Seasonal input of heavy metals to Antarctic snow
Cadmium, copper, lead and zinc concentrations have been measured on a sequence of snow blocks covering 2 years’ accumulation at a site on the east coast of the Antarctic Peninsula. […]
6697 to 6708 of 14094 results
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Read more of: Seasonal input of heavy metals to Antarctic snow
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Preconcentration method for electrothermal atomic absorption spectrometric analysis for heavy metals in Antarctic snow at sub ng kg−1 levels
Read more of: Preconcentration method for electrothermal atomic absorption spectrometric analysis for heavy metals in Antarctic snow at sub ng kg−1 levelsAn improved technique for concentrating heavy metals onto the surface of tungsten wires, prior to analysis by electrothermal atomic absorption spectrometry, is reported. Ultraclean methods and materials, described here, have […]
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Dinoflagellate cysts from the Rabot Member (Santa Marta Formation) of eastern James Ross Island
Read more of: Dinoflagellate cysts from the Rabot Member (Santa Marta Formation) of eastern James Ross IslandPalynomorph assemblages dominated by dinoflagellate cysts are described from seventeen samples from the Rabot Member of the Santa Marta Formation at Ekelöf Point, eastern James Ross Island, Antarctic Peninsula. Although […]
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Upper Proterozoic rift-related rocks in the Pensacola Mountains, Antarctica: Precursors to supercontinent breakup?
Read more of: Upper Proterozoic rift-related rocks in the Pensacola Mountains, Antarctica: Precursors to supercontinent breakup?Sedimentological and structural studies in the Pensacola Mountains, Antarctica, suggest that upper Precambrian clastic sedimentary rocks of the Patuxent Formation and associated bimodal volcanic rocks formed in an intracontinental rift […]
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Role of subduction-plate boundary forces during the initial stages of Gondwana break-up: evidence from the proto-Pacific margin of Antarctica
Read more of: Role of subduction-plate boundary forces during the initial stages of Gondwana break-up: evidence from the proto-Pacific margin of AntarcticaIn the West Antarctic sector of Gondwana, early stages of break-up are associated with the large Antarctic-Karoo-Tasman basalt province. Formation of this within-plate province was synchronous with active margin tectonics […]
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Dinoflagellate cysts from an allochthonous block of Nordenskjöld Formation (Upper Jurassic), north-west James Ross Island
Read more of: Dinoflagellate cysts from an allochthonous block of Nordenskjöld Formation (Upper Jurassic), north-west James Ross IslandAn allochthonous block of the Nordenskjöld Formation from north-west James Ross Island, Antarctic Peninsula has yielded a diverse marine palynoflora. Dinoflagellate cyst assemblages from the 185 m thick sequence are […]
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Microplankton from the Cape Lamb Member, López de Bertodano Formation (Upper Cretaceous), Cape Lamb, Vega Island
Read more of: Microplankton from the Cape Lamb Member, López de Bertodano Formation (Upper Cretaceous), Cape Lamb, Vega IslandSamples from the lower Cape Lamb Member, López de Bertodano Formation, Cape Lamb, Vega Island, Antarctic Peninsula have yielded rich and diverse marine palynofloral assemblages. The overall character of the […]
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Fluorine and boron geochemistry of an ensialic marginal basin volcano: Deception Island, Bransfield Strait, Antarctica
Read more of: Fluorine and boron geochemistry of an ensialic marginal basin volcano: Deception Island, Bransfield Strait, AntarcticaWe present the initial results of a quantitative investigation of the volatile geochemistry of Deception Island, an active volcano situated near the spreading axis of a Quaternary ensialic marginal basin […]