| 1. |
- Bindler, Richard, et al.
(författare)
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Revisiting Key Sedimentary Archives Yields Evidence Of A Rapid Onset Of Mining In The Mid-13th Century At The Great Copper Mountain, Falun, Sweden
- 2016
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Ingår i: Archaeometry. - : Wiley. - 0003-813X .- 1475-4754. ; 58:4, s. 642-658
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Tidskriftsartikel (refereegranskat)abstract
- Mining in Falun, Sweden, was first mentioned in a deed from AD 1288, but previous studies of peat and lake sediments inferred that mining began during the fifth to eighth centuries. In order to reassess these findings, we performed new geochemical analyses on new samples from three key sites: Tisksjobergets myr, a buried mire alongside the mine; Tisken, a small lake in Falun; and Runn, the main recipient for waters draining through Falun. At Tisksjobergets myr, the peat contains up to 6% copper, giving it the characteristics of a cupriferous bog. Hence, this record is not useful for tracing early mining. The sediments of Tisken-upon which many of the old interpretations have relied-contain numerous cut wood fragments, and two of those gave young and reversed radiocarbon dates (19th and 16th centuries for 192 and 187 cm, respectively). This indicates that the sediment was derived from infilling and, thus, has little value as a historical record. Runn's sediment-the only reliable record-provides clear evidence of a rapid onset of large-scale mining from c. AD 1245, with abrupt increases in ore-related elements-for example, a 34-fold increase in copper-this increase is consistent with the mid-13th century burial of the mire at Tisksjoberget.
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| 2. |
- Buckland, Philip I., Dr. 1973-, et al.
(författare)
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When a Waterhole is Full of Dung : An Illustration of the Importance of Environmental Evidence for Refining Archaeological Interpretation of Excavated Features
- 2019
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Ingår i: Archaeometry. - : John Wiley & Sons. - 0003-813X .- 1475-4754. ; 61:4, s. 977-990
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Tidskriftsartikel (refereegranskat)abstract
- Prehistoric field systems sometimes encompass excavated, pit-like features which are difficult to classify due to the complex stratigraphies resulting from reuse, infilling and collapse. They are frequently classified as wells and watering holes, but other potential uses for excavated depressions are rarely cited. We argue the need for environmental archaeology in the interpretation of features of this nature, and present a case study from a Bronze Age site at Pode Hole, near Peterborough (UK), where fossil insect material clearly contradicts the archaeological interpretation. We present empirical evidence for a sealed context filled with dung which cannot be interpreted as a water source. This evidence strongly contrasts with other superficially similar features at the site.
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| 3. |
- Lopez, P., et al.
(författare)
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Discrimination of Ceramic Types Using Digital Image Processing by Means of Morphological Filters
- 2015
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Ingår i: Archaeometry. - : Wiley. - 0003-813X .- 1475-4754. ; 57:1, s. 146-162
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Tidskriftsartikel (refereegranskat)abstract
- Digital processing of images can be used to analyse ceramic pastes, contributing in this way to the discrimination of ceramic types. The method involves several stages of analysis: digitization of images of ceramic pastes, pre-processing of the images, particle segmentation, calculation, quantification and classification of the particle sizes. This procedure uses interactive algorithms of segmentation of images and grain size analysis derived from mathematical morphology theory. To prove the efficiency of the method, we processed digital images of polished thin sections of ceramic samples of Cypriot wares from the Late Bronze Age (1550-1450 bc) and their Egyptian reproductions. Such groups have been previously analysed by optical microscopy, XRD, XRF, ICP-MS and EPMA. The results of the analysis were able to discriminate between these two different wares.
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| 4. |
- Oudbashi, Omid, 1978, et al.
(författare)
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Technical Studies on the Bronze Age Metal Artefacts from the Graveyard of Deh Dumen, South-Western Iran (Third Millennium BC)
- 2016
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Ingår i: Archaeometry. - : Wiley. - 0003-813X .- 1475-4754. ; 58:6, s. 947-965
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Tidskriftsartikel (refereegranskat)abstract
- During the excavations of the graveyard at the site of Deh Dumen in south-western Iran, 15 graves from the Early/Middle Bronze Age were uncovered that contained a variety of metallic artefacts. This paper reports on the analysis of nine metal artefacts, including eight broken vessels and a decorative strip that covered the handle of a dagger. The ICP–MS results showed that the bodies of the vessels are made of tin bronze alloy with variable amounts of tin, while the internal piece of the base of one vessel is made from an arsenical copper alloy. Further, the metallic strip is a thin sheet manufactured with partially pure silver. Microanalytical and microstructural information yielded by SEM–EDS revealed elongated Cu–S inclusions and lead globules as various phases formed in bronze solid solution. This study presents some information about the transition from arsenical copper to bronze metallurgy in the third millennium bc in south-western Iran.
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