Jiří Kmošek
Academy of Fine Arts Vienna, Institute of Science and Technology in Art, Department Member
In einer germanischen Siedlung in der Katastralgemeinde Koci (Kotschy) in Ostbohmen, die durch andere Funde in die Zeit der Markomannenkriege datiert ist, kam eine halbe Gussform aus einer Legierung aus Kupfer, Zinn und Zink mit einem... more
In einer germanischen Siedlung in der Katastralgemeinde Koci (Kotschy) in Ostbohmen, die durch andere Funde in die Zeit der Markomannenkriege datiert ist, kam eine halbe Gussform aus einer Legierung aus Kupfer, Zinn und Zink mit einem deutlichen Anteil an Blei zutage. Sie war zur Herstellung von Spangen des Typs Almgren 132 bestimmt. Die Funde von Produktionsabfallen zeigen, dass in der Zeit der Markomannenkriege in diesem Raum mit Buntmetallen gearbeitet wurde. Der Spangentyp Almgren 132 kommt auf dem Gebiet von Bohmen und Mahren allerdings nur selten vor. J. Tejral weist auf die spezifische Situation an der mittleren Donau hin, nachdem Commodus mit den Germanen Frieden schloss, denn man beobachtet in dieser Zeit einen intensiven Zuwachs an romischer Importware im ostgermanischen Raum. Zugleich begegnet man dort Produkten ostgermanischen Ursprungs. J. Tejral erklart diese Situation dadurch, dass spezifische Bedingungen fur einen gegenseitigen kulturellen Austausch entstanden, wobei...
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The paper deals with material research of a bronze circle from the Hallstatt culture period. The structure of bronze was observed with an optical microscope and scanning electron microscope. The structure corresponds to wrought tin bronze... more
The paper deals with material research of a bronze circle from the Hallstatt culture period. The structure of bronze was observed with an optical microscope and scanning electron microscope. The structure corresponds to wrought tin bronze after recrystallization annealing. One original repair of the crack in the material which was done by cast bronze, was determined. The bronze contains a big amount of sulphide inclusions, which are oriented in a direction of forming material. Chemical composition of the alloy and non-ferrous inclusions were determined by the EDS analyser and minority elements were determinate by the XRF spectrometer. The bronze contains 9 to 10 wt. % Sn with minority elements Pb, Ni and Fe. XRD and SEM were used in order to identify non-equilibrium Cu-Sn phases. The results were compared with EBSD analysis. The non-equilibrium phase Cu39Sn11 was reliably determined by EBSD analyser.
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Práce se zabývá vyhodnocením experimentálně získaných produktů z přímé redukce železa z rud v replice železářské pece doby laténské. Pro rozbor železné houby, kovářsky zpracovaných polotovarů, železářské strusky a železné rudy byla... more
Práce se zabývá vyhodnocením experimentálně získaných produktů z přímé redukce železa z rud v replice železářské pece doby laténské. Pro rozbor železné houby, kovářsky zpracovaných polotovarů, železářské strusky a železné rudy byla použita optická a elektronová mikroskopie, optická emisní a rentgenová fluorescenční analýza, elektronová mikroanalýza a rentgenová difrakční analýza. Analýzami bylo zjištěno, že produktem tavby je železná houba s nehomogenní distribucí uhlíku, s oblastmi čistého feritu a charakteristickými strukturami podeutektoidní oceli. V překovaném polotovaru železné houby byl dokumentován zvýšený obsah uhlíku a přítomnost ledeburitické struktury. Významnou strukturní fází přímo redukovaného železa jsou v tomto případě struskové vměstky, obsahující wüstit, fayalit a amorfní skelnou fázi.
The paper is dealing with an evaluation of experimental products from direct reduction of iron ore in replica of bloomery furnace from the La Tene period. Following methods were used for an analysis of iron bloom, forged billets, iron slag and iron ore: optical and electron microscopy, optical emission and X-ray fluorescence analysis, electron probe microanalysis and X-ray diffraction analysis. It was found that a smelting product is an iron bloom with an inhomogeneous distribution of carbon, with areas of pure ferrite, ferritic-pearlite and hypoeutectoid steel areas. Increased carbon content and the presence of ledeburitic structure was documented in the reforged billet of iron bloom. An important structural phase of direct reduced iron slag are inclusions containing wüstit, fayalite and amorphous glassy phase.
The paper is dealing with an evaluation of experimental products from direct reduction of iron ore in replica of bloomery furnace from the La Tene period. Following methods were used for an analysis of iron bloom, forged billets, iron slag and iron ore: optical and electron microscopy, optical emission and X-ray fluorescence analysis, electron probe microanalysis and X-ray diffraction analysis. It was found that a smelting product is an iron bloom with an inhomogeneous distribution of carbon, with areas of pure ferrite, ferritic-pearlite and hypoeutectoid steel areas. Increased carbon content and the presence of ledeburitic structure was documented in the reforged billet of iron bloom. An important structural phase of direct reduced iron slag are inclusions containing wüstit, fayalite and amorphous glassy phase.
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Niello je výzdobná inkrustační technika, při níž jsou ryté nebo leptané drážky v povrchu kovu vyplňovány opticky kontrastní šedou nebo černou hmotou. Toto označení se vztahuje k černým inkrustacím, tvořeným převážně sulfidy stříbra, mědi... more
Niello je výzdobná inkrustační technika, při níž jsou ryté nebo leptané drážky v povrchu kovu vyplňovány opticky kontrastní šedou nebo černou hmotou. Toto označení se vztahuje k černým inkrustacím, tvořeným převážně sulfidy stříbra, mědi a olova. Tyto sulfidy snadno vznikají zahříváním síry v přítomnosti kovových pilin. Zdobná technika niellovaní byla na území Evropy využívána od doby římské až do počátku 20. století. O přípravě a použití niella se zmiňují i některé historické prameny, např. Plinius v 1. století, Theophilus ve 12. století nebo Benvenuto Cellini v 16. století.
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Do zavedení moderního způsobu výroby dřevěného uhlí v železných pecích se používala základní metoda pálení dřevěného uhlí v nadzemních milířích, a to až do začátku 20. století. Milířů je několik typů. V zásadě jde o narovnanou hromadu... more
Do zavedení moderního způsobu výroby dřevěného uhlí v železných pecích se používala základní metoda pálení dřevěného uhlí v nadzemních milířích, a to až do začátku 20. století. Milířů je několik typů. V zásadě jde o narovnanou hromadu dřeva opatřenou izolační pokrývkou k zamezení přístupu vzduchu. Další možnou metodou, užívanou spíše v pravěku a středověku, jsou uhelné jámy, ale jejich využití je zatím z důvodu absence většího množství archeologických podkladů a historických zpráv opomíjeno. Záměrem našeho experimentu bylo přispět k diskuzi a případnému objasnění této problematiky. Tento experiment představuje možné řešení výroby dřevěného uhlí v době železné, ale je uplatnitelný zároveň i v jiných obdobích pravěku a středověku. Hlavním cílem experimentu je na základě shromáždění dostupných informací a zpráv o technologii pálení dřevěného uhlí v jamách se pomocí terénních experimentů seznámit s touto technologií a zjistit základní vlastnosti a možnosti uhelných jam. Dalším cílem je obsáhnout základní výrobní postupy v experimentálních výpalech a zjistit jejich efektivitu. Dále se budeme snažit najít výrobní postup, který by se ve výsledku shodoval s archeologickou předlohou. Na základě získaných podkladů provést syntézu dat a vyhodnotit výsledky. Důležitým aspektem experimentu je možnost srovnání výsledků z uhelných jam s technologií milířů.
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The spatial documentation using the 3D scanning method has been applied to three historical buildings: the timbered house No. 97 in Čistá, the polygonal timbered barn No. 97 in Čistá and the timbered house No. 2 in Trstěnice. The... more
The spatial documentation using the 3D scanning method has been applied to three historical buildings: the timbered house No. 97 in Čistá, the polygonal timbered barn No. 97 in Čistá and the timbered house No. 2 in Trstěnice. The monitored timbered buildings make it possible to demonstrate the ways of using data obtained from 3D scanning within a whole range of applications. The potential of the technologies has been utilised above all in the description of the state of the buildings and gradually disappearing constructions of the timbered house in Trstěnice and of the transferred buildings in Čistá. Within such a context, this type of documentation is gaining in importance and becoming a priceless source of information. 3D scanning was used simultaneously with other commonly used methods of 2D documentation, such as construction technical documentation and photogrammetry. The acquisition of 3D data about the chosen historical buildings and their details has been done by three different types of scanners: manual laser scanner Exa Scantm by Creaform, manual optical scanner Artectm Eva and manual stationary laser scanner ScanStation P40 by Leica Geosystems.
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The study deals with a material survey and determination of the corrosion character of a Roman bronze vessel from an early Tiberian period. The ancient technology of the bronze vessel production was determined by evaluation of structural... more
The study deals with a material survey and determination of the corrosion character of a Roman bronze vessel from an early Tiberian period. The ancient technology of the bronze vessel production was determined by evaluation of structural properties of the material using prepared metallographic sections. The vessel was produced by combining the technologies of hammering and metal pressing on a pre-cast bronze piece, side ornaments were cast from bronze. Chlorides were identified along the material grains. It was identified that the mixture of corrosion products covering the surface of the vessel contained, in addition to other elements, basic copper chloride. The presence of chloride anions, atmospheric humidity and mechanical stress lead to corrosion of the bronze vessel called the “bronze disease”. The material in the upper part of the vessels lost cohesion completely and the neck of the vessel broke as a result of the corrosion process. The vessel was desalinated and reconstructed in a relatively unique way. At present, the vessel is a property of the National Museum in Prague.
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The paper deals with the material research, determination of the character of the corrosion attack and restoring of a bronze situla. The object was found among grave accessories from late Roman times at the renowned archaeological site of... more
The paper deals with the material research, determination of the character of the corrosion attack and restoring of a bronze situla. The object was found among grave accessories from late Roman times at the renowned archaeological site of Dobřichov - Pičhora. The material research revealed that corrosion products contained chloride anions that, as a result of atmospheric humidity, caused corrosion of the vessel called “bronze disease”. The combination of mechanical stress (induced already at the moment when the object was made) and the bronze disease lead to complete loss of cohesion in the upper part of the vessel and breaking off of its neck. The shape of the neck was restored in a rather unique way. An internal supporting construction was designed to distribute the weight of the neck more evenly throughout the vessel walls. This act relieved substantially the stress affecting the upper part of the bronze situla. The proposed protective regime of the object reflected its deposition at its possessor’s premises, the National Museum in Prague.
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This paper addresses the investigation and restoration of an archaeological object - a bronze ring, using modern 3D technologies for the reconstruction interventions. The object was found as part of the burial grave equipment from the... more
This paper addresses the investigation and restoration of an archaeological object - a bronze ring, using modern 3D technologies for the reconstruction interventions. The object was found as part of the burial grave equipment from the Iron Age site at Červeny Hradek in western Bohemia. The combination of mechanical stress and corrosion damage (bronze disease) led to the disintegration of the object to a number of fragments. The object investigation was aimed at determining the corrosion damage, chemical and phase composition of the metallic material, technological aspects of the production technology and identification of previous conservation interventions on the object. Modern 3D technologies were used in the shape reconstruction of the bronze ring fragments. Individual fragments were scanned through optical 3D scanning technology with high resolution into digital form and virtually reconstructed to its original shape. The obtained 3D model served as the basis for the creation of supporting construction through 3D printing technology to semi-transparent polymer material. Individual fragments of the ring were reconstructed on a printed template. This work describes available 3D technologies that are commonly used in foreign institutions for the purpose of professional documentation, presentation and restoration of various historical monuments.
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This paper addresses the investigation and restoration of an archaeological object - a bronze ring, using modern 3D technologies for the reconstruction interventions. The object was found as part of the burial grave equipment from the... more
This paper addresses the investigation and restoration of an archaeological object - a bronze ring, using modern 3D technologies for the reconstruction interventions. The object was found as part of the burial grave equipment from the Iron Age site at Červeny Hradek in western Bohemia. The combination of mechanical stress and corrosion damage (bronze disease) led to the disintegration of the object to a number of fragments. The object investigation was aimed at determining the corrosion damage, chemical and phase composition of the metallic material, technological aspects of the production technology and identification of previous conservation interventions on the object. Modern 3D technologies were used in the shape reconstruction of the bronze ring fragments. Individual fragments were scanned through optical 3D scanning technology with high resolution into digital form and virtually reconstructed to its original shape. The obtained 3D model served as the basis for the creation of supporting construction through 3D printing technology to semi-transparent polymer material. Individual fragments of the ring were reconstructed on a printed template. This work describes available 3D technologies that are commonly used in foreign institutions for the purpose of professional documentation, presentation and restoration of various historical monuments.
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The paper is dealing with an evaluation of experimental products from direct reduction of iron ore in replica of bloomery furnace from the La Tene period. Following methods were used for an analysis of iron bloom, forged billets, iron... more
The paper is dealing with an evaluation of experimental products from direct reduction of iron ore in replica of bloomery furnace from the La Tene period. Following methods were used for an analysis of iron bloom, forged billets, iron slag and iron ore: optical and electron microscopy, optical emission and X-ray fluorescence analysis, electron probe microanalysis and X-ray diffraction analysis. It was found that a smelting product is an iron bloom with an inhomogeneous distribution of carbon, with areas of pure ferrite, ferritic-pearlite and hypoeutectoid steel areas. Increased carbon content and the presence of ledeburitic structure was documented in the reforged billet of iron bloom. An important structural phase of direct reduced iron slag are inclusions containing wüstit, fayalite and amorphous glassy phase.
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InArt 2013 - international conference on innovation in art research and technology, Evora, Portugal (poster presentation)
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50th anniversary conference The Historical Metallurgy Society, London 2013
Research of a bronze turban-shape circle from the Iron Age (Poster presentation)
Research of a bronze turban-shape circle from the Iron Age (Poster presentation)
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The aim of the Project is to highlight the essentiality and nature of folk cultural heritage. In the centre of the Project stands a series of folk buildings from the area of Czech-Moravian Borderland – a stone farmstead, a timbered house,... more
The aim of the Project is to highlight the essentiality and nature of folk cultural heritage. In the centre of the Project stands a series of folk buildings from the area of Czech-Moravian Borderland – a stone farmstead, a timbered house, a timbered reservatum rusticum, a timbered polygonal barn and other minor manufacturing objects. The buildings represent an exceptionally valuable group of monuments, which have something in common. Besides the high culture-historical value it is a bad condition of preservation and imminent danger of extinction. As far as the timbered objects are concerned, some of these are examples of the oldest preserved layer of vernacular architecture in the Czech Republic from the turn of 16th and 17th century and their current owners are considering demolition. The only possible way to preserve the objects is their displacement to a new place. The goal of the project is, within 5 to 10 years, to centralize all the chosen endangered buildings in a well-preserved agricultural and cultural landscape near the town of Litomyšl. In such a way the emerging space will create authentic environment for presentation of living regional folk culture – architectural practise, agricultural and craft processes and folk customs and habits in the territory of Czech-Moravian Borderland where for centuries has been a border between Czech and German speaking inhabitants. The implementor of the project is the Association of Archaic Enthusiasts and the Institution of Folk Cultural Heritage.
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A first report on an ongoing project of the study of archaeometallurgy at Old Kingdom Giza.
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This article presents a preliminary report on the first results of the interdisciplinary project Early copper metallurgy in Ancient Egypt- a case study of the material from Agyptisches Museum - Georg Steindorff - der Universitat Leipzig,... more
This article presents a preliminary report on the first results of the interdisciplinary project Early copper metallurgy in Ancient Egypt- a case study of the material from Agyptisches Museum - Georg Steindorff - der Universitat Leipzig, in cooperation of the Czech Institute of Egyptology, Faculty of Arts, Charles University in Prague, Institute of Chemistry and Technology in Prague and the Egyptian Museum in Leipzig. The project is focused on the analysis of a selected corpus of artefacts from ancient Egyptian and Nubian sites (fig. 1 ). The analysed material was found in greatest part at the Egyptian sites of Abusir, Abydos and Giza and at the Nubian site of Aniba (fig. 2). The artefacts represent an outline of the development of ancient Egyptian metallurgy over more than one and half millennia, from the First Dynasty (ca 3100 - 2900 BC) until almost the end of the New Kingdom (ca 1200 BC). The selected corpus of artefacts has been documented by X-ray radiography and computer tomo...
Research Interests: Archaeology, Art, Egyptian Archaeology, Bronze Age Archaeology, Old Kingdom (Egyptology), and 11 morePredynastic and Early Dynastic Egypt, New Kingdom (Egyptology), Ancient Egyptian Art and Archaeology, Ancient Egypt, Bronze Age, Early Bronze Age Archaeology, Abusir, Giza, Nubian Archaeology, Ancient Egyptian metallurgy, and Ancient Egyptian metal tools
This paper presents archaeometric and archaeological study of a set of copper and bronze artifacts found at the sites of ancient Egypt and Nubia, which are deposited in the collection of Ägyptisches Museum – Georg Steindorff – der... more
This paper presents archaeometric and archaeological study of a set of copper and bronze artifacts found at the sites of ancient Egypt and Nubia, which are deposited in the collection of Ägyptisches Museum – Georg Steindorff – der Universität Leipzig. Examined artifacts have been found at several important sites: Abydos, Abusir, Giza and Aniba. They represent the development of Ancient Egyptian metallurgy in more than one and half millennium, from the Dynasty 1 (ca. 3100 – 2900 BC) until almost the end of the New Kingdom (ca. 1200 BC). Analyzed set of 86 artifacts and almost 100 samples is covering different typological groups of the artifacts, such as full-size tools, their models, full-size vessels and mirrors, etc. Detailed technical analysis has been carried out with the aim to obtain or specify information about chemical or structural artifact composition, using wide range of analytical techniques. All artifacts have been documented by X-ray radiography and more complex artifacts by X-ray tomography. Selected artifacts have been studied by metallographic methods in combination with micro hardness tests and SEM/EBSD analysis for better understanding of the mechanical and heat treatment production techniques. Chemical composition analyses were carried out by methods of XRF, SEM/EDS and NAA with the aim to characterize metals alloys and present admixtures. On the set of analyzed artifacts is clearly visible evolution of the alloys use across the studied periods and geographical areas. All obtained analytical data have been statistically evaluated in the context of spatial distribution, dating and function of the studied artifacts, in order to contribute to more detailed and accurate knowledge of metal production techniques and materials used in the Ancient Egyptian metallurgy.
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Abstract The paper presents a geochemical analysis of a remarkable assemblage from the early La Tene period (4th century BCE): the Duchcov hoard found in the late 19th century in north-western Bohemia. More than a thousand pieces of... more
Abstract The paper presents a geochemical analysis of a remarkable assemblage from the early La Tene period (4th century BCE): the Duchcov hoard found in the late 19th century in north-western Bohemia. More than a thousand pieces of bronze jewellery (mostly brooches and bracelets) in a bronze cauldron were deposited in a natural spring. This possibly ritual offering of unknown purpose might have involved a large community whose origin and structure could be discussed using archaeometric data from the hoard. The typologically and chronologically highly homogeneous assemblage with stylistic parallels across western and central Europe offers a unique opportunity to study Iron Age bronze metalworking, for which scientific data in Europe are still sparse. The assemblage was studied using a range of methods to derive information on the composition of the alloys and to determine their provenance using trace element patterns and lead isotope analysis. The results show that this seemingly homogeneous assemblage contains several chemically distinctive groups that are compatible with the spread of the so-called Duchcov-Munsingen horizon in the 4th century BCE. Mobility patterns or economic networks that may have resulted in such diverse geochemical data are discussed. The paper also discusses the multi-statistical approach to evaluating data in order to determine provenance. The findings and their narrative are discussed in the historical framework of the ‘Celtic migrations’ in Europe in the 4th century BCE.
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The Egyptian Museum of the University of Leipzig has the largest university collection of ancient Egyptian artefacts in Germany. It includes important objects from the excavations of the most prolific excavator among the museum’s... more
The Egyptian Museum of the University of Leipzig has the largest university collection of ancient Egyptian artefacts in Germany. It includes important objects from the excavations of the most prolific excavator among the museum’s curators, Georg Steindorff, at the sites of Abusir, Aniba, and Giza, complemented by objects from Abydos, Thebes, and Kerma. The catalogue represents the results of an interdisciplinary project by Egyptologist and archaeologist Martin Odler, archaeometalurgist Jiří Kmošek and other participating researchers. A selection of 86 artefacts was analysed using a range of archaeometallurgical methods (X-ray fluorescence; metallography; neutron activation analysis; lead isotope analysis), providing a diachronic sample of Bronze Age Egyptian copper alloy metalwork from Dynasty 1 to Dynasty 19. Besides currently popular focus on the ore provenance, the selection of the applied methods aimed also at the description of practical physical properties of the objects. The question of differences between full-size functional artefacts and models is addressed, as is the problem of 'imports' and their ethnic interpretation. The analyses brought many unexpected results to light, the most surprising being a bowl (ÄMUL 2162) made of arsenical copper high in nickel, which has parallels in Chalcolithic and Early Bronze Age Anatolia, and was featured in an article in the Journal of Archaeological Science in 2018. The corpus presented here involves the largest analysed metalwork assemblage from the Nubian C-Group and the Egyptian New Kingdom, and it addresses the issue of the use of local Nubian ore sources versus the sources of copper from Cyprus and elsewhere.
Research Interests: Ancient History, Art, Bronze Age Archaeology, Nubian-Egyptian Relations, Archaeometallurgy, and 13 moreOld Kingdom (Egyptology), New Kingdom (Egyptology), Early Dynastic (Egyptian History), Ancient Nubia, Ancient Egypt, Bronze Age, Metallography, Metallography of Ancient Metals, Lead Isotope Analysis, Abusir, Giza, Neutron Activation Analysis, and Abusir Tombs
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The Old Kingdom of Egypt (Dynasties 4–6, c. 2600–2180 BC) is famous as a period of the builders of the largest Egyptian pyramids. It is generally accepted that the evidence on the use of copper alloy tools from this era is meagre. Martin... more
The Old Kingdom of Egypt (Dynasties 4–6, c. 2600–2180 BC) is famous as a period of the builders of the largest Egyptian pyramids. It is generally accepted that the evidence on the use of copper alloy tools from this era is meagre. Martin Odler gathers the textual, iconographic and palaeographic evidence and examines Old Kingdom artefacts in order to revise this view on the use of copper alloy tools and model tools. Furthermore, he provides updated definitions of tool classes and tool kits, together with the context of their use. Besides rare specimens of full-size tools, the largest corpora of the material have been preserved in the form of model tools in the burial equipment of the Old Kingdom elite and were most probably symbols of their power to commission and fund craftwork. Moreover, the size and elaboration of the model tools were probably connected to the social status of the buried persons. The long-standing division in the Egyptological literature between full-size tools and model tools is questioned. The ancient sources also enable to show that the preservation of material culture from the Old Kingdom was largely dependent on a conscious selection made within the past culture, with completely different settlement and funerary contexts and a conspicuous absence of weapons. The volume is completed by co-authored case studies on archaeometallurgy of selected Old Kingdom artefacts in the collection of the Egyptian Museum of Leipzig University, on morphometry of Old Kingdom adze blades and on the finds of stone and ceramic vessels associated with the findings of so-called Old Kingdom model tools. The book can be purchased here: http://www.archaeopress.com/Public/displayProductDetail.asp?id=%7BDED38ACF-A714-4454-8448-4C8C91A92F43%7D
Research Interests: Geography, Geometric Morphometrics, Funerary Archaeology, Archaeometallurgy, Ancient Egyptian History, and 15 moreAncient Egyptian Art and Archaeology, Craft Specialization, Arts and Crafts, Old Kingdom, Early Bronze Age, Copper, Early Bronze Age Archaeology, Archaeometallurgical Researchs, Archaeometallurgy of Copper, Ancient Egyptian Iconograpy, Metal tools, ancient Egypytian pyramids, Landmark based geometric morphometrics, Kingdom, and Early Copper Metallurgy
Research Interests: History, Ancient History, Archaeology, Egyptology, Geochemistry, and 15 moreArchaeological Science, Anatolian Archaeology, Egyptian Archaeology, Bronze Age Archaeology, X-Ray Fluorescence (XRF) Spectroscopy, Archaeometallurgy, Predynastic and Early Dynastic Egypt, Metallography, Early Bronze Age, Early Bronze Age Archaeology, Metallography of Ancient Metals, Lead Isotope Analysis, Neutron Activation Analysis, Egyptian Predynastic and Early Dynastic, and Kingdom
The study deals with a material survey and determination of the corrosion character of a Roman bronze vessel from an early Tiberian period. The ancient technology of the bronze vessel production was determined based on the evaluation of... more
The study deals with a material survey and determination of the corrosion character of a Roman bronze vessel from an early Tiberian period. The ancient technology of the bronze vessel production was determined based on the evaluation of structural properties of the material using the prepared metallographic sections. The vessel was produced by combining the technologies of beating and metal embossing in a pre-cast bronze piece, side ornaments were cast from bronze. Chloride anions were identified along the material grains. It was identified that the mixture of corrosion products covering the surface of the vessel contained, in addition to other elements, basic copper chloride. The presence of chloride anions, atmospheric humidity and mechanical stress lead to corrosion of the bronze vessel called the bronze disease. The material in the upper part of the vessels lost cohesion completely and the neck of the vessel broke as a result of the corrosion process. The vessel was desalinated ...
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Abstract This study deals with the remains of metal objects from the settlement of workers living and labouring at the Egyptian site of Giza in the reigns of Dynasty 4 Kings Khufu and Khafra (c. 2500–2450 BCE). It provides the first... more
Abstract This study deals with the remains of metal objects from the settlement of workers living and labouring at the Egyptian site of Giza in the reigns of Dynasty 4 Kings Khufu and Khafra (c. 2500–2450 BCE). It provides the first detailed set of data on copper tools of the craftspersons working with wood, limestone, textile, etc., focusing on the major and trace element analyses, lead isotopes and microstructural description. Arsenical copper is again confirmed as a material practically used in the Old Kingdom, with arsenopyrite from Eastern Desert proposed as a source of arsenic. The CuAgAs needle 20966 has similar lead isotopes as two pieces of Predynastic Egyptian metalwork and litharge from late Uruk site Habuba Kabira (Syria), being probably a recycled specimen of earlier material connected to silver production. With 15 objects analysed in detail, it is for now the largest Old Kingdom corpus of metal objects from the settlement context.
Research Interests: Geography, Archaeology, Near Eastern Archaeology, Bronze Age Archaeology, Predynastic (Egyptology), and 13 moreOld Kingdom (Egyptology), Predynastic and Early Dynastic Egypt, Ancient Egyptian History, Settlement archaeology, Ancient Egyptian Art and Archaeology, Ancient Near Eastern archaeology, Early Bronze Age Archaeology, Lead Isotope Analysis, Giza, Neutron Activation Analysis, ancient Egypytian pyramids, Predynastic Naqada, and Kingdom
The study contributes to knowledge of the Bronze Age tin bronze production process based on the testimony of metal raw materials. This concerns evidence of metallurgical activities both in the form of semi-finished products/ingots and... more
The study contributes to knowledge of the Bronze Age tin bronze production process based on the testimony of metal raw materials. This concerns evidence of metallurgical activities both in the form of semi-finished products/ingots and waste generated during production activities. Metal raw materials of a diverse nature, function and provenance occur in various contexts throughout most of the Bronze Age. Besides material analyses, metal raw materials originating in Bohemia have not yet received comprehensive systematic attention, especially in terms of their detailed description and the resulting data to assess types of products. The research focused on a study of the formal properties of metal raw materials, categories of smelting and casting products within the operational chain of bronze metallurgy and patterns of organisational and technological treatment in various space and time contexts. Both classical archaeological methods of documentation and scientific analytical methods w...