Black Sea, deep euxinic basin (station 9)
Black Sea, deep western basin
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 ‰). Deep basin (over 2000 m) under sulphidic waters, 5.3 % organic carbon and 52 % carbonate on average.
ε205Tl in ε units (parts per 10,000) Values of the same system
Standard : NIST SRM 997
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −2.39 ± 0.27 ε | −2.58 / −2.2 ε | 2 | basin sediment under euxinic water (16 to 26 cm), authigenic fraction (Tl) Mean and standard deviation recalculated from 2 analyses, -2.58 to -2.20 (9 16-18 -2.20; 9 24-26 -2.58). Published means for all euxinic sediments: ε205Tl -2.4 ± 0.3 (N = 8 for 9 values in the table), δ51V -0.57 ± 0.06 ‰ (N = 7), which leaves out BC21 49 cm (-0.27 ‰) without saying so. | 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 |
|---|---|---|---|---|
| −0.49 ± 0.01 ‰ | −0.5 / −0.48 ‰ | 2 | basin sediment under euxinic water (16 to 26 cm), authigenic fraction (V) Mean and standard deviation recalculated from 2 analyses, -0.50 to -0.48 (9 16-18 -0.50; 9 24-26 -0.48). Published means for all euxinic sediments: ε205Tl -2.4 ± 0.3 (N = 8 for 9 values in the table), δ51V -0.57 ± 0.06 ‰ (N = 7), which leaves out BC21 49 cm (-0.27 ‰) without saying so. | 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, deep euxinic basin (station 9), isotope signatures. https://www.isofind.tech/isotopes/en/sites/mer-noire-bassin-profond-euxinique-station-9/ (accessed 2026-10-20).
@misc{isofind2026blackseadeepeuxinicbasinstati,
title = {Black Sea, deep euxinic basin (station 9), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/mer-noire-bassin-profond-euxinique-station-9/},
note = {Accessed 2026-10-20}
}Updated : 2026-10-20