 February 2000. Signatures […]
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Chronological study of the pre-Permian basement rocks of southern Patagonia
Read more of: Chronological study of the pre-Permian basement rocks of southern PatagoniaSmall outcrops of the basement of the Deseado Massif, consisting of weathered, altered granitoids and their metasedimentary host rocks, were dated by the U-Pb zircon method using thermal ionization mass […]
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Antiquity of the Rio de la Plata craton in Tandilia, southern Buenos Aires province, Argentina
Read more of: Antiquity of the Rio de la Plata craton in Tandilia, southern Buenos Aires province, ArgentinaRb-Sr and Sm-Nd whole-rock data for granitoids and orthogneisses from the western part of the Sierras Septentrionales of the southern Buenos Aires province yield an errorchron of 2009 +/- 71 […]
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Schistidium deceptionense, a new moss species from the South Shetland Islands, Antarctica
Read more of: Schistidium deceptionense, a new moss species from the South Shetland Islands, AntarcticaSchistidium is the richest moss genus in the Antarctic consisting of twelve species, one of which, S. deceptionense Ochyra, Bednarek-Ochyra, & Lewis Smith, is here described as new to science […]
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Palaeo-ice streams, trough mouth fans and high-latitude continental slope sedimentation
Read more of: Palaeo-ice streams, trough mouth fans and high-latitude continental slope sedimentationThe classical model of trough mouth fan (TMF) formation was developed in the Polar North Atlantic to explain large submarine fans situated in front of bathymetric troughs that extend across […]
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Oxygen-isotope (delta18O) evidence of Holocene hydrological changes at Signy Island, maritime Antarctica
Read more of: Oxygen-isotope (delta18O) evidence of Holocene hydrological changes at Signy Island, maritime AntarcticaA record of Holocene hydrological changes has been produced from variations in oxygen-isotope composition (delta(18)O) preserved in freshwater lake sediments from maritime Antarctica. Small amounts (
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Water mass modification over the continental shelf north of Ronne Ice Shelf, Antarctica
Read more of: Water mass modification over the continental shelf north of Ronne Ice Shelf, AntarcticaWe use new data from the southern Weddell Sea continental shelf to describe water mass conversion processes in a formation region for cold and dense precursors of Antarctic Bottom Water. […]
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Subsurface crevasse formation in glaciers and ice sheets
Read more of: Subsurface crevasse formation in glaciers and ice sheets[1] Crevasses form in response to tensile stresses in glaciers and ice sheets. It has been widely assumed that crevasses initiate at, or near, the surface of the ice, from […]
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Observations of a nonmigrating component of the semidiurnal tide over Antarctica
Read more of: Observations of a nonmigrating component of the semidiurnal tide over AntarcticaData obtained from the MF radars situated at Davis, Syowa and Rothera in Antarctica are used to detect a nonmigrating component of the semidiurnal tide in the mesosphere and lower […]