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Gargan Block

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Journal Article
Published: 01 December 2013
Russ. Geol. Geophys. (2013) 54 (12): 1450–1457.
... deposits in the Gargan block of East Sayan. Similarities are observed in the sedimentation and tectonic evolution of the regions. The conditions of the deposition of quartzites (forearc basins within siliceous-carbonate rocks with slight tholeiitic volcanism and a small amount of terrigenous material...
FIGURES | View All (7)
Journal Article
Published: 01 December 2011
Russ. Geol. Geophys. (2011) 52 (12): 1662–1671.
... Group and, to a lesser extent, the crystalline deposits of the Gargan block and rocks of the Dunjugur ophiolite complex served as sourcelands for the studied deposits. The terrigenous deposits of the Oka Group and Haisuin Formation and the pararocks of the Shutkhulai block accumulated in the same...
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Journal Article
Published: 01 July 2011
Russ. Geol. Geophys. (2011) 52 (7): 685–700.
... zircon dating (SHRIMP) of the Sarkhoi volcanics yielded the Neoproterozoic age of the ignimbrites (782 ± 11 Ma, concordant cluster N = 8). The tonalite-trondhjemites of the Sumsunur complex in the Gargan block are plutonic analogs of these volcanic rocks. Coeval granitoids were also revealed in other...
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Northern Tuva–Mongolian microcontinent (supplemented after A.B. Kuz’ michev...
Published: 01 December 2013
Fig. 4. Northern Tuva–Mongolian microcontinent (supplemented after A.B. Kuz’ michev (2004) ). 1 , basement of the Gargan block; 2 , 3 , cover of the Gargan block: 2 , light-colored quartzites of the Irkut Formation; 3 , Irkut and Urtagol Formations; 4 , undivided ophiolites; 5 , granitoids
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Schematic geological map of the northern Tuva–Mongolian massif.  1 , schist...
Published: 01 January 2013
Fig. 1. Schematic geological map of the northern Tuva–Mongolian massif. 1 , schists of the Gargan block; 2, Neoproterozoic cover of the Gargan block; 3 , Dunzhugur island arc (mainly basement rocks); 4 , sedimentary complexes associated with the Dunzhugur arc; 5 , volcanic and sedimentary
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Sketch geologic map of the Southwestern Cisbaikalia, modified after  Belich...
Published: 01 October 2013
, ophiolites ( a ), turbidites ( b ), 9 , Riphean cover carbonates of the Gargan block, 10 , Early Precambrian metamorphic rocks of the Gargan block; 11 , Tunka terrane; 12 , Khamar-Daban terrane; 13 , Kitoi zone; 14 , Siberian platform basement (Sharyzhalgai scarp); 15 , tectonic nappe boundaries; 16
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Geological sketch map of southwestern Cisbaikalia, simplified and modified ...
Published: 01 December 2011
(Hugeyn Group); 8 , ophiolites ( a ), turbidites ( b ); 9 , carbonate sediments of the Riphean cover of the Gargan block; 10 , Early Precambrian metamorphic rocks of the Gargan block; 11 , Tunka terrane; 12 , Khamar-Daban terrane; 13 , Kitoi-Kin zone; 14 , basement of the Siberian Platform
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Average compositions of the tonalites ( 1 ,  2 ) and trondhjemites ( 3 – 5 ...
Published: 01 December 2013
Fig. 3. Average compositions of the tonalites ( 1 , 2 ) and trondhjemites ( 3 – 5 ) from the Gargan block, after I.V. Levitskii (oral presentation) ( a ); average compositions of the plagiogranite-gneisses ( 6 – 8 ) from the Chuya uplift (Makrygina, 1981 ) ( b ). Gray line shows the average
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Spectral zonal space image of southeastern East Sayan. A fault shear zone o...
Published: 01 January 2006
complex (Kharanur plate) and the northern part of the Gargan block (microcontinent) and branches in its southeastern part (Samarta-Ambartagol watershed).
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Sketch map of the studied sections of carbonate sediments in the Tuva-Mongo...
Published: 01 June 2013
Fig. 1. Sketch map of the studied sections of carbonate sediments in the Tuva-Mongolian microcontinent (tectonic structure, simplified after ( Kuz’michev, 2004 )). 1 , crystalline rocks of the Late Archean Gargan block; 2 , pre-Vendian basement; 3 , carbonate sediments of the Vendian–Cambrian
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Schematic geologic structure of the Tuva–Mongolian massif, compiled after  ...
Published: 01 December 2011
Archean Gargan block. Rectangles mark the study areas.
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Location of key sections of Neoproterozoic deposits in the structure of the...
Published: 01 March 2004
Fig. 1. Location of key sections of Neoproterozoic deposits in the structure of the Altai-Sayan Folded Area (after [ 66 ]; simplified). 1 — Siberian Platform; 2 — microcontinents and their blocks: D — Derba, K-A — Kan-Arzybei, Sh — Shutkhulai, G — Gargan, Kh — Khamar-Daban, S — Sangilen, K
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Central Asian belt.  A  — Scheme of distribution of microcontinents with Ri...
Published: 01 January 2003
, 5 — Hercynian, 6 — Kimmerian, 7 — tectonic borders of blocks. Microcontinents : I — Barguzin-Vitim including Gargan block (Ia), II — Tuva, III — Mongolian Altai, IV — Hangayn (Central Mongolian) and Baidarik block (IVa), V — North-Kerulen, VI — Central Gobi, VII — Ulanul. B — Histograms
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a , Simplified geological map of the Tuva–Mongolian massif (TMM) and the Tu...
Published: 01 August 2022
of the Gargan block; 6 , Munku-Sardyk massif; 7 , tonalites of the Sumsunur Complex; 8 , Tunka terrane; 9 , Khamar-Daban terrane; 10, Tunka valley. b , Detailed geological map of the southeastern part of East Sayan, after Rudenko ( 2009 , 2011 ) (sheets M-47, M-48, N-47, and N-48, supplemented). 1
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Schematic geologotectonic map of the southeastern East Sayans.  1  — crysta...
Published: 01 May 2004
Fig. 1. Schematic geologotectonic map of the southeastern East Sayans. 1 — crystalline rocks of the Gargan block ( a — gneisses and diaphthorites, b — amphibolites and gneisses); 2 — plagiogranites and plagiogranite-gneisses (R?); 3 — carbonate rocks of the Mongosha Formation (R?); 4
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Geological map of the Bural-Sardyk quartzite deposit (from data by E.I. Vor...
Published: 01 October 2020
and silt–clayey (sericite) shales; 8 , carbonaceous–sericite–siliceous shales; 9 , limestones, dolomites, and marbles; 10 , skarns and skarn-type rocks; 11 , siliceous carbonates; metamorphosed undifferentiated assemblage of basement rocks, Gargan block: 12 , gneisses, gneiss-granites, Sumsunur
Journal Article
Published: 01 January 2021
Russ. Geol. Geophys. (2021) 62 (1): 109–120.
... the south, and the Oka structural and formational zone does from the north ( Fig. 1 ). The tectonic structure of the Il’chir and Oka zones can be interpreted as the former synclinorial structures (synforms), separated by fragments of the Gargan–Butugol autochthon, which include, along with the Gargan blocks...
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Geologic structure of the Ospa–Kitoi massif, supplemented after ( Glazunov,...
Published: 01 February 2014
, predicted; b : 1 , gneisses and diaphthorites of the Gargan block; 2 , Mongosha Formation (NP 2 ) carbonates; 3 , ultrabasites with mélange; 4 , undivided gabbro and ophiolite pyroxenites; 5 , Il’chir Formation with olistostrome horizons; 6 , island-arc volcano-sedimentary rocks (Ospa Formation); 7
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Histograms and cumulative U–Pb age probability plots for detrital zircons f...
Published: 01 October 2013
and Pokrovka Villages (new data obtained at Ghent University, Belgium); 8 , southern Siberia (craton basement) ( Rojas-Agramonte et al., 2011 ); 9 , Mongolia ( Rojas-Agramonte et al., 2011 ); 10 , East Sayan (Gargan block of Tuva–Mongolia microcontinent) (Kuzmichev and Larionov, 2012, 2013 ); 11 , Tuva
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Geological framework of Dzhida–Khamar-Daban zone.  1 . Cenozoic deposits of...
Published: 01 March 2009
of dismembered ophiolite). 12 . Vendian–Early Paleozoic carbonate cover of Tuva–Mongolia microcontinent. 13 . Gargan block (Early Precambrian). 14 . Siberian craton. 15 . Thrusts. 16 . Normal faults. 17 . Faults of uncertain geometry. 18. Grade contour lines of Ordovician metamorphism: garnet (I