Chromite deposits in the ophiolite complex of Northern Oman

Tj Peters, J. D. Kramers

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17 Citations (Scopus)


In the ophiolite series of N. Oman numerous small and large elongated podiform chromite deposits occur within the peridotite complex at a certain level of 100-200 meters below the layered zone, which grades into the overlying gabbro complex. The chromite grains were corroded after their deposition; their composition shows a large variation in Cr/Al ratio and a small variation in Cr/Fe ratio. The chromium is thought to have been liberated from clino-pyroxenes during partial melting of lherzolitic upper mantle material. Precipitation of large quantities of chromite at the specific level below the gabbro complex is related to the plagioclase- /spinel-lherzolite transition, but the influence of a change in oxygen fugacity is also considered.

Original languageEnglish
Pages (from-to)253-259
Number of pages7
JournalMineralium Deposita
Issue number3
Publication statusPublished - Sept 1974
Externally publishedYes

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology
  • Economic Geology


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