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Khudolaz Complex

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Journal Article

Geochemistry of Accessory Apatite from the Cu–Ni–Sulfide-Bearing Ultramafic–Mafic Rocks of the Khudolaz Complex (South Urals) as a Monitor of Magmatic and Metasomatic Processes

I.R. Rakhimov, I.A. Gottman, V.V. Kholodnov, V.S. Chervyakovskiy
Published: 01 December 2022
Russ. Geol. Geophys. (2022) 63 (12): 1388–1406.
DOI: https://doi.org/10.2113/RGG20214423
...I.R. Rakhimov; I.A. Gottman; V.V. Kholodnov; V.S. Chervyakovskiy Abstract —We present results of mineralogical and geochemical studies (optical and electron microscopy, probe microanalysis, and LA-ICP-MS) of accessory apatite from the rocks of four ore-bearing massifs of the Khudolaz Complex...
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Photomicrographs of the Khudolaz Complex rock and ore samples in which apat...

Published: 01 December 2022
Fig. 2. Photomicrographs of the Khudolaz Complex rock and ore samples in which apatite was studied: a – disseminated Cu–Ni sulfide ore (sample 3485), b – intensely metasomatized gabbro with sulfide dissemination (sample 3760, polished section), c – unaltered gabbro with poor sulfide
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REE patterns of apatite from the ultramafic–mafic rocks of sulfide-bearing ...

Published: 01 December 2022
Fig. 7. REE patterns of apatite from the ultramafic–mafic rocks of sulfide-bearing massifs of the Khudolaz Complex: a – chondrite-normalized ( Lyubetskaya and Korenaga, 2007 ); b – host-rock normalized.
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Binary variation diagrams (wt.%) for apatite from the ultramafic–mafic rock...

Published: 01 December 2022
Fig. 8. Binary variation diagrams (wt.%) for apatite from the ultramafic–mafic rocks of sulfide-bearing massifs of the Khudolaz Complex. Arrows show the accumulation trends of major elements and halogens.
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F–Cl–OH (at.%), F–Cl, and Cl–SO 3 (wt.%) diagrams for apatite from the ult...

Published: 01 December 2022
Fig. 6. F–Cl–OH (at.%), F–Cl, and Cl–SO 3 (wt.%) diagrams for apatite from the ultramafic–mafic rocks of sulfide-bearing massifs of the Khudolaz Complex. Ap-1 – magmatic unaltered apatite, Ap-2 – metasomatized apatite.
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FeO–MgO diagram for apatite from different rock associations: Ap-1 and Ap-2...

Published: 01 December 2022
Fig. 9. FeO–MgO diagram for apatite from different rock associations: Ap-1 and Ap-2 – Khudolaz Complex (see the text for details), S – norites, gabbro-diorites, and quartz diorites of the Sudbury massif ( Warner et al., 1998 ), CK – granodiorites of Central Kazakhstan massifs ( Cao et al., 2012
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Postmagmatic morphologic changes of apatite grains in the ultramafic–mafic ...

Published: 01 December 2022
Fig. 4. Postmagmatic morphologic changes of apatite grains in the ultramafic–mafic rocks of sulfide-bearing massifs of the Khudolaz Complex (plane-polarized light): a and b – cracked apatite crystals intergrown with phlogopite (partly chloritized) and amphibole, respectively, c and d
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Examples of alteration and replacement of apatite in the metasomatized ultr...

Published: 01 December 2022
Fig. 5. Examples of alteration and replacement of apatite in the metasomatized ultramafic–mafic rocks of sulfide-bearing massifs of the Khudolaz Complex (plane-polarized light): a – resorbed apatite crystal in the argillized matrix, b – actinolite pseudomorphs after apatite in carbonatized
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Parageneses of apatite and silicate minerals in the unaltered ultramafic–ma...

Published: 01 December 2022
Fig. 3. Parageneses of apatite and silicate minerals in the unaltered ultramafic–mafic rocks of sulfide-bearing massifs of the Khudolaz Complex (transmitted light): a – apatite inclusions in amphibole, b – apatite crystal between plagioclase and clinopyroxene grains, c – skeleton apatite
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Schematic geological map of the Khudolaz trough, after Rakhimov et al. ( 20...

Published: 01 December 2022
Fig. 1. Schematic geological map of the Khudolaz trough, after Rakhimov et al. ( 2021 ): 1–8 — stratified volcanosedimentary deposits of: 1 – Irendyk Formation (D 2 ef 1 ), 2 – Karamalytash Formation (D 2 ef 2 ), 3 – Yarlykapovo Formation (D 2 ef 2 ), 4 – Ulutau Formation (D 2–3 zv–f
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Binary Y–Sr ( a ) and Mn–Sr ( b ) discrimination diagrams for apatite from ...

Published: 01 December 2022
Fig. 10. Binary Y–Sr ( a ) and Mn–Sr ( b ) discrimination diagrams for apatite from layered sulfide-bearing complexes (dashed line): Khudolaz (Ap-1, Ap-2), Bushveld (B) ( Boudreau and Kruger, 1990 ), and Sudbury (S) ( Warner et al., 1998 ). The composition fields of apatite from different types
Journal Article

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Journal: Economic Geology
Published: 01 March 2022
Economic Geology (2022) 117 (2): 511–512.
DOI: https://doi.org/10.5382/econgeo.117.2.ip01
..., Southern Urals M.T. Krupenin, A.B. Kuznetsov, and G.V. Konstantinova 324 Multi-Stage Magmatic-Hydrothermal Sulfide-PGE Mineralization of the Khudolaz Complex (South Urals) I.R. Rakhimov, A.V. Vishnevskiy, and A.G. Vladimirov 341 Pre-Visean Bauxites and Iron-Aluminum Ores Deposit of the KMA and Prospects...
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The Akhunovo–Petropavlovsk Granitoid Area as a Continental-Margin Center of the Long-Term Mantle–Crust Interaction: The Role of Subductional and Rift–Plume Sources

V.V. Kholodnov, E.S. Shagalov, G.A. Kallistov, G.Yu. Shardakova, D.N. Salikhov, E.V. Konovalova
Published: 01 June 2021
Russ. Geol. Geophys. (2021) 62 (6): 648–665.
DOI: https://doi.org/10.2113/RGG20194121
... O 5 (up to 0.54%) and correspond to the tholeiite series. These intrusions host the skarn–magnetite ores of the small Kanakai deposit. Rocks of the second type ( Faizullino complex ) have high MgO contents (up to 14 wt.%) and are enriched in LILE. Rocks of the third type, especially the Khudolaz...
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Includes: Supplemental Content
Journal Article

Zaykovite, Rh 3 Se 4 , a new mineral from the Kazan placer, South Urals, Russia

Elena V. Belogub, Sergey N. Britvin, Vladimir V. Shilovskikh, Leonid A. Pautov, Vasiliy A. Kotlyarov, Elisaveta V. Zaykova
Published: 16 November 2022
Mineralogical Magazine (2023) 87 (1): 118–129.
DOI: https://doi.org/10.1180/mgm.2022.122
.... , Salikhov D.N. , Vishnevskiy A.V. and Vladimirov A.G. ( 2021a ) Multi-stage magmatic-hydrothermal sulfide-PGE mineralization of the Khudolaz complex...
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Interesting Papers in Other Journals

Journal: Economic Geology
Published: 01 December 2021
Economic Geology (2021) 116 (8): 2011–2015.
DOI: https://doi.org/10.5382/econgeo.116.8.ip01
..., V.V. Ratkin, and O.A. Eliseeva High sulfur solubility in subducted sediment melt under both reduced Genesis of sulfide and platinum-metal mineralization of the Khudolaz and oxidized conditions: With implications for S recycling in Complex (southern Urals) I.R. Rakhimov and V.N. Puchkov subduction zone...
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Biostratigraphy and lithostratigraphy of the Mid-Carboniferous boundary beds in the Muradymovo section (South Urals, Russia)

ELENA KULAGINA, SVETLANA NIKOLAEVA, VLADIMIR PAZUKHIN, NATALIYA KOCHETOVA
Published: 08 October 2013
Geological Magazine (2014) 151 (2): 269–298.
DOI: https://doi.org/10.1017/S0016756813000599
... of the Khudolaz section (Stepanova & Kucheva, 2006 ) and the Neoarchaediscus regularis – Biseriella parva Zone of the Central Tien Shan (Orlov-Labkovsky et al . 2003 ). This zone correlates with the Eostaffellina paraprotvae Zone of the GSSR and E...
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Journal Article

Taxonomy and Evolution of Visean–Roadian (Late Mississippian–Guadalupian) Lasiodiscidae

Elena I. Kulagina, Tatiana V. Filimonova
Published: 01 April 2020
Journal of Foraminiferal Research (2020) 50 (2): 141–173.
DOI: https://doi.org/10.2113/gsjfr.50.2.141
... & Jartzeva, 1956 , pl. 1, fig., 10), western continuation of the Donets basin (near Varvarovka), Starobeshevo sedimentary complex, presumed equivalents of Limestone D 5 and lower part of Formation C 1 4 in the Donets basin; 4, No. 121/361, sample 74/10, Muradymovo, Bashkirian, Bogdanovkian ( Kulagina et...
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Book Chapter

Russian regional Carboniferous stratigraphy

Author(s)
Alexander S. Alekseev, Svetlana V. Nikolaeva, Nataliya V. Goreva, Nina B. Donova, Olga L. Kossovaya, Elena I. Kulagina, Nadezhda A. Kucheva, Alena V. Kurilenko, Ruslan V. Kutygin, Lyudmila I. Popeko, Tatyana I. Stepanova
Book: The Carboniferous Timescale
Series: Geological Society, London, Special Publications
Publisher: Geological Society of London
Published: 13 April 2022
DOI: 10.1144/SP512-2021-134
EISBN: 9781786205827
.... The substage is represented by a complex of alluvial, mainly sandy sediments, filling several systems of shallow river valleys, alternating at the top with a cyclic succession predominantly of clays with four (in the most complete sequences) beds of shallow-water limestones with rich assemblages of brachiopods...
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Abstract
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Abstract Several existing schemes for Carboniferous stratigraphy officially adopted in regions of the Russian Federation are summarized and discussed. These regions with different geological histories and distinct depositional settings include the Moscow Basin, the Urals, North Timan, Siberia, the Kuznetsk Basin and the Mongol–Okhotsk, Verkhoyansk–Okhotsk and Kolyma–Omolon regions. Broad correlations based on macro- and microfossils are possible between the regions, while all regional schemes are correlated to the official Russian General Stratigraphic Scheme for the Carboniferous, using zonations based on orthostratigraphic fossils. The Russian General Stratigraphic Scheme is correlated to the International Stratigraphic Scale using ammonoids, conodonts, foraminifers and palynomorphs.