A twinned lost wax cast copper alloy figurine from Ngre Kataa, Mound 6, Unit 44N 6W, Feature 5 cluster. Archaeologists interpret the Feature 5 cluster as a shrine placed among metalworking facilities. Height: 5.9 cm. Weight: 31.3 g. Ngre Kataa, 19 July, 2008.
Iron slag is formed as a byproduct of iron smelting. Here a large slag nodule has broken in half, revealing its interior texture. At the archaeological site of Ngre Kataa, large chunks of 'bubbly' slag like this were occasionally found in household and other contexts, away from areas otherwise associated with metal-working activities. Potters at the time of the site's occupation had begun to use crushed iron slag as a tempering agent in their potting clays, which may explain why large nodules were being carried and cached in areas away from metal-working locations. Ngre Kataa, June, 2008.
Tanged iron blade with pointed tip (left) and rounded shoulders. Two large concretions adhere to the blade's corroded surface. The tang (right) would have allowed the blade to be hafted to a wooden or bamboo shaft or handle. If hafted to a long shaft, it may have been used as a spear (chombo in Nafaanra). This artifact was found closely associated with a copper alloy twinned figurine, an iron bangle, a rounded quartz pebble and several other objects, which archaeologists interpret as a shrine cluster. The cluster was placed among metal-working features in a metallurgical workshop. Scale in cm. Length: 8.6 cm. Weight: 12.6 g. Site Ngre Kataa. 19 July 2008.
A circular iron bangle, made from a rounded iron rod with abutting ends (bottom of photo). The bangle's surface is corroded by rust. This artifact was found closely associated with a copper alloy twinned figurine, a tanged iron blade, a rounded quartz pebble and several other objects, which archaeologists interpret as a shrine cluster. The cluster was placed among metal-working features in a metallurgical workshop.Scale in cm. Maximum diameter: 8.1 cm. Weight: 75 g. Site Ngre Kataa. 19 July 2008.
Triangular-headed iron projectile point with a barb at the head's base (left) and a long tang (right). To make an arrow (snini in Nafaanra), the tang was inserted into a straight shaft made of bamboo, reed or lightweight wood to which it was hafted. This artifact was found in an area (mound 7) that archaeologists interpret as a house mound. The projectile point shows signs of corrosion by rusting. Scale in cm. Length: 9 cm. Weight: 9.2 g. Site Ngre Kataa. 7 July, 2008.
Triangular-headed iron projectile point with a single barb at the base of its head (left) and a long thin tang (right). To make an arrow (snini in Nafaanra), the tang was inserted into a shaft made of bamboo, reed or lightweight wood to which it was hafted. The artifact shows signs of corrosion. The point was excavated from a deep midden mound in an disturbed by a pig burrow. Scale in cm. Length: 12.4 cm. Weight: 14.2 g. Site Ngre Kataa. 25 June, 2008.
Triangular-headed projectile point with barbs on either side of the head's base (left). Its long tang (right) is bent. To make an arrow (snini in Nafaanra), the tang was inserted into a straight shaft made of bamboo, reed or lightweight wood to which it was hafted. This artifact was found in an area that archaeologists interpret as a metallurgical workshop. The projectile point shows signs of corrosion by rusting. Scale in cm. Length: 9.8 cm. Weight: 10.2 g. Site Ngre Kataa. 5 July, 2008.
Rights:
Creative Commons Attribution-NonCommercial
Publisher:
University of Victoria Libraries
Provenance:
Ngre Kataa, Mound 6, Unit 44N 6W, Level 3; piece plot: 67-71 cm S, 142-156 W
View from above of an insitu grinding stone (GS 08-03) and a pottery jar (NK 08-176) at the base of excavation level 3 in an area (mound 6) that archaeologists interpret as a metallurgical workshop. The grinding stone has a concave upper surface, partly obscured by unexcavated soil. Roots and rootlets are visible on the right side of the photo. Photo stick marked in 5 cm increments. Arrow pointing north. Site Ngre Kataa. 1 July 2008.
Photo of a globular pottery jar (NK 08-176) found in an area (mound 6) that archaeologists interpret as a metallurgical workshop. The pot was found sitting next to a large grinding stone (GS 08-03). The jar's lip is slightly everted and its upper surface is undecorated. A horizontal band of contiguous diagonal impressions marked in alternating directions ("/\/\") appears above the jar's rounded shoulder. Its lower body and base are darkened and surface treated with fiber roulette impression. Rim diameter: 18cm at exterior lip. Vessel height (base to rim): 17 cm. Photo scale in cm. Site Ngre Kataa. 1 July 2008.
Iron projectile point fragment. The elongated head (left) has a single barb at its base and a short tang (right). The point has been corroded by rusting. Scale in cm. Length: 11.3 cm. Weight: 14 g. Site Ngre Kataa. 26 June 2008.