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Amudzhikan Complex

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Journal Article
Published: 01 March 2014
Russ. Geol. Geophys. (2014) 55 (3): 335–348.
...; gabbro of the Tukuringra complex—156.3 ± 4.8 Ma; granites and pegmatites of the Tukuringra complex—153.1 ± 3.8, 154.0 ± 4.4, 156.8 ± 4.0, and 151.2 ± 3.2 Ma; granodiorites, granites, and leucogranites of the Amudzhikan complex—131.7 ± 2.4, 134.5 ± 2.8, and 131.6 ± 4.2 Ma; and lamprophyre dikes—125.2...
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Journal Article
Published: 01 March 2009
Russ. Geol. Geophys. (2009) 50 (3): 188–194.
...). According to the age and general scheme of evolution of the Early Cretaceous magmatism in the Selenga–Stanovoi superterrane, the metasomatites of the Berezitovoe deposit are nearly coeval to the intrusive rocks of the Amudzhikan complex (132–128 Ma). The revealed platinum potential of gold-polymetallic ores...
FIGURES
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Ar release spectra of monofractions from the rocks of the <span class="search-highlight">Amudzhikan</span> comple...
Published: 01 March 2014
Fig. 4. Ar release spectra of monofractions from the rocks of the Amudzhikan complex, lamprophyre dikes, and ore metasomatites of the Berezitovoe gold–complex-metal deposit. Sample numbers follow the text and Tables 1 – 3 .
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Schematic map of the occurrence of the Berezitovoe deposit. Compiled after ...
Published: 01 March 2009
complex of Early Proterozoic and Mesozoic ages. 4 . Late Jurassic subalkalic granitoids of the Amudzhikan complex: massifs ( a ), small bodies and dikes ( b ). 5 . Late Permian trachyandesites. 6 . Mesozoic rhyolites and trachyrhyolites. 7 . Cenozoic loose deposits. 8 . Faults. 9 . Berezitovoe
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Location of the Berezitovoe deposit in the main regional geologic structure...
Published: 01 March 2014
) of the Amudzhikan complex; 5 , Late Permian trachyandesites of the Kuitun (Chichatka) complex; 6 , Late Mesozoic rhyolites and trachyrhyolites; 7 , Cenozoic loose deposits; 8 , faults; 9 , Berezitovoe deposit; 10 , localities of sampling for geochronological studies and their numbers. The inset shows
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Schematic geologic structure of metasomatic zone 1 of the Berezitovoe depos...
Published: 01 March 2009
Fig. 2. Schematic geologic structure of metasomatic zone 1 of the Berezitovoe deposit in the horizon of exploring adits 5 and 6. Compiled after Vakh (1989) and Eirish (2002) , with our supplements. 1 . Late Jurassic subalkalic granitoids of the Amudzhikan complex. 2–5 . Main types of ore
Journal Article
Published: 01 June 2019
Russ. Geol. Geophys. (2019) 60 (6): 602–615.
.... Its granitoids differ in age and composition from the granitoids of the Amanan complex and must be separated as an independent taxonomic unit after an additional geological study. The second, Amudzhikan–Sretensk, complex has an isotopic age of 151.7 ± 1.9 Ma and might be related to the collision...
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Classification diagrams for adakites.  a , After Martin ( 1999 ),  b , afte...
Published: 01 June 2019
Fig. 4. Classification diagrams for adakites. a , After Martin ( 1999 ), b , after Defant and Drummond ( 1990 ). 1 , 2 , Amanan(?) complex: 1 , gabbro, 2 , tonalites; 3 , 4, Amudzhikan–Sretensk complex: 3 , hybrid porphyry, 4, granitoids. Gray field, derivates of slab magmas, white field
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Cr–MgO ( a ) and Mg#–SiO 2  ( b ) diagrams for granitoids of the <span class="search-highlight">Amudzhikan</span>...
Published: 01 June 2019
Fig. 6. Cr–MgO ( a ) and Mg#–SiO 2 ( b ) diagrams for granitoids of the Amudzhikan–Sretensk complex. Mg# = Mg 2+ /(Mg 2+ + Fe 2+ + Fe 3+ ). Composition of rocks: 1 , hybrid porphyry; 2–4 , granitoids of: 2 , first, 3 , second, 4 , third phases.
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Schematic geological map of the Kara ore cluster ( Spiridonov et al., 2006 ...
Published: 01 June 2019
Fig. 2. Schematic geological map of the Kara ore cluster ( Spiridonov et al., 2006 ). 1 , Quaternary deposits; 2 , dikes (J 3 ) of: a , grorudites, b , hybrid porphyry; 3 , biotite–amphibole granodiorites and granites of the Amudzhikan–Sretensk complex; 4, andesite porphyrites (J 1 ); 5
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Sm/La–Th/La diagram for the Ust’-Kara granitoids. Composition of rocks:  1 ...
Published: 01 June 2019
Fig. 7. Sm/La–Th/La diagram for the Ust’-Kara granitoids. Composition of rocks: 1 , 2 , Amanan(?) complex: 1 , gabbro, 2 , tonalites; 3–6 , Amudzhikan–Sretensk complex: 3 , hybrid porphyry, 4, first phase, 5 , second phase, 6 , third phase; 7 , depleted mantle, after McDonough and Sun
Journal Article
Published: 01 November 2007
Russ. Geol. Geophys. (2007) 48 (11): 901–912.
... ) and dikes of alkaline rocks (J 3 -K 1 ), which include hybrid porphyries, “grorudites”, etc. They are characterized by telescoping of ores, expressed best of all on joints of ore-bearing sites. The origin of the Kara-Chacha massif (Amudzhikan-Sretensk complex) is connected with pre-ore areal propylitization...
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Geologic location (simplified after  Rutshtein (1992) ) ( A ) and geologic ...
Published: 01 March 2015
Fig. 1. Geologic location (simplified after Rutshtein (1992) ) ( A ) and geologic scheme ( B ) of the Zhireken deposit. A : 1 – 3 , volcanosedimentary series: 1 , Turga (K 1 ); 2 , Nercha (J 3 ); 3 , Nyukzha (J 2–3 ); 4 – 6 , intrusive complexes: 4 , Amudzhikan–Sretensk (J 3 ); 5
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Geological section along basic line 3-DV.  1 , alluvial sands, sandy loam, ...
Published: 01 December 2011
breccias, tuffites, coal lenses; 6 , a , Amudzhikan complex (γξJ 3 a): granosyenites, granodiorites, quartz syenites, granites; b , Upper Seligdar complex (ξJ 3 vs): syenite-porphyry, syenites, quartz syenites, monzonite-porphyry; 7 , a , Jurassic sediments of the Upper Amur trough: sandstones
Journal Article
Published: 01 October 2015
Russ. Geol. Geophys. (2015) 56 (10): 1384–1393.
... that the sources of mineralization are the ore-producing granitoids of the Amudzhikan–Sretensk intrusive assemblage within the Aprelkovo ore–magmatic system (OMS) (Os’kina and Urguchan plutons). This is confirmed by Pb isotope compositions ( 207 Pb/ 204 Pb and 206 Pb/ 204 Pb) for the pyrite and arsenopyrite...
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Journal Article
Published: 01 June 2010
Russ. Geol. Geophys. (2010) 51 (6): 661–671.
..., granites, granite porphyries, amazonite granite, 8 , Amudzhikan–Shakhtama (γδJ 2-3 as): diorites, quartz monzonites, gabbro-diorites, subalkalic gabbro ( a ), undifferentiated coarsely pseudoporphyritic granites and quartz syenites ( b ), 9 , Borshchovochnyi complex (γJ 2-3 br): granites, granodiorites...
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Journal Article
Journal: Economic Geology
Published: 01 March 2010
Economic Geology (2010) 105 (2): 395–416.
... granodiorite, with minor biotite-amphibole-two feldspar diorite, granosyenite, granites, alaskite granite. The Middle Jurassic-Early Cretaceous Amudzhikan-Sretensky Complex (J 2 -K 1 ) is the youngest magmatic suite of the region and includes subvolcanic and effusive high potassium rocks showing a large range...
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Late Jurassic–Early Cretaceous (160–100 Ma) rift-related magmatism of the W...
Published: 01 February 2014
, Amudzhikan-Sretensk, Kukulbei complexes); 5 – 16 , deposits and ore sites: 5 , fluorite; 6 , base metals; 7 , tungsten; 8 , tin; 9 , gold; 10 , gold–silver; 11 , uranium; 12 , niobium–tantalum; 13 , rare earth elements; 14 , copper; 15 , molybdenum; 16 , apatite; 17 , carbonatite complexes
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Geological–metallogenic sketch map of the Balei ore district (Transbaikalia...
Published: 01 June 2010
, migmatites: a , central part of the Precambrian Duturul uplift, b , other uplifts; 7–9 , Late Mesozoic igneous complexes: 7 , Kukul’bei (γJ 3 kk): leucogranites, granites, granite porphyries, amazonite granite, 8 , Amudzhikan–Shakhtama (γδJ 2-3 as): diorites, quartz monzonites, gabbro-diorites
Journal Article
Published: 01 June 2016
European Journal of Mineralogy (2016) 28 (3): 581–591.
.... The formation of gold deposits in Transbaikalia seems to be controlled by small intermediate and felsic subvolcanic intrusions enriched in alkalis, which belong to the Middle to Late Jurassic Amudzhikan–Sretensky complex and comprise granite and granodiorite porphyry, fracture-related intrusions and stocks...
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