Underthrusting of Tarim beneath the Tien Shan and deep structure of their junction zone: Main results of seismic experiment along MANAS Profile Kashgar-Song-Köl

Makarov, Vladimir I.; Алексеев, Д. В.; Batalev, V. Yu.; Баталева, Е. А.; Belyaev, I. V.; Брагин, В. И.; Dergunov, N.T.; Ефимова, Н. Н.; Leonov, M. G.; Munirova, L.; Pavlenkin, A. D.; Roecker, S. W.; Roslov, Y.V.; Рыбин, А. В.; Shchelochkov, G. G.

doi:10.1134/s0016852110020020

Cited by 95 publications

(61 citation statements)

References 17 publications

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“…In the original interpretation, some south-verging reflectors are neglected in the northern half of the profile (see fig. 10 in Makarov et al 2010). In this new cross-section, we follow the original interpretation made by these authors for the southern part of the kSTS: that is, where the Tarim block is cross-cut by several active southverging thrusts uplifting the Upper Protezoic-Palaeozoic sedimentary series of the STS (Fig.…”

Section: Discussionmentioning

confidence: 71%

“…Based on these data and new geological mapping, we propose a reinterpretation of the MANAS seismic profile (Makarov et al 2010) along the Atbashi Range (Fig. 13a).…”

Section: Discussionmentioning

confidence: 99%

“…Windley et al 1990;Allen et al 1992;Biske 1996;Gao & Klemd 2003;Xiao 2004;Zhang et al 2007;Makarov et al 2010;Hegner et al 2010;Han et al 2011) or south-directed (e.g. Charvet et al 2007Charvet et al , 2011Wang et al 2008;Lin et al 2009;Ma et al 2014).…”

Section: Subduction Polaritymentioning

confidence: 99%

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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: Discussionmentioning

confidence: 71%

“…Based on these data and new geological mapping, we propose a reinterpretation of the MANAS seismic profile (Makarov et al 2010) along the Atbashi Range (Fig. 13a).…”

Section: Discussionmentioning

confidence: 99%

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

Loury

Rolland

Guillot

et al. 2015

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“…Wang et al, 2008;Charvet et al, 2011;Loury et al, 2015) or north-directed (e.g. Windley et al, 1990;Biske, 1996;Makarov et al, 2010). Another model, with two antithetic subductions under the Kazakhstan microcontinent and under the Tarim, is also proposed (Ge et al, 2012;Alexeiev et al, 2015a,b;Jourdon et al, this volume).…”

Section: General Frameworkmentioning

confidence: 90%

Late Paleozoic evolution of the South Tien Shan: Insights from P–T estimates and allanite geochronology on retrogressed eclogites (Chatkal range, Kyrgyzstan)

Loury

Rolland

Cenki-Tok

et al. 2016

Journal of Geodynamics

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“…Two low resistivity zones were distin guished; one of them was identified as a paleosubduc tion zone extending north of the Naryn basin beneath the Kyrgyz Range, and the other, as a collision struc ture above the lithosphere of the Tarim block (such structures are traced over 200 km south of the Naryn basin). The data of the MANAS seismic experiment (Makarov et al, 2010;Gao et al, 2013) were inter preted in terms of Tarim plate underthrusting beneath the Tian Shan. The whole crust and the upper part of the lithospheric mantle were involved in movements.…”

Section: Manifestation Of the Lateral Change Of Magma Sources In The mentioning

confidence: 99%

Lateral change of sources for the Cretaceous-Paleogene magmatism of the Tian Shan

Rasskazov

Chuvashova

Mikolaichuk³

et al. 2015

Petrology

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The Southern and Northern-Central Tian Shan are sharply different in the character of the evo lution of Cretaceous-Paleogene magmatism. The Southern Tian Shan comprises a picrobasalt-trachyba salt-basanite-phonotephrite-phonolite volcanic series, which was formed over a considerable time interval from 122 to 46 Ma, whereas the Northern-Central Tian Shan hosts a foidite-basanite-trachybasalt-basaltbasaltic andesite volcanic association, which erupted within a rather narrow time interval between 61 and 53 Ma. The entire volcanic series of the former region was derived from a shallow garnet free mantle source. The volcanic assemblage of the latter region included basanites and foidites derived from a deep garnet bear ing mantle source, whereas trachybasalt, basalt, and basaltic andesite melts were generated in the lower crust. It is supposed that the change of sources and different evolutionary trends of Cretaceous-Paleogene magma tism in the Southern and Northern-Central Tian Shan were caused by the activation of the heterogeneous lithosphere beneath the converging shores of the Late Paleozoic Turkestan paleoocean.

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Underthrusting of Tarim beneath the Tien Shan and deep structure of their junction zone: Main results of seismic experiment along MANAS Profile Kashgar-Song-Köl

Cited by 95 publications

References 17 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

Late Paleozoic evolution of the South Tien Shan: Insights from P–T estimates and allanite geochronology on retrogressed eclogites (Chatkal range, Kyrgyzstan)

Lateral change of sources for the Cretaceous-Paleogene magmatism of the Tian Shan

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