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71.
Anna Fedrigo Markus Strobl Alan R. Williams Kim Lefmann Poul Erik Lindelof Lars Jørgensen Peter Pentz Dominik Bausenwein Burkard Schillinger Anton Kovyakh Francesco Grazzi 《Archaeological and Anthropological Sciences》2018,10(6):1249-1263
We present novel imaging results from a non-invasive examination of three ‘pattern-welded’ swords from the Viking Age belonging to the National Museum of Denmark, using white beam and energy resolved tomographies with neutrons. Pattern-welded blades are made by forge welding together thin strips of iron and steel that were twisted and joined in various ways, producing a decorative pattern on the surface. The study shed light on the inner structure of the composite material and manufacturing techniques of these admired examples of past technology, revealing some otherwise invisible details of their assembly methods, phase distribution and extent of the corrosion. 相似文献
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Glass and glass production in the Oman peninsula in antiquity reconsidered – chemical and mineralogical investigation of sands
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Alicia Van Ham‐Meert Sarah Dillis Bruno Overlaet Patrick Degryse 《Arabian Archaeology and Epigraphy》2018,29(1):93-101
A batch of green‐ and amber‐coloured glass chunks and unguentaria dating from the first century CE was found in 2007 at Dibba al Hisn, a site on the Arabian Sea coast of the United Arab Emirates (UAE). Its elemental and isotopic composition revealed the glass to be of a previously unknown plant ash glass type, different from known contemporary Roman, Mesopotamian, and Indian glass. The Sr isotopic composition of the glass corresponds to locally available plants, pointing to the possible existence of a first‐century CE local glass production centre. To explore this possibility, sands from around the UAE were analysed to establish their suitability for glass making and correspondence with the Dibba finds. This paper presents the results of the elemental analysis of fourteen sands. The analysis, performed using inductively coupled plasma optical emission spectroscopy (ICP‐OES), revealed all sands to be rich in lime and alumina. X‐ray diffraction revealed the presence of calcite and other carbonate minerals, as well as antigorite and quartz. Comparison of the sand compositions to average first‐century CE non‐Roman glass found at Dibba showed them to be unsuitable as raw material for producing the glass of Dibba. The evidence thus identifies this glass batch as imported, contrary to what was suggested before. This paper also reviews the occurrence of thick‐walled unguentaria in the region. 相似文献
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Pierre M. Vermeersch Etienne Paulissen Philip Van Peer 《African Archaeological Review》1990,8(1):77-102
Different raw material procurement strategies are attested in the limestone stretch of the Egyptian Nile Valley. Chert cobbles from Nile terraces or from their derived deposits were generally used. Four main procurement strategies have been recognized. During the Middle Palaeolithic intensive surface collecting was the most common strategy. However, open quarrying techniques involving features such as ditches are also attested. True subterranean mining with vertical shafts and underground galleries was known by the Early Upper Palaeolithic at 35,000 years BP. Extracted nodules were processed at the procurement sites. The study of the reduction strategies has proved valuable in gaining a better understanding of the Palaeolithic sequence of the Egyptian Nile Valley.
Résumé Différentes stratégies d'obtention de matière première ont été reconnues dans la zone calcaire de la vallée du Nil égyptien. En majorité, ce sont des galets de chert qui ont été utilisés. Les stratégies d'obtention se classent en quatre types. Au Paléolithique Moyen la méthode la plus fréquente était la collection intensive en surface. Mais il y eut aussi une technique d'exploitation en profondeur, à l'aide de tranchées à ciel ouvert. Une véritable extraction minière avec des puits verticaux et des galleries souterraines fut pratiquée dès le début du Paléolithique Supérieur, vers 35.000 BP. Les galets extraits étaient réduits sur les sites d'exploitation mêmes. L'étude des processus de réduction nous a permis de mieux comprendre la séquence paléolithique de la vallée du Nil égyptien.相似文献
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Deborah Van Heekeren 《History & Anthropology》2017,28(5):605-629
This article describes an ethnographic project initiated by a group of people in Irupara village, Papua New Guinea (PNG), who for a period between 2001 and 2010 self-identified as ‘historians’. At the forefront of the group’s concerns was a younger generation unfamiliar with the local language names of fish and fishing techniques. I document the collaborative project developed to address a situation perceived as a loss of language, culture, and identity. As well as providing a valuable lexicon in an Austronesian language, the research brings to light important distinctions between recording ‘history’ and ways of recalling and expressing the past commonly referred to as ‘historicity’. 相似文献
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