Table 2 Carbon and nitrogen data
Site | Sample ID | Year | Dive | Depth (mbsl) | δ13Ccarb (‰, VPDB) | δ13Corg (‰, VPDB) | δ15N (‰, air) | TOC (wt.%) | TN (wt.%) | Siderite§ |
|---|---|---|---|---|---|---|---|---|---|---|
South Isabel | M21-SI bulk | 2021 | 1998-10 | 1699 | -5.0 | -21.8 | 3.1 | 0.32 | 0.03 | No |
N37° 17.336 W32° 16.628 | ||||||||||
Lava Lake | M23-LL bulk | 2023 | 844-6 | 1738 | -1.2 | -25.2 | n.d. | 0.43 | 0.02 | No |
N37° 17.543 W32° 16.796 | ||||||||||
Capelinhos | M22-CAP_C bulk | 2022 | 2035-8 | 1669 | -0.3 | -24.6 | n.d. | 0.56 | 0.04 | No |
N37° 17.368 W32° 15.834 | M23-CAP-sample 1 (upper or bottom part)# | 2023 | 844-6 | 1669 | 1.7 | -26.7 | n.d. | 0.83 | 0.07 | n.d. |
M23-CAP-sample 1 (bottom or upper part)# | 2023 | 844-6 | 1669 | 1.2 | -22.0 | n.d. | 0.76 | 0.06 | n.d. | |
Y3 | M22-Y3_A bulk | 2022 | 2034-7 | 1727 | -6.0 | -35.1 | -1.4 | 0.22 | 0.03 | Yes |
N37° 17.518 W32° 16.663 | M22-Y3_B (upper part) | 2022 | 2034-7 | 1727 | 11.5 | -18.9 | 2.1 | 0.38 | 0.03 | Limited |
M22-Y3_B (middle part) | 2022 | 2034-7 | 1727 | 5.5 | -20.9 | n.d. | 0.26 | 0.02 | Yes | |
M22-Y3_B (bottom part) | 2022 | 2034-7 | 1727 | 2.0 | -21.4 | 0.9 | 0.29 | 0.02 | Yes | |
N37° 17.509 W32° 16.670 | M23-Y3 sample 1 | 2023 | 846-8 | 1727 | 2.0 | -33.8 | n.d. | 0.18 | 0.02 | n.d |
M23-Y3 sample 2 | 2023 | 846-8 | 1727 | 10.2 | −22.8 | 1.7 | 0.44 | 0.03 | n.d |
