SHRIMP U-Pb zircon geochronology and Hf isotope analyses of Middle Permian–early triassic intrusions in southern Manzhouli area, Northeast China: implications for the subduction of Mongol-Okhotsk plate beneath the Erguna massif

Mi, Kuifeng; Lü, Zhicheng; Yan, Tizhen; Zhao, Shichao; Haiyang, Yu

doi:10.1080/00206814.2019.1622458

Cited by 14 publications

(4 citation statements)

References 66 publications

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“…During a subduction stage in the early Triassic to early Jurassic, the Hadataolegai (T 1 h) and Chaihe (J 1 c) formations (Fm./fms) developed in the study area, and, moreover, many contemporaneous granites developed (Chen et al, 2010;She et al, 2012;Wang et al, 2012;Tang et al, 2015Tang et al, , 2016Mi et al, 2020;Li et al, 2021). The formation of porphyry copper and molybdenum deposits, such as Badaguan (Mi et al, 2018) and Wunugetushan (Chen et al, 2011), in the Early Triassic to Early Jurassic also indicates subduction at this stage.…”

Section: Geological Backgroundmentioning

confidence: 90%

Geochronology, Eruption Sequence and Geochemistry of Mid–Late Jurassic Volcanics South of Manzhouli: Petrogenesis and Implications for Mesozoic Tectonic Regime Transformation

Bai

Wang

WANG

et al. 2023

Acta Geologica Sinica (Eng)

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Southern Manzhouli experienced a tectonic regime transformation from compression to extension in the late Mesozoic, but there is a lack of petrological and detailed chronological evidence. In addition, the lack of research on volcanic lithofacies and eruption sequence restricted the study of magmatic evolution and the division and correlation of regional volcanic rock strata. Based on systematic research of volcanics, volcanic facies, chronology and geochemistry, two stages of volcanics were identified; the first stage named trachyte series was formed in the late Middle Jurassic (167Ma‐163Ma), its eruption rhythm is pyroxene trachyandesite‐trachyandesite‐trachyte, and its origin rock is basic volcanics from thickened lower crust, and the tectonic setting is the collision orogeny after the closure of Mongolia Okhotsk Ocean. The second stage is a bimodal volcanic rock, formed in the early Late Jurassic (163Ma‐160Ma). The eruption rhythm of basic volcanics of the second stage is basaltic andesite‐basalt‐olivine basalt, which comes from the metasomatized lithospheric mantle, the acidic volcanic of it is characterized by the eruption rhythm of sedimentary facies‐explosive facies‐overflow facies, and came from the partial melting of newly formed lower crust, which shows the characteristics of A‐type granite. The tectonic setting of the second stage is the extension of the lithosphere after the collision of Mongolia Okhotsk Ocean. The changes in the formation age and tectonic setting of the two stages volcanics demonstrated that the transition time from the compressive system to the extensional system in the southern Manzhouli is about 163 Ma.

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Section: Geological Backgroundmentioning

confidence: 90%

Geochronology, Eruption Sequence and Geochemistry of Mid–Late Jurassic Volcanics South of Manzhouli: Petrogenesis and Implications for Mesozoic Tectonic Regime Transformation

Bai

Wang

WANG

et al. 2023

Acta Geologica Sinica (Eng)

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“…The mantle plume hypothesis was precluded mainly because the upwelling magmas generally produced the ring‐shaped igneous rocks and the magmatism only lasted several million years (Larson & Olson, 1991) which is inconsistent with the NNE‐trending granitic belts of the GXR during Early Cretaceous (H. N. Liu et al, 2020). Previous studies have shown that the Mongol‐Okhotsk Ocean Plate has been subducted since the Early‐Middle Permian (Mi et al, 2019), closing in a scissor‐like pattern from west to east (Donskaya et al, 2013; Guo et al, 2020; Tomurtogoo et al, 2005), and finally closed in its eastern end‐member during the Late Jurassic‐Early Cretaceous (Kravchinsky et al, 2002). In addition, the NE‐trending Mongol‐Okhotsk Ocean suture zone was inconsistent with the NNE‐trending main ridge of the GXR, suggesting that the Mongol‐Okhotsk Ocean tectonic domain might lack the controlled magmatic activity of the GXR during the Early Cretaceous (Wu et al, 2011; X. P. Yang et al, 2019; R. X. Zhu & Xu, 2019).…”

Section: Discussionmentioning

confidence: 99%

“…Since the Mesozoic, the closure events of the Mongol‐Okhotsk Ocean Plate and the multistage subduction of the PPO plate have controlled the tectono‐magmatic evolution of NE China (Han et al, 2020; J. Li et al, 2019; Pang et al, 2019; W. L. Xu et al, 2013; C. Zhang et al, 2020), and formed voluminous Mesozoic granitoid rocks (Figure 1c; Gu et al, 2015; C. F. Liu et al, 2016; Lu et al, 2018; Song et al, 2015; Wei et al, 2020). Recently, growing evidence has implied that the Mongol‐Okhotsk Ocean Plate had been subducted since the Early‐Middle Permian (Mi, Lü, Yan, Zhao, & Yu, 2019), closing in a scissor‐like pattern with a west‐east direction (Donskaya, Gladkochub, Mazukabzov, & Ivanov, 2013; Tomurtogoo, Windley, Kroner, Badarch, & Liu, 2005), and finally closed in its eastern end‐member during the Late Jurassic‐Early Cretaceous (Kravchinsky, Cogne, Harbert, & Kuzmin, 2002). In addition, the NE‐trending Mongol‐Okhotsk Ocean suture zone was inconsistent with the NNE‐trending main vein of the GXR, suggesting that the Mongol‐Okhotsk Ocean tectonic domain might lack the controlled magmatic activity of the GXR during the Early Cretaceous (He et al, 2017; Tai, Mi, Wang, Li, & Kong, 2021).…”

Section: Geological Setting and Sample Descriptionsmentioning

confidence: 99%

Petrogenesis and tectonic implications of Early Cretaceous granite porphyry in the Taipingtun area, central Great Xing'an Range, NE China

Tai

Wang

et al. 2022

Geological Journal

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New LA‐ICP‐MS zircon U–Pb geochronology, whole‐rock geochemistry and Hf isotopic data have been studied on the Taipingtun granite porphyry to determine its petrogenesis and constrain the tectonic setting of the central Great Xing'an Range, northeastern China, during the Early Cretaceous. The results of zircon U–Pb dating suggest that the Taipingtun granite porphyry was emplaced during the Early Cretaceous (122–123 Ma). Geochemically, the granite porphyries have high contents of SiO2 (75.76–78.66 wt%) and (K2O + Na2O) (7.14–8.29 wt%), and low Al2O3 (11.09–12.81 wt%) and CaO (0.15–0.29 wt%), indicating peraluminous and high‐K calc‐alkaline features. Additionally, these rocks are characterized by strong Th, U, K, and Rb enrichment; Ba, Sr, P and Ti depletion; high Ga/Al ratios (10,000*Ga/Al = 2.60–4.92) and negative Eu anomalies (δEu = 0.02–0.13). According to the zircon saturation thermometer results, zircon saturation temperatures range from 756 to 959°C with an average of 823°C, displaying high magmatic temperature for the parental magma. Based on these geochemical characteristics, it can be reasonably inferred that the initial composition of the Taipingtun granite porphyry melts exhibited an A‐type magmatic affinity. Furthermore, zircon grains within the Taipingtun granite porphyry have εHf(t) values of 7.12 to 10.99 and TDM2 model ages of 476–726 Ma. The Ba/La (average 3.89), Nd/Th (average 2.25), Zr/Hf (average 22.55), Ti/Zr (average 2.96) and Rb/Sr (average 4.21) values display the characteristics of crust‐derived magmas. Moreover, these rocks have obviously negative Eu anomalies (average 0.13) and relatively high Y (average 37.83 ppm) and Yb (average 4.15 ppm) contents, suggesting the magmas are generated in a low‐pressure environment. Thus, we consider the primary magmas of the Taipingtun granite porphyry may have been predominantly derived from the partial melting of juvenile crustal rocks at low pressure. Combined with the regional geological data, we suggest that the Taipingtun granite porphyry was formed in an extensional tectonic environment, and possibly related to the subducted Palaeo‐Pacific Ocean Plate in the Early Cretaceous.

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“…The molybdenum deposits in China are mainly the products of the late Indosinian to Yanshanian magmatism, which is different from the late Cretaceo-Oligocene molybdenum deposits in foreign countries [7][8][9]. The study of geochronology and petrogeochemistry of intrusions which the porphyry deposits occurred in is not only helpful to understand the process of diagenesis and mineralization [10][11][12][13][14][15], but can also reflect the tectonic evolution process controlling the formation of intrusions and ore deposits [16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Geochronology, Geochemistry, and Lu-Hf Isotopic Compositions of Monzogranite Intrusion from the Chang’anpu Mo Deposit, NE China: Implications for Tectonic Setting and Mineralization

et al. 2022

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The Chang’anpu Molybdenum deposit occurs in the monzogranite intrusions in the Lesser Khingan Mountains-Zhangguangcai Mountains metallogenic belt. Previous work focused on the study of deposits, including geological characteristics, mineralization time, S-Pb isotope, etc. However, systematic petrogeochemical study of monzogranite intrusion and comparative analysis with other porphyry deposits in the region are lacking. Three monzogranite dating samples yield LA-ICP-MS zircon weighted mean 206Pb/238U ages of 174.7 ± 1.3 Ma, 174.9 ± 1.4 Ma, and 174.3 ± 1.8 Ma, respectively, indicating that the magmatism occurred in the middle Jurassic of Mesozoic. The 14 monzogranite samples show alkali rich and relatively high silica content (up to 84.39%) with the differentiation index (DI) ranges from 86 to 96, showing that monzogranite have been subjected to fractional crystallization during its evolution; the depletion of Ba, Sr, P, Nb, Ti, and Eu also indicates that the rock has undergone crystallization fractionation, the monzogranite belong to the highly fractionated I-type. Positive εHf(t) values (6.72–8.85) and young TDM2 (551–673 Ma) of the monzogranite indicate that the formation of Chang’anpu monzogranite intrusion is related to the partial melting of juvenile lower crust, originated from the Mesoproterozoic depleted mantle. The magmatism and related Mo mineralization in the Chang’anpu deposit occurred in an active continental margin setting associated with westward subduction of the Paleo-Pacific plate beneath the Eurasian plate.

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SHRIMP U-Pb zircon geochronology and Hf isotope analyses of Middle Permian–early triassic intrusions in southern Manzhouli area, Northeast China: implications for the subduction of Mongol-Okhotsk plate beneath the Erguna massif

Cited by 14 publications

References 66 publications

Geochronology, Eruption Sequence and Geochemistry of Mid–Late Jurassic Volcanics South of Manzhouli: Petrogenesis and Implications for Mesozoic Tectonic Regime Transformation

Geochronology, Eruption Sequence and Geochemistry of Mid–Late Jurassic Volcanics South of Manzhouli: Petrogenesis and Implications for Mesozoic Tectonic Regime Transformation

Petrogenesis and tectonic implications of Early Cretaceous granite porphyry in the Taipingtun area, central Great Xing'an Range, NE China

Geochronology, Geochemistry, and Lu-Hf Isotopic Compositions of Monzogranite Intrusion from the Chang’anpu Mo Deposit, NE China: Implications for Tectonic Setting and Mineralization

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