scholarly journals A possible source of raw material for ceramics from the area of the towns Yambol and Elhovo – preliminary results

2021 ◽  
Vol 82 (3) ◽  
pp. 265-267
Author(s):  
Tanya Stoylkova ◽  
Kristina Kostova ◽  
Philip Machev

The application of geological methods of investigation to archeological objects gives the necessary information about the source of materials (rocks, clays, etc.) for preparation of different tools during the Prehistoric time. Using XRF analyses of clays from natural outcrops along the valley of the Tundzha River and of ceramic vessels from the area of the towns of Yambol and Elhovo we found out that these vessels were prepared from clays from this region.

Author(s):  
Emilie Arnaud-Nguyen

This paper describes the preliminary results of my PhD research within the ERC pro­ject “HisTochText”. The aim is to perform macroscopic analyses of archaeological papers from the Pelliot Collection. They are stored in the National Library of France (Bibliothèque nationale de France). Most were discovered in the oasis kingdom of Kucha, inscribed in an ancient Indian writing, brāhmῑ. The language was unknown in France. Kucha was a meeting place for many influences both western and eastern, insofar as paper analysis seeks to determine technological influences and local adaptations. Macroscopic analyses rely on traces found in the material of the paper which may be the result of the many stages in the life of the document: the raw material, the manufacturing process, the conditions of use and the storage conditions, both ancient and modern. To this day 350 fragments have been observed. Little is known about papermaking in Central Asia. As a consequence, every shred of information must be examined in order to deter­mine the differences from and similarities to paper manufacturing in Xinjiang.


2019 ◽  
Vol 11 (8) ◽  
pp. 2333 ◽  
Author(s):  
Patrick Ryan Williams ◽  
Donna J. Nash ◽  
Joshua M. Henkin ◽  
Ruth Ann Armitage

Utilizing archaeometric methods, we evaluate the nature of production of feasting events in the ancient Wari state (600–1000 CE). Specifically, we focus on the fabrication of ceramic serving and brewing wares for the alcoholic beverage chicha de molle. We examine the source materials used in the creation of these vessels with elemental analysis techniques (INAA and LA-ICP-MS). We then assess the chemical traces of the residues present in the ceramic pores of the vessels to detect compounds indicative of the plants used in chicha production (DART-MS).While previous research has identified circumstantial evidence for the use of Schinus molle in the production process, this research presents direct evidence of its existence in the pores of the ceramic vessels. We also assess what this material evidence suggests about the sustainability of the feasting events as a mode of political interaction in the Wari sphere. Our evaluation indicates that regional resource use in the production of the ceramic vessels promoted locally sustainable raw material procurement for the making of the festivities. Likewise, drought resistant crops became the key ingredients in the beverages produced and provided a resilient harvest for chicha production that was adopted by successor groups.


2019 ◽  
Vol 5 (1) ◽  
pp. 31-45 ◽  
Author(s):  
Sara Tiziana Levi ◽  
Diego Calliari ◽  
Marta Arzarello ◽  
Valentina Cannavò ◽  
Andrea Di Renzoni ◽  
...  

AbstractWe present the preliminary results of the ongoing investigation of the obsidian from the Bronze Age village of San Vincenzo, Stromboli, Aeolian Islands, for the purpose of providing technological and typological characterization, and also provenance of the raw material, the latter with non-destructive p-XRF. Regarding provenance, the source of the raw material is likely to be neighbouring Lipari. It was transported to Stromboli and used mostly in a highly opportunistic manner and for the production of blade(let), non-bladelike tools (mainly scrapers) and micro bladelets. The obsidian distribution around the site shows concentration in both domestic and production areas.


2006 ◽  
Vol 54 (9) ◽  
pp. 69-79 ◽  
Author(s):  
G.R. Xu ◽  
J.L. Zou ◽  
Y. Dai

Dried sludge as additive for making ceramsite is a new effective approach for disposal of sludge. In this study sewage sludge, water glass and clay were chosen as the components, the optimal ratio of the components and the most appropriate conditions were obtained. The functions of primary components in the sintering process, porosity formation mechanism and solid phase reaction also have been discussed. The optimized process parameters were shown as follows: the ratio of dried sludge /clay (wt%) was 33%, ratio of adherent /clay (wt%) was 15%, sintering temperature was 1000 °C, sintering time was 10 min. Bulk density was 582 kg m−3, particle density was 1,033 kg m−3, water absorption was 9.5%, porosity was 43.7%. SEM, EDS, XRD and XRF analyses were also carried out. The results indicate that dried sludge as raw material is a good way for making ceramsite. Biological Aerated Filters (BAFs) with filter media of Guangzhou ceramsite, Jiangxi ceramsite, activated carbon and ceramsite (obtained in test) were selected to treat municipal wastewater. The average removal efficiencies of ceramsite (obtained in test) for turbidity, COD, SCOD and NH3-N were about 96.4%, 76.2%, 59.6% and 82.3% respectively and were higher than those of other ceramsites.


2021 ◽  
Vol 7 (1) ◽  
pp. 273-290
Author(s):  
Claudia Speciale ◽  
Kyle P. Freund ◽  
Sandro de Vita ◽  
Nunzia Larosa ◽  
Vincenza Forgia ◽  
...  

Abstract New investigations on Ustica (Palermo, Sicily) originated from the need to improve our knowledge of the island’s archaeological and environmental heritage. Through field surveys, particular attention was paid to human occupation in the Neolithic phases and focused on the less investigated southern side of the island. The systematic survey of the area of Piano dei Cardoni in 2018 brought to light a new Middle/Late Neolithic site, already partially documented in the literature. The island was settled for the first time during these phases, as also testified from the area of Punta Spalmatore. The presence of Serra d’Alto, incised dark burnished, and Diana styles suggests that the site and the archaeological assemblage dates from the mid to late 5th millennium BC, as confirmed by AMS dating. In addition to pottery, obsidian artifacts were also recovered, and a preliminary study of these materials is presented here. Portable XRF analyses on a sample of 41 obsidian artifacts, representing a high percentage of the lithic assemblage compared to chert tools, show that the provenance of the raw material is Gabellotto Gorge (Lipari) and Balata dei Turchi (Pantelleria). These results provide new insight into broader regional debates about obsidian technology and its exchange during the Neolithic and open an important consideration for sites that are far from the raw material sources.


2021 ◽  
Vol 33 (3) ◽  
pp. 116-124
Author(s):  
Mandryka P. ◽  
◽  
Senotrusova P. ◽  
Dedik A. ◽  
◽  
...  

The article presents the preliminary results of studying of the Pinchuga-6 burial ground in the Lower Angara region. This site is the first large necropolis of the late Iron Age to be explored in the region. 16 cremated burials on the side were recorded at the necropolis. Eventually 30 individuals of different ages were identified. The research revealed single children’s and adults’ burials, collective and paired complexes. In the collective complexes the remains of three or five people are buried. Based on the results the main features of the funeral ceremony were identified. Among the finds from the burial ground and the inter-burial ground space are weapons, tools, ceramic vessels, objects of Western Siberian cult casting and adornments. According to the analogy, the burial ground dates back to the second quarter of the 1st millennium AD. In addition materials of the Tashtyk and Late Kulai guises have been collected at the site along with local elements of the Lower Angara region. Keywords: Lower Angara region, finale of the Iron Age, burial ground, burial ceremony, funeral equipment, ceramics, dating, cultural connection


Author(s):  
Joana Belmiro ◽  
João Cascalheira ◽  
Célia Gonçalves

This study presents preliminary results from a technological analysis of lithic artefacts from the Mesolithic shellmidden of Cabeço da Amoreira (Muge, Portugal). The main goal was to understand the technological and raw material variability within the two main excavation areas of the site, in order to characterize the different occupation moments. A typological and attribute approach was used in the analysis. The results suggest a clear distinction of the lithic assemblages, associated with the sedimentary differences identified in the composition of the several layers. This separation can be found mostly in the frequencies of raw materials, cores and retouched tools.


2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Ivan BREZÁNI ◽  
Martin SISOL ◽  
Michal MARCIN ◽  
Maroš SÝKORA ◽  
Michal MAŤAŠOVSKÝ ◽  
...  

Magnesite ore with a low chalcopyrite – cobaltite mineralization was subjected to a series of separations designed to evaluate thepossible concentration of the two accessory minerals. Although the Cu-Co grade in the ore (> 0.01% Co, > 0.1% Cu) is significantlylower than the typical economic grades, content of the main valuable mineral for which the ore is mined and processed incombination with a listing of cobalt as a critical raw material, coupled with their higher price might compensate for the additionalbeneficiation stages. The ore was first crushed and subsequently classified to -100 μm and +100 -400 μm size fractions. The finefraction was upgraded by froth flotation processing in laboratory froth flotation cell. The coarser fraction was processed in severalseparation stages including gravity separation on shaking table, magnetic separation and corona electrostatic separation. The sameprocedure was also repeated with a higher-grade sample as a verification of the procedures. Preliminary results suggest that theaccessory minerals can be separated from the talc-magnesite ore and individual mineral concentrates with about 19% Co and 28%Cu were prepared. However, further work must be done to achieve desirable recoveries for the processing to be economically viable.


2021 ◽  
pp. 135-139
Author(s):  
Paweł Lis ◽  
Krzysztof Wasilczyk

Several pits, the remains of wood tar production using the so-called ‘vessel-less method’, were discovered in the Lublin region. They contained objects related to the early Middle Ages. These discoveries were used as the base for experiments run in 2013 in the experimental archaeology centre at Grodzisko Żmijowiska. The first experiment involved the acquisition of wood tar from birch bark, while the other attempts were aimed at extracting tar from pine stumpwood. The experiments were conducted in a shallow pit that was plastered with clay and had a small depression at its bottom used as a container for the tar, separated from the pit by a clay strainer. The raw material gathered in the pit was covered with a clay dome. When the dome was dry, it was slowly heated up with burning wood to the right temperature which was checked inside the dome with a thermocouple. Both processes were conducted successfully. The results were compared with experiments focused on the production of wood tar using the two-vessel method known in the early Middle Ages. The comparison showed that the vessel-less method is less economical due to the amount of fuel used and almost three times less efficient in terms of the raw material to final product ratio. However, it is very simple technically and allows the effective production of wood tar.


2020 ◽  
Vol 95 (1) ◽  
pp. 112-127
Author(s):  
Lubomír Prokeš ◽  
Zuzana Jarůšková ◽  
Jan Petřík ◽  
Marcin Frączek ◽  
Tomasz Kalicki

AbstractThe oldest silver artefact from north of the Alps was found on the territory of Czech Republic is Stollhoff-type disc found in Kotouč hill near Štramberk. Similar silver disc was recently excavated at Vanovice (Czech Republic). This paper was complied to answer these particular questions: 1. what was the origin of earliest silver artefacts in Central Europe, 2. when these artefacts were emerged, and 3. what raw material was used and how it was processed. To answer these questions, typological analysis of vessels, thermoluminescence (TL) dating, compositional analysis (performed by ED-XRF) and scanning electron microscopy were employed. According to shape of ceramic vessels accompanying silver artefact, the Vanovice hoard can be dated to the Baalberge phase of the Funnel Beaker Culture during the later Eneolithic. Attempt to date pottery by TL method was not successful. The local origin of the pottery and the Carpathian/East-Balkan source of metal suggest that the Vanovice silver disc and the accompanying pottery were made in different periods, largely because precious metals endure longer than pottery.


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