Triangular-headed iron projectile point (SF 09-033) with a slightly squared base (left ) and a short 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 close to several anvil/grinding stones in an area (mound 6) that archaeologists interpret as a metallurgical workshop. The projectile point shows signs of corrosion by rusting. Scale in cm. Length: 8.1 cm. Weight: 9.3 g. Site Ngre Kataa. 30 May 2009.
A curved iron blade (brɔfiɛn in Nafaanra), rounded at the tip (left), slightly shouldered at the base, with a long tang (right) for the purpose of hafting. The tool shows signs of corrosion. The artfiact was excavated from a house mound and found in a level of midden-like deposits. Scale in cm. Length: 11.2 cm. Weight: 11.7 gm. Site Kuulo Kataa. 14 June, 1995.
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
A piece of a copper alloy (brass) bar, found in association with burned features that archaeologists interpret as linked to metalworking (left: side view; right, end views). The bar is square in cross-section (right). One end appears finished and has a slight circular depression or dimple (bottom right). The other end (top right) is jagged and appears to be broken from a longer bar. The artifact was recovered from soil associated with an amorphous burned feature, underneath which were a series of burned basins likely created by forging activities. The object is similar in appearance to brass bars known from the Ma'adin Ijafen cache of brass ingots documented by Theodore Monod in eastern Mauritania in the 1960s. As such, this may be the form in which metalworkers got the copper alloys that were worked at the site. Length: 1.7 cm. Weight: 2.8 g. Scale in cm. Site Ngre Kataa. 25 June 2009.
A cluster of burned features is exposed in the northwest corner of excavation unit 50N 8W in an area interpreted by archaeologists as a metallurgical workshop (mound 6). Along the unit's west wall (left in photo) is an amorphous zone of fire-hardened red (Munsell color 2.5YR 3/6) matrix. A piece of brass bar (SF NK 09-293) was found in soil associated with this burned feature. Above and to the right (northeast), two circular burned features are visible in outline. These basin-shaped features had a thin lining of fire-hardened sediment, red to dark red (Munsell 2.5 YR 3/6 & 4/8) in color. The basins were filled with loose ashy sediment and small pieces of charcoal. A sample of burned matrix from feature 1 (top right basin) yielded a thermoluminescence (TL) age estimate of 1500 +/- 40 CE (Univ. Wash. 2455). Further excavation revealed additional basin-shaped features beneath the amorphous burned feature. The excavation unit's northwest corner peg is visible, upper left. View looking north. Site Ngre Kataa. 27 June 2009.
A cluster of burned basin-shaped features is exposed in the northwest corner of unit 50N 8W in an area interpreted by archaeologists as a metallurgical workshop (mound 6). The basins comprised a thin layer of fire-hardened sediment, red to dark red (Munsell colors 2.5 YR 3/6 & 4/8) in color. Basin features 1 (top right) and 2 (left of feature 1) measured about 8-9 cm deep and were filled with ashy soil. Basin feature 5 (far left) was shallower. Its fire-hardened surface showed a pinkish tinge. Samples of burned basin matrix from features 1 and 5 yielded thermoluminescence (TL) age estimates of 1500 +/- 40 CE (feature 1; Univ. Wash. 2455) and 1580 +/- 40 CE (feature 5; Univ. Wash. 2456). Photo bar marked in 5 cm increments. Arrows pointing north. Site Ngre Kataa. 29 June 2009.
A boulder used as an anvil stone (GS 09-07) sits insitu in an excavated area interpreted as a metallurgical workshop. A black-and-white photo scale stick stands vertically against it. The boulder's upper surface shows signs of use wear and its north-facing side is marked by a cup-shaped depression that resulted from repeated use. To the north (left), a fist-sized hammer stone (GS 09-09) rests insitu on a pedestal of soil left in place as the unit was excavated. Two stones showing evidence of use as grinding stones sit nearby, a north arrow placed by one(GS 09-10; center photo) and one in the southwest corner of the excavation unit (GS 09-08; bottom right). Another insitu anvil stone (GS 09-6) sits in the northeast corner of an adjacent excavation unit (48N 0W; top right of photo). The narrow band of loose soil angled across the southwest corner of the excavation was created by a burrowing animal. Photo stick and small arrow scale in 5 cm intervals. Photo scale arrows pointing north. Site Ngre Kataa. 2 June 2009.
A boulder used as an anvil stone (GS 09-01) sits insitu in an excavated area interpreted as a metallurgical workshop. This was one of several boulders associated with burned features and other residues of metalworking. The boulder's upper surface showed signs of use wear and its south-facing side is marked by a deep cup-shaped depression that resulted from repeated use. A burned feature interpreted as the remains of a forge is visible behind the anvil stone (upper left) in the northwest corner of excavation unit 50N 2W. Flat photo scale in cm. Arrow pointing north. Site Ngre Kataa. 1 June 2009.
Excavations uncovered three insitu boulders placed in a row that were used as anvil stones in an area interpreted as a metallurgical workshop. Multiple surfaces of the boulders show signs of wear caused by hammering and grinding. Repeated use of the anvil stone in the foreground (GS 09-03) has created a clear depression on its upper surface and its left side is flattened by wear. The middle anvil stone (GS 09-02) has multiple depressions created by use on its upper surface. The anvil in the rear of the photo (GS 09-01) shows wear on its top and side surfaces, with dirt still embedded in a deep cup-shaped depression on its south-facing side in this photo. To the east (right) of the boulder in foreground, the flat surface of a grinding stone (GS 09-04) is visible in the east wall of the excavation unit. A broken pedestal base of a pot sits on its side to the east (right) of the middle anvil stone. In the upper left corner of the photo, a burned feature interpreted by archaeologists as the remains of a forge has been exposed. The red-and-white band above the photo sign is a two meter scale, marked in 10 cm increments. View looking north across two exavation units: 50N 2W (top of photo) and 48N 2W (bottom of photo). The 2x2m units have been excavated to slightly different depths. Site Ngre Kataa. 1 June, 2009.
A flat, thin iron disk. The object is corroded by rust. Its function is unknown. The disc was found in close association with a large anvil or grinding stone and adjacent to a distinctive pottery vessel and a smaller, irregularly shaped piece of flat iron (SF 09-171). This group of objects was located within an area (mound 6) that archaeologists interpret as a metallurgical workshop. Scale in cm. Width: 9.4 cm. Thickness: .2 cm. Weight: 49.3 g. Site Ngre Kataa. 4 July 2009.
A flat, irregularly shaped iron with circular depression. The object is corroded by rust and its original form and function are unknown. It was found in close association with a large anvil or grinding stone (GS 09-15), a circular iron disk (SF 09-370) and a distinctive pottery vessel (NK 09-787). This group of objects was located within an area (mound 6) that archaeologists interpret as a metallurgical workshop. Scale in cm. Width: 5.7 cm. Thickness: .2 cm. Weight: 9 g. Site Ngre Kataa. 4 July 2009.
Two views of a burned basin-shaped feature (Feature 2) in mound 6, unit 46N 2W, part of an area that archaeologists interpret as a metallurgical workshop. The feature has been sectioned to reveal its profile. Viewed from the top, the circular feature consists of a ring of fire-hardened yellowish red (Munsell color 5YR 5/8) sediment. The fire-hardened matrix is thicker at its top edge than it is at the bottom of the basin, where its color is dark red (Munsell 2.5YR 3.6). In profile view (second photo), the basin appears as a narrow band of yellowish red fire-hardened sediment. The fire-hardened sediment is thin and rounded at the base of the basin, suggesting that it may have formed around a round-based vessel used to heat metals. A thermoluminescence sample of the burned matrix yielded a date of 1490 +/- 50 years (Univ. Wash. 2364). Photo scale in cm. Site Ngre Kataa. 23 June 2009.
The south wall of excavation unit 50N 0W in mound 6 shows stratified layers that accumulated in an area interpreted as a metallurgical workshop. An anvil stone (GS 09-06; left of the sign board) is pedestaled insitu in the adjacent excavation unit (48N 0W). Other pedestaled grinding stones are visible to the right and behind the sign board. These stones were found just below the mound's top surface. A smaller grinding/anvil stone is visible in the east wall of unit 50N 0W, at a depth of one meter below the anvil stone. Burned orange-red lenses that archaeologists interpret as features associated with processing metals are visible in the strata between the stones. Ashy lenses are visible in the south and west walls. Evidence suggests that these layers built up through repeated use of this location for metalworking activities. Width of unit: 2 meters. Site Ngre Kataa. 9 July 2009.
View across four excavation units, looking west across an area interpreted as a metallurgical workshop. An anvil stone (GS 09-01) sits insitu in the foreground in unit 50N 2W. In the northwest corner of the same unit (below the roll of red flagging tape, right), the remains of a partially excavated burned feature interpreted as a forge are visible. A pottery jar (NK 09-686), lidded with a broken rounded base of another pot, is visible in the next unit (50N 4W). It sits adjacent to another burned feature in the unit's northwest corner (behind the pot, not visible in this photo). The jar is overlaid by another burned feature (visible as a layer of orange soil). A second pot (NK 09-685), to the left of the first, is covered by a flat stone (GS 09-13) whose lower surface shows evidence of grinding. A larger flat U-shaped grinding stone (GS 09-12) sits insitu atop a soil pedestal in the northeast corner of the next unit (50N 6W). To the south (left) of the stones, a partially exposed jar rim (NK 09-749) is visible close to the eastern edge of unit 50N 6W). Behind it, a large anvil/grinding stone (GS 09-15; faintly visible because it blends into the surrounding soil color) is partially exposed, with a smaller hammer/grinding stone (GS 09-16) sitting in front and left (south) of the large stone. A smaller grinding stone (GS 09-19; upper left of photo) has been pedestaled insitu in the farthest unit (50N 8W). Subsequent excavations in unit 50N 8W revealed a series of burned features in its northwest corner. A two meter yellow tape is extended along the edge of unit 50N 4W (right). Site Ngre Kataa. 24 June 2009.
Rights:
Creative Commons Attribution-NonCommercial
Publisher:
University of Victoria Libraries
Provenance:
Ngre Kataa, Mound 6, Units 50N, 2 to 8 W, various levels
A boulder used as an anvil stone (GS 09-07) sits insitu in an excavated area interpreted as a metallurgical workshop. A black-and-white photo scale stick stands vertically against it. The boulder's upper surface shows signs of use wear and its north-facing side is marked by a cup-shaped depression that resulted from repeated use. To the north (left; center photo), a fist-sized hammer stone (GS 09-09) rests insitu on a pedestal of soil left in place as the unit was excavated. Another stone that shows evidence of use as a grinding stone sits nearby (GS 09-10; left in photo). The narrow band of loose soil angled across the southwest corner of the excavation unit (right of photo) was created by a burrowing animal. Photo stick and small arrow scale in 5 cm intervals; large arrow in 10 cm intervals. Photo scale arrows pointing north. Site Ngre Kataa. 2 June 2009.
Three burned features are visible at the base of level 6 in unit 46N 2W. Two circular features (F1, right & F2, left) have been cross-sectioned, creating a straight edge. Burned feature 3 is an irregularly shaped (rectangular) area pedestaled on the east (right) side of the excavation unit. Along the unit's west wall (left) is an unexcavated rectangular area. Within this matrix was a perforated pot (NK 09-789) lidded with the pedestal base from another pot. The perforated pot contained cowries and small fragments of iron. In units to the north (behind), a row of insitu anvil stones (GS 09-03, -09-02 and 09-01, near to far) is visible in units 48N 2W and 50N 2W. To the east (right) of these, a flat grinding stone (GS 09-08) and an anvil stone (GS 09-06) can be seen insitu in units 48N 0W and 50N 0W. A pottery jar (NK 09-790) rests insitu in the center of unit 50N 0W. To the left of the archaeologist in the blue shirt (Abass Iddrisu), a flat grinding stone (GS 09-12) and a pot (NK 09-685) lidded with a grinding stone (GS 09-13) are visible on the boundary between units 50N 4-6W. Excavation units measure 2 x 2 meters. Site Ngre Kataa. 24 June 2009.
Two views of a burned basin-shaped feature (Feature 2) in mound 6, unit 46N 2W, part of an area that archaeologists interpret as a metallurgical workshop. The feature has been sectioned to reveal its profile. Viewed from the top, the circular feature consists of a ring of fire-hardened yellowish red (Munsell color 5YR 5/8) sediment. The fire-hardened matrix is thicker at its top edge than it is at the bottom of the basin, where its color is dark red (Munsell 2.5YR 3.6). In profile view (second photo), the basin appears as a narrow band of yellowish red fire-hardened sediment. The fire-hardened sediment is thin and rounded at the base of the basin, suggesting that it may have formed around a round-based vessel used to heat metals. A thermoluminescence sample of the burned matrix yielded a date of 1490 +/- 50 years (Univ. Wash. 2364). Photo scale in cm. Site Ngre Kataa. 23 June 2009.
Partial iron projectile point, the tip of the head (left) broken off. The base of the head forms a right angle barb with the short tang. The tang (right) would have been inserted into a shaft made of bamboo, reed or lightweight wood to form an arrow. This point was found in an area (mound 7) that archaeologists interpret as a house mound. The artifact is corroded by rust. Scale in cm. Length: 9.1 cm. Weight: 13.6 g. Site Ngre Kataa. 4 June 2009.
Flat, thin iron disk (SF 09-159). The object is corroded by rust and its edges notched in two spots. Its function is unknown. The disc was found in a cluster (cluster D) with an iron bangle (SF 09-158) and two stones whose surfaces showed evidence of grinding. The cluster was part of a wider feature (clusters A-D) that archaeologists interpret as a shrine, which overlaid stratified deposits in a metallurgical workshop (mound 6). Scale in cm. Width: 8.1 cm. Thickness: .2 cm. Weight: 29.8 g. Site Ngre Kataa. 9 June 2009.
A tri-looped iron bangle (SF 09-158). The bangle was formed from a single round iron rod, looped three times at the top (detail, left). The rod is joined with a single twist at the base, with each end of the rod overlaid by a thin iron strap (bottom), causing slight thickening on either side of the twisted base. The bangle was found in close association with a flat iron disc (SF 09-159) and two stones whose surfaces showed evidence of grinding (cluster D). 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: 8.5 cm. Weight: 30.2 g. Ngre Kataa. 9 June 2009.
A large insitu anvil/grinding stone in an area interpreted by archaeologists as a metallurgical workshop. It is associated with several smaller stones that show signs of use as grinding or hammer stones. On the northwest side of the stone is a partial pottery vessel--unusual for its layered construction (NK 09-787). To the right of the partial pot are two flat iron discs (larger, above, SF 09-370 and smaller, below SF 90-371). The smaller grinding stone (upper left of photo) rested, grinding surface down, on top of a pottery jar (NK 09-788) which was exposed in the next excavation level. Photo scale bar in 5 cm increments. Photo arrow pointing north. Site Ngre Kataa. 4 July 2009.
A large insitu anvil/grinding stone in an area interpreted by archaeologists as a metallurgical workshop (two views). It is associated with several smaller stones that show signs of use as grinding or hammer stones. On the northwest side of the large stone (GS 09-15) is a partial pottery vessel--unusual for its layered construction (NK 09-787). Sitting adjacent to the partial pot are two flat iron discs (larger one, above in photo 1, SF 09-370 and smaller, below in photo 1, SF 90-371). A smaller grinding stone (GS 09-24) sits northeast of the anvil stone, positioned with its grinding surface down. It rested on top of a pottery jar (NK 09-788) which was exposed in the next excavation level. An area of fire-hardened sediment to the southeast of the anvil stone (photo 2) is interpreted as part of a forging feature. Photo scale bar in 5 cm increments. Photo arrow pointing north. Site Ngre Kataa. 4 July 2009.
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.
A group of insitu artifacts interpreted by archaeologists as a shrine cluster, located in a metallurgical workshop (mound 6). The cluster included a lost-wax-cast twinned figurine (bottom center), an iron bangle (center), a waterworn quartz pebble, a bone fragment (upper left of bangle), a broken iron blade (left of the bone fragment) and a tanged iron blade (upper left of the bangle). An irregularly shaped quartzite cobble (upper left) may have been part of the cluster. Photo scale in cm, arrow pointing north. Site Ngre Kataa. 19 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.
Photo of a pottery jar with a slightly everted rim (NK 08-406), found insitu in an area that archaeologists interpret as a metallurgical workshop. Above its rounded shoulder, the jar's surface is undecorated, with the possible exception of traces of red pigment in some areas. The jar's shoulder is decorated with a band of circular punctates interspersed with cross-hatched designs, repeated twice around the jar's circumference. Its base and lower body are surface treated with cord roulette in a zone bounded by a band of diagonal impressions which create a zigzag design ("/\/\"). The jar is fire-clouded in zones across its surface. The jar was found in the vicinty of a grinding stone (GS 08-10), a partial tuyere (NK 08-284) and a burned feature. Rim diameter at exterior lip: 20 cm. Vessel height: 19 cm. Site Ngre Kataa. 15 July 2008.
Excavations in units 42N 4W and 44N 4W have exposed clusters of pottery, grinding stones, tuyeres and an area of burned soil associated with metal working at mound 6, Ngre Kataa. Foreground, bottom right, are a partial pottery jar (NK 08-520) and a small flat grinding stone (GS 08-12; partially visible). 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. Two pottery vessels sit at a slightly lower level (NK 08-406). 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. Photo scale adjacent to burned feature marked in 5 cm intervals. View looking north. Site Ngre Kataa. 7 July 2008.
Wide view of excavation unit 44N 6W in an area (mound 6) that archaeologists interpret as a metallurgical workshop. Lower left, below the unit's corner stake (44N 6W), the partial rim of an everted jar (NK 08-408) has been pedestaled. It rests with its rim down. Between it and a large anvil stone (GS 08-25, center photo) is a smaller light-colored stone (GS 08-21) and piece of a jar rim. Another jar rim (NK 08-409) has been pedestaled in place to the left (east) of the anvil stone. Behind the anvil stone, an everted-rim jar (NK 08-407, photo stick in front) has been partially exposed. In the unit's center, to the right of the anvil stone, the rounded edge of a burned feature is visible. To the right (west) and in front (north) of that, a photo scale sits alongside an iron projectile point (SF 08-112). The soil around it has been dampened to aid excavation (dark circular area). To its right (west) is another piece of a worn grinding stone (GS 08-20). Visible in the adjacent units (left, east) is a grindstone (GS 08-10) which has been pedestaled in place and to its right a cluster of pottery and a tuyere (NK 08-284). View looking south. Photo bar marked in 5 cm intervals. Site Ngre Kataa. 7 July 2008.
An iron bangle (SF 08-182) made by coiling a flat iron rod with thinned pointed ends. The bangle was found in association with pottery, other bangles and artifacts (cluster A). Archaeologists interpret this context as part of a larger shrine feature (clusters A-D) that capped a metallurgical workshop. The bangle shows signs of corrosion by rusting. Scale in cm. Width: 8.2 cm. Weight: 38.8 cm. Site Ngre Kataa. 15 July 2008.
An iron bangle (SF 08-183) made from a spiral-twisted round iron rod with overlapping ends. The bangle was found in association with pottery, other bangles and a dog cranium and jaws (cluster B). Archaeologists interpret this context as part of a larger shrine feature (clusters A-D) that capped a metallurgical workshop. The bangle shows signs of corrosion by rusting. Scale in cm. Width: 9.5 cm. Weight: 115.5 g. Site Ngre Kataa. 15 July 2008.
Skilled craftsmen at the Centre for National Culture in Kumasi, Ghana demonstrate techniques of lost wax casting by making souvenir items like the brass bottle opener pictured here (bottom left). To the right (and top left) is a discarded lost-wax-casting mold that has been broken open to remove the finished objects. This mold produced two bottle openers. The inside of the mold shows the impressions left by the original wax models when they were encased in ashy clay (black matrix). Visbile toward the base of the casting mold are impressions of the tubes, out of which the melted wax drained and through which the molten brass was poured to fill the mold. Brass bottle opener height: 9 cm. Kumasi, Ghana. 4 July 2009.
A pottery lid (NK 09-626) is positioned vertically with its interior surface facing south. Above it (slightly right) is a poorly preserved, friable dog skull. A large tree root has been truncated above and left of the pot lid. Beneath the lid is an iron bangle (SF 09-219), angled upward. The bangle is pressed up against a dog mandible, which has been placed at a diagonal angle below the pot lid, its mandibular joint oriented upward. Several teeth remain in the mandible. A burned feature can be seen immediately below this assemblage of objects. This cluster (B, 11) was part of a larger set of clusters (A-D) that archaeologists interpret as a shrine in a metallurgical workshop. Photo scale at top in cm. Arrow pointing north. Site Ngre Kataa. 16 June 2009.
A pottery lid (NK 9 09-626) is positioned vertically with its interior surface facing south. Above it (slightly right) is a poorly preserved, friable dog skull. A large tree root has been truncated above and left of the pot lid. Beneath the lid is an iron bangle (SF 09-219), angled upward. The bangle is pressed up against a dog mandible, which has been placed at a diagonal angle below the pot lid, its mandibular joint oriented upward. Several teeth remain in the mandible. A burned feature can be seen immediately below this assemblage of objects. This cluster (B, 11) was part of a larger set of clusters (A-D) that archaeologists interpret as a shrine in a metallurgical workshop. Photo scale at top in cm. Arrow pointing north. Site Ngre Kataa. 16 June 2009.
A fragmented pottery lid (NK 09-626) is positioned vertically with its interior surface facing south. A large tree root is visible behind the lid, below the sign board. A dog cranium positioned above and an iron bangle placed below the lid have been removed. Additional excavation has exposed several pottery rim sherds below a dog mandible, which is positioned diagonally below the pot lid with its mandibular joint oriented upward. Several teeth remain in the mandible. A second less well-preserved dog mandible has been exposed below this. A burned feature can be seen immediately below this assemblage of objects. This cluster (B, 11) was part of a larger set of clusters (A-D) that archaeologists interpret as a shrine in a metallurgical workshop. Photo scale marked in 5 cm increments. Arrow pointing north. Site Ngre Kataa. 30 June 2009.
An iron bangle (SF 09-219) made from a round iron rod, its ends fused to create a continuous circle. The bangle was found beneath a pottery lid in a composition that included a dog cranium and jaw bones (cluster B/11). 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: 7.6 cm. Weight: 26.8 g. Site Ngre Kataa. 16 June 2009.
Rights:
Creative Commons Attribution-NonCommercial
Publisher:
University of Victoria Libraries
Provenance:
Ngre Kataa, Mound 6, Unit 48N 8W, Level 5. Piece plot: 108-112 cm S, 137-144 cm W, 108-110 cm bd
A barrel-shaped drawn glass bead (SF 08-234), opaque yellow in color. The bead is somewhat asymmetrical in shape and has angled ends. Compositional analysis of the bead (via LA-ICP-MS) showed it be made of mineral soda alumina (m-Na-Al) glass, probably produced in South Asia. The bead was found in the fill of a feature adjacent to a circular area of burned soil in a context (mound 6) that archaeologists interpret as a metallurgical workshop. Scale in cm. Length: 4.6 mm. Weight: 0.18 g. Site Ngre Kataa. 17 July 2008.
The body and base of a large pottery bowl has been exposed by exavation in unit 46N 8W. Surrounding this bowl was a cluster of sherds from other pottery vessels, now removed to expose several iron bangles of different shapes and sizes, seen insitu here. Between the bowl and the photo scale is an iron bangle (SF NK 08-169) formed from a spiral-twisted rod. Pedestaled to the right of the bowl (east) is an iron bangle (SF NK 08-140) made from a round rod that was coiled. Visible in the wall behind and to the right of the bowl (north) is a smalled coiled iron bangle made from a flattened piece of iron (SF NK 08-182). This cluster (A) was part of a larger cluster (A-D) of artifacts that archaeologists interpret as a shrine placed in a metallurgical workshop. Rootlets are visible in the wall and floor of the unit. View looking north. Photo scale in 5 cm increments. Site Ngre Kataa. 9 July 2008.
A tree that took root atop a shrine cluster has been cut back to a stump (center photo). Most of the objects in the shrine clusters (B-C) have been removed. To the left and below the tree stump, clusters of pottery (10 & 11) can be seen, including a red-colored pottery lid oriented vertically (cluster 11). An iron bangle, a dog cranium and dog mandibles were found associated with that lid. To the right (north) of the stump, a tri-looped iron bangle (SF 09-218) has been pedestaled (left of the black-and-white photo scale stick). The level above this had been covered by a cluster (cluster C) of pottery, including several pot lids, together with an iron bangle and a miniature pair of iron manacles. To the east and west, two large anvil stones are visible, one to the right (east) of the tree stump (GS 09-26) and one to the left (west, GS 09-32). To the left of the stump, a burned feature is visible below the pottery cluster (cluster 11). Photo scale bar marked in 5 cm increments. Arrow pointing north. Site Ngre Kataa. 16 June 2009.
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 pottery, other bangles and a dog cranium and jaws (cluster B). Archaeologists interpret this context as part of a larger shrine feature (clusters A-D) that capped a metallurgical workshop. 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.
Rights:
Creative Commons Attribution-NonCommercial
Publisher:
University of Victoria Libraries
Provenance:
Ngre Kataa, Mound 6, Unit 48N 8W, Level 2. Piece plot: 121-127 cm S, 140-150 S, 53-58 cm bd
An iron bangle (SF 09-147) fragment made from a flattened iron rod. The fragment is bent at an acute angle. It was found in association with a pottery lid, other pottery sherds, a dog cranium and jaw bones (cluster B). Archaeologists interpret this context as part of a larger shrine feature (clusters A-D) in a metallurgical workshop. The bangle fragment shows signs of corrosion by rusting. Scale in cm. Width: 7.1 cm. Weight: 9.3 g. Site Ngre Kataa. 9 June 2009.
Rights:
Creative Commons Attribution-NonCommercial
Publisher:
University of Victoria Libraries
Provenance:
Ngre Kataa, Mound 6, Unit 48N 8W, Level 2. Piece plot: 93 cm S, 144 cm W, 70-80 cm bd
An iron bangle (SF 09-170) made from a round iron rod with flattened ends. The bangle is open on one side (3/4 circle). The bangle was found in association with pottery, other bangles and 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: 8.2 g. Site Ngre Kataa. 10 June 2009.
A cluster of four large insitu anvil/grinding stones in an area (mound 6) that archaeologists interpret as a metallurgical workshop. The stone at the bottom of the photo (GS 08-06) was oriented with its grinding surface down (not, therefore, visible in the photo). The middle right stone (GS 08-07) also rested with its most-used grinding surface down. The largest stone (middle, left, GS 08-05) had no clear working surface. The stone at the back (GS 08-08) was associated with a fist-sized round quartz hammerstone, seen insitu slightly above. Later exavations (2009) revealed a perforated pot (NK 09-750), lidded with the base of another pot (NK 09-750), adjacent to but approximately 40 cm below this cluster in the next excavation unit. Photo scale in 5 cm increments. Arrow pointing north, view looking east. Site Ngre Kataa. 3 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 left of the hammerstone and above the right site of the photo stick. The feature is likely associated with forging activities. Photo scale at bottom marked in 5 cm intervals. View from above, north at top of photo. Site Ngre Kataa. 5 July 2008.
Photo of a pottery jar with a slightly everted rim (NK 08-406), found insitu in an area that archaeologists interpret as a metallurgical workshop. Above its rounded shoulder, the jar's surface is undecorated, with the possible exception of traces of red pigment in some areas. The jar's shoulder is decorated with a band of circular punctates interspersed with cross-hatched designs, repeated twice around the jar's circumference. Its base and lower body are surface treated with cord roulette in a zone bounded by a band of diagonal impressions which create a zigzag design ("/\/\"). The jar is fire-clouded in zones across its surface. The jar was found in the vicinty of a grinding stone (GS 08-10), a partial tuyere (NK 08-284) and a burned feature. Rim diameter at exterior lip: 20 cm. Vessel height: 19 cm. Site Ngre Kataa. 15 July 2008.
The body and base of a large pottery bowl has been exposed by exavation in unit 46N 8W. Surrounding this bowl was a cluster of sherds from other pottery vessels, now removed to expose several iron bangles of different shapes and sizes, seen insitu here. At the base of the photo, center, is an iron bangle (SF NK 08-169) formed from a spiral-twisted rod. Pedestaled to the right of the bowl (east) is an iron bangle (SF NK 08-140) made from a round rod that was coiled. Visible in the wall behind and to the right of the bowl (north; above the photo scale) is a small coiled iron bangle made from a flattened piece of iron (SF NK 08-182). A smaller bangle-like artifact lies directly above the pot, center photo (north; SF 08-139). This area (cluster A) was part of a larger cluster (clusters A-D) of artifacts that archaeologists interpret as a shrine placed in a metallurgical workshop. Rootlets are visible in the wall and floor of the unit. View from above, north at top of photo. Photo scale in cm increments. Site Ngre Kataa. 9 July 2008.
An iron bangle (SF 08-140) made by coiling a round iron rod with thinned pointed ends. The bangle was found in association with pottery, other bangles and artifacts (cluster A). Archaeologists interpret this context as part of a larger shrine feature (clusters A-D) that capped a metallurgical workshop. The bangle shows signs of corrosion by rusting. Scale in cm. Width: 8.8 cm. Weight: 40 g. Site Ngre Kataa. 9 July 2008.
An iron bangle (SF 08-139) made by coiling a flat iron rod. One end is pointed, the other squared. The bangle was found in association with pottery, other bangles and artifacts (cluster A). Archaeologists interpret this context as part of a larger shrine feature (clusters A-D) that capped a metallurgical workshop. The bangle shows signs of corrosion by rusting. Scale in cm. Width: 6.1 cm. Weight: 21.3 g. Site Ngre Kataa. 9 July 2008.
An iron bangle (SF 08-169) made from a round iron rod that has been spiral-twisted. The bangle's ends are flattened and overlap slightly. The bangle was found in association with pottery, other bangles and artifacts (cluster A). Archaeologists interpret this context as part of a larger shrine feature (clusters A-D) that capped a metallurgical workshop. The bangle shows signs of corrosion by rusting. Scale in cm. Width: 9.1 cm. Weight: 96.8 g. Site Ngre Kataa. 14 July 2008.