FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W305491070> ?p ?o ?g. }

• W305491070 abstract "ISSN 299-8004 | e-ISSN 2353-0790 | Rapid retreat and thinning of glaciers perturb balance of polar ecosystems. These processes influence global climate (Anderson et al. 2000, Plonka 2009). For better understanding of changes and their consequences for global climate, it is necessary to extend our knowledge about processes occurring contemporary in the forelands of retreating glaciers. Numerous researches were carried out on this subject (Anderson et al. 1997, Bukowska-Jania et al. 2003, Pulina et al. 2003). For example, uplift-driven climate change hypothesis assumes that decrease of temperature results from regression of glaciers and is connected with chemical denudation of silicate sediments, which acts as a sink of CO2 from the atmosphere (Plonka 2009). Despite of this, many processes and dependences in polar environment are poorly known. Retreating glaciers and high chemical denudation observed in Polar Regions play significant role in weathering of regolith. Fast retreat of many glaciers exposures great amounts of fresh and fine sediment. Weathering of rock-forming minerals is a source of ions in waters as well as secondary minerals and nutrients in initial soils. These issues are object of interest recently because intensified weathering in Polar Regions may affect global cycle of many elements, particularly Fe (Anderson et al. 1997, 2000, Brenasconi 2008). This study is a part of large research, concerning mechanisms, budget and transport of iron from the foreland of fast retreating arctic glacier. The objective of this research is to determine processes and products of siderite weathering in the polar condition. The area of this study is located on the SW part of the Spitsbergen, in the foreland of Werenskioldbreen. It is hypothesized that in Arctic these processes differ significantly from their equivalents in Alpine regions. Field experiment on Spitsbergen lasted eight years. Samples of the siderite were buried in the surface layer of bottom moraine (in the initial polar soils) 100 m, 250 m and 2000 m from glacier front. This represents a chronosequence of sediment uncovered from underneath the glacier ca. 5-, 10-, and 90-years ago. Samples were recovered after 1 year and after 8 years of burial. Optical microscopy in transmitted and reflected light, scanning electron microscopy SEM/EDS and powder X-ray diffractometry were applied to characterize both, control sample and experimental samples. Siderite with manganese substitutions sampled from the outcrops of metamorphic carbonate in the vicinity of Werenskiold glacier was used for the experiment. This resembles mineral fragments eroded and transported by the glacier. Characterization of control sample (siderite before the experiment) indicates that it already exhibits advanced stages of transformation into secondary phases. Secondary minerals include oxides and hydroxides of iron, such as: goethite, hematite and lepidocrocite. The same mineral phases were identified in experimental samples Weathering of siderite in the polar conditions" @default.
• W305491070 created "2016-06-24" @default.
• W305491070 creator A5025963401 @default.
• W305491070 creator A5032603419 @default.
• W305491070 creator A5068860450 @default.
• W305491070 date "2014-01-01" @default.
• W305491070 modified "2023-09-23" @default.
• W305491070 title "Weathering of siderite in the polar conditions" @default.
• W305491070 cites W1030589573 @default.
• W305491070 cites W1968815940 @default.
• W305491070 cites W2091489118 @default.
• W305491070 cites W2098985281 @default.
• W305491070 hasPublicationYear "2014" @default.
• W305491070 type Work @default.
• W305491070 sameAs 305491070 @default.
• W305491070 citedByCount "0" @default.
• W305491070 crossrefType "journal-article" @default.
• W305491070 hasAuthorship W305491070A5025963401 @default.
• W305491070 hasAuthorship W305491070A5032603419 @default.
• W305491070 hasAuthorship W305491070A5068860450 @default.
• W305491070 hasConcept C100834320 @default.
• W305491070 hasConcept C100970517 @default.
• W305491070 hasConcept C114793014 @default.
• W305491070 hasConcept C127313418 @default.
• W305491070 hasConcept C151730666 @default.
• W305491070 hasConcept C17409809 @default.
• W305491070 hasConcept C1965285 @default.
• W305491070 hasConcept C205649164 @default.
• W305491070 hasConcept C40724407 @default.
• W305491070 hasConcept C77928131 @default.
• W305491070 hasConcept C87432785 @default.
• W305491070 hasConceptScore W305491070C100834320 @default.
• W305491070 hasConceptScore W305491070C100970517 @default.
• W305491070 hasConceptScore W305491070C114793014 @default.
• W305491070 hasConceptScore W305491070C127313418 @default.
• W305491070 hasConceptScore W305491070C151730666 @default.
• W305491070 hasConceptScore W305491070C17409809 @default.
• W305491070 hasConceptScore W305491070C1965285 @default.
• W305491070 hasConceptScore W305491070C205649164 @default.
• W305491070 hasConceptScore W305491070C40724407 @default.
• W305491070 hasConceptScore W305491070C77928131 @default.
• W305491070 hasConceptScore W305491070C87432785 @default.
• W305491070 hasIssue "1" @default.
• W305491070 hasLocation W3054910701 @default.
• W305491070 hasOpenAccess W305491070 @default.
• W305491070 hasPrimaryLocation W3054910701 @default.
• W305491070 hasRelatedWork W1836344216 @default.
• W305491070 hasRelatedWork W1938709123 @default.
• W305491070 hasRelatedWork W194657232 @default.
• W305491070 hasRelatedWork W2002378360 @default.
• W305491070 hasRelatedWork W2025383072 @default.
• W305491070 hasRelatedWork W2070951490 @default.
• W305491070 hasRelatedWork W2134542073 @default.
• W305491070 hasRelatedWork W2137899037 @default.
• W305491070 hasRelatedWork W2151408440 @default.
• W305491070 hasRelatedWork W2343062055 @default.
• W305491070 hasRelatedWork W2796394497 @default.
• W305491070 hasRelatedWork W2884176020 @default.
• W305491070 hasRelatedWork W2907414073 @default.
• W305491070 hasRelatedWork W2915692886 @default.
• W305491070 hasRelatedWork W2969928601 @default.
• W305491070 hasRelatedWork W3047893581 @default.
• W305491070 hasRelatedWork W3111698133 @default.
• W305491070 hasRelatedWork W3206979662 @default.
• W305491070 hasRelatedWork W615514071 @default.
• W305491070 hasRelatedWork W938467568 @default.
• W305491070 hasVolume "40" @default.
• W305491070 isParatext "false" @default.
• W305491070 isRetracted "false" @default.
• W305491070 magId "305491070" @default.
• W305491070 workType "article" @default.