Table A3.
Sonication extraction-derived bGDGTs and proxies for soil samples.
| Samples§ | bGDGTs (%) |
bGDGT proxies‡ |
BIT | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GDGT-iii | GDGT-IIIb | GDGT-IIIc | GDGT-ii | GDGT-iib | GDGT-iic | GDGT-i | GDGT-ib | GDGT-ic | mbt | cbt | TMBT–CBT (°C) | pHCBT | ||
| m/z 1050 | m/z 1048 | m/z 1046 | m/z 1036 | m/z 1034 | m/z 1032 | m/z 1022 | m/z 1020 | m/z 1018 | ||||||
| PR-Soil-19-CL | 2.39 | n.d.† | n.d. | 14.68 | 2.34 | 0.75 | 70.20 | 7.57 | 2.09 | 0.80 | 0.93 | 25.1 | 6.3 | 0.92 |
| PR-Soil-16-CL | 4.15 | 0.56 | 0.35 | 26.81 | 9.27 | 0.55 | 42.29 | 14.04 | 1.98 | 0.58 | 0.47 | 18.6 | 7.5 | 0.69 |
| PR-Soil-15-CL | 3.65 | 0.51 | 0.15 | 22.17 | 10.40 | 0.94 | 33.82 | 24.89 | 3.47 | 0.62 | 0.20 | 23.1 | 8.2 | 0.81 |
| PR-Soil-14-CL | 1.62 | 0.26 | n.d. | 15.02 | 4.08 | 0.61 | 59.04 | 15.70 | 3.66 | 0.78 | 0.57 | 27.7 | 7.3 | 0.94 |
| PR-Soil-12-CL | 5.79 | 0.73 | n.d. | 21.63 | 7.24 | 1.04 | 43.53 | 16.15 | 3.89 | 0.64 | 0.44 | 21.5 | 7.6 | 0.81 |
| PR-Soil-11-CL | 3.68 | n.d. | n.d. | 15.58 | 9.89 | 1.57 | 40.38 | 23.13 | 5.78 | 0.69 | 0.23 | 26.4 | 8.2 | 0.58 |
| PR-Soil-7-CL | 3.57 | n.d. | n.d. | 19.51 | 8.49 | 1.52 | 42.83 | 18.60 | 5.49 | 0.67 | 0.36 | 24.0 | 7.8 | 0.86 |
| PR-Soil-8-CL | 2.07 | n.d. | n.d. | 14.38 | 2.65 | 0.65 | 65.98 | 11.39 | 2.88 | 0.80 | 0.76 | 26.9 | 6.8 | 0.92 |
| PR-Soil-9-CL | 0.98 | 0.12 | n.d. | 10.42 | 2.19 | 0.33 | 75.48 | 7.69 | 2.79 | 0.86 | 0.94 | 28.1 | 6.3 | 0.58 |
| PR-Soil-5-CL | 3.84 | 0.55 | n.d. | 17.77 | 5.01 | 0.73 | 54.30 | 14.11 | 3.68 | 0.72 | 0.58 | 24.6 | 7.2 | 0.87 |
| PR-Soil-4-CL | 0.82 | 0.19 | 0.07 | 8.68 | 1.69 | 0.22 | 82.28 | 4.96 | 1.09 | 0.88 | 1.14 | 27.4 | 5.8 | 0.91 |
| PR-Soil-3-CL | 0.99 | 0.18 | 0.13 | 11.53 | 3.15 | 0.33 | 69.55 | 12.00 | 2.14 | 0.84 | 0.73 | 28.9 | 6.8 | 0.73 |
| PR-Soil-1-CL | 0.45 | 0.26 | n.d. | 7.76 | 0.15 | 0.00 | 90.90 | 0.43 | 0.05 | 0.91 | 2.23 | 18.7 | 2.9 | 0.97 |
| PR-Soil-2-CL | 2.50 | 0.21 | n.d. | 19.37 | 3.50 | 0.41 | 59.85 | 12.11 | 2.04 | 0.74 | 0.71 | 24.3 | 6.9 | 0.84 |
| PR-Soil-6-CL | 1.81 | 0.29 | n.d. | 13.67 | 3.28 | 0.72 | 63.26 | 13.28 | 3.68 | 0.80 | 0.67 | 27.8 | 7.0 | 0.93 |
| PR-Soil-10-CL | 4.68 | 0.45 | n.d. | 20.08 | 5.21 | 0.97 | 51.58 | 13.92 | 3.12 | 0.69 | 0.57 | 22.8 | 7.3 | 0.88 |
| PR-Soil-13-CL | 3.13 | 0.54 | 0.13 | 22.45 | 4.96 | 0.56 | 57.53 | 9.24 | 1.47 | 0.68 | 0.75 | 21.0 | 6.8 | 0.96 |
| PR-Soil-17-CL | 5.46 | n.d. | n.d. | 19.31 | 9.90 | 2.14 | 37.74 | 19.59 | 5.87 | 0.63 | 0.29 | 22.8 | 8.0 | 0.80 |
| PR-Soil-18-CL | 0.28 | 0.05 | 0.16 | 5.89 | 0.51 | 0.60 | 89.94 | 1.47 | 1.08 | 0.92 | 1.68 | 24.4 | 4.3 | 0.93 |
| PR-Soil-20-CL | 0.23 | n.d. | n.d. | 3.67 | n.d. | n.d. | 95.28 | 0.62 | 0.21 | 0.96 | 2.21 | 21.3 | 3.0 | 0.97 |
| PR-Soil-19-PL | 2.88 | 1.53 | n.d. | 15.23 | 1.80 | 0.80 | 65.28 | 9.74 | 2.74 | 0.78 | 0.84 | 24.9 | 6.5 | 0.97 |
| PR-Soil-16-PL | 4.53 | 2.54 | 1.03 | 29.59 | 9.67 | 3.91 | 39.66 | 4.83 | 4.24 | 0.49 | 0.68 | 11.9 | 7.0 | 0.85 |
| PR-Soil-15-PL | 6.45 | 0.99 | n.d. | 21.06 | 13.18 | 0.71 | 35.55 | 18.98 | 3.09 | 0.58 | 0.25 | 20.4 | 8.1 | 0.76 |
| PR-Soil-14-PL | 27.05 | 2.45 | n.d. | 30.63 | 1.85 | 0.28 | 30.99 | 3.41 | 3.33 | 0.38 | 1.07 | 2.8 | 6.0 | 0.87 |
| PR-Soil-12-PL | 26.63 | 4.86 | n.d. | 38.18 | 11.27 | 0.26 | 16.12 | 2.15 | 0.54 | 0.19 | 0.61 | −2.4 | 7.2 | 0.70 |
| PR-Soil-11-PL | 29.58 | 0.00 | n.d. | 42.41 | 12.52 | 0.29 | 17.91 | 2.38 | 0.60 | 0.20 | 0.61 | −1.9 | 7.2 | 0.53 |
| PR-Soil-7-PL | 11.93 | 0.00 | n.d. | 22.52 | 12.81 | 1.53 | 49.18 | 1.98 | 0.06 | 0.51 | 0.69 | 13.1 | 7.0 | 0.93 |
| PR-Soil-8-PL | 2.30 | 0.00 | n.d. | 43.27 | 3.73 | 3.50 | 45.75 | 1.40 | 0.05 | 0.47 | 1.24 | 5.9 | 5.5 | 0.89 |
| PR-Soil-9-PL | 10.60 | 8.58 | n.d. | 19.15 | 0.50 | 0.07 | 59.33 | 1.68 | 0.10 | 0.61 | 1.56 | 9.9 | 4.7 | 0.72 |
| PR-Soil-5-PL | 5.61 | 0.72 | n.d. | 51.12 | 5.31 | 6.13 | 21.13 | 9.05 | 0.92 | 0.31 | 0.70 | 2.9 | 6.9 | 0.78 |
| PR-Soil-4-PL | 5.33 | 0.44 | 0.38 | 5.93 | 0.89 | 0.69 | 83.59 | 1.84 | 0.90 | 0.86 | 1.51 | 22.9 | 4.8 | 1.00 |
| PR-Soil-3-PL | 0.38 | 1.19 | 0.08 | 10.33 | 2.26 | 0.30 | 71.85 | 10.92 | 2.69 | 0.85 | 0.79 | 29.2 | 6.7 | 0.71 |
| PR-Soil-1-PL | 3.19 | 4.06 | n.d. | 11.37 | 1.12 | n.d. | 63.39 | 13.95 | 2.92 | 0.80 | 0.70 | 27.5 | 6.9 | 0.96 |
| PR-Soil-2-PL | 9.60 | 4.70 | n.d. | 16.70 | 3.86 | 1.47 | 58.09 | 4.32 | 1.25 | 0.64 | 0.96 | 16.7 | 6.2 | 0.99 |
| PR-Soil-6-PL | 12.66 | 3.04 | n.d. | 36.12 | 2.46 | 0.25 | 41.80 | 2.89 | 0.78 | 0.45 | 1.16 | 5.8 | 5.7 | 0.93 |
| PR-Soil-10-PL | 8.96 | 0.99 | n.d. | 45.31 | 6.59 | 0.21 | 26.91 | 10.77 | 0.26 | 0.38 | 0.62 | 7.1 | 7.1 | 0.84 |
| PR-Soil-13-PL | 3.50 | 0.34 | 0.05 | 19.28 | 3.38 | 0.35 | 60.33 | 10.67 | 2.08 | 0.73 | 0.75 | 23.4 | 6.8 | 1.00 |
| PR-Soil-17-PL | 5.60 | n.d. | n.d. | 25.47 | 12.11 | 4.47 | 36.38 | 9.14 | 6.84 | 0.52 | 0.46 | 15.7 | 7.5 | 0.62 |
| PR-Soil-18-PL | 0.93 | 2.37 | 1.85 | 9.51 | 1.10 | 0.42 | 80.13 | 2.99 | 0.69 | 0.84 | 1.34 | 23.3 | 5.2 | 0.81 |
| PR-Soil-20-PL | 15.85 | n.d. | n.d. | 10.54 | n.d. | n.d. | 70.38 | 2.33 | 0.91 | 0.74 | 1.54 | 16.3 | 4.7 | 0.92 |
CL, core lipids; PL, polar lipids.
§See Figure 1 for sample locations (solid white squares).
†Not detected.
‡CBT–pH and MBT–CBT temperature were calculated according to Weijers et al. (2007a). See text for formulas.