Black Sea, Sinop Bay chemocline (station 16B)
Black Sea, Sinop Bay (Turkish coast)
Sediments
- Type
- Sediment
Sediments from the 1988 R/V Knorr cruise; depositional setting defined by iron speciation (Lyons and Severmann, 2006). Chen et al. (2022) find no Fe-Mn shuttle effect: authigenic ε205Tl does not vary with setting and stays close to Black Sea surface water (-2.2), authigenic δ51V is heavier under euxinic waters (-0.57 ‰) than under oxic or suboxic waters (-1.06 and -1.04 ‰). Sediments deposited at the chemocline, under suboxic waters.
ε205Tl in ε units (parts per 10,000) Values of the same system
Standard : NIST SRM 997
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −2.82 ± 0.44 ε | −3.33 / −2.5 ε | 3 | chemocline sediment under suboxic water, authigenic fraction (Tl) Mean and standard deviation recalculated from 3 analyses, -3.33 to -2.50 (16B 2-4 -2.50; 16B 4-6 -3.33; 16B 8-10 -2.64). Published means for all suboxic sediments: ε205Tl -2.4 ± 0.5 (N = 10, while the table gives only 9 values, mean -2.47), δ51V -1.04 ± 0.30 ‰. | Chen et al. (2022), Iron and manganese shuttle has no effect on sedimentary thallium and … |
δ51V in ‰ (per mil) Values of the same system
Standard : AA (Alfa Aesar)
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −1.27 ± 0.17 ‰ | −1.39 / −1.15 ‰ | 2 | chemocline sediment under suboxic water, authigenic fraction (V) Mean and standard deviation recalculated from 2 analyses, -1.39 to -1.15 (16B 2-4 -1.15; 16B 8-10 -1.39). Published means for all suboxic sediments: ε205Tl -2.4 ± 0.5 (N = 10, while the table gives only 9 values, mean -2.47), δ51V -1.04 ± 0.30 ‰. | Chen et al. (2022), Iron and manganese shuttle has no effect on sedimentary thallium and … |
Deposits of the same type
- Pebble iron oxide precipitates United States
- Laohugou No. 12 Glacier cryoconite China
- Yuzhufeng Glacier cryoconite China
- Bayi Glacier cryoconite China
- Qiyi Glacier cryoconite China
- Yulong Snow Mountains glacier cryoconite China
- Hailuogou Glacier (Mount Gongga) cryoconite China
- Dangxiong Glacier cryoconite China
Cite this page
IsoFind Atlas (2026). Black Sea, Sinop Bay chemocline (station 16B), isotope signatures. https://www.isofind.tech/isotopes/en/sites/mer-noire-chimiocline-de-la-baie-de-sinop-station-16b/ (accessed 2026-10-20).
@misc{isofind2026blackseasinopbaychemoclinesta,
title = {Black Sea, Sinop Bay chemocline (station 16B), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/mer-noire-chimiocline-de-la-baie-de-sinop-station-16b/},
note = {Accessed 2026-10-20}
}Updated : 2026-10-20