U–Pb–Hf zircon study of two mylonitic granite complexes in the Talas-Fergana fault zone, Kyrgyzstan, and Ar–Ar age of deformations along the fault

Konopelko, Dmitry; Seltmann, Reimar; Apayarov, F.; Белоусова, Е. А.; Изох, А. Э.; Lepekhina, E. N.

doi:10.1016/j.jseaes.2013.04.046

Cited by 55 publications

(34 citation statements)

References 47 publications

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“…Sinistral strikeslip motion along the ENE-striking STS suture is thought to be contemporaneous with dextral strikeslip movement along the NW-SE-trending Talas Fergana Fault (Alexeiev et al 2007). The Talas Fergana Fault was activated during collision at 312 Ma, but was reactived in the Permian and during Late Triassic -Early Jurassic times (Sobel 1999;Konopelko et al 2013;Rolland et al 2013). During the early Permian phase of transcurrent deformation, the Tarim Basin experienced a strong subsidence (Carroll et al 1995).…”

Section: Tectonic History Of the Stsmentioning

confidence: 99%

Crustal-scale structure of South Tien Shan: implications for subduction polarity and Cenozoic reactivation

Loury

Rolland

Guillot

et al. 2015

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Based on new structural and petrological investigations, we present two crustal-scale cross-sections of the Kyrgyz South Tien Shan, and correlations of main faults and units between Kyrgyzstan and China. The overall structure corresponds to a doubly-vergent mountain belt. The Kyrgyz and Chinese areas exhibit identical structural and metamorphic histories. To the west, the Atbashi Range comprises high-pressure oceanic and continental units stacked by north-verging thrusts above a low metamorphic accretionary prism. High-pressure (HP) gneisses are bound to their south by a south-dipping detachment exhibiting mantle relicts. The high-pressure oceanic and continental units underwent similar pressure-temperature (P -T ) paths with peak conditions of around 500 8C-20 kbar, followed by rapid exhumation. The overall south-dipping structure and kinematics indicate a south-dipping subduction of the Central Tien Shan Ocean at 320-310 Ma, ending with the docking of the Tarim block to the Kazakh continent. To the east, the Pobeda Massif shows a narrow push-up structure. A major north-vergent thrust exhumes deep-crustal-level granulites, constituting the highest summits, which were thrust towards the north onto low-grade Devonian-Carboniferous schists. The southern part of South Tien Shan is made up of a south-verging thrust stack that formed later during ongoing convergence, reactivated throughout post-30 Ma phases. Downloaded from Fig. 2. (a) Satellite image of Tien Shan belt showing study areas. (Insert) Geographical situation of Tien Shan in Central Asia (Map data: Google, Image Landsat). (b) Tectonic map of Tien Shan (Cenozoic cover removed). The location of detailed maps and the geological crustal-scale cross-sections are shown. Abbreviations used: TFF, Talas-Fergana Fault; NL, Nikolaev Line; STS, South Tien Shan (kSTS + cSTS + cCTS); NTS, North Tien Shan (kNTS + cNTS).

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Section: Tectonic History Of the Stsmentioning

confidence: 99%

Crustal-scale structure of South Tien Shan: implications for subduction polarity and Cenozoic reactivation

Loury

Rolland

Guillot

et al. 2015

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“…Gneissic granites with (He et al, 2015;Jiang et al, 2013;Ye et al, 2013); Central Tianshan Arc Terrane (CTA) (Gao et al, 2015;He et al, 2014b;Huang et al, 2014a,b;Konopelko et al, 2013;Lei et al, 2013;Wang et al, 2014a,b), Dunhuang Block Zhao et al, 2015;Zong et al, 2013;Long et al, 2014), and Tarim Craton (Ge et al, 2013b;Long et al, 2010Long et al, , 2011Zhang et al, 2012a) are also shown for comparison.…”

Section: Timing and Geological Characteristics Of The Former Precambrmentioning

confidence: 99%

“…Central Tianshan Arc Terrane (CTA) (Gao et al, 2015;He et al, 2014b;Huang et al, 2014a;Hu et al, 2006Hu et al, , 2010Chen et al, 2009;Lei et al, 2013;Konopelko et al, 2013;Wang et al, 2014a,b) (b, f). Dunhuang Block Zhao et al, 2015;Zong et al, 2013, Long et al, 2014.…”

Section: The Precambrian Tectonic Affinity Of the Sbobmentioning

confidence: 99%

Geochemical and geochronological evidence for a former early Neoproterozoic microcontinent in the South Beishan Orogenic Belt, southernmost Central Asian Orogenic Belt

Yuan

Zong

et al. 2015

Precambrian Research

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“…Uplifts, folding and cessation of marine sedimentation in the Southand Middle Tien Shan in the late Asselian, followed by the emplacement of granite plutons during 300 -275 Ma, reflect a main collisional stage in the early Permian Seltmann et al 2011). Shortening accompanied by strike-slip motions continued during the Permian and early Mesozoic (Burtman 1964;Porshnyakov 1983;Bazhenov et al 1999;Alexeiev et al 2009;Charvet et al 2011;Konopelko et al 2013;Rolland et al 2013). …”

Section: Regional Tectonic Features and Stratigraphic Frameworkmentioning

confidence: 99%

The stratigraphic, sedimentological and structural evolution of the southern margin of the Kazakhstan continent in the Tien Shan Range during the Devonian to Permian

Алексеев

Cook

Djenchuraeva³

et al. 2015

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The passive margin carbonate platform in the Middle Tien Shan rests on Givetian-Frasnian red siliciclastic strata. It evolved from an attached carbonate platform in the Famennian and early Tournaisian to an isolated carbonate platform in the late Tournaisian to early Bashkirian. The open-ocean side of the platform was reef-rimmed, whereas the continental side was both reefand shoal-rimmed. Platform interiors exhibit low-energy facies during the Famennian to early Visean and high-energy facies during the late Visean to Bashkirian. Eustatic sea-level rises in the middle Tournaisian, early Visean and near the Visean and Serpukhovian boundary caused major reorganizations in platform architecture.Deformation in the middle Bashkirian reflects the onset of a convergent margin. Flexural loading by an orogenic thrust wedge controlled basin subsidence along the southern edge of the Middle Tien Shan in the Late Pennsylvanian to Asselian. Cessation of deposition in the Asselian followed by folding and granitoid plutonism reflects the onset of a rigid collision.Devonian to Permian carbonates represent outcrop analogues of coeval oil-and gas-rich carbonate platforms in the North Caspian basin and can be used for comparative and predictive sedimentological studies. Palaeozoic carbonate reservoir facies may host subsurface Cenozoic oil fields in the Fergana Basin.

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U–Pb–Hf zircon study of two mylonitic granite complexes in the Talas-Fergana fault zone, Kyrgyzstan, and Ar–Ar age of deformations along the fault

Cited by 55 publications

References 47 publications

Crustal-scale structure of South Tien Shan: implications for subduction polarity and Cenozoic reactivation

Crustal-scale structure of South Tien Shan: implications for subduction polarity and Cenozoic reactivation

Geochemical and geochronological evidence for a former early Neoproterozoic microcontinent in the South Beishan Orogenic Belt, southernmost Central Asian Orogenic Belt

The stratigraphic, sedimentological and structural evolution of the southern margin of the Kazakhstan continent in the Tien Shan Range during the Devonian to Permian

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