10381 to 10392 of 13961 results
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Feeding, metabolism and growth in the Antarctic limpet, Nacella concinna (Strebel 1908)
Read more of: Feeding, metabolism and growth in the Antarctic limpet, Nacella concinna (Strebel 1908)Post-prandial increases in metabolism, the specific dynamic action of feeding (SDA), were evaluated in the Antarctic limpet Nacella concinna. O2 consumption rose to a peak value 2.3 times higher than pre-feeding […]
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Geochemical tracing of Pacific-to-Atlantic upper-mantle flow through the Drake passage
Read more of: Geochemical tracing of Pacific-to-Atlantic upper-mantle flow through the Drake passageThe Earth’s convecting upper mantle can be viewed as comprising three main reservoirs, beneath the Pacific, Atlantic and Indian oceans. Because of the uneven global distribution and migration of ridges […]
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Co-variation of crenarchaeol and branched GDGTs in globally-distributed marine and freshwater sedimentary archives
Read more of: Co-variation of crenarchaeol and branched GDGTs in globally-distributed marine and freshwater sedimentary archivesTwo major types of glycerol dialkyl glycerol tetraethers (GDGTs) are commonly used in paleoecological and paleoclimatological reconstructions: isoprenoidal and branched GDGTs. In aquatic environments, it was originally assumed that isoprenoidal […]
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On the winding of auroral spirals: Interhemispheric observations and Hallinan’s theory revisited
Read more of: On the winding of auroral spirals: Interhemispheric observations and Hallinan’s theory revisitedAuroral spirals are the largest vortex structures that appear in auroral arcs. Their diameters vary from tens to hundreds of kilometers. We have collected an all-sky camera data set of […]
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Age and origin of coeval TTG, I- and S-type granites in the Famatinian belt of NW Argentina
Read more of: Age and origin of coeval TTG, I- and S-type granites in the Famatinian belt of NW ArgentinaThree granitoid types are recognised in the Famatinian magmatic belt of NW Argentina, based on lithology and new geochemical data: (a) a minor trondhjemite–tonalite–granodiorite (TTG) group, (b) a metaluminous I-type […]
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Using tephrochronology to date temperate ice: correlation between ice tephras on Livingston Island and eruptive units on Deception Island volcano (South Shetland Islands, Antarctica)
Read more of: Using tephrochronology to date temperate ice: correlation between ice tephras on Livingston Island and eruptive units on Deception Island volcano (South Shetland Islands, Antarctica)Tephra layers are interstratified in the ice caps of the South Shetland Islands. Although previously poorly investigated, they are potential targets for the application of tephrochronology and, hence, may provide […]
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The Northern Black Swift: Migration path and wintering area revealed
Read more of: The Northern Black Swift: Migration path and wintering area revealedWinter ranges have been identified for most neotropical migrant bird species, those that spend the winter months in Central and South America and summer months in North America. Published accounts […]
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The consolidation and bond strength of rafted sea ice
Read more of: The consolidation and bond strength of rafted sea iceThe consolidation and bond strength of rafted sea ice were investigated through a series of experiments undertaken in the Ice Physics Laboratory at the UCL. To simulate a section of […]
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