Table 1 Environmental parameters of each sample (S = sand, St = silt, C = clay)
Layer (cm) | Depth (m) | Longitude | Latitude | Total organic Carbon (%) | Median grain Size (μm) | Sand (%) | Silt (%) | Clay (%) | Type of sediments | |
|---|---|---|---|---|---|---|---|---|---|---|
S-M.1 | 0-1 cm | 813 | 137°45.3′E | 8°52.2′N | 0.10 | 236.2 | 88.7 | 9.0 | 2.3 | S |
S-M.2 | 9-10 cm | 0.14 | 73.8 | 53.8 | 30.8 | 15.4 | S-St | |||
S-M.3 | 19-20 cm | 0.53 | 45.2 | 39.2 | 42.9 | 17.9 | St-S | |||
S-M.4 | 29-30 cm | 0.06 | 42.4 | 39.4 | 44.8 | 15.8 | St-S | |||
S-B.1 | 0-1 cm | 3812 | 137°54.4′E | 8°47.0′N | 0.63 | 799.4 | 62.7 | 23.3 | 9.1 | S |
S-B.2 | 9-10 cm | 0.26 | 8.4 | 5.7 | 62.5 | 31.8 | C-St | |||
S-B.3 | 19-20 cm | 0.41 | 25.3 | 26.1 | 53.8 | 20.2 | S-C-St | |||
DS1.1 | 0-1 cm | 4042 | 134°50.1′E | 10°0.3 ‘N | 0.52 | 21.6 | 15.4 | 67.9 | 16.7 | C-St |
DS1.2 | 9-10 cm | 0.42 | 33.7 | 39.7 | 55.3 | 5.1 | S-St | |||
DS1.3 | 19-20 cm | 0.82 | 85.2 | 63.6 | 33.3 | 3.1 | St-S | |||
DS2.1 | 0-1 cm | 4566 | 136 °0.2′E | 9 °0.3′N | 7.14 | 18.1 | 3.3 | 78.3 | 18.5 | C-St |
DS2.2 | 9-10 cm | 7.95 | 4.5 * 10−13 | 0.0 | 75.3 | 24.7 | C-St |