Publications

11389 to 11400 of 14084 results

1. 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 […]

   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)

2. On the lifetime and extent of an auroral westward flow channel (AWFC) observed during a magnetospheric substorm

   A -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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3. Chronological study of the pre-Permian basement rocks of southern Patagonia

   Small 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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4. Antiquity of the Rio de la Plata craton in Tandilia, southern Buenos Aires province, Argentina

   Rb-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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5. IGCP 436 Pacific Gondwana margin – introduction

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6. Schistidium deceptionense, a new moss species from the South Shetland Islands, Antarctica

   Schistidium 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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7. Palaeo-ice streams, trough mouth fans and high-latitude continental slope sedimentation

   The 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 […]

   Read more of: Palaeo-ice streams, trough mouth fans and high-latitude continental slope sedimentation

8. Oxygen-isotope (delta18O) evidence of Holocene hydrological changes at Signy Island, maritime Antarctica

   A 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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9. Water mass modification over the continental shelf north of Ronne Ice Shelf, Antarctica

   We 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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10. 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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11. Observations of a nonmigrating component of the semidiurnal tide over Antarctica

    Data 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 […]

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12. Spatial and temporal variation of surface temperature on the Antarctic Peninsula and the limit of viability of ice shelves

    Mapping surface air temperature in the Antarctic Peninsula region is made unusually difficult by: the scarcity of meteorological stations, strong climatic gradients and recent rapid regional warming. We have compiled […]

    Read more of: Spatial and temporal variation of surface temperature on the Antarctic Peninsula and the limit of viability of ice shelves