Magmatic platinum-group element concentrations and hydrothermal upgrading in shetland ophiolite complex

R. A. Lord, H. M. Prichard, C. R. Neary

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The Balta Sound area contains a representative and only partially serpentinized vertical section through the sequence of primary rock types that is characteristic of the Shetland ophiolite complex. Here the crustal ultramafic cumulates that overlie mantle tectonites typically contain acessory sulphide. Two stratigraphic zones of chromite enrichment are defined in the basal dunite cumulates by arrays of extracted chromitite pods and discontinuous chromite-rich layers. The distribution of platinum-group element (PGE) concentrations in the igneous rock sequence is described and its bearing on the genesis of precious metal mineralization elsewhere in Shetland and in other ophiolite complexes is discussed.

LanguageEnglish
Pages87-106
Number of pages20
JournalTransactions of the Institutions of Mining and Metallurgy, Section B: Applied Earth Science
Volume103
Publication statusPublished - 1 May 1994
Externally publishedYes

Fingerprint

Chromite
platinum group element
chromite
cumulate
Platinum
ophiolite
Bearings (structural)
Igneous rocks
chromitite
dunite
precious metal
Sulfides
Precious metals
igneous rock
Rocks
sulfide
Acoustic waves
mineralization
mantle
rock

Keywords

  • arsenic
  • assays
  • gold
  • igneous rocks
  • lithology
  • sedimentary rocks

Cite this

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AU - Prichard, H. M.

AU - Neary, C. R.

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KW - gold

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KW - sedimentary rocks

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