10729 to 10740 of 13722 results
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Integrated chronostratigraphic calibration of the Oligocene-Miocene boundary at 24.0 +/- 0.1 MA from the CRP-2A drill core, Ross Sea, Antarctica
Read more of: Integrated chronostratigraphic calibration of the Oligocene-Miocene boundary at 24.0 +/- 0.1 MA from the CRP-2A drill core, Ross Sea, AntarcticaAn expanded Oligocene-Miocene boundary interval recovered in the Cape Roberts Project CRP-2A core from beneath the Ross Sea, Antarctica, has yielded a high-resolution integrated chrono stratigraphy that has, in turn, […]
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Successive geothermal, volcanic-hydrothermal and contact-metasomatic events in Cenozoic volcanic-arc basalts, South Shetland Islands, Antarctica
Read more of: Successive geothermal, volcanic-hydrothermal and contact-metasomatic events in Cenozoic volcanic-arc basalts, South Shetland Islands, AntarcticaHydrothermal alteration in volcanic arcs occurs in many settings and may involve magmatic, marine, lacustrine or groundwaters, driven by magmatic, tectonic or thermal events. King George Island, part of the […]
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Seasonality of reactive nitrogen oxides (NOy) at Neumayer Station, Antarctica
Read more of: Seasonality of reactive nitrogen oxides (NOy) at Neumayer Station, AntarcticaNO, NOy (total reactive nitrogen oxides), gaseous HNO3, and particulate nitrate (p-NO3−) were measured at Neumayer Station from February 1999 to January 2000. In addition, during February 1999, the NOy […]
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Ion-acoustic resistivity in plasmas with similar ion and electron temperatures
Read more of: Ion-acoustic resistivity in plasmas with similar ion and electron temperaturesAnalytical estimates of resistivity due to electrostatic current-driven ion-acoustic waves are compared with Vlasov simulation results. Particular attention is given to the case of similar ion and electron temperatures that […]
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Scaling in the space climatology of auroral indices: is SOC the only possible description?
Read more of: Scaling in the space climatology of auroral indices: is SOC the only possible description?The study of the robust features of the magnetosphere is motivated both by new “whole system” approaches, and by the idea of “space climate” as opposed to “space weather”. We […]
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Verification of the acoustic techniques used to identify Antarctic krill
Read more of: Verification of the acoustic techniques used to identify Antarctic krillAcoustic surveys to estimate krill biomass require that the sound backscattered by krill can be identified and distinguished from all other types of backscatter. Sampling acoustic targets with nets to […]
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The Southern Antarctic Circumpolar Current Front: physical and biological coupling at South Georgia
Read more of: The Southern Antarctic Circumpolar Current Front: physical and biological coupling at South GeorgiaThe coupling of physics and biology was examined along a 160 km long transect running out from the north coast of South Georgia Island and crossing the Southern Antarctic Circumpolar […]
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Ecological responses to recent climate change
Read more of: Ecological responses to recent climate changeThere is now ample evidence of the ecological impacts of recent climate change, from polar terrestrial to tropical marine environments. The responses of both flora and fauna span an array […]