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Nekarot-Evus (Wadi Nekarot)

Central Negev, Ramon fault (incense route), Israël

OtherFe

Type
Fault-controlled hydrothermal iron lenses and stockworks

Ferruginous lenses and iron oxide vein stockworks along major faults, in the Late Cretaceous, in Judea Group carbonates; hematite, goethite, hematitic jasperoids, with calcite, dolomite, minor gypsum and barite. Ore averaging 88 % Fe2O3, hematite and goethite. Ore of smelting experiment EXP-5. Brauns et al. (2020): the three Negev ores share the same 187Os/188Os (1.03 to 1.07) but very different Os contents.

187Os/188Os isotope ratio, no unit Values of the same system

Standard : Rapport absolu, sans standard de référence

ValueRangenMineral or matrixSource
1.077 ± 0.05471.0383 / 1.11572iron ore (hematite and goethite)
Mean and standard deviation recalculated from 2 analyses, 1.0383 to 1.1157 (IP-43 1.1157; IP-43 (2) 1.0383). Os: IP-43 5123 ppt; IP-43 (2) 4429 ppt.
Brauns et al. (2020), Osmium isotope analysis as an innovative tool for provenancing anci…
1.0159 ± 0.0021.0145 / 1.01732ore roasted in a wood fire before smelting
Mean and standard deviation recalculated from 2 analyses, 1.0145 to 1.0173 (F.EXP-5-50 1.0173; F.EXP-5-50 réplique 1.0145). Os: F.EXP-5-50 6089 ppt; F.EXP-5-50 réplique 6667 ppt.
Brauns et al. (2020), Osmium isotope analysis as an innovative tool for provenancing anci…
1.0363 ± 0.00111.0347 / 1.03714bloomery iron (bloom and forged bar) from this ore, experimental smelt
Mean and standard deviation recalculated from 4 analyses, 1.0347 to 1.0371 (F.EXP-5-40 1.0347; F.EXP-5-40 réplique 1.0368; F.EXP-5-43 1.0371; F.EXP-5-43 réplique 1.0367). Os: F.EXP-5-40 69183 ppt; F.EXP-5-40 réplique 48147 ppt; F.EXP-5-43 133574 ppt; F.EXP-5-43 réplique 129438 ppt. Os enriched in the metal (4 to 28 times the ore) with no change in 187Os/188Os: the ratio carries over from ore to iron, which allows ancient iron to be tied to its ore.
Brauns et al. (2020), Osmium isotope analysis as an innovative tool for provenancing anci…
1.0364 ± 0.00781.0284 / 1.04535slags from the experimental smelt of this ore (tap, furnace and smithing)
Mean and standard deviation recalculated from 5 analyses, 1.0284 to 1.0453 (F.EXP-5-2 1.0337; F.EXP-5-13 1.0453; F.EXP-5-16 1.0284; F.EXP-5-16 réplique 1.0305; F.EXP-5-45 1.0440). Os: F.EXP-5-2 213 ppt; F.EXP-5-13 64826 ppt; F.EXP-5-16 27173 ppt; F.EXP-5-16 réplique 14452 ppt; F.EXP-5-45 1279 ppt. Slag Os contents highly variable: first-tap slag depleted, last-tap and furnace slags enriched.
Brauns et al. (2020), Osmium isotope analysis as an innovative tool for provenancing anci…

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Cite this page

IsoFind Atlas (2026). Nekarot-Evus (Wadi Nekarot), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/nekarot-evus-wadi-nekarot/ (accessed 2026-10-20).

@misc{isofind2026nekarotevuswadinekarotisotope,
  title = {Nekarot-Evus (Wadi Nekarot), isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/deposits/nekarot-evus-wadi-nekarot/},
  note = {Accessed 2026-10-20}
}

Updated : 2026-10-20