Bauer Basin, metalliferous sediments (cores CN100/137, FCC 114 to 116 and PC8)
Eastern equatorial Pacific, Bauer Basin, Océan Pacifique (eaux internationales)
Sediments
- Type
- Sediment
Carbonate-poor metalliferous clays deposited below the carbonate compensation depth, five times more slowly than on the ridge; hydrothermal material advected from the ridge (Heath and Dymond, 1977). Coordinates not published.
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 |
|---|---|---|---|---|
| 0.971 ± 0.0119 | 0.9539 / 0.9828 | 6 | metalliferous sediment (bulk) Mean and standard deviation recalculated from 6 analyses, 0.9539 to 0.9828 (CN100/137 0.9539; CN100/137 (2) 0.9828; FCC 114 0.9740; FCC 115 0.9816; FCC 116 0.9589; PC8 0.9748). Published 187Os/186Os: CN100/137 7.926 ± 0.022, Os 350 ppt, 9-15 cm, 30-50 ka; CN100/137 (2) 8.166 ± 0.019, Os 366 ppt, 9-15 cm, 30-50 ka; FCC 114 8.093 ± 0.030, Os 581 ppt, 0-90 cm, 0-500 ka; FCC 115 8.156 ± 0.014, Os 481 ppt, 30-90 cm, 125-375 ka; FCC 116 7.968 ± 0.018, Os 553 ppt, core top; PC8 8.100 ± 0.025, Os 199 ppt, 0-20 cm, 0-50 ka. 187Os/186Os 7.9 to 8.2, slightly lower than on the ridge: small share of unradiogenic hydrothermal Os according to the authors. The two CN100/137 analyses differ clearly (7.926 and 8.166), a possible sign of sample heterogeneity. | Ravizza & McMurtry (1993), Osmium isotopic variations in metalliferous sediments from the… |
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Cite this page
IsoFind Atlas (2026). Bauer Basin, metalliferous sediments (cores CN100/137, FCC 114 to 116 and PC8), isotope signatures. https://www.isofind.tech/isotopes/en/sites/bassin-de-bauer-sediments-metalliferes-carottes-cn100-137-fcc-114-a-116-et-pc8/ (accessed 2026-10-21).
@misc{isofind2026bauerbasinmetalliferoussedime,
title = {Bauer Basin, metalliferous sediments (cores CN100/137, FCC 114 to 116 and PC8), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/bassin-de-bauer-sediments-metalliferes-carottes-cn100-137-fcc-114-a-116-et-pc8/},
note = {Accessed 2026-10-21}
}Updated : 2026-10-21