Geochronology, petrogenesis, and tectonic setting of Mesozoic volcanic rocks, southern Manzhouli area, Inner Mongolia

Gou, Jun; Dong, Sun; Liu, Yongjiang; Ren, Yunsheng; Zhao, Z.; Liu, Xiaoming

doi:10.1080/00206814.2013.771949

Cited by 53 publications

(36 citation statements)

References 65 publications

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“…Numerous studies have examined the late Mesozoic volcanic rocks of the Great Xing'an Range over the past decade (Zhao et al 1989;Ge et al 1999Ge et al , 2000Ge et al , 2001Guo et al 2001;Fan et al 2003;Wang et al 2006;Xu et al 2008Xu et al , 2013aZhang et al 2008aZhang et al , 2010, and these studies have reported the geological and geochronological data, and established a relatively systematic geochronological framework for late Mesozoic volcanic rocks in the region, which has improved our understanding of the geodynamic setting. However, the petrogenesis of these late Mesozoic volcanic rocks and the processes that caused the magmatism in this area remain controversial, and various tectonic models have been proposed for the large-scale late Mesozoic volcanism in the Great Xing'an Range, including (1) a mantle plume model (Lin et al 1998Ge et al 1999Ge et al , 2000Deng et al 2004), (2) post-orogenic gravitational collapse and subsequent extension related to closure of the MongolOkhotsk Ocean (Guo et al 2001;Fan et al 2003;Meng et al 2003;Zhang et al 2007;Gou et al 2010Gou et al , 2013Ying et al 2010;Wang et al 2013), and (3) lithospheric delamination and consequent upwelling of asthenospheric material as a result of subduction of the Palaeo-Pacific Plate beneath the eastern Asian continent (Wang et al 2006;Zhang et al 2008aZhang et al , 2010Dong et al 2014).…”

Section: Introductionmentioning

confidence: 98%

Petrogenesis of Early Cretaceous volcanic rocks of the Manketouebo Formation in the Wuchagou region, central Great Xing’an Range, NE China, and tectonic implications: geochronological, geochemical, and Hf isotopic evidence

Wang

et al. 2015

International Geology Review

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This study presents new whole-rock major and trace element geochemistry, zircon U-Pb ages, and Hf-isotope compositions for volcanic rocks from the Manketouebo Formation of the central Great Xing'an Range, NE China. These data provide precise ages and information on the petrogenesis and source of the magmas that formed this formation, furthering our understanding of the geodynamic setting of the large-scale late Mesozoic magmatism in the Great Xing'an Range and other areas in NE China. The Manketouebo Formation in the study area is dominated by rhyolites and rhyolitic tuffs with minor trachydacites. The LA-ICP-MS zircon U-Pb dating indicates that these volcanic rocks formed between 143 and 139 Ma. The volcanic rocks contain high silica (66.70-79.91 wt.%) and total alkali (5.93-9.72 wt.%) concentrations, and low concentrations of MgO (0.08-1.15 wt.%), total FeO (0.68-4.50 wt.%), and CaO (0.10-2.56 wt.%). They are enriched in large-ion lithophile elements (LILEs; e.g. Rb, Th, and U) and light rare earth elements (LREEs), and depleted in high field strength elements (HFSEs; e.g. Nb, Ta, Ti, and P) and heavy rare earth elements (HREEs), indicating that they are similar to highly fractionated I-type igneous rocks. All of the magmatic zircons from the analysed samples have high initial 176 Hf/ 177 Hf ratios (0.282900-0.283093), positive ε Hf (t) values (7.48-14.19), and young Hf two-stage model ages (954-344 Ma) that suggest the primary magma that formed the volcanic rocks of the Manketouebo Formation was derived from the partial melting of Neoproterozoic to Phanerozoic juvenile crustal material, indicating in turn that significant crustal growth occurred at this time within the Xing'an Terrane. These data, combined with previous research into the spatial-temporal distribution of Mesozoic volcanic rocks in NE China, suggest that the Early Cretaceous magmatism in the Great Xing'an Range was influenced by both the subduction of the Palaeo-Pacific Plate and the closure of the Mongol-Okhotsk Ocean. This was a crucial period in the transformation from the Mongol-Okhotsk Ocean to the Palaeo-Pacific tectonic regimes. In summary, the early stages of Early Cretaceous magmatism in this area were related to the closure of the Mongol-Okhotsk Ocean, whereas the later stages of magmatism in this area and elsewhere in NE China were related to the subduction of the Palaeo-Pacific Plate. ARTICLE HISTORY

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Section: Introductionmentioning

confidence: 98%

Petrogenesis of Early Cretaceous volcanic rocks of the Manketouebo Formation in the Wuchagou region, central Great Xing’an Range, NE China, and tectonic implications: geochronological, geochemical, and Hf isotopic evidence

Wang

et al. 2015

International Geology Review

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“…In addition, a number of previous studies indicate that basaltic magmas derived from the asthenospheric mantle commonly have lower LREE/HFSE ratios than basaltic magmas that were derived from enriched lithospheric mantle sources (Gou et al . ; Fitton et al ., ). Basaltic samples from the Ganhe Formation in the study area have relatively high La/Nb (2.09–3.18) and La/Ta (21.29–51.92), suggesting derivation from an enriched lithospheric mantle source (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…; Gou et al . ). The main reason for the above conflict is that the exact eruption ages of the volcanic rocks are unknown and their spatial distribution has not been determined yet (Zhang et al .…”

Section: Introductionmentioning

confidence: 97%

Petrogenesis and geodynamic significance of the Ganhe Formation lavas, eastern Great Xing'an Range, China: Evidence from geochemistry and geochronology

Sun

Bai

et al. 2016

Island Arc

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Mesozoic volcanic rocks are widespread throughout the Great Xing'an Range of northeastern China. However, there has been limited investigation into the age and petrogenesis of the Mesozoic volcanics in the eastern Great Xing'an Range. According to our research, the volcanic rocks of the Dayangshu Basin, eastern Great Xing'an Range are composed mainly of trachybasalt, basaltic andesite, and basaltic trachyandesite, with minor intermediate-basic pyroclastic rocks. In this study, the geochemistry and geochronology of the Mesozoic volcanic rocks are presented in order to discuss the petrogenesis and tectonic setting of the Ganhe Formation in the Dayangshu Basin. Zircon U-Pb dating by laser ablation inductively coupled plasma-mass spectrometry indicates that the Mesozoic lavas formed during the late Early Cretaceous (114.3-108.8 Ma). This suite of rocks exhibits a range of geochemical signatures indicating subduction-related genesis, including: (i) calcalkaline to high-K calc-alkaline major element compositions; (ii) enrichment of large ion lithophile elements (e.g. Rb, Ba, K) and light rare earth elements (LREEs/HREEs =7.33-9.85); and (iii) weak depletion in high field strength elements (e.g. Nb, Ta, Ti). Furthermore, Sr-Nd-Pb isotopic data yield initial 87 Sr/ 86 Sr values of 0.70450-0.70463, positive ε Nd (t) values of +1.8 to +3.3, and a mantle-derived lead isotope composition. Combined with the regional tectonic evolution, the results of this study suggest that the Ganhe Group lavas are derived from decompression melting of a metasomatized (enriched) lithospheric mantle, related to asthenospheric upwelling, which resulted from lithospheric mantle delamination and produced extension of the continental margin following the subduction of the Paleo-Pacific Plate.

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“…(a) Diagram of ε Hf (t) versus U–Pb age and (b) histogram of emplacement ages of mafic rocks, zircon Hf model ages, and xenocrystic and detrital zircon ages in the Erguna block. Neoarchean–Paleoproterozoic data from Sun, Ren, et al () and Shao et al (); Neoproterozoic data from Sun, Ren, et al (); Cambrian–Ordovician data from Ge et al () and Zhao et al (); Late Triassic–Early Jurassic data from Sun, Gou, et al (), Tang et al (), and Gou et al (); Late Jurassic–Early Cretaceous data from Fan et al (), Wang et al (), Zhang et al (), Ying et al (), Meng et al (), Xu et al (), and Sun, Gou, et al () [Colour figure can be viewed at wileyonlinelibrary.com]…”

Section: Discussionmentioning

confidence: 99%

Geochronology, geochemistry, and zircon Hf isotopes of the late Permian–early Triassic Wuma intrusions in the Erguna Block, northeast China: Petrogenesis and implications for tectonic setting and crustal growth

et al. 2017

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The Wuma magmatic suite is a group of large granite plutons and small diorite stocks in the Erguna Block, northeast China. These intrusions were emplaced along the Mongol–Okhotsk Suture Zone during the late Permian–early Triassic (253–248 Ma). Significant chemical and isotopic diversity within the granites and diorites suggests variable formation conditions and the involvement of multiple magmatic sources. The granitic intrusions are dominantly characterized by moderate to large, uniform light rare earth element enrichments and variable heavy rare earth element depletions. Zircons from the Wuma granites have εHf(t) values of −6.0 to 0.5 and TDM2 ages of 1.6–1.2 Ga, suggesting that these granitic magmas were generated by partial melting of Mesoproterozoic continental crust. The diorites are compositionally similar to Andean plutonic rocks with moderate light rare earth element and heavy rare earth element fractionations and likely formed by partial melting of a sediment‐metasomatized mantle. The Wuma intrusions belong to the high‐K calc‐alkaline series and are characterized by a significant enrichment in large‐ion lithophile elements (e.g., Rb, Ba, K, and U) and depletion of high‐field strength elements (e.g., Nb, Ta, and Ti). These geochemical characteristics are typical of subduction‐related magmatism, which can be linked to the southward subduction of the Mongol–Okhotsk oceanic plate. Combined with data from published studies, our Hf isotopic analyses indicate 4 main periods of crustal growth beneath the Erguna Block: Mesoarchean (3.0–2.8 Ga), Neoarchean–Paleoproterozoic (2.6–1.8 Ga), Meso‐ to Neoproterozoic (1.6–0.7 Ga), and Phanerozoic (mainly Ordovician and Late Triassic–Early Cretaceous).

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Geochronology, petrogenesis, and tectonic setting of Mesozoic volcanic rocks, southern Manzhouli area, Inner Mongolia

Cited by 53 publications

References 65 publications

Petrogenesis of Early Cretaceous volcanic rocks of the Manketouebo Formation in the Wuchagou region, central Great Xing’an Range, NE China, and tectonic implications: geochronological, geochemical, and Hf isotopic evidence

Petrogenesis of Early Cretaceous volcanic rocks of the Manketouebo Formation in the Wuchagou region, central Great Xing’an Range, NE China, and tectonic implications: geochronological, geochemical, and Hf isotopic evidence

Petrogenesis and geodynamic significance of the Ganhe Formation lavas, eastern Great Xing'an Range, China: Evidence from geochemistry and geochronology

Geochronology, geochemistry, and zircon Hf isotopes of the late Permian–early Triassic Wuma intrusions in the Erguna Block, northeast China: Petrogenesis and implications for tectonic setting and crustal growth

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