7693 to 7704 of 14011 results
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Early Palaeozoic rather than Neoproterozoic volcanism and rifting within the Transantarctic Mountains
Read more of: Early Palaeozoic rather than Neoproterozoic volcanism and rifting within the Transantarctic MountainsNew U-Pb dating of zircons separated from felsic volcanic rocks of the Patuxent and Gambacorta formations from the Pensacola Mountains in the Transantarctic Mountains, Antarctica, yields earliest Ordovician ages of […]
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Tardigrades from Signy Island, South Orkney Islands, with particular reference to freshwater species
Read more of: Tardigrades from Signy Island, South Orkney Islands, with particular reference to freshwater speciesSeventeen species of Tardigrada from lakes and catchments on Signy Island, South Orkney Islands, are described. Two species, Echiniscus punctus and Isohypsibius laevis are new to science, and two, Oreella […]
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Deep marine slide and channel deposits from the Jurassic-Cretaceous Fossil Bluff Group, Alexander Island, Antarctica
Read more of: Deep marine slide and channel deposits from the Jurassic-Cretaceous Fossil Bluff Group, Alexander Island, AntarcticaThe Fossil Bluff Grqup (FBG: ?Bathpnian-Albian) is the fill of a forearc basin which lay between the Antarctic Peninsula volcanic arc and an accretionary complex (LeMay Group) to the west […]
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Comparative anatomy of the cardiac foramen ovale in the Pinnipedia
Read more of: Comparative anatomy of the cardiac foramen ovale in the PinnipediaThe structure of the cardiac foramen ovale from eight genera of pinnipeds was studied using the scanning electron microscope. Specimens were obtained from fetuses or neonates of the Californian sea […]
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The use of spread F and sporadic E observations in interplanetary scintillation forecasts of geomagnetic activity
Read more of: The use of spread F and sporadic E observations in interplanetary scintillation forecasts of geomagnetic activityPrevious work has shown that interplanetary scintillation (IPS) observations produce a poor forecast for geomagnetic activity. An explanation of some of the problems encountered would be the existence of an […]
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The BEAN experiment – An EISCAT study of ion temperature anisotropies
Read more of: The BEAN experiment – An EISCAT study of ion temperature anisotropiesResults are presented from a novel EISCAT special programme, SP-UK-BEAN, intended for the direct measurement of the ion temperature anisotropy during ion frictional heating events in the high-latitude F-region. The […]
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Ionospheric plasma convection in the southern hemisphere
Read more of: Ionospheric plasma convection in the southern hemisphereThe first ionospheric plasma convection maps ordered by the y- and z-components of the IMF using only data from the southern hemisphere are presented. These patterns are determined from line-of-sight […]
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On the Antarctic Peninsula batholith
Read more of: On the Antarctic Peninsula batholithThe plutonic rocks of the Antarctic Peninsula magmatic arc form one of the major batholiths of the circum-Pacific rim. The Antarctic Peninsula batholith is a 1350 km long by < […]
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The dynamics of heterotrophic nanoflagellates and bacterioplankton in a large ultra-oligotrophic Antarctic lake
Read more of: The dynamics of heterotrophic nanoflagellates and bacterioplankton in a large ultra-oligotrophic Antarctic lakeThe abundance of both heterotrophic nanoflagellates (HNAN) and bacterioplankton in a large (9km2) ultraoligotrophic Antarctic lake (Crooked Lake) were investigated from December 1992 until November 1993. HNAN abundance peaked in […]
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Relict subglacial deltas on the Antarctic Peninsula outer shelf
Read more of: Relict subglacial deltas on the Antarctic Peninsula outer shelfThe first deep-tow boomer survey on the Antarctic continental margin has revealed relict subglacial deltas on the outer continental shelf off the Antarctic Peninsula. Progradation of subglacial deltas is thought […]