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Journal Article

Komatiitic Subvolcanic Rocks in the Mount Khanlauta Massif, Serpentinite Belt (Kola Peninsula)

A.Yu. Barkov, A.A. Nikiforov, L.P. Barkova, A.E. Izokh, V.N. Korolyuk
Published: 01 September 2022
Russ. Geol. Geophys. (2022) 63 (9): 981–1000.
DOI: https://doi.org/10.2113/RGG20204297
...A.Yu. Barkov; A.A. Nikiforov; L.P. Barkova; A.E. Izokh; V.N. Korolyuk Abstract —For the first time, exposures of ultramafic rocks of subvolcanic origin have been investigated at the foot of Mount Khanlauta (Kola Peninsula) located at a distance of ~2 km from the southwestern margin of the Pados...
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a, b : Location of the study area at the foot of <span class="search-highlight">Mount</span> <span class="search-highlight">Khanlauta</span>, near the ...

a, b : Location of the study area at the foot of Mount Khanlauta, near the ...

Published: 01 September 2022
Fig. 2. a, b : Location of the study area at the foot of Mount Khanlauta, near the Pados-Tundra layered complex. Figure 2 b shows the sampling location of ultramafic rocks (from KHN-1 to KHN-20) of the Mount Khanlauta massif on a SAS. Planet image. Zones I and II are distinguished based
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“Blocky” bedrock exposures of the <span class="search-highlight">Mount</span> <span class="search-highlight">Khanlauta</span> ultramafic massif ( a ), ...

“Blocky” bedrock exposures of the Mount Khanlauta ultramafic massif ( a ), ...

Published: 01 September 2022
Fig. 3. “Blocky” bedrock exposures of the Mount Khanlauta ultramafic massif ( a ), containing a fragment of columnar jointing that is hexagonal in cross-section (b).
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a – d : Plot of contents of MgO vs. CaO ( a ), NiO ( b ), Al 2 O 3 ( c ), ...

a – d : Plot of contents of MgO vs. CaO ( a ), NiO ( b ), Al 2 O 3 ( c ), ...

Published: 01 September 2022
Fig. 6. a – d : Plot of contents of MgO vs. CaO ( a ), NiO ( b ), Al 2 O 3 ( c ), and V vs. Y ( d ) in ultramafic rocks of the Mount Khanlauta massif and the sill-like Chapesvara II body ( Barkov et al., 2019 ). e : plot of contents of MgO vs. SiO 2 , showing compositions and the evolutionary
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Plot of values of Mg# vs. NiO ( a ) and MnO ( b ) in ultramafic rocks of th...

Plot of values of Mg# vs. NiO ( a ) and MnO ( b ) in ultramafic rocks of th...

Published: 01 September 2022
Fig. 9. Plot of values of Mg# vs. NiO ( a ) and MnO ( b ) in ultramafic rocks of the Mount Khanlauta and Chapesvara complexes; Plot of values SiO 2 vs. Na 2 O ( c ), and MgO vs. MnO ( d ), showing compositional variations of tremolite and anthophyllite, respectively, from ultramafic rocks
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The CI–chondrite-normalized contents of REE, Hf and Th in compositions (ICP...

The CI–chondrite-normalized contents of REE, Hf and Th in compositions (ICP...

Published: 01 September 2022
Fig. 8. The CI–chondrite-normalized contents of REE, Hf and Th in compositions (ICP-MS) of ultramafic rocks of the Mount Khanlauta massif. The CI chondrite-normalizing values by McDonough and Sun ( 1995 ) were used.
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a – d : plot of contents MgO vs. MnO ( a ), NiO ( b ), ZnO ( c ), and MnO v...

a – d : plot of contents MgO vs. MnO ( a ), NiO ( b ), ZnO ( c ), and MnO v...

Published: 01 September 2022
Fig. 10. a – d : plot of contents MgO vs. MnO ( a ), NiO ( b ), ZnO ( c ), and MnO vs. ZnO ( d ), showing compositional variations of chromian spinel in ultramafic rocks of the Mount Khanlauta and Chapesvara I-II bodies ( Barkov et al., 2019 ). The symbols are the same as those used in Fig. 6 .
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Plot of contents of Zr vs. Nb ( a ), Nd vs. Sm ( b ), Hf vs. Th ( c ) and v...

Plot of contents of Zr vs. Nb ( a ), Nd vs. Sm ( b ), Hf vs. Th ( c ) and v...

Published: 01 September 2022
Fig. 7. Plot of contents of Zr vs. Nb ( a ), Nd vs. Sm ( b ), Hf vs. Th ( c ) and values of the index (Gd/Yb) N vs. Eu/Eu* ( d ) in ultramafic rocks of the Mount Khanlauta massif and the Chapesvara II sill-like body after Barkov et al. ( 2019 ). The symbols are the same as those used in Fig
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a – d : plot of contents MgO vs. Al 2 O 3 ( a ), V 2 O 3 ( b ), and Mg# v...

a – d : plot of contents MgO vs. Al 2 O 3 ( a ), V 2 O 3 ( b ), and Mg# v...

Published: 01 September 2022
Fig. 11. a – d : plot of contents MgO vs. Al 2 O 3 ( a ), V 2 O 3 ( b ), and Mg# vs. Cr# ( c ), Fe 3+ # ( d ), showing compositional variations of chromian spinel in ultramafic rocks of the Mount Khanlauta and Chapesvara I-II bodies ( Barkov et al., 2019 ). The symbols are the same as those
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Plot of bulk-rock contents of MgO versus SiO 2 both expressed in weight ...

Plot of bulk-rock contents of MgO versus SiO 2 both expressed in weight ...

Published: 26 September 2024
refers to the Dunite Block of the Dunite Zone) and with the differentiated flow of the Mount Khanlauta suite (KHNL) after Barkov et al. (2023a) . Also shown for comparison are schematic boundaries of typical fields of boninites, komatiitic basalts, and komatiites of the Barberton Belt in South Africa
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Back-scattered electron (BSE) images show representative textures of ultram...

Back-scattered electron (BSE) images show representative textures of ultram...

Published: 01 September 2022
Fig. 4. Back-scattered electron (BSE) images show representative textures of ultramafic rocks of the Mount Khanlauta massif. Zoned grains of chromian spinel (Chr), having rims, are located within intergranular spaces of olivine (Ol) ( a ). An association of orthopyroxene (Opx) and olivine (Ol
Journal Article

The Significance of Hypermagnesian Clinopyroxene in the Yanisvaara Ultrabasic Complex, Kola Peninsula, Russia

Andrei Y. Barkov, Andrey A. Nikiforov, Robert F. Martin, Vladimir N. Korolyuk, Sergey A. Silyanov
Published: 26 September 2024
The Canadian Journal of Mineralogy and Petrology (2024) 62 (5): 765–780.
DOI: https://doi.org/10.3749/2300071
... refers to the Dunite Block of the Dunite Zone) and with the differentiated flow of the Mount Khanlauta suite (KHNL) after Barkov et al. (2023a) . Also shown for comparison are schematic boundaries of typical fields of boninites, komatiitic basalts, and komatiites of the Barberton Belt in South Africa...
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Journal Article

Mineral–Geochemical and Geotectonic Features of the Lotmvara-II Ultrabasic Sill, Serpentinite Belt (Kola Peninsula)

A.Y. Barkov, A.A. Nikiforov, V.N. Korolyuk, R.F. Martin
Published: 01 October 2023
Russ. Geol. Geophys. (2023) 64 (10): 1161–1178.
DOI: https://doi.org/10.2113/RGG20234538
... complex, Serpentinite Belt, Kola Peninsula, Russia . Geosciences 12 , 323 , doi: 10.3390/geosciences12090323 . Barkov , A.Yu. , Nikiforov , A.A. , Barkova , L.P. , Izokh , A.E. , Korolyuk , V.N. , 2022b . Komatiitic subvolcanic rocks in the Mount Khanlauta Massif...
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Includes: Supplemental Content
Journal Article

The chromian spinels of the Lyavaraka ultrabasic complex, Serpentinite Belt, Kola Peninsula, Russia: Patterns of zoning, hypermagnesian compositions, and early oxidation

Andrei Y. Barkov, Andrey A. Nikiforov, Vladimir N. Korolyuk, Larisa P. Barkova, Robert F. Martin
Published: 13 December 2021
The Canadian Mineralogist (2021) 59 (6): 1693–1709.
DOI: https://doi.org/10.3749/canmin.2100019
...., Izokh A.E., & Korolyuk, V.N. (2022) Komatiitic subvolcanic rocks in the Mount Khanlauta massif, Serpentinite Belt, Kola Peninsula . Russian Geology and Geophysics 63 (in press...
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