Bayóvar-Sechura
Piura, Sechura Basin, Peru
OtherP
- Type
- Marine sedimentary phosphorite (carbonate fluorapatite)
Phosphate rocks studied by Hill et al. (2024) to reconstruct redox conditions and diagenesis: U, Sr and rare earths carried by carbonate fluorapatite; samples taken at mines or from the Julius Kühn Institute archives. Middle Miocene marine phosphate ore; Table S2 gives Maine as the region, Table S1 Bayóvar-Sechura, kept here. Coordinates not given.
87Sr/86Sr isotope ratio, no unit Values of the same system
Standard : NIST SRM 987
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.70886 | 1 | phosphate rock (bulk) Single analysis; sample PE-1. | Hill et al. (2024), Reconstructing the depositional environment and diagenetic modificati… |
δ238U in ‰ (per mil) Values of the same system
Standard : NBL CRM 112-A
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −0.188 ± 0.029 ‰ | 1 | extracted carbonate fluorapatite (CFA) Single analysis; sample PE-1; modern seawater at -0.38 ‰ for comparison. | Hill et al. (2024), Reconstructing the depositional environment and diagenetic modificati… |
δ234U in ‰ (per mil) Values of the same system
Standard : équilibre séculaire
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 17.05 ± 6.6 ‰ | 1 | extracted carbonate fluorapatite (CFA) Single analysis; sample PE-1; a departure from 0 signals uranium mobility within the last two million years. | Hill et al. (2024), Reconstructing the depositional environment and diagenetic modificati… |
Deposits of the same type
- Central African Copperbelt (whole province) DR Congo and Zambia
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- Stelvio Italy
- Oris Italy
- Kupferschiefer, Lubin-Sieroszowice district Poland
- Timna Israël
- Datangpo-type manganese (Gaolou, Minle, Zhenxing) China
- Eyller Bruch bog iron ore Germany
Cite this page
IsoFind Atlas (2026). Bayóvar-Sechura, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/bayovar-sechura/ (accessed 2026-10-15).
@misc{isofind2026bayovarsechuraisotopesignatur,
title = {Bayóvar-Sechura, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/bayovar-sechura/},
note = {Accessed 2026-10-15}
}Updated : 2026-10-15