Studies of the Late Bronze Age copper-based ingots found in Greece

2000 ◽  
Vol 95 ◽  
pp. 207-217 ◽  
Author(s):  
Helen Mangou ◽  
Panayiotis V. Ioannou
Keyword(s):  
Chemical Composition ◽  
Bronze Age ◽  
Atomic Absorption Spectroscopy ◽  
Pure Copper ◽  
Late Bronze Age ◽  
Slow Cooling ◽  
Metallographic Examination ◽  
Aegean Region ◽  
Chemical Content ◽  
Different Origin

Seven bun type, one slab type, and 44 oxhide type Late Bronze Age ingots found in the Aegean region, Crete and Mainland Greece have been analysed for their chemical content (twelve elements) by atomic absorption spectroscopy. The results show that the ingots contain variable amounts of oxygen as copper(I) oxide. The oxhide ingots are made of purer copper, the bun type are of relatively pure copper and bronze, while the slab type is bronze. The oxhide ingots from Crete may have a different origin from those found in the Aegean and in Mainland Greece because they have a different chemical composition. The metallographic examination of twenty ingots, three of bun and seventeen of oxhide type, revealed that they have been cast in open moulds, followed by slow cooling. Microanalyses of inclusions in fifteen ingots revealed the presence of copper(I) sulphide, copper(I) oxide, copper-iron and copper-iron-sulphur and their origin is discussed. Hardness measurements on fourteen ingots of various types revealed that they are somewhat harder for a cast object than control alloys and likely explanations are given.

On the Chemical composition of prehistoric Greek copper-based artefacts from Crete

1998 ◽  
Vol 93 ◽  
pp. 91-102 ◽  
Author(s):  
Helen Mangou ◽  
Panayiotis V. Ioannou
Keyword(s):  
Bronze Age ◽  
Absorption Spectrometry ◽  
Early Bronze Age ◽  
Late Bronze Age ◽  
Equal Frequency ◽  
Metallographic Examination ◽  
Chemical Content ◽  
Middle Bronze Age ◽  
Arsenical Copper ◽  
The Bronze Age

110 copper-based objects from various sites on Crete, covering the whole of the Bronze Age, were analysed for their chemical content (12 elements) by Atomic Absorption Spectrometry. The results indicate that during the Early Bronze Age arsenical copper was mainly used while in the Middle Bronze Age copper, arsenical copper, and arsenical bronze were in use with about equal frequency. During the Late Bronze Age normal bronze was used when required. The copper technology in each era was the same at all of the sites examined. Metallographic examination of four triangular daggers of the Early Bronze Age showed that they had been cast. In the case of three Late Bronze Age hydriae, the component sheets had been hammered and annealed.

On the Chemical Composition of Prehistoric Greek copper-based artefacts from the Aegean region

1997 ◽  
Vol 92 ◽  
pp. 59-72 ◽  
Author(s):  
Helen Mangou ◽  
Panayiotis V. Ioannou
Keyword(s):  
Bronze Age ◽  
Pure Copper ◽  
Absorption Spectrometry ◽  
Late Neolithic ◽  
Aegean Region ◽  
Chemical Content ◽  
Middle Bronze Age ◽  
Copper Metallurgy ◽  
Arsenical Copper ◽  
Of Greece

Thirty-nine copper-based objects from the Aegean region of Greece, covering the Late Neolithic, Early and Late Bronze Ages, but excluding the Middle Bronze Age, were analysed for their chemical content (twelve elements) by atomic absorption spectrometry. The results show that there was a gradual shift in copper metallurgy from pure copper (Late Neolithic), to arsenical copper (Early Bronze Age), to bronze (Late Bronze Age). The results tend to indicate that the same type of copper metallurgy existed throughout the Aegean in each period.

On the chemical composition of prehistoric Greek copper-based artefacts from mainland Greece

1999 ◽  
Vol 94 ◽  
pp. 81-100 ◽  
Author(s):  
Helen Mangou ◽  
Panayiotis V. Ioannou
Keyword(s):  
Bronze Age ◽  
Pure Copper ◽  
Early Bronze Age ◽  
Neolithic Period ◽  
Late Neolithic ◽  
Metallographic Examination ◽  
Chemical Content ◽  
Cold Worked ◽  
Arsenical Copper ◽  
The Bronze Age

170 copper-based objects from various sites in mainland Greece covering the Late Neolithic period and the whole of the Bronze Age have been analysed for their chemical content (twelve elements) by atomic absorption spectroscopy. The results indicate that at all sites during the Late Neolithic and Early Bronze Age relatively pure copper and arsenical copper were used, while during the Middle and Late Bronze Ages bronze dominated. Bronze objects of the Early Bronze Age were probably imported. Lead was not usually used to help casting. Metallographic examination of eight Late Neolithic, Early and Late Bronze Age hammered objects revealed that they have been cold-worked and annealed, most probably through several cycles.

3.2 ka BP Megadrought and the Late Bronze Age Collapse

2017 ◽  
Author(s):  
David Kaniewski ◽  
Elise Van Campo
Keyword(s):  
Bronze Age ◽  
Prime Factor ◽  
Eastern Mediterranean ◽  
Late Bronze Age ◽  
Southwest Asia ◽  
Aegean Region ◽  
Climate Shift ◽  
Dark Ages ◽  
Political Unrest ◽  
Mediterranean Archaeology

The collapse of Bronze Age civilizations in the Aegean, southwest Asia, and the eastern Mediterranean 3200 years ago remains a persistent riddle in Eastern Mediterranean archaeology, as both archaeologists and historians believe the event was violent, sudden, and culturally disruptive. In the first phase of this period, many cities between Pylos and Gaza were destroyed violently and often left unoccupied thereafter. The palace economy of the Aegean Region and Anatolia that characterized the Late Bronze Age was replaced by the isolated village cultures of the Dark Ages. Earthquakes, attacks of the Sea Peoples, and socio-political unrest are among the most frequently suggested causes for this phenomenon. However, while climate change has long been considered a potential prime factor in this crisis, only recent studies have pinpointed the megadrought behind the collapse. An abrupt climate shift seems to have caused, or hastened, the fall of the Late Bronze Age world by sparking political and economic turmoil, migrations, and famines. The entirety of the megadrought’s effects terminated the Late Bronze Age in the eastern Mediterranean.

THE CORROSION PROBLEMS IN HOUSEHOLD WATER HEATERS OF SABRATHA CITY

2020 ◽  
Vol 3 (2) ◽  
pp. 77-90
Author(s):  
Khalid H. Almadhoni ◽  
Mohammad A. Ammar
Keyword(s):  
Chemical Composition ◽  
Storage Tank ◽  
Ph Value ◽  
Galvanic Corrosion ◽  
Pure Copper ◽  
Low Carbon Steel ◽  
Heating Element ◽  
Low Carbon ◽  
Metallographic Examination ◽  
Water Heaters

The corrosion destructive action can reach the home of millions of people, thus costing a tremendous amount of money and causing a great inconvenience. With the up rise of brackish water in Sabratha city, corrosion can damage water heaters, pipe network, refrigerators and many more items found at homes. In addition, in the absence of adequate specifications, major failures of water heaters have been reported in the recent years creating a great deal of concern. This study investigated the reasons of water heaters failure, and the methods needed to overcome or limit such a problem. Three main components, which have a direct relationship with the corrosion phenomena of heaters, were studied namely water, heater storage tank and heating element cover. To achieve that a chemical analysis of water samples and an examination of the microstructure and the chemical composition of heater storage tank and the heating element cover were carried out. The results revealed that the likelihood of forming a scale of Ca CO3 increases with increasing temperature, salt concentrations and the PH value. The metallographic examination showed the presence of a ferrite-pearlite structure. The microstructural studies revealed the presence of un-equivalent distribution of carbon content responsible for galvanic corrosion. They also revealed that grain growth in Heat Affective Zone (H. A. Z.) was responsible for pitting type corrosion. The weld showed typical WIDMANSTAATEN structure. Chemical composition of the sample indicated that the structure belongs to the low carbon steel which is identical to ASM 1020, and that the cover of heating element is made of pure copper.

scholarly journals To the issue of tin bronzes over the area of the Dnieper-Don region in the late bronze age

2020 ◽  
pp. 13-17
Author(s):  
Ю.М. Бровендер
Keyword(s):  
Bronze Age ◽  
Chemical Elements ◽  
Raw Materials ◽  
Local Population ◽  
Pure Copper ◽  
Late Bronze Age ◽  
Copper Ore ◽  
Ancient Population ◽  
Geological Surveys ◽  
Tin Deposits

The paper is devoted to tin ores as an alloying impurity in the bronze production by the ancient population of the Dnieper-Don region in the Late Bronze Age. The eastern and western supply vectors providing the local population with both ore (cassiterite) and its products are considered. The author draws attention to the assumptions of some researchers not confirmed by geological surveys about the possibility of finding tin deposits in the Donbass and Krivoy Rog basin, which could probably have been developed in the Early Metal Age. An opinion was given regarding the production of bronze from copper ore with a high content of metals - impurities in the mineral phase and separately from polymetallic ore. In ancient times for the development of any mineral, its availability for development, as well as a great volume or high content of useful mineral in ore were indispensable conditions. Due to existing technologies, the requirements for minerals in antiquity were much higher than modern ones. On the issue of tin raw materials for bronze production of the ancient population of Ukraine, attention is drawn to the assumption, not yet confirmed by geological surveys of some researchers (S.I. Tatarinov,  D.P. Kravets, D.P. Nedopako) on the possibility of finding tin deposits in such ore-rich regions of Ukraine as the Donbass and Krivoy Rog. The experimental work carried out on the basis of ores of the Kartamysh ore occurrence have indeed confirmed the idea of chemical elements redistribution, when some metals decrease and others increase. This trend with reference to the results of spectral analyzes of Bakhmut ores, slags and products of the Donetsk Mining and Metallurgical Center, performed by E.N. Chernykh was noted by S.I. Tatarinov. However, to obtain bronze, a high percentage of bronze-forming impurities is required, including tin in the minerals. However, the copper and polymetallic ores of Donbass do not contain enough tin in the initial ore to produce tin bronze. A series of our experiments yielded just pure copper. Thus, the author reposes on the commune notion, according to which it is not possible to obtain bronze from copper ores of Donbass and bronze without on purpose input of the appropriate elements into the melt.

The Concept of Palestine: The Conception Of Palestine from the Late Bronze Age to the Modern Period

2016 ◽  
Vol 15 (2) ◽  
pp. 143-202 ◽  
Author(s):  
Nur Masalha
Keyword(s):  
Bronze Age ◽  
Old Testament ◽  
Political Geography ◽  
Classical Antiquity ◽  
Late Bronze Age ◽  
Collective Consciousness ◽  
Ancient History ◽  
Master Narratives ◽  
The Bible ◽  
School History

The Concept of Palestine is deeply rooted in the collective consciousness of the indigenous people of Palestine and the multicultural ancient past. The name Palestine is the most commonly used from the Late Bronze Age (from 1300 BCE) onwards. The name Palestine is evident in countless histories, inscriptions, maps and coins from antiquity, medieval and modern Palestine. From the Late Bronze Age onwards the names used for the region, such as Djahi, Retenu and Cana'an, all gave way to the name Palestine. Throughout Classical Antiquity the name Palestine remained the most common and during the Roman, Byzantine and Islamic periods the concept and political geography of Palestine acquired official administrative status. This article sets out to explain the historical origins of the concept of Palestine and the evolving political geography of the country. It will seek to demonstrate how the name ‘Palestine’ (rather than the term ‘Cana'an’) was most commonly and formally used in ancient history. It argues that the legend of the ‘Israelites’ conquest of Cana'an’ and other master narratives of the Bible evolved across many centuries; they are myth-narratives, not evidence-based accurate history. It further argues that academic and school history curricula should be based on historical facts/empirical evidence/archaeological discoveries – not on master narratives or Old Testament sacred-history and religio-ideological constructs.

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