Cobalt mineralization in the Altai-Sayan orogen: Age and correlation with magmatism

I. G. Tretiakova; A. S. Borisenko; V. I. Lebedev; G. G. Pavlova; V. A. Goverdovsky; A. V. Travin

doi:10.1016/j.rgg.2010.08.012

Cobalt mineralization in the Altai-Sayan orogen: Age and correlation with magmatism

I. G. Tretiakova^*, A. S. Borisenko, V. I. Lebedev, G. G. Pavlova, V. A. Goverdovsky, A. V. Travin

^*Corresponding author for this work

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

21 Citations (Scopus)

Abstract

The paper discusses the spatiotemporal and genetic relationships of hydrothermal Co mineralization in the Altai-Sayan orogen with mafic, alkaline mafic, and granitoid magmatism on the basis of isotopic, geochemical, and geochronological investigations. Four stages of Co mineralization have been distinguished for this region: Early Devonian (D₁), Late Devonian-Early Carboniferous (D₃-C₁), Permo-Triassic (P₂-T), and Early Cretaceous (K₁). They correspond to periods of large-scale mafic magmatism. Isotopic (Pb, Sr, He) and geochemical studies have shown that Co mineralization is genetically related to mafic and granitoid magmatism. Also, these studies have confirmed that Co deposits are formed with the participation of mantle fluids and are related to chambers of mafic and alkaline mafic melts. Besides, it has been found that ore originated both from magmatic sources and host rocks. A pulsed facies endogenic zonation has been established for Co deposits, Co-bearing ore clusters, and zones with high-temperature Co-As and low-temperature Ni-Co-As mineralization. It has been first established that ores at hydrothermal Co deposits are rich in Pt and Pd.

Original language	English
Pages (from-to)	1078-1090
Number of pages	13
Journal	Russian Geology and Geophysics
Volume	51
Issue number	9
DOIs	https://doi.org/10.1016/j.rgg.2010.08.012
Publication status	Published - Sept 2010
Externally published	Yes

Keywords

Altai-Sayan orogen
Cobalt deposits
Granitoids
Mafic magmatism
Mineralization age

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10.1016/j.rgg.2010.08.012

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title = "Cobalt mineralization in the Altai-Sayan orogen: Age and correlation with magmatism",

abstract = "The paper discusses the spatiotemporal and genetic relationships of hydrothermal Co mineralization in the Altai-Sayan orogen with mafic, alkaline mafic, and granitoid magmatism on the basis of isotopic, geochemical, and geochronological investigations. Four stages of Co mineralization have been distinguished for this region: Early Devonian (D1), Late Devonian-Early Carboniferous (D3-C1), Permo-Triassic (P2-T), and Early Cretaceous (K1). They correspond to periods of large-scale mafic magmatism. Isotopic (Pb, Sr, He) and geochemical studies have shown that Co mineralization is genetically related to mafic and granitoid magmatism. Also, these studies have confirmed that Co deposits are formed with the participation of mantle fluids and are related to chambers of mafic and alkaline mafic melts. Besides, it has been found that ore originated both from magmatic sources and host rocks. A pulsed facies endogenic zonation has been established for Co deposits, Co-bearing ore clusters, and zones with high-temperature Co-As and low-temperature Ni-Co-As mineralization. It has been first established that ores at hydrothermal Co deposits are rich in Pt and Pd.",

keywords = "Altai-Sayan orogen, Cobalt deposits, Granitoids, Mafic magmatism, Mineralization age",

author = "Tretiakova, {I. G.} and Borisenko, {A. S.} and Lebedev, {V. I.} and Pavlova, {G. G.} and Goverdovsky, {V. A.} and Travin, {A. V.}",

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AU - Tretiakova, I. G.

AU - Borisenko, A. S.

AU - Lebedev, V. I.

AU - Pavlova, G. G.

AU - Goverdovsky, V. A.

AU - Travin, A. V.

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AB - The paper discusses the spatiotemporal and genetic relationships of hydrothermal Co mineralization in the Altai-Sayan orogen with mafic, alkaline mafic, and granitoid magmatism on the basis of isotopic, geochemical, and geochronological investigations. Four stages of Co mineralization have been distinguished for this region: Early Devonian (D1), Late Devonian-Early Carboniferous (D3-C1), Permo-Triassic (P2-T), and Early Cretaceous (K1). They correspond to periods of large-scale mafic magmatism. Isotopic (Pb, Sr, He) and geochemical studies have shown that Co mineralization is genetically related to mafic and granitoid magmatism. Also, these studies have confirmed that Co deposits are formed with the participation of mantle fluids and are related to chambers of mafic and alkaline mafic melts. Besides, it has been found that ore originated both from magmatic sources and host rocks. A pulsed facies endogenic zonation has been established for Co deposits, Co-bearing ore clusters, and zones with high-temperature Co-As and low-temperature Ni-Co-As mineralization. It has been first established that ores at hydrothermal Co deposits are rich in Pt and Pd.

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KW - Mafic magmatism

KW - Mineralization age

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Cobalt mineralization in the Altai-Sayan orogen: Age and correlation with magmatism

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Keywords

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