Ruthenium variation in chromite from komatiites and komatiitic basalts-a potential mineralogical indicator for nickel sulfide mineralization

Marek Locmelis; Marco Fiorentini; S.J. Barnes; N.J. Pearson

doi:10.2113/econgeo.108.2.355

Ruthenium variation in chromite from komatiites and komatiitic basalts-a potential mineralogical indicator for nickel sulfide mineralization

Marek Locmelis, Marco Fiorentini, S.J. Barnes, N.J. Pearson

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

More than 390 chromite grains from komatiites and komatiitic basalts from the Yilgarn craton of WesternAustralia and the Finnish part of the Fennoscandian Shield were analyzed using in situ laser ablation inductivelycoupled plasma mass spectrometry (LA-ICP-MS) to identify ruthenium (Ru) signatures in chromiteassociated with nickel sulfide-bearing rocks. Results indicate a potential method to discriminate mineralizedand barren komatiite and komatiitic basalt units based on Ru concentrations in chromite and indicate potentialfor chromite to be used as a resistate indicator mineral in exploration for komatiite-associated nickel sulfidedeposits.Chromites from barren komatiites and komatiitic basalts display Ru concentrations mostly between ∼150and 600 ppb. Chromites from mineralized units have distinctly lower Ru contents (

Original language	English
Pages (from-to)	355-364
Journal	Economic Geology and the Bulletin of the Society of Economic Geologists
Volume	108
Issue number	2
DOIs	https://doi.org/10.2113/econgeo.108.2.355
Publication status	Published - 2013

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title = "Ruthenium variation in chromite from komatiites and komatiitic basalts-a potential mineralogical indicator for nickel sulfide mineralization",

abstract = "More than 390 chromite grains from komatiites and komatiitic basalts from the Yilgarn craton of WesternAustralia and the Finnish part of the Fennoscandian Shield were analyzed using in situ laser ablation inductivelycoupled plasma mass spectrometry (LA-ICP-MS) to identify ruthenium (Ru) signatures in chromiteassociated with nickel sulfide-bearing rocks. Results indicate a potential method to discriminate mineralizedand barren komatiite and komatiitic basalt units based on Ru concentrations in chromite and indicate potentialfor chromite to be used as a resistate indicator mineral in exploration for komatiite-associated nickel sulfidedeposits.Chromites from barren komatiites and komatiitic basalts display Ru concentrations mostly between ∼150and 600 ppb. Chromites from mineralized units have distinctly lower Ru contents (",

author = "Marek Locmelis and Marco Fiorentini and S.J. Barnes and N.J. Pearson",

year = "2013",

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language = "English",

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pages = "355--364",

journal = "Economic Geology and the Bulletin of the Society of Economic Geologists",

issn = "0361-0128",

publisher = "Society of Economic Geologists",

number = "2",

}

Ruthenium variation in chromite from komatiites and komatiitic basalts-a potential mineralogical indicator for nickel sulfide mineralization. / Locmelis, Marek; Fiorentini, Marco; Barnes, S.J. et al.
In: Economic Geology and the Bulletin of the Society of Economic Geologists, Vol. 108, No. 2, 2013, p. 355-364.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Ruthenium variation in chromite from komatiites and komatiitic basalts-a potential mineralogical indicator for nickel sulfide mineralization

AU - Locmelis, Marek

AU - Fiorentini, Marco

AU - Barnes, S.J.

AU - Pearson, N.J.

PY - 2013

Y1 - 2013

N2 - More than 390 chromite grains from komatiites and komatiitic basalts from the Yilgarn craton of WesternAustralia and the Finnish part of the Fennoscandian Shield were analyzed using in situ laser ablation inductivelycoupled plasma mass spectrometry (LA-ICP-MS) to identify ruthenium (Ru) signatures in chromiteassociated with nickel sulfide-bearing rocks. Results indicate a potential method to discriminate mineralizedand barren komatiite and komatiitic basalt units based on Ru concentrations in chromite and indicate potentialfor chromite to be used as a resistate indicator mineral in exploration for komatiite-associated nickel sulfidedeposits.Chromites from barren komatiites and komatiitic basalts display Ru concentrations mostly between ∼150and 600 ppb. Chromites from mineralized units have distinctly lower Ru contents (

AB - More than 390 chromite grains from komatiites and komatiitic basalts from the Yilgarn craton of WesternAustralia and the Finnish part of the Fennoscandian Shield were analyzed using in situ laser ablation inductivelycoupled plasma mass spectrometry (LA-ICP-MS) to identify ruthenium (Ru) signatures in chromiteassociated with nickel sulfide-bearing rocks. Results indicate a potential method to discriminate mineralizedand barren komatiite and komatiitic basalt units based on Ru concentrations in chromite and indicate potentialfor chromite to be used as a resistate indicator mineral in exploration for komatiite-associated nickel sulfidedeposits.Chromites from barren komatiites and komatiitic basalts display Ru concentrations mostly between ∼150and 600 ppb. Chromites from mineralized units have distinctly lower Ru contents (

U2 - 10.2113/econgeo.108.2.355

DO - 10.2113/econgeo.108.2.355

M3 - Article

SN - 0361-0128

VL - 108

SP - 355

EP - 364

JO - Economic Geology and the Bulletin of the Society of Economic Geologists

JF - Economic Geology and the Bulletin of the Society of Economic Geologists

IS - 2

ER -

Ruthenium variation in chromite from komatiites and komatiitic basalts-a potential mineralogical indicator for nickel sulfide mineralization

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