Aaiún-Tarfaya Basin
Aaiún-Tarfaya Basin, Sahara occidental
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. Late Cretaceous to Palaeocene (about 66 Ma); bulk-rock 87Sr/86Sr well above that of its fluorapatite (0.708312). 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 |
|---|---|---|---|---|
| 0.708913 | 1 | phosphate rock (bulk) Single analysis; sample EH-1. | Hill et al. (2024), Reconstructing the depositional environment and diagenetic modificati… | |
| 0.708312 | 1 | extracted carbonate fluorapatite (CFA) Single analysis; sample EH-1. | Hill et al. (2024), Reconstructing the depositional environment and diagenetic modificati… |
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.92 ‰ | 1 | rock phosphate (PO4 oxygen) Single analysis; sample EH-1. | Hill et al. (2024), Reconstructing the depositional environment and diagenetic modificati… |
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- Kupferschiefer, Lubin-Sieroszowice district Poland
- Timna Israël
- Datangpo-type manganese (Gaolou, Minle, Zhenxing) China
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Cite this page
IsoFind Atlas (2026). Aaiún-Tarfaya Basin, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/bassin-d-aaiun-tarfaya/ (accessed 2026-10-15).
@misc{isofind2026aaiuntarfayabasinisotopesigna,
title = {Aaiún-Tarfaya Basin, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/bassin-d-aaiun-tarfaya/},
note = {Accessed 2026-10-15}
}Updated : 2026-10-15