melissa morel (14 resultados)

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Paperback. Condición: new. Paperback. From the 11th to the 14th century, a population known as the Rasikajy lived along the northeastern coast of Madagascar. They developed their own smelting technique. The presence of iron slag in this area had long been attested, but no detailed study had been carried out. Between 2017 and 2021, three excavation campaigns were carried out and several test pits were dug, thus updating our knowledge of this area of Madagascar. Approximately 150 slag heaps located between Vohemar and Cape Masoala were described and documented, representing about 450 tons of slag. All the remains are similar and are linked to a single smelting tradition based on the use of small pit furnaces dug into the sandy substratum, without any clay superstructure. Small lateritic concretions with remarkably high grades were used as ore. Short cylindrical tuyeres with a funnel-shaped perforation were used and connected to bellows. Frequently, these tuyeres were made by drilling a block of stone with a rotary tool. The Rasikajy smelting technique appears not to have derived from any other more sophisticated smelting tradition around the Indian Ocean. Rather, it seems to have independently emerged from basic smithing techniques. The study of the slag shows a poor control of the smelting process. It appears that iron production remained a sporadic and unspecialized activity. It is even likely that this production was insufficient to meet the local need for metal, and that they had to rely on imports through the Indian Ocean trade. From the 11th to the 14th century, a population known as the Rasikajy lived along the northeastern coast of Madagascar. The Rasikajy developed their own smelting technique, which is described in detail in this book. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.

Paperback. Condición: New. From the 11th to the 14th century, a population known as the Rasikajy lived along the northeastern coast of Madagascar. They developed their own smelting technique. The presence of iron slag in this area had long been attested, but no detailed study had been carried out. Between 2017 and 2021, three excavation campaigns were carried out and several test pits were dug, thus updating our knowledge of this area of Madagascar. Approximately 150 slag heaps located between Vohémar and Cape Masoala were described and documented, representing about 450 tons of slag. All the remains are similar and are linked to a single smelting tradition based on the use of small pit furnaces dug into the sandy substratum, without any clay superstructure. Small lateritic concretions with remarkably high grades were used as ore. Short cylindrical tuyeres with a funnel-shaped perforation were used and connected to bellows. Frequently, these tuyeres were made by drilling a block of stone with a rotary tool. The Rasikajy smelting technique appears not to have derived from any other more sophisticated smelting tradition around the Indian Ocean. Rather, it seems to have independently emerged from basic smithing techniques. The study of the slag shows a poor control of the smelting process. It appears that iron production remained a sporadic and unspecialized activity. It is even likely that this production was insufficient to meet the local need for metal, and that they had to rely on imports through the Indian Ocean trade.

Paperback. Condición: Brand New. 280 pages. 11.73x8.23x0.71 inches. In Stock.

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Condición: New. 2023. Paperback. . . . . .

Condición: New. 2023. Paperback. . . . . . Books ship from the US and Ireland.

Condición: New.

Paperback. Condición: New. From the 11th to the 14th century, a population known as the Rasikajy lived along the northeastern coast of Madagascar. They developed their own smelting technique. The presence of iron slag in this area had long been attested, but no detailed study had been carried out. Between 2017 and 2021, three excavation campaigns were carried out and several test pits were dug, thus updating our knowledge of this area of Madagascar. Approximately 150 slag heaps located between Vohémar and Cape Masoala were described and documented, representing about 450 tons of slag. All the remains are similar and are linked to a single smelting tradition based on the use of small pit furnaces dug into the sandy substratum, without any clay superstructure. Small lateritic concretions with remarkably high grades were used as ore. Short cylindrical tuyeres with a funnel-shaped perforation were used and connected to bellows. Frequently, these tuyeres were made by drilling a block of stone with a rotary tool. The Rasikajy smelting technique appears not to have derived from any other more sophisticated smelting tradition around the Indian Ocean. Rather, it seems to have independently emerged from basic smithing techniques. The study of the slag shows a poor control of the smelting process. It appears that iron production remained a sporadic and unspecialized activity. It is even likely that this production was insufficient to meet the local need for metal, and that they had to rely on imports through the Indian Ocean trade.

Taschenbuch. Condición: Neu. Neuware - From the 11th to the 14th century, a population known as the Rasikajy lived along the northeastern coast of Madagascar. They developed their own smelting technique. The presence of iron slag in this area had long been attested, but no detailed study had been carried out. Between 2017 and 2021, three excavation campaigns were carried out and several test pits were dug, thus updating our knowledge of this area of Madagascar. Approximately 150 slag heaps located between Vohémar and Cape Masoala were described and documented, representing about 450 tons of slag. All the remains are similar and are linked to a single smelting tradition based on the use of small pit furnaces dug into the sandy substratum, without any clay superstructure. Small lateritic concretions with remarkably high grades were used as ore. Short cylindrical tuyeres with a funnel-shaped perforation were used and connected to bellows. Frequently, these tuyeres were made by drilling a block of stone with arotary tool. The Rasikajy smelting technique appears not to have derived from any other more sophisticated smelting tradition around the Indian Ocean. Rather, it seems to have independently emerged from basic smithing techniques. The study of the slag shows a poor control of the smelting process. It appears that iron production remained a sporadic and unspecialized activity. It is even likely that this production was insufficient to meet the local need for metal, and that they had to rely on imports through the Indian Ocean trade.

Paperback. Condición: new. Paperback. From the 11th to the 14th century, a population known as the Rasikajy lived along the northeastern coast of Madagascar. They developed their own smelting technique. The presence of iron slag in this area had long been attested, but no detailed study had been carried out. Between 2017 and 2021, three excavation campaigns were carried out and several test pits were dug, thus updating our knowledge of this area of Madagascar. Approximately 150 slag heaps located between Vohemar and Cape Masoala were described and documented, representing about 450 tons of slag. All the remains are similar and are linked to a single smelting tradition based on the use of small pit furnaces dug into the sandy substratum, without any clay superstructure. Small lateritic concretions with remarkably high grades were used as ore. Short cylindrical tuyeres with a funnel-shaped perforation were used and connected to bellows. Frequently, these tuyeres were made by drilling a block of stone with a rotary tool. The Rasikajy smelting technique appears not to have derived from any other more sophisticated smelting tradition around the Indian Ocean. Rather, it seems to have independently emerged from basic smithing techniques. The study of the slag shows a poor control of the smelting process. It appears that iron production remained a sporadic and unspecialized activity. It is even likely that this production was insufficient to meet the local need for metal, and that they had to rely on imports through the Indian Ocean trade. From the 11th to the 14th century, a population known as the Rasikajy lived along the northeastern coast of Madagascar. The Rasikajy developed their own smelting technique, which is described in detail in this book. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability.

Taschenbuch. Condición: Neu. Iron Metallurgy in Northeastern Madagascar: | Study of Rasikajy Metallurgical Production between the 11th and 15th Centuries | Mélissa Morel | Taschenbuch | 280 S. | Englisch | 2023 | LIBRUM Publishers & Editors LLC | EAN 9783906897868 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.