5029 to 5040 of 13722 results
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Rb-Sr Geochronology of the Region Between The Antarctic Peninsula and The Transantarctic Mountains: Haag Nunataks and Mesozoic Granitoids
Read more of: Rb-Sr Geochronology of the Region Between The Antarctic Peninsula and The Transantarctic Mountains: Haag Nunataks and Mesozoic GranitoidsSeventy‐two new Rb‐Sr whole‐rock analyses are reported for Haag Nunataks, Mount Woollard, the Whitmore Mountains, the Pirrit and Nash hills, and Pagano Nunatak. For Haag Nunataks, three isochrons for gneisses […]
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Structural evolution of the magmatic arc in northern Palmer Land, Antarctic Peninsula
Read more of: Structural evolution of the magmatic arc in northern Palmer Land, Antarctic PeninsulaIn northern Palmer Land, Antarctic Peninsula, the magmatic arc has developed by the interaction of compressional and extensional tectonics. Periods of magmatism and arc compression in the Early Jurassic and […]
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Non-Maxwellian ion velocity distributions observed using EISCAT
Read more of: Non-Maxwellian ion velocity distributions observed using EISCATRecent observations from the EISCAT incoherent scatter radar have revealed bursts of poleward ion flow in the dayside auroral ionosphere which are consistent with the ionospheric signature of flux transfer […]
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Description and quantification of field attack rates by predatory mites: An example using an electrophoresis method with a species of Antarctic mite
Read more of: Description and quantification of field attack rates by predatory mites: An example using an electrophoresis method with a species of Antarctic mitePolyacrylamide gel electrophoresis and subsequent esterase staining provide an alternative to immunological methods for investigating the diet of microarthropods which cannot be observed directly. Attack rates in field populations of […]
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Influence of Introduced Reindeer on the Vegetation of South Georgia: Results From a Long-Term Exclusion Experiment
Read more of: Influence of Introduced Reindeer on the Vegetation of South Georgia: Results From a Long-Term Exclusion Experiment(1) The sub-Antarctic island of South Georgia has a species-poor vascular flora that is not adapted to grazing by vertebrates. Consequently, reindeer (Rangifer tarandus L.) introduced to different areas of […]