6169 to 6180 of 13949 results
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Antarctic Peninsula continental magnesian andesites: indicators of ridge-trench interaction during Gondwana break-up
Read more of: Antarctic Peninsula continental magnesian andesites: indicators of ridge-trench interaction during Gondwana break-upSubduction of young, hot oceanic lithosphere and a major episode of lithospheric extension have been considered as key tectonomagmatic factors in the genesis of ‘Setouchi-type’ continental magnesian andesites. We present […]
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Modified Gulf of California model for South Georgia,north Scotia Ridge, and implications for the Rocas Verdes back-arc basin, southern Andes
Read more of: Modified Gulf of California model for South Georgia,north Scotia Ridge, and implications for the Rocas Verdes back-arc basin, southern AndesNew field mapping and an integrated trace element and Nd isotopic study have been undertaken on the Jurassic-Cretaceous Larsen Harbour Complex on the island of South Georgia, recognized as a […]
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A new bathymetry for the southeastern Filchner-Ronne Ice Shelf: implications for modern oceanographic processes and glacial history
Read more of: A new bathymetry for the southeastern Filchner-Ronne Ice Shelf: implications for modern oceanographic processes and glacial historyThe Filchner‐Ronne Ice Shelf, the ocean cavity beneath it and the Weddell Sea that bounds it, form an important part of the global climate system by modulating ice discharge from […]
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New magnetic anomaly map of the Antarctic
Read more of: New magnetic anomaly map of the AntarcticThe second generation Antarctic magnetic anomaly compilation (ADMAP‐2) for the region south of 60oS includes some 3.5 million line‐km of aeromagnetic and marine magnetic data that more than doubles the […]
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Spatial and temporal distributions of surface mass balance between Concordia and Vostok stations, Antarctica, from combined radar and ice core data: first results and detailed error analysis
Read more of: Spatial and temporal distributions of surface mass balance between Concordia and Vostok stations, Antarctica, from combined radar and ice core data: first results and detailed error analysisResults from ground-penetrating radar (GPR) measurements and shallow ice cores carried out during a scientific traverse between Dome Concordia (DC) and Vostok stations are presented in order to infer both […]
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Aerobiology and colonization in Antarctica — the BIOTAS Programme
Read more of: Aerobiology and colonization in Antarctica — the BIOTAS ProgrammeLittle is known about the aerial transport of microbes, plants and animals into and between Antarctic terrestrial and freshwater habitats. Isolation by the circumpolar Southern Ocean restricts propagules to three […]
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Reactions on sulphuric acid aerosol and on polar stratospheric clouds in the Antarctic stratosphere
Read more of: Reactions on sulphuric acid aerosol and on polar stratospheric clouds in the Antarctic stratosphereHeterogeneous chemistry producing active chlorine has been identified as crucial to Antarctic ozone depletion. Most attention has focussed on reactions on solid polar stratospheric cloud (PSC) particles, although there is […]
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Chick growth and survival in gentoo penguins (Pygoscelis papua): effect of hatching asynchrony and variation in food supply
Read more of: Chick growth and survival in gentoo penguins (Pygoscelis papua): effect of hatching asynchrony and variation in food supplyIn the gentoo penguin, Pygoscelis papua, we examined the effects of intra-clutch egg size differences and hatching asynchrony on differential chick growth and survival (including post-fledging survival), in five years […]