Weiyuan Seamount (Clarion-Clipperton Zone), Jiaolong dives 64 and 68
Pacific Ocean
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Crust and nodules sampled at the seafloor surface in 2013 (cruise DY125-31). Dive 64 at 5200 m (9°59.8′ N, 154°17.8′ W, site coordinates); dive 68 at 5100 m (6°44.6′ N, 153°3.7′ W), about 360 km further south. Nodules with high Mn/Fe (2.2 to 6.0): increasing diagenetic input, lighter δ51V (Wu et al., 2019).
δ51V in ‰ (per mil) Values of the same system
Standard : AA (Alfa Aesar)
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −1.04 ‰ | 1 | hydrogenetic Fe-Mn crust, whole rock (vanadium) Single analysis (Dive64A OR512-121T). ± 0.08 ‰ (2SD, n = 7), Mn/Fe 0.96. Published mean of hydrogenetic crusts and nodules: -1.05 ± 0.16 ‰ (2SD, n = 22), i.e. 1.2 ± 0.2 ‰ below seawater (+0.20 ‰). | Wu et al. (2019), Vanadium isotopic fractionation during the formation of marine ferroman… | |
| −1.45 ± 0.15 ‰ | −1.63 / −1.31 ‰ | 5 | Fe-Mn nodules, whole rock (vanadium) Mean and standard deviation recalculated from 5 analyses, -1.63 to -1.31 (Dive64A OR512-141T -1.40; Dive64A OH200-111T(2) -1.31; Dive64A OH200-111T(3) -1.33; Dive68 OH200-011T(1) -1.59; Dive68 OH200-011T(2) -1.63). Replicate of Dive68 OH200-011T(2): -1.64 ± 0.04 ‰ (n = 3), not counted. Nodules from dive 68 (Mn/Fe 4.9 and 6.0) are the lightest: mixing between a hydrogenetic end-member (-1.04 ‰) and a diagenetic end-member (-1.63 ‰), V precipitated from pore water already depleted in 51V (Rayleigh model with alpha = 0.9988). | Wu et al. (2019), Vanadium isotopic fractionation during the formation of marine ferroman… |
Deposits of the same type
- Deep-water diagenetic Fe-Mn deposit (nodule), Pacific (DOMES A, Mn164: DJ18)
- Deep-water diagenetic Fe-Mn deposit (nodule), Pacific (DOMES A, Mn192: DJ48)
- Hydrogenetic Fe-Mn deposit (crust), Pacific (VA13/2, 237KD)
- Hydrothermal manganese deposit, Hawaii (F11-91-HW, 1-D1-1B)
- North Pacific, Station ALOHA (22°45′ N, 158° W)
- Central North Pacific, 23° N 158° W
- Hydrogenetic Fe-Mn deposit (crust), Pacific (F7-86-HW, CD29-2)
- Deep-water diagenetic Fe-Mn deposit (nodule), Pacific (GSJ, JMn-1), GSJ reference material
Cite this page
IsoFind Atlas (2026). Weiyuan Seamount (Clarion-Clipperton Zone), Jiaolong dives 64 and 68, isotope signatures. https://www.isofind.tech/isotopes/en/sites/mont-sous-marin-de-weiyuan-zone-de-clarion-clipperton-plongees-64-et-68-du-jiaolong/ (accessed 2026-10-21).
@misc{isofind2026weiyuanseamountclarionclipper,
title = {Weiyuan Seamount (Clarion-Clipperton Zone), Jiaolong dives 64 and 68, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/mont-sous-marin-de-weiyuan-zone-de-clarion-clipperton-plongees-64-et-68-du-jiaolong/},
note = {Accessed 2026-10-21}
}Updated : 2026-10-21