کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10997856 | 1332079 | 2017 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Bog iron ore as a resource for prehistoric iron production in Central Europe - A case study of the Widawa catchment area in eastern Silesia, Poland
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Bog iron ore as a resource for prehistoric iron production in Central Europe - A case study of the Widawa catchment area in eastern Silesia, Poland Bog iron ore as a resource for prehistoric iron production in Central Europe - A case study of the Widawa catchment area in eastern Silesia, Poland](/preview/png/10997856.png)
چکیده انگلیسی
The crystalline mineralogical composition of local bog iron ores is dominated by quartz (SiO2) and goethite (α-FeO(OH)), in contrast to slag samples in which fayalite (Fe2SiO4), wüstite (FeO) and quartz, with traces of goethite, represent the main minerals. Ores and slags are both characterized by notable hematite (Fe2O3), magnetite (Fe3O4) and maghemite (γ-Fe2O3) contents. Analyzed bog iron ore samples show iron contents of up to 64.9 mass% Fe2O3 (equivalent to 45.4 mass% Fe), whereas the iron contents of bloomery slags vary between 48.7 and 72.0 mass% FeO (equivalent to 37.9 and 56.0 mass% Fe). A principal component analysis of the element contents, which were quantified by portable energy-dispersive X-ray fluorescence spectrometry, indicates local variations in the elemental composition. The results of this study show that bog iron ores are relatively widely distributed with spatially varying iron contents along the Widawa floodplain but present-day formation conditions, such as changed groundwater levels, are negatively affected by modern land-use practices, such as agriculture and melioration measures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: CATENA - Volume 149, Part 1, February 2017, Pages 474-490
Journal: CATENA - Volume 149, Part 1, February 2017, Pages 474-490
نویسندگان
Michael Thelemann, Wiebke Bebermeier, Philipp Hoelzmann, Enrico Lehnhardt,