Peruvian margin at 11° S, core 470-MUC29 (145 m)
Peruvian shelf and slope, Peru
Sediments
- Type
- Sediment
Multicorer from cruise M77/1 on the 11° S transect, Peruvian oxygen minimum zone. Pore waters are as heavy as or heavier than biogenic opal: precipitation of authigenic alumino-silicates about 2 ‰ lighter. Station coordinates not given in the article. Abundant opal (10 to 27 wt%). Site not precisely located: the source gives no coordinates.
δ30Si in ‰ (per mil) Values of the same system
Standard : NBS 28
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 1.23 ± 0.12 ‰ | 1.09 / 1.41 ‰ | 6 | pore water (0.2 µm filtered), dissolved silicon Mean and standard deviation recalculated from 6 samples. Pore waters from 0 to 33 cm, Table 1. | Ehlert et al. (2016), Stable silicon isotope signatures of marine pore waters - Biogenic … |
| 0.93 ± 0.17 ‰ | 0.55 / 1.15 ‰ | 12 | extracted biogenic opal (diatoms) Mean and standard deviation recalculated from 12 samples. Biogenic opal from 0 to 48 cm, Table 1 (Modern Warm Period to Transition sediments). | Ehlert et al. (2016), Stable silicon isotope signatures of marine pore waters - Biogenic … |
Deposits of the same type
- Pebble iron oxide precipitates United States
- Laohugou No. 12 Glacier cryoconite China
- Yuzhufeng Glacier cryoconite China
- Bayi Glacier cryoconite China
- Qiyi Glacier cryoconite China
- Yulong Snow Mountains glacier cryoconite China
- Hailuogou Glacier (Mount Gongga) cryoconite China
- Dangxiong Glacier cryoconite China
Cite this page
IsoFind Atlas (2026). Peruvian margin at 11° S, core 470-MUC29 (145 m), isotope signatures. https://www.isofind.tech/isotopes/en/sites/marge-peruvienne-a-11-s-carotte-470-muc29-145-m/ (accessed 2026-10-13).
@misc{isofind2026peruvianmarginat11score470muc,
title = {Peruvian margin at 11° S, core 470-MUC29 (145 m), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/marge-peruvienne-a-11-s-carotte-470-muc29-145-m/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13