7069 to 7080 of 14035 results
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Geochemistry of Palaeozoic–Mesozoic Pacific rim orogenic magmatism, Thurston Island area, West Antarctica
Read more of: Geochemistry of Palaeozoic–Mesozoic Pacific rim orogenic magmatism, Thurston Island area, West AntarcticaThurston Island, and the adjacent Eights Coast and Jones Mountains, record Pacific margin magmatism from Carboniferous to Late Cretaceous times. The igneous rocks form a uniformly calc-alkaline, high-alumina, dominantly metaluminous […]
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The depositional pattern and distribution of glacial-interglacial sequences on the Antarctic Peninsula Pacific margin
Read more of: The depositional pattern and distribution of glacial-interglacial sequences on the Antarctic Peninsula Pacific marginThe outer shelf on the Antarctic Peninsula Pacific margin south of 63°30′S is underlain by Pliocene-Pleistocene prograding sequences which have been produced mainly by the action of ice sheets grounded […]
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Ionospheric convection response to slow, strong variations in a northward interplanetary magnetic field: A case study for January 14, 1988
Read more of: Ionospheric convection response to slow, strong variations in a northward interplanetary magnetic field: A case study for January 14, 1988We analyze ionospheric convection patterns over the polar regions during the passage of an interplanetary magnetic cloud on January 14, 1988, when the interplanetary magnetic field (IMF) rotated slowly in […]
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Control of near-surface winds over an Antarctic ice shelf
Read more of: Control of near-surface winds over an Antarctic ice shelfSimple models are used to assess the factors controlling near-surface winds over an Antarctic ice shelf. Observations from Halley Station and an automatic weather station situated close to the coastal […]
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Seismic characteristics of an airgun fired over snow
Read more of: Seismic characteristics of an airgun fired over snowAn alternative seismic source was investigated in an experiment conducted near Rothera Station, Antarctic Peninsula. The source was an airgun fired above the snow surface. Comparison shots using explosive and […]
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Water as a limiting factor in the Antarctic terrestrial environment: a biogeographical synthesis
Read more of: Water as a limiting factor in the Antarctic terrestrial environment: a biogeographical synthesisThe question is posed: “what limits the presence, distribution, and abundance of life in Antarctica?” Traditionally, continental isolation has been considered to restrict the arrival of new species and extreme […]
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Photosynthetic response of the Antarctic moss Polytrichum alpestre Hoppe to low temperatures and freeze-thaw stress
Read more of: Photosynthetic response of the Antarctic moss Polytrichum alpestre Hoppe to low temperatures and freeze-thaw stressThe effect of low temperatures and freeze-thaw stress on photosynthetic carbon exchange in an Antarctic population of the turf-forming moss species Polytrichum alpestre Hoppe was investigated using infra-red gas analysis. […]
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Individuality in northern lapwing migration and its link to timing of breeding
Read more of: Individuality in northern lapwing migration and its link to timing of breedingWe tracked eight adult northern lapwings Vanellus vanellus (six females and two males) from a Dutch breeding colony by light-level geolocation year-round, three of them for multiple years. We show […]