Depth | Mid-depth | MgO | Al 2 O 3 | SiO 2 | K 2 O | CaO | TiO 2 | MnO | Fe 2 O 3 | Carbon | Nitrogen | Sulfur | C/N | 14 C age | 1σ | δ 13 C | δ 15 Ν |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
(cm) | (wt%) | (wt%) | (years BP) | (‰ vs. PDB) | (‰ vs. Air) | ||||||||||||
0 to 2 | 1.0 | 3.0 | 10.5 | 46.6 | 3.4 | 2.8 | 0.91 | 0.17 | 7.5 | 1.3 | 0.00 | 0.3 | - | 1,350 | 40 | −18.0 | +6.6 (n = 2) |
2 to 4 | 3.0 | 2.4 | 9.1 | 53.4 | 2.9 | 2.8 | 0.78 | 0.11 | 6.5 | 1.6 | 0.00 | - | |||||
4 to 6 | 5.0 | 0.5 | 4.1 | 67.6 | 1.6 | 2.1 | 0.35 | 0.05 | 3.9 | 2.5 | 0.30 | 1.2 | 8.5 | +4.3 (n = 2) | |||
6 to 8 | 7.0 | 0.0 | 3.2 | 67.2 | 1.4 | 1.9 | 0.30 | 0.05 | 3.7 | 2.8 | 0.36 | 7.9 | 3,950 | 30 | −21.6 | +3.1 | |
8 to 10 | 9.0 | 0.7 | 5.9 | 59.3 | 2.2 | 2.5 | 0.50 | 0.07 | 5.0 | 2.3 | 0.27 | 1.6 | 8.7 | ||||
10 to 12 | 11.0 | 1.8 | 6.9 | 58.9 | 2.2 | 2.7 | 0.50 | 0.07 | 4.8 | 2.0 | 0.24 | 8.3 | 4,200 | 30 | −20.8 (n = 2) | +4.9 (n = 2) | |
12 to 13 | 12.5 | 1.4 | 6.2 | 60.7 | 1.9 | 2.6 | 0.43 | 0.07 | 4.3 | 1.9 | 0.23 | 1.2 | 8.1 | ||||
13 to 14 | 13.5 | 1.3 | 5.4 | 63.7 | 1.7 | 2.4 | 0.39 | 0.06 | 4.0 | 2.0 | 0.26 | 7.5 | |||||
14 to 16 | 15.0 | 1.7 | 7.0 | 58.3 | 1.9 | 2.9 | 0.45 | 0.07 | 4.8 | 0.7 | 0.00 | 1.1 | - | −19.3 | +5.9 | ||
16 to 18 | 17.0 | 0.0 | 2.0 | 67.2 | 1.0 | 1.8 | 0.21 | 0.04 | 3.0 | 2.3 | 0.27 | 8.7 | |||||
18 to 20 | 19.0 | 0.0 | 2.1 | 74.4 | 1.1 | 1.9 | 0.24 | 0.04 | 3.2 | 2.4 | 0.30 | 1.0 | 8.1 | 3,920 | 40 | −23.6 | +3.2 |
20 to 22 | 21.0 | 0.1 | 1.9 | 74.6 | 1.1 | 1.8 | 0.23 | 0.04 | 3.3 | 2.8 | 0.35 | 8.0 | |||||
22 to 24 | 23.0 | 0.3 | 3.8 | 65.8 | 1.5 | 2.1 | 0.31 | 0.05 | 3.9 | 3.1 | 0.37 | 1.5 | 8.5 | ||||
24 to 26 | 25.0 | 0.3 | 3.6 | 66.6 | 1.5 | 2.1 | 0.31 | 0.05 | 3.6 | 2.2 | 0.24 | 9.2 | 4,410 | 30 | −20.5 | +2.2 | |
26 to 28 | 27.0 | 0.2 | 3.3 | 70.9 | 1.4 | 2.0 | 0.29 | 0.05 | 3.6 | 3.2 | 0.38 | 1.3 | 8.3 | ||||
28 to 30 | 29.0 | 0.0 | 1.4 | 74.7 | 0.9 | 1.6 | 0.22 | 0.04 | 2.6 | 3.0 | 0.36 | 8.2 | −21.0 | +4.3 | |||
30 to 32 | 31.0 | 0.0 | 0.9 | 67.3 | 0.7 | 1.5 | 0.13 | 0.05 | 2.8 | 2.7 | 0.35 | 1.1 | 7.8 | ||||
32 to 34 | 33.0 | 0.0 | 3.0 | 64.6 | 1.3 | 2.0 | 0.30 | 0.06 | 3.7 | 2.4 | 0.30 | 8.0 | 4,630 | 30 | −21.0 | +4.8 | |
34 to 36 | 35.0 | 0.0 | 3.9 | 65.8 | 1.6 | 2.1 | 0.32 | 0.06 | 3.8 | 2.6 | 0.36 | 1.5 | 7.1 | −20.9 | +5.1 | ||
36 to 38 | 37.0 | 0.0 | 2.8 | 69.6 | 1.3 | 2.0 | 0.28 | 0.05 | 3.8 | 3.0 | 0.39 | 7.6 | |||||
38 to 40 | 39.0 | 0.1 | 3.1 | 71.9 | 1.3 | 2.0 | 0.30 | 0.05 | 3.7 | 2.4 | 0.32 | 1.1 | 7.5 | ||||
40 to 43 | 41.5 | 0.0 | 2.6 | 73.4 | 1.2 | 1.9 | 0.26 | 0.04 | 3.3 | 2.9 | 0.40 | 7.2 | −20.4 | +4.2 (n = 2) | |||
43 to 46 | 44.5 | 0.0 | 2.7 | 60.8 | 1.2 | 1.9 | 0.23 | 0.04 | 2.8 | 2.6 | 0.36 | 1.3 | 7.1 | ||||
46 to 49 | 47.5 | 0.6 | 4.4 | 65.6 | 1.7 | 2.1 | 0.37 | 0.06 | 3.6 | 3.5 | 0.43 | 8.0 | 4,540 | 40 | |||
49 to 52 | 50.5 | 1.0 | 6.1 | 62.6 | 2.0 | 2.3 | 0.46 | 0.06 | 4.0 | 2.7 | 0.31 | 1.0 | 8.8 | −21.2 | +5.8 | ||
52 to 55 | 53.5 | 1.1 | 6.8 | 59.0 | 2.2 | 2.5 | 0.51 | 0.07 | 4.2 | 2.3 | 0.28 | 8.1 | |||||
55 to 58 | 56.5 | 2.6 | 8.3 | 55.2 | 2.6 | 2.7 | 0.64 | 0.08 | 4.6 | 1.9 | 0.22 | 0.8 | 8.7 | ||||
58 to 61 | 59.5 | 1.8 | 8.1 | 55.6 | 2.6 | 2.7 | 0.62 | 0.08 | 4.5 | 2.4 | 0.24 | 9.9 | −21.1 | +5.7 | |||
61 to 64 | 62.5 | 0.2 | 3.3 | 72.0 | 1.3 | 1.9 | 0.27 | 0.05 | 2.9 | 2.8 | 0.36 | 0.9 | 7.9 | ||||
64 to 67 | 65.5 | 0.0 | 1.3 | 76.4 | 0.9 | 1.6 | 0.17 | 0.04 | 2.8 | 3.1 | 0.43 | 7.3 | |||||
67 to 70 | 68.5 | 0.0 | 1.5 | 76.4 | 0.9 | 1.7 | 0.18 | 0.04 | 2.8 | 3.0 | 0.40 | 1.1 | 7.6 | −21.2 | +5.4 | ||
70 to 75 | 72.5 | 0.0 | 0.7 | 79.0 | 0.7 | 1.5 | 0.14 | 0.03 | 2.1 | 3.8 | 0.50 | 7.7 | 5,220 | 40 | |||
75 to 80 | 77.5 | 0.0 | 0.5 | 78.5 | 0.6 | 1.5 | 0.12 | 0.03 | 2.0 | 2.8 | 0.34 | 0.7 | 8.4 | ||||
80 to 85 | 82.5 | 0.0 | 0.4 | 80.9 | 0.6 | 1.4 | 0.10 | 0.03 | 1.7 | 3.3 | 0.48 | 6.9 | −20.6 | +4.9 | |||
85 to 90 | 87.5 | 0.0 | 0.0 | 83.2 | 0.4 | 1.4 | 0.07 | 0.02 | 1.4 | 3.1 | 0.38 | 0.6 | 8.2 | ||||
90 to 95 | 92.5 | 0.0 | 0.3 | 82.1 | 0.5 | 1.4 | 0.09 | 0.02 | 1.6 | 2.9 | 0.35 | 8.3 | 5,520 | 90 | −21.2 | ||
95 to 100 | 97.5 | 0.0 | 0.2 | 80.9 | 0.6 | 1.5 | 0.11 | 0.03 | 1.7 | 3.1 | 0.37 | 0.7 | 8.3 | −21.8 | +4.5 | ||
100 to 105 | 102.5 | 0.0 | 1.0 | 77.4 | 0.8 | 1.6 | 0.15 | 0.03 | 2.2 | 3.1 | 0.39 | 7.8 | |||||
105 to 110 | 107.5 | 0.0 | 0.8 | 78.5 | 0.8 | 1.6 | 0.14 | 0.03 | 2.0 | 2.8 | 0.35 | 0.8 | 7.9 | 5,400 | 30 | −20.9 | |
110 to 115 | 112.5 | 0.0 | 0.3 | 79.4 | 0.7 | 1.6 | 0.12 | 0.03 | 2.0 | 3.2 | 0.40 | 8.0 | |||||
115 to 120 | 117.5 | 0.0 | 0.4 | 80.6 | 0.6 | 1.5 | 0.11 | 0.03 | 1.7 | 3.0 | 0.40 | 0.8 | 7.6 | −20.9 | +4.2 | ||
120 to 125 | 122.5 | 0.0 | 0.6 | 80.7 | 0.6 | 1.4 | 0.11 | 0.02 | 1.6 | 3.3 | 0.44 | 7.5 | |||||
125 to 130 | 127.5 | 0.0 | 0.3 | 81.7 | 0.5 | 1.4 | 0.10 | 0.02 | 1.4 | 3.1 | 0.42 | 0.7 | 7.4 | 5,350 | 40 | −17.0 | +2.4 |
130 to 135 | 132.5 | 0.0 | 1.7 | 75.3 | 0.9 | 1.7 | 0.18 | 0.04 | 2.3 | 2.6 | 0.32 | 8.2 | |||||
135 to 140 | 137.5 | 0.0 | 1.7 | 76.0 | 0.9 | 1.7 | 0.18 | 0.03 | 2.3 | 2.7 | 0.34 | 0.9 | 7.9 | ||||
140 to 145 | 142.5 | 0.0 | 1.0 | 79.1 | 0.7 | 1.6 | 0.13 | 0.03 | 1.9 | 2.8 | 0.38 | 7.3 | |||||
145 to 150 | 147.5 | 0.0 | 1.2 | 77.7 | 0.9 | 1.8 | 0.17 | 0.04 | 2.4 | 2.4 | 0.31 | 0.8 | 7.8 | ||||
150 to 156 | 153.0 | 0.0 | 0.6 | 79.8 | 0.7 | 1.6 | 0.12 | 0.03 | 1.8 | 2.7 | 0.33 | 8.3 | 6,010 | 70 | −21.4 (n = 2) | +4.5 |