Peruvian margin, 11° S transect across the oxygen minimum zone
Southeast Pacific, Peruvian margin
Sediments
- Type
- Sediment
Transect from 85 to 2025 m at 11° S, from the core of the oxygen minimum zone (bottom-water O2 below 1.5 µM) to oxygenated waters (93 µM), with EPZT MC4 (12° S) and MW87/08 SC06 (15° S) (Wu et al., 2020). Coordinates: centre of the 11° S stations.
δ51V in ‰ (per mil) Values of the same system
Standard : AA (Alfa Aesar)
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −0.5 ± 0.14 ‰ | −0.67 / −0.13 ‰ | 17 | sediment under the oxygen minimum zone (bottom-water O2 below 10 µM), leached authigenic fraction (V) Mean and standard deviation recalculated from 17 analyses, -0.67 to -0.13 (BIGO-05 5 -0.55; BIGO-05 10 -0.56; MUC29 5-6 -0.56; MUC29 8-10 -0.54; MW87/08 SC02 0-1 -0.46; MW87/08 SC02 40-41 -0.46; MUC19 8-10 -0.55; MUC19 14-18 -0.52; MUC19 30-34 -0.63; MUC33 6-8 -0.57; MUC33 14-18 -0.57; MUC33 30-34 -0.52; MUC21 6-8 -0.28; MUC21 10-12 -0.26; MUC21 14-18 -0.13; MW87/08 SC06 0-1 -0.63; MW87/08 SC06 15-16 -0.67). Stations: BIGO-05 (-11.0003, -77.7953, 85 m, bottom-water O2 <1.5 µM); MUC29 (-11.0000, -77.9435, 145 m, bottom-water O2 <1.5 µM); MW87/08 SC02 (-11.0702, -78.0523, 255 m, bottom-water O2 <1.5 µM); MUC19 (-11.0002, -78.1662, 319 m, bottom-water O2 <1.5 µM); MUC33 (-11.0000, -78.2365, 376 m, bottom-water O2 <1.5 µM); MUC21 (-11.0002, -78.3207, 465 m, bottom-water O2 2.1 µM); MW87/08 SC06 (-15.1915, -75.5752, 535 m, bottom-water O2 9 µM). MUC21, near the base of the zone (2.1 µM), gives the heaviest leachates (-0.28 to -0.13 ‰). | Wu et al. (2020), Sedimentary vanadium isotope signatures in low oxygen marine conditions… |
| −0.55 ± 0.1 ‰ | −0.69 / −0.36 ‰ | 12 | sediment under the oxygen minimum zone (bottom-water O2 below 10 µM), bulk sediment (V) Mean and standard deviation recalculated from 12 analyses, -0.69 to -0.36 (BIGO-05 5 -0.69; BIGO-05 10 -0.66; MUC29 5-6 -0.52; MUC29 8-10 -0.57; MUC29 12-14 -0.58; MUC19 8-10 -0.53; MUC19 12-14 -0.47; MUC33 6-8 -0.67; MUC33 10-14 -0.57; MUC21 6-8 -0.53; MUC21 10-12 -0.43; MUC21 14-18 -0.36). Stations: BIGO-05 (-11.0003, -77.7953, 85 m, bottom-water O2 <1.5 µM); MUC29 (-11.0000, -77.9435, 145 m, bottom-water O2 <1.5 µM); MW87/08 SC02 (-11.0702, -78.0523, 255 m, bottom-water O2 <1.5 µM); MUC19 (-11.0002, -78.1662, 319 m, bottom-water O2 <1.5 µM); MUC33 (-11.0000, -78.2365, 376 m, bottom-water O2 <1.5 µM); MUC21 (-11.0002, -78.3207, 465 m, bottom-water O2 2.1 µM); MW87/08 SC06 (-15.1915, -75.5752, 535 m, bottom-water O2 9 µM). MUC21, near the base of the zone (2.1 µM), gives the heaviest leachates (-0.28 to -0.13 ‰). | Wu et al. (2020), Sedimentary vanadium isotope signatures in low oxygen marine conditions… |
| −0.86 ± 0.11 ‰ | −1.05 / −0.69 ‰ | 17 | sediment below the oxygen minimum zone, bottom water above 10 µM O2, leached authigenic fraction (V) Mean and standard deviation recalculated from 17 analyses, -1.05 to -0.69 (MUC25 6-8 -0.78; MUC25 10-12 -0.82; MUC25 14-18 -0.78; MUC25 22-26 -0.69; EPZT MC4 0-1 -0.72; MUC15 1-2 -0.94; MUC15 4-5 -1.05; MUC15 6-8 -0.95; MUC15 10-12 -0.94; MUC53 1-2 -1.04; MUC53 6-8 -0.90; MUC26 1-2 -0.78; MUC26 5-6 -0.99; MUC26 14-15 -0.85; MUC27 2-3 -0.84; MUC27 6-7 -0.82; MUC27 13-14 -0.72). Stations: MUC25 (-11.0005, -78.4267, 697 m, bottom-water O2 12.1 µM); EPZT MC4 (-12.0448, -77.8182, 770 m, bottom-water O2 13 µM); MUC15 (-10.9997, -78.5003, 930 m, bottom-water O2 39.9 µM); MUC53 (-10.9998, -78.5212, 1005 m, bottom-water O2 41.6 µM); MUC26 (-11.0002, -78.5852, 1242 m, bottom-water O2 63.8 µM); MUC27 (-11.0002, -78.7460, 2025 m, bottom-water O2 93.4 µM). | Wu et al. (2020), Sedimentary vanadium isotope signatures in low oxygen marine conditions… |
| −0.81 ± 0.07 ‰ | −0.91 / −0.71 ‰ | 8 | sediment below the oxygen minimum zone, bottom water above 10 µM O2, bulk sediment (V) Mean and standard deviation recalculated from 8 analyses, -0.91 to -0.71 (MUC25 6-8 -0.71; MUC25 10-12 -0.78; EPZT MC4 0-1 -0.81; MUC15 1-2 -0.91; MUC15 4-5 -0.90; MUC53 1-2 -0.82; MUC26 1-2 -0.82; MUC27 2-3 -0.71). Stations: MUC25 (-11.0005, -78.4267, 697 m, bottom-water O2 12.1 µM); EPZT MC4 (-12.0448, -77.8182, 770 m, bottom-water O2 13 µM); MUC15 (-10.9997, -78.5003, 930 m, bottom-water O2 39.9 µM); MUC53 (-10.9998, -78.5212, 1005 m, bottom-water O2 41.6 µM); MUC26 (-11.0002, -78.5852, 1242 m, bottom-water O2 63.8 µM); MUC27 (-11.0002, -78.7460, 2025 m, bottom-water O2 93.4 µM). | Wu et al. (2020), Sedimentary vanadium isotope signatures in low oxygen marine conditions… |
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Cite this page
IsoFind Atlas (2026). Peruvian margin, 11° S transect across the oxygen minimum zone, isotope signatures. https://www.isofind.tech/isotopes/en/sites/marge-peruvienne-transect-a-11-s-a-travers-la-zone-de-minimum-d-oxygene/ (accessed 2026-10-21).
@misc{isofind2026peruvianmargin11stransectacro,
title = {Peruvian margin, 11° S transect across the oxygen minimum zone, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/marge-peruvienne-transect-a-11-s-a-travers-la-zone-de-minimum-d-oxygene/},
note = {Accessed 2026-10-21}
}Updated : 2026-10-21