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Black Sea, oxic shelf of Sinop Bay (stations 16 and 17)

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 ‰). Shelf under oxygenated waters, 1.2 % organic carbon and 20 % carbonate on average.

ε205Tl in ε units (parts per 10,000) Values of the same system

Standard : NIST SRM 997

ValueRangenMineral or matrixSource
−2.74 ± 0.22 ε−3.03 / −2.39 ε7shelf sediment under oxic water, authigenic fraction (Tl)
Mean and standard deviation recalculated from 7 analyses, -3.03 to -2.39 (16 0-2 -2.65; 16 2-4 -2.39; 16 10-12 -2.67; 17 2-4 -2.67; 17 4-6 -2.98; 17 8-10 -2.78; 17 12-14 -3.03). Published means for all oxic sediments: ε205Tl -2.7 ± 0.3 (1 SD, N = 10), δ51V -1.06 ± 0.33 ‰ (N = 9).
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)

ValueRangenMineral or matrixSource
−0.98 ± 0.32 ‰−1.6 / −0.74 ‰6shelf sediment under oxic water, authigenic fraction (V)
Mean and standard deviation recalculated from 6 analyses, -1.60 to -0.74 (16 0-2 -0.79; 16 2-4 -0.99; 16 10-12 -0.88; 17 2-4 -0.87; 17 4-6 -0.74; 17 8-10 -1.60). Published means for all oxic sediments: ε205Tl -2.7 ± 0.3 (1 SD, N = 10), δ51V -1.06 ± 0.33 ‰ (N = 9).
Chen et al. (2022), Iron and manganese shuttle has no effect on sedimentary thallium and …

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Black Sea, oxic shelf of Sinop Bay (stations 16 and 17), isotope signatures. https://www.isofind.tech/isotopes/en/sites/mer-noire-plateau-oxique-de-la-baie-de-sinop-stations-16-et-17/ (accessed 2026-10-20).

@misc{isofind2026blackseaoxicshelfofsinopbayst,
  title = {Black Sea, oxic shelf of Sinop Bay (stations 16 and 17), isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/sites/mer-noire-plateau-oxique-de-la-baie-de-sinop-stations-16-et-17/},
  note = {Accessed 2026-10-20}
}

Updated : 2026-10-20