An iron bangle (SF 08-184) made by coiling a flattened iron rod, its ends rounded and overlapping. The bangle was found in association with a concentration of artifacts, including pottery, other iron bangles, a dog skull and jaw bones (cluster B), that archaeologists interpret as part of a larger shrine feature (clusters A-D). This feature capped stratigraphic layers in a metallurgical workshop (mound 6). The bangle shows signs of corrosion by rusting. Scale in cm. Width: 6.9 cm. Weight: 39.2 g. Site Ngre Kataa. 15 July 2008.
An arc of orange-red burned features has been exposed in excavation units 46N 8W and 48N 8W in an area (mound 6) that archaeologists interpret as a metallurgical workshop. To the left (west), the body and base of a large pottery bowl (NK 08-522) has been pedestaled insitu. A number of iron bangles surrounded this bowl (cluster A) as part of a large shrine cluster (A-D) that extended into adjacent units (where the trunk of a small tree is visible, above left of the sign board). The base of this cluster was about 20-30 cm above the burned basins exposed in this photo. The everted rim of a pottery jar visible in the north wall of the excavation unit (top left) was part of an adjacent cluster (B) that also included iron bangles (SF 08-183 & 184). Center photo, flanked by a photo scale, the round rim of a pottery jar is visible in outline. To the right (east) of the burned features, two hammerstones rest insitu next to one another. To the north of the burned features (forward right of the sign board), a zone of white plaster-like sediment is visible. Red and white scale is two meters in length. Arrow pointing north. Site Ngre Kataa. 17 July 2008.
View looking northward of early stage excavations at mound 6, Ngre Kataa, an area that archaeologists interpret as a metallurgical workshop. Center view is of units 42-48N 4W. In foreground, excavations in units 42N 4W and 44N 4W ave exposed clusters of pottery, a grinding stones, tuyeres and an area of burned soil associated with metal working. Foreground, bottom right, are a partial pottery jar (NK 08-520) and to its right (east) a small flat grinding stone (GS 08-12; ). To the left (west), framed by photo scales, is a burned feature. Next to it sits a hand-held hammerstone (GS 08-11). Above (to the north), a cluster of pottery and a partial tuyere (NK 08-284) are visible along the boundary between excavation units (marked by stakes). To the right of that cluster (east), a grinding stone (GS 08-10) has been pedestaled where it was found, resting with its working surface face down. A whole pottery vessel sit at a slightly lower level (NK 08-406) a short distance away (south east). Top center of the photo, at the far end of the excavated area, a cluster of anvil stones is visible (GS 08-05 to 08) in excavation unit 46N 4W. Excavations in the adjacent unit (46N 2W) in 2009 revealed a perforated shrine pot resting at a slightly lower level next to these stones. Photo scale adjacent to burned feature marked in 5 cm intervals. View looking north. Site Ngre Kataa. 5 July 2008.
A small round stone (GS 08-11) rests insitu next to an irregularly shaped area of burned fire-hardened sediment in an area (mound 6) that archaeologists interpret as a metallurgical workshop. The stone has wear consistent with use as a hammerstone. The burned sediment was next to a circular area of soil that showed signs of oxidation through exposure to high heat. A small piece of copper alloy metal lies at the edge of the fire-hardened sediment, to the right (west) of the hammerstone. The feature is likely associated with forging activities. The narrow dark lines in the soil are traces of animal burrowing activity. Photo scale by sign board in cm increments. View from above, arrow pointing north. Site Ngre Kataa. 7 July 2008.
Excavations on the south edge of unit 44N 4W have exposed a cluster of insitu pottery and a tuyere fragment in an area (mound 6) that archaeologists interpret as a metallurgical workshop. Foreground, broken pieces of a pottery jar lie with their exterior surfaces facing down. Behind them and left rests a tuyere fragment (NK 08-284), its circular cross-section visible in front of the sign board. To the right (west) of this cluster is an area of dark reddened soil, one of many examples of burned soil in this area where metals were worked. This diffuse area of reddened soil extended underneath the sherd cluster, center photo. To the right, embedded in the balk behind the north arrow (to its south), the tip of a partial iron point (SF 08-159) is visible (right of the circular patch of dark soil). Photo scale in front marked in cm. Arrow pointing north. Site Ngre Kataa. 10 July 2008.
An iron"bangle" (SF 09-173) made from a flattened iron rod with rounded ends. The bangle is open on one side (1/2 circle). The bangle was found as part of a carefully laid set of objects that included an iron disc (SF 09-172) and iron spike (SF 09-174) among other artifacts (cluster B). Archaeologists interpret this context as part of a larger shrine feature (clusters A-D) in a metallurgical workshop. The bangle shows signs of corrosion by rusting. Scale in cm. Width: 5 cm. Weight: 10 g. Site Ngre Kataa. 10 June 2009.
An iron bangle (SF 09-148) made from a round iron rod that has been spiral-twisted. Its ends overlap and are rounded. The bangle was found placed on the inside surface of a pottery jar resting next to a pair of miniature iron manacles (SF 09-171), around which were other pottery rims and lids (cluster C). Archaeologists interpret this context as part of a larger shrine feature (clusters A-D) in a metallurgical workshop. The bangle shows signs of corrosion by rusting. Scale in cm. Width: 8.1 cm. Weight: 89.9 g. Site Ngre Kataa. 9 June 2009.
A tri-looped iron bangle (SF 09-218) made from a continuous round iron rod. A detail of the triple loop is shown, right. The bangle ends are thickened and held together by a wire clasp. The bangle was found beneath a cluster (cluster C) of pottery, which archaeologists interpret as part of a larger shrine feature (clusters A-D) in a metallurgical workshop. It rested in soil about 10 cm below a pedestal-handled pottery lid (NK 09-381) that was part of cluster C. The bangle shows signs of corrosion by rusting. Scale in cm. Width: 10.8 cm. Weight: 26.3 g. Site Ngre Kataa. 16 June 2009.
An arc of orange-red burned features is being revealed by excavations in units 46N 8W and 48N 8W in an area (mound 6) that archaeologists interpret as a metallurgical workshop. To the left (west), the body and base of a large pottery bowl (NK 08-522) has been pedestaled insitu. A number of iron bangles surrounded this bowl (cluster A) as part of a large shrine cluster that extended into adjacent units (where the everted jar rim is visible in the north wall, upper left). The base of this cluster was about 20-30 cm above the burned basins exposed in this photo. To the north of the burned features (forward right of the sign board), a zone of white plaster-like sediment is visible. Far right, archaeologist Abass Iddrisu uses a trowel to expose the contours of burned sediment in an adjacent excavation unit. Red and white scale is two meters in length. Arrow pointing north. Site Ngre Kataa. 16 July 2008.
A boulder used an an anvil stone (GS 09-03) sits insitu, center photo, in an area (mound 6) that archaeologists interpret as a metallurgical workshop. The surface facing the camera is worn flat and smooth from use. Its upper surface shows depressions created by use. Behind this boulder is a flat grinding stone (GS 09-04) with a very worn upper surface. Another boulder (GS 09-02) is visible left (north). Behind it the pedestal base of a pot is visible along the adjacent unit's southern edge. The moistened soil in front of the sign board marked by two orange pin flags marks the find spot of an iron point (SF 09-033). Photo scale along unit edge measures two meters. Arrow pointing north. Site Ngre Kataa. 30 May 2009.