4537 to 4548 of 14011 results
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K-Ar geochronology of the South Shetland Islands, Lesser Antarctica: apparent lateral migration of Jurassic to Quaternary island arc volcanism
Read more of: K-Ar geochronology of the South Shetland Islands, Lesser Antarctica: apparent lateral migration of Jurassic to Quaternary island arc volcanismApproximately 70 K-Ar whole-rock ages for low-K tholeiitic and andesitic volcanic and intrusive rocks from the South Shetland Islands, Antarctica, including about 50 not previously published, are reviewed. Activity mainly […]
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Observations and models to support the first Marine Ecosystem Assessment for the Southern Ocean (MEASO)
Read more of: Observations and models to support the first Marine Ecosystem Assessment for the Southern Ocean (MEASO)Assessments of the status and trends of habitats, species and ecosystems are needed for effective ecosystem-based management in marine ecosystems. Knowledge on imminent ecosystem changes (climate change impacts) set in […]
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Spatial and temporal dynamics of Antarctic shallow soft-bottom benthic communities: ecological drivers under climate change
Read more of: Spatial and temporal dynamics of Antarctic shallow soft-bottom benthic communities: ecological drivers under climate changeBackground: Marine soft sediments are some of the most widespread habitats in the ocean, playing a vital role in global carbon cycling, but are amongst the least studied with regard […]
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A validation of ERA5 reanalysis data in the southern Antarctic Peninsula – Ellsworth Land region, and its implications for ice core studies
Read more of: A validation of ERA5 reanalysis data in the southern Antarctic Peninsula – Ellsworth Land region, and its implications for ice core studiesClimate reanalyses provide key information to calibrate proxy records in regions with scarce direct observations. The climate reanalysis used to perform a proxy calibration should accurately reproduce the local climate […]
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Observed response of stratospheric and mesospheric composition to sudden stratospheric warmings.
Read more of: Observed response of stratospheric and mesospheric composition to sudden stratospheric warmings.In this study we investigate and quantify the statistical changes that occur in the stratosphere and mesosphere during 37 sudden stratospheric warming (SSW) events from 1989 to 2016. We consider […]
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First ground-based conjugate observations of Stable Auroral Red (SAR) Arcs
Read more of: First ground-based conjugate observations of Stable Auroral Red (SAR) ArcsDuring the geomagnetic storm of 1 June 2013 all‐sky imagers located at geomagnetically conjugate locations at Millstone Hill, USA (42.6 o N, 71.4 o W, 50.9o mag lat) and at […]
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Cryptic speciation in Southern Ocean Aequiyoldia eightsii (Jay, 1839): Mio-Pliocene trans-Drake Passage separation and diversification
Read more of: Cryptic speciation in Southern Ocean Aequiyoldia eightsii (Jay, 1839): Mio-Pliocene trans-Drake Passage separation and diversificationThe species of the genus Aequiyoldia Soot-Ryen, 1951, previously known as Yoldia, are common, soft-substratum, sareptid bivalves. In the Southern Ocean, Aequiyoldia eightsii (Jay, 1839) was originally described from the […]
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