6541 to 6552 of 13980 results
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Sources, variability and fate of freshwater in the Bellingshausen Sea, AntarcticaSources, variability and fate of freshwater in the Bellingshausen Sea, Antarctica
Read more of: Sources, variability and fate of freshwater in the Bellingshausen Sea, AntarcticaSources, variability and fate of freshwater in the Bellingshausen Sea, AntarcticaDuring the second half of the twentieth century, the Antarctic Peninsula was subjected to a rapid increase in air temperatures. This was accompanied by a reduction in sea ice extent, […]
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The Southern Ocean
Read more of: The Southern OceanThe Southern Ocean is the expanse of ocean encircling the Antarctic continent. Often it is defined as all ocean areas south of 35°S (e.g., Chelton et al. 1990) or 40°S […]
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Episodicity within a mid-Cretaceous magmatic flare-up in West Antarctica: U-Pb ages of the Lassiter Coast intrusive suite, Antarctic Peninsula and correlations along the Gondwana margin
Read more of: Episodicity within a mid-Cretaceous magmatic flare-up in West Antarctica: U-Pb ages of the Lassiter Coast intrusive suite, Antarctic Peninsula and correlations along the Gondwana marginLong-lived continental margin arcs are characterized by episodes of large-volume magmatism (or flare-ups) that can persist for ∼30 m.y. before steady-state arc conditions resume. Flare-up events are characterized by the […]
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Survival of sub-zero temperatures by two South Georgian beetles (Coleoptera, Perimylopidae)
Read more of: Survival of sub-zero temperatures by two South Georgian beetles (Coleoptera, Perimylopidae)The ability of adults and larvae of two species of perimylopid beetles (Hydromedion sparsutum, Perimylops antarcticus) to survive sub-zero temperatures was studied at Husvik, South Georgia in summer during October–December […]
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Long-term population studies of seabirds
Read more of: Long-term population studies of seabirdsLong-term studies of seabirds, some now 30–40 years old, have begun to reveal significant age-related changes in the survival and reproduction o f these long-lived animals. Evidence for density-dependent regulation […]
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Dinoflagellate cysts from the Marambio Group (Upper Cretaceous) of Humps Island
Read more of: Dinoflagellate cysts from the Marambio Group (Upper Cretaceous) of Humps IslandThirty samples from two sections on south-western Humps Island, James Ross Basin, northern Antarctic Peninsula, contain moderately diverse dinoflagellate cyst assemblages deposited in shallow shelf, open marine conditions. Assemblages contain […]