Late Mesozoic volcanism of the eastern part of the Argun superterrane (Far East): Geochemistry and 40Ar/39Ar geochronology

Сорокин, А. А.; Пономарчук, В. А.; Травин, А. В.; Melnikova, O. V.

doi:10.1134/s0869593809060069

Cited by 20 publications

(4 citation statements)

References 12 publications

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“…8, demonstrating that basaltoids of rift zones and marginal belts of active margins produce separated combination of figurative. Their differences are caused by (Andryuschenko et al, 2010;Kazimirovsky, 1996;Sasim, 2014;Sorokin et al, 2004Sorokin et al, , 2009Sorokin et al, , 2010Vorontsov et al, 2002;Yarmolyuk et al, 1998). geochemical specialization of some rock complexes discussed above and relative enrichment of rift-related basaltoids with Ti, Nb, Zr and depletion in Rb, Th, and U.…”

Section: ) Marking the Early Mesozoic Active Margin Of The Amur Mmentioning

confidence: 94%

“…When compared with the rocks produced in the settings of active margins of Mongol-Okhtosk basin (Middle Jurassic Shadoron Group of Argun block) and Pacific Ocean (differentiated and bimodal series of Umlekan-Ogodzha belt (Sorokin, 2009)), the rocks of Uda sector, like entire WTRZ, have higher abundances of incompatible elements, more fractionated distribution of REE ((La/Yb)n = 27-42 and ≈ 17, accordingly), and lower U, Th and Rb abundances (Fig. 7).…”

Section: ) Marking the Early Mesozoic Active Margin Of The Amur Mmentioning

confidence: 98%

“…Besides, we used the data on the rocks of the Shadoron complex derived within the Argun block primarily in Middle Jurassic (175-161 Ma) ( (Sasim, 2014) and unpublished data by F.M. Stupak), rocks of Galkinsky bimodal complex (Sorokin et al, 2013) and Umlekan-Ogodzha belt (Sorokin et al, 2009, (Kazimirovsky, 1996;Sasim, 2014;Sorokin et al, 2004Sorokin et al, , 2009Sorokin et al, , 2010Vorontsov et al, 2002).…”

Section: Discussinonmentioning

confidence: 99%

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Late Mesozoic–Early Cenozoic rifting magmatism in the Uda sector of Western Transbaikalia

Воронцов

Yarmolyuk

Komaritsyna

2016

Russian Geology and Geophysics

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Magmatism of the Uda sector enclosed within the West Transbaikalian rift zone (WTRZ) is discussed in this paper. Seven stages of the Late Mesozoic-Cenozoic volcanism have been recognized within span 174-51 Ma. On the border about 135 Ma the nature of volcanism changed noticeably: (a) the volume of volcanic rocks essentially reduced; (b) transition from differentiated to basaltic associations proceeded with the disappearance of volcanics containing SiO 2 over 54 wt.%; (c) alkali and subalkaline basaltoids appeared in the associations, their volume increasing at later stages. Geochemical features of the Uda volcanics are determined by participation in their formation of the mantle source close in composition to the source with OIB parameters. They are responsible for high concentrations of incompatible elements in magmatic products. The isotope characteristics of rocks indicate conformity of this mantle source to the varying behavior of EMII and PREMA with the role of the latter strengthening in time. The basaltoids of initial stages show the deficit of Ti, Nb, and Ta caused by involvement of water-saturated lithosphere mantle in magma formation. The main specifics of the Uda volcanics composition and the pattern of their variability in time correspond to those in WTRZ, as well as in the other Late Mesozoic-Cenozoic rift zones of Central Asia. This evidence suggests similar geodynamic settings for origination and development of rifting processes, when continuously evolving mantle plume affects the regional lithosphere. The magmatism of the Uda sector, as in the entire WTRZ, differs considerably from magmatic processes developing over the convergent boundaries of the Mongol-Okhotsk belt; their products are represented by differentiated magmatic associations with geochemical properties common for the rocks of suprasubduction zones.

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Section: ) Marking the Early Mesozoic Active Margin Of The Amur Mmentioning

confidence: 94%

Section: ) Marking the Early Mesozoic Active Margin Of The Amur Mmentioning

confidence: 98%

Section: Discussinonmentioning

confidence: 99%

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Late Mesozoic–Early Cenozoic rifting magmatism in the Uda sector of Western Transbaikalia

Воронцов

Yarmolyuk

Komaritsyna

2016

Russian Geology and Geophysics

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“…Most of them are the reactivation of previous orogenic belts in the late Mesozoic (Dong et al, 2008a(Dong et al, , 2013b. The influence of the Yanshanian orogeny can also be found in the Tianshan Mountains (Dumitru et al, 2001;Robinson et al, 2003), Mongolia (Tomurtogoo et al, 2005), the Korean Peninsula (Lim and Cho, 2011), Japan (Osozawa et al, 2012), and the Russian Far East (Sorokin et al, 2009).…”

Section: Intracontinental Yanshanian Orogeny In East Asiamentioning

confidence: 99%

Construction of the Continental Asia in Phanerozoic: A Review

Chen

Dong

Shi

et al. 2022

Acta Geologica Sinica (Eng)

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This is a review of the formation and tectonic evolution of the continental Asia in Phanerozoic. The continental Asia has formed on the bases of some pre‐Cambrian cratons, such as the Siberia, India, Arabia, North China, Tarim, South China, and Indochina, through multi‐stage plate convergence and collisional collages in Phanerozoic. The north‐central Asia had experienced the expansion and subduction of the Paleo‐Asian Ocean (PAO) in the early Paleozoic and the closure of the PAO in the late Paleozoic and early Mesozoic, forming the PAO regime and Central Asian orogenic belt (CAOB). In the core of the CAOB, the Mongol‐Okhotsk Ocean (MOO) opened with limited expansion in the Early Permian and finally closed in the Late Jurassic–Early Cretaceous. The south‐central Asia had experienced mainly multi‐stage oceanic opening, subduction and collision evolution in the Tethys Ocean, forming the Tethys regime and Himalaya‐Tibetan orogenic belt. In eastern Asia, the plate subduction and continental margin orogeny on western margin of the Pacific Ocean, forms the West Pacific regime and West Pacific orogenic belt. The PAO, Tethys, and West Pacific regimes, together with Precambrian cratons among or surrounding them, made up the major tectonic and dynamic systems of the continental Asia in Phanerozoic. Major tectonic events, such as the Early Paleozoic Qilian, Uralian, and Dunhuang orogeneses, the late Paleozoic East Junggar, Tianshan and West Junggar orogeneses, the Middle to Late Permian Ailaoshan orogeny and North‐South Lhasa collision, the early Mesozoic Indochina‐South China and North‐South China collisions, the late Mesozoic Mongolia‐Okhotsk orogeny, Lhasa‐Qiangtang collision, and intra‐continental Yanshanian orogeny, and the Cenozoic Indo‐Asian, Arab‐Asian, and West Pacific margin collisions, constrained the formation and evolution of the continental Asia. The complex dynamic systems have left large number of deformation features, such as large‐scale strike‐slip faults, thrust‐fold systems and extensional detachments on the continental Asia. Based on past tectonics, a future supercontinent, the Ameurasia, is prospected for the development of the Asia in ca. 250 Myr.

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Late Paleozoic paleomagnetism of South Mongolia: Exploring relationships between Siberia, Mongolia and North China

et al. 2016

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Late Mesozoic volcanism of the eastern part of the Argun superterrane (Far East): Geochemistry and 40Ar/39Ar geochronology

Cited by 20 publications

References 12 publications

Late Mesozoic–Early Cenozoic rifting magmatism in the Uda sector of Western Transbaikalia

Late Mesozoic–Early Cenozoic rifting magmatism in the Uda sector of Western Transbaikalia

Construction of the Continental Asia in Phanerozoic: A Review

Late Paleozoic paleomagnetism of South Mongolia: Exploring relationships between Siberia, Mongolia and North China

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