Bahariya Oasis iron ores (El Gedida mine)
Western Desert, Bahariya Oasis, Égypte
OtherFe
- Type
- Sedimentary and weathering iron ore (hematite, goethite) with barite
Middle Eocene iron ores at the top of the Bahariya Formation. Barite occurs as fragments at the base, as pockets within the ore and disseminated at the top. Its sulfur, lighter than Eocene seawater, and its more radiogenic strontium point to fluids that passed through the Bahariya sandstones and the basement.
δ34S in ‰ (per mil) Values of the same system
Standard : V-CDT
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.22 ± 0.5 ‰ | 14.39 / 15.62 ‰ | 5 | fragmented barite (base of the ore) Mean and standard deviation of 5 analyses. Table 4. Middle Eocene seawater was +20 to +22‰. | Baioumy (2015), Rare earth elements, S and Sr isotopes and origin of barite from Bahariya… |
| 16.51 ± 1.39 ‰ | 14.94 / 18.92 ‰ | 6 | interstitial barite (pockets within the ore) Mean and standard deviation of 6 analyses. Table 4. Middle Eocene seawater was +20 to +22‰. | Baioumy (2015), Rare earth elements, S and Sr isotopes and origin of barite from Bahariya… |
| 17.58 ± 0.7 ‰ | 16.69 / 18.19 ‰ | 4 | disseminated barite (top of the ore) Mean and standard deviation of 4 analyses. Table 4. Middle Eocene seawater was +20 to +22‰. | Baioumy (2015), Rare earth elements, S and Sr isotopes and origin of barite from Bahariya… |
87Sr/86Sr isotope ratio, no unit Values of the same system
Standard : NIST SRM 987
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.710208 ± 0.000673 | 0.709688 / 0.711067 | 5 | fragmented barite (base of the ore) Mean and standard deviation of 5 analyses. Table 3. All values exceed Middle Eocene seawater (0.70773 to 0.70778). | Baioumy (2015), Rare earth elements, S and Sr isotopes and origin of barite from Bahariya… |
| 0.709842 ± 0.001508 | 0.708696 / 0.712055 | 6 | interstitial barite (pockets within the ore) Mean and standard deviation of 6 analyses. Table 3. All values exceed Middle Eocene seawater (0.70773 to 0.70778). | Baioumy (2015), Rare earth elements, S and Sr isotopes and origin of barite from Bahariya… |
| 0.710135 ± 0.001627 | 0.707422 / 0.712237 | 6 | disseminated barite (top of the ore) Mean and standard deviation of 6 analyses. Table 3. All values exceed Middle Eocene seawater (0.70773 to 0.70778). | Baioumy (2015), Rare earth elements, S and Sr isotopes and origin of barite from Bahariya… |
Deposits of the same type
- Timna Israël
- Dereköy magnetite sands (Sagalassos territory) Turkey
- Sagalassos hematite Turkey
- Angouran Iran
- Oris Italy
- Stelvio Italy
- Kupferschiefer, Lubin-Sieroszowice district Poland
- Klingenthal-Kraslice Germany
Cite this page
IsoFind Atlas (2026). Bahariya Oasis iron ores (El Gedida mine), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/minerais-de-fer-de-l-oasis-de-bahariya-mine-d-el-gedida/ (accessed 2026-10-13).
@misc{isofind2026bahariyaoasisironoreselgedida,
title = {Bahariya Oasis iron ores (El Gedida mine), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/minerais-de-fer-de-l-oasis-de-bahariya-mine-d-el-gedida/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13