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Discriminant diagrams for iron oxide trace element fingerprinting of mineral deposit types

Mineralium deposita, 2011-04, Vol.46 (4), p.319-335 [Peer Reviewed Journal]

Springer-Verlag 2011 ;ISSN: 0026-4598 ;EISSN: 1432-1866 ;DOI: 10.1007/s00126-011-0334-y

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  • Title:
    Discriminant diagrams for iron oxide trace element fingerprinting of mineral deposit types
  • Author: Dupuis, Céline ; Beaudoin, Georges
  • Subjects: Earth and Environmental Science ; Earth Sciences ; Geochemistry ; Geology ; Mineral Resources ; Mineralogy ; Minerals ; Trace elements
  • Is Part Of: Mineralium deposita, 2011-04, Vol.46 (4), p.319-335
  • Description: Magnetite and hematite are common minerals in a range of mineral deposit types. These minerals form partial to complete solid solutions with magnetite, chromite, and spinel series, and ulvospinel as a result of divalent, trivalent, and tetravalent cation substitutions. Electron microprobe analyses of minor and trace elements in magnetite and hematite from a range of mineral deposit types (iron oxide-copper-gold (IOCG), Kiruna apatite–magnetite, banded iron formation (BIF), porphyry Cu, Fe-Cu skarn, Fe-Ti, V, Cr, Ni-Cu-PGE, Cu-Zn-Pb volcanogenic massive sulfide (VMS) and Archean Au-Cu porphyry and Opemiska Cu veins) show compositional differences that can be related to deposit types, and are used to construct discriminant diagrams that separate different styles of mineralization. The Ni + Cr vs. Si + Mg diagram can be used to isolate Ni-Cu-PGE, and Cr deposits from other deposit types. Similarly, the Al/(Zn + Ca) vs. Cu/(Si + Ca) diagram can be used to separate Cu-Zn-Pb VMS deposits from other deposit types. Samples plotting outside the Ni-Cu-PGE and Cu-Zn-Pb VMS fields are discriminated using the Ni/(Cr + Mn) vs. Ti + V or Ca + Al + Mn vs. Ti + V diagrams that discriminate for IOCG, Kiruna, porphyry Cu, BIF, skarn, Fe-Ti, and V deposits.
  • Publisher: Berlin/Heidelberg: Springer-Verlag
  • Language: English
  • Identifier: ISSN: 0026-4598
    EISSN: 1432-1866
    DOI: 10.1007/s00126-011-0334-y
  • Source: Alma/SFX Local Collection
    ProQuest Central
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