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Stillwater Complex (gabbro magnetite)

Montana, United States

Magmatic (Ni-Cu-PGE, carbonatites)EGP-Cr (Fe-Ti)

Type
Layered mafic-ultramafic intrusion

Layered mafic intrusion (LMI) magnetite analysed by Emproto et al. (2026). Eight magnetites, three of them from gabbro, -1.0 to +0.5 ‰ (locality reference: McCallum, 1996); distinct from the J-M Reef.

δ49Ti in ‰ (per mil) Values of the same system

Standard : OL-Ti

ValueRangenMineral or matrixSource
−0.2 ± 0.5 ‰−1 / 0.5 ‰8magnetite (gabbros and unspecified levels)
Mean and standard deviation recalculated from 8 analyses, -1.0 to +0.5 (sc 1 +0.5; sc 2 -0.1; sc 3 -0.3; sc 4 +0.2; sc 5 -1.0; sc 6 -0.9; sc 7 -0.5; sc 13 +0.2). sc 2, 4 and 13: gabbro; lithology not given for the others.
Emproto et al. (2026), Extensive titanium isotope fractionation in magmatic and hydrother…

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Stillwater Complex (gabbro magnetite), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/complexe-de-stillwater-magnetite-des-gabbros/ (accessed 2026-10-20).

@misc{isofind2026stillwatercomplexgabbromagnet,
  title = {Stillwater Complex (gabbro magnetite), isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/deposits/complexe-de-stillwater-magnetite-des-gabbros/},
  note = {Accessed 2026-10-20}
}

Updated : 2026-10-20