Table 3 XRF results of beads classified as plant ash glass (wt % of elements. Ag, Cr and U reported in ppm)
Sample | Mg | Al | Si | K | Ca | Mn | Fe | Co | Ni | Cu | As | Sr | Sn | Sb | Pb | Cr | Ag | U | Bal |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Zhizo series | |||||||||||||||||||
Mag-z-db1* | 0.00 | 2.56 | 53.07 | 4.41 | 5.43 | 0.04 | 0.61 | 0.04 | 0.03 | 0.00 | 0.11 | 0.10 | 0.00 | 0.00 | 0.00 | 0 | 0 | 0 | 33.50 |
Mag-z-db2* | 3.11 | 4.56 | 48.55 | 1.87 | 3.73 | 1.87 | 0.83 | 0.10 | 0.05 | 0.10 | 1.66 | 0.01 | 0.03 | 0.10 | 5.91 | 0 | 206.59 | 0 | 27.59 |
Mag-z-db4* | 0.00 | 4.02 | 39.44 | 3.12 | 2.82 | 0.60 | 1.11 | 0.02 | 0 | 0.10 | 0.00 | 0.04 | 0.01 | 0.00 | 0.10 | 45.87 | 0 | 0 | 48.69 |
Mag-z-lb1* | 0.00 | 3.84 | 47.41 | 4.56 | 5.19 | 0.01 | 0.83 | 0.00 | 0 | 1.24 | 0.00 | 0.10 | 0.02 | 0.00 | 0.10 | 0 | 0 | 0 | 36.72 |
Mag-z-lb3* | 0.00 | 1.62 | 44.57 | 2.94 | 3.45 | 0.03 | 0.91 | 0.00 | 0 | 1.02 | 0.03 | 0.10 | 0.01 | 0.00 | 0.10 | 0 | 0 | 0 | 45.28 |
Mag-z-lb4* | 1.14 | 7.43 | 47.68 | 2.89 | 2.48 | 0.03 | 1.75 | 0.00 | 0 | 0.21 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 36.89 | 0 | 46.06 | 36.43 |
Mapungubwe oblates | |||||||||||||||||||
Mag-map-b1* | 0 | 2.43 | 38.93 | 1.21 | 3.03 | 7.89 | 1.31 | 0.00 | 0 | 0.00 | 0.10 | 0.00 | 0.00 | 0.00 | 0.61 | 0 | 0 | 0 | 44.49 |
Mag-map-b2* | 0 | 3.65 | 36.14 | 0.91 | 2.74 | 8.83 | 1.42 | 0.00 | 0 | 0.00 | 0.10 | 0.00 | 0.00 | 0.00 | 0.71 | 0 | 0 | 0 | 45.48 |
Mag-map-b3* | 0 | 6.65 | 41.33 | 3.93 | 1.92 | 0.00 | 2.52 | 0.00 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 65.1 | 0 | 39.53 | 43.65 |
Mag-map-db2* | 0 | 4.22 | 41.51 | 1.71 | 1.61 | 0.00 | 1.51 | 0.10 | 0 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 30.17 | 0 | 37.26 | 49.35 |
Mag-map-lb4* | 0 | 4.62 | 43.57 | 1.61 | 1.41 | 0.00 | 1.61 | 0.00 | 0 | 0.60 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0 | 0 | 41.06 | 46.59 |
Mag-map-lb5* | 0 | 5.13 | 45.77 | 2.41 | 1.81 | 0.00 | 1.71 | 0.00 | 0 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0 | 0 | 60.53 | 42.76 |
Mag-map-bg8* | 1.82 | 5.87 | 40.17 | 3.84 | 3.74 | 0.00 | 1.21 | 0.00 | 0 | 1.11 | 0.00 | 0.00 | 0.71 | 0.004 | 1.15 | 37.37 | 0 | 0 | 40.37 |
Mag-map-bg9* | 1.11 | 4.86 | 39.29 | 3.14 | 3.24 | 0.00 | 1.22 | 0.00 | 0 | 1.11 | 0.00 | 0.00 | 1.82 | 0.003 | 2.07 | 24.28 | 0 | 0 | 42.13 |
Mag-map-g11* | 1.01 | 7.18 | 47.71 | 2.53 | 2.53 | 0.20 | 1.72 | 0.00 | 0 | 1.92 | 0.00 | 0.00 | 0.10 | 0.00 | 0.44 | 0 | 62.17 | 133.71 | 34.67 |
Mag-map-y4* | 0 | 5.49 | 39.59 | 3.83 | 3.42 | 0.83 | 1.24 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 1.14 | 0.00 | 6.22 | 26.53 | 138.58 | 0.00 | 38.24 |
Mag-map-y5* | 3.03 | 5.04 | 23.83 | 2.40 | 8.20 | 0.13 | 0.63 | 0.00 | 0.13 | 0.00 | 5.55 | 0.00 | 0.38 | 1.13 | 49.05 | 166.72 | 408.82 | 0.00 | 0.50 |
Zimbabwe series | |||||||||||||||||||
Mag-zim-y1* | 6.19 | 3.16 | 23.36 | 0.38 | 4.17 | 0.13 | 0.38 | 0.00 | 0.13 | 0.00 | 7.95 | 0.00 | 0.13 | 0.38 | 53.66 | 0 | 443.36 | 0 | 0.00 |
Mag-zim-y2 | 2.21 | 6.11 | 40.46 | 3.48 | 4.00 | 0.84 | 1.05 | 0.00 | 0.00 | 0.11 | 0.11 | 0.00 | 2.11 | 0.00 | 10.33 | 0 | 233.94 | 0 | 29.19 |
Mag-zim-db2* | 0.00 | 6.55 | 42.64 | 2.32 | 1.92 | 0.00 | 2.02 | 0.10 | 0.00 | 0.00 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 42.36 | 0 | 60.89 | 44.35 |
Mag-zim-db3* | 0.00 | 2.23 | 44.43 | 2.94 | 4.76 | 0.00 | 0.91 | 0.30 | 0.20 | 0.00 | 0.51 | 0.10 | 0.00 | 0.00 | 0.30 | 0 | 0 | 34.03 | 43.32 |
Mag-zim-g4* | 4.64 | 6.37 | 24.27 | 0.66 | 3.05 | 0.13 | 0.40 | 0.00 | 0.13 | 0.80 | 6.23 | 0.00 | 0.04 | 0.00 | 53.32 | 0 | 347.12 | 0.00 | 0.00 |
Mag-zim-lb9* | 0.00 | 6.64 | 48.09 | 2.31 | 2.21 | 0.00 | 2.11 | 0.00 | 0.00 | 0.60 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0 | 0 | 67.12 | 38.03 |
Mag-zim-lb11* | 0.00 | 3.92 | 44.38 | 1.10 | 2.11 | 0.00 | 0.70 | 0.00 | 0.00 | 1.41 | 0.00 | 0.00 | 0.01 | 0.10 | 0.10 | 0 | 0 | 0.00 | 46.18 |