North Atlantic near Bermuda, seawater profile (31°50′ N, 64°10′ W)
North Atlantic Ocean
Other media
- Type
- Other medium
Three-depth profile (25, 500 and 3000 m) near Bermuda; the 3000 m water served for reproducibility tests (five aliquots of 3.3 to 10.8 kg). Sharma et al. (1997) derive 8.7 ± 0.2 (2σ) in 187Os/186Os for the deep Atlantic, after yield correction. Sample 1 (25 m): Os only, 15 ± 2 fM/kg, no isotope ratio.
187Os/188Os isotope ratio, no unit Values of the same system
Standard : Rapport absolu, sans standard de référence
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.9744 | 1 | seawater at 500 m, unfiltered (osmium) Single analysis (#2). Published: #2: 187Os/192Os 0.31610, 187Os/186Os 8.1 ± 0.4, Os 18.9 ± 1.0 fM/kg. | Sharma et al. (1997), The concentration and isotopic composition of osmium in the oceans,… | |
| 0.9695 ± 0.0623 | 0.8818 / 1.0284 | 5 | seawater at 3000 m, unfiltered (osmium) Mean and standard deviation recalculated from 5 analyses, 0.8818 to 1.0284 (#3 0.8818; #4 0.9292; #5 1.0284; #6 1.0170; #7 0.9912). Published: #3: 187Os/192Os 0.28606, 187Os/186Os 7.4 ± 0.5, Os 19.5 ± 1.1 fM/kg; #4: 187Os/192Os 0.30141, 187Os/186Os 7.7 ± 0.5, Os 15.3 ± 1.1 fM/kg; #5: 187Os/192Os 0.33361, 187Os/186Os 8.6 ± 0.2, Os 16.0 ± 0.4 fM/kg; #6: 187Os/192Os 0.32992, 187Os/186Os 8.5 ± 0.4, Os 18.8 ± 0.9 fM/kg; #7: 187Os/192Os 0.32155, 187Os/186Os 8.3 ± 0.6, Os 16.6 ± 1.3 fM/kg. Aliquot 3 is an initial low-precision measurement. Authors' preferred, yield-corrected value: 187Os/186Os 8.7 ± 0.2, about 1.047 in 187Os/188Os. | Sharma et al. (1997), The concentration and isotopic composition of osmium in the oceans,… |
Deposits of the same type
- Sargasso Sea, BATS station
- Subtropical North Atlantic, station GPrI 20 (31.67° N 64.17° W)
- Hydrogenetic Fe-Mn deposit (crust), North Atlantic (Alv 539, 2-1A)
- Hydrogenetic Fe-Mn deposit (crust), North Atlantic (Hudson St. 54, BM1969.05)
- Siders Pond (Falmouth) United States
- Deep-water diagenetic Fe-Mn deposit (nodule), Northwest Atlantic (USGS, Nod-A-1), USGS reference material
- Hydrogenetic Fe-Mn deposit (crust), North Atlantic (BM1963.897)
- Hydrogenetic Fe-Mn deposit (crust), North Atlantic (ArcI TR079, D-14)
Cite this page
IsoFind Atlas (2026). North Atlantic near Bermuda, seawater profile (31°50′ N, 64°10′ W), isotope signatures. https://www.isofind.tech/isotopes/en/sites/atlantique-nord-pres-des-bermudes-profil-d-eau-de-mer-31-50-n-64-10-o/ (accessed 2026-10-21).
@misc{isofind2026northatlanticnearbermudaseawa,
title = {North Atlantic near Bermuda, seawater profile (31°50′ N, 64°10′ W), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/atlantique-nord-pres-des-bermudes-profil-d-eau-de-mer-31-50-n-64-10-o/},
note = {Accessed 2026-10-21}
}Updated : 2026-10-21