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Micro- and Nanoscal...
Micro- and Nanoscale Surface Analysis of Late Iron Age Glass from Broborg, a Vitrified Swedish Hillfort
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- Matthews, Bethany E. (author)
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
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- Neeway, James J (author)
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
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- Farias, Lorena Nava (author)
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
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- Marcial, José (author)
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
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- Arey, Bruce W (author)
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
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- Soltis, Jennifer (author)
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
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- Kovarik, Libor (author)
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
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- Zhu, Zihua (author)
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
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- Schweiger, Michael J (author)
- DOE Consultant, Richland, WA 99354, USA
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- Canfield, Nathan (author)
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
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- Varga, Tamas (author)
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
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- Bowden, Mark E (author)
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
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- Weaver, Jamie L. (author)
- Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
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- Mccloy, John S (author)
- Washington State University, PO Box 642920, Pullman, WA 99164, USA
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- Sjöblom, Rolf (author)
- Luleå tekniska universitet,Geovetenskap och miljöteknik
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- Hjärthner-Holdar, Eva (author)
- Geoveta AB, Sjöängsvägen 2, 19272 Sollentuna, Sweden
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- Englund, Mia (author)
- Geoveta AB, Sjöängsvägen 2, 19272 Sollentuna, Sweden
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- Ogenhall, Erik (author)
- Geoveta AB, Sjöängsvägen 2, 19272 Sollentuna, Sweden
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- Vicenzi, Edward P. (author)
- Smithsonian Institution, Museum Conservation Institute, 4610 Silver Hill Road, Suitland, MD 20746, USA
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- Corkhill, Claire L (author)
- Department of Materials Science & Engineering, The University of Sheffield, Sheffield S1 3JD, UK
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- Thorpe, Clare (author)
- Department of Materials Science & Engineering, The University of Sheffield, Sheffield S1 3JD, UK
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- Hand, Russell J (author)
- Department of Materials Science & Engineering, The University of Sheffield, Sheffield S1 3JD, UK
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- Peeler, David K (author)
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
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- Pearce, Carolyn I. (author)
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
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- Kruger, Albert A (author)
- Department of Energy, Office of River Protection, Richland, WA 99352, USA
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(creator_code:org_t)
- 2023-01-11
- 2023
- English.
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In: Microscopy and Microanalysis. - : Oxford University Press. - 1431-9276 .- 1435-8115. ; 29:1, s. 50-68
- Related links:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Archaeological glasses with prolonged exposure to biogeochemical processes in the environment can be used to understand glass alteration, which is important for the safe disposal of vitrified nuclear waste. Samples of mafic and felsic glasses with different chemistries, formed from melting amphibolitic and granitoid rocks, were obtained from Broborg, a Swedish Iron Age hillfort. Glasses were excavated from the top of the hillfort wall and from the wall interior. A detailed microscopic, spectroscopic, and diffraction study of surficial textures and chemistries were conducted on these glasses. Felsic glass chemistry was uniform, with a smooth surface showing limited chemical alteration (<150 nm), irrespective of the position in the wall. Mafic glass was heterogeneous, with pyroxene, spinel, feldspar, and quartz crystals in the glassy matrix. Mafic glass surfaces in contact with topsoil were rougher than those within the wall and had carbon-rich material consistent with microbial colonization. Limited evidence for chemical or physical alteration of mafic glass was found; the thin melt film that coated all exposed surfaces remained intact, despite exposure to hydraulically unsaturated conditions, topsoil, and associated microbiome for over 1,500 years. This supports the assumption that aluminosilicate nuclear waste glasses will have a high chemical durability in near-surface disposal facilities.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- alteration
- late Iron Age glass
- low activity radioactive waste glass
- Avfallsteknik
- Waste Science and Technology
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Matthews, Bethan ...
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Neeway, James J
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Farias, Lorena N ...
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Marcial, José
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Arey, Bruce W
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Soltis, Jennifer
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show more...
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Kovarik, Libor
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Zhu, Zihua
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Schweiger, Micha ...
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Canfield, Nathan
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Varga, Tamas
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Bowden, Mark E
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Weaver, Jamie L.
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Mccloy, John S
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Sjöblom, Rolf
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Hjärthner-Holdar ...
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Englund, Mia
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Ogenhall, Erik
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Vicenzi, Edward ...
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Corkhill, Claire ...
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Thorpe, Clare
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Hand, Russell J
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Peeler, David K
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Pearce, Carolyn ...
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Kruger, Albert A
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Environmental Sc ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
- Articles in the publication
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Microscopy and M ...
- By the university
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Luleå University of Technology