Petrogenesis of early Cretaceous granitoids in the southern Great Xing’an Range, NE China: Constraints from the Haliheiba pluton

Wei, Wei; Zou, Tao; Xingkai, Huang; Jiang, Bo‐Nan; Zhu, Xinyou; Wu, Xiyong

doi:10.1016/j.chemer.2020.125608

Cited by 13 publications

(27 citation statements)

References 72 publications

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“…On the Rb versus Y + Nb diagram (Figure 8d), both two group samples plot within the post-collisional area, consistent with the Cretaceous extensional tectonic setting in the GXR as mentioned above (Pearce, 1996;Z. Y. Tang et al, 2020;Wei et al, 2020;Y. T. Zhang, Sun, Wang, & Xin, 2018).…”

Section: Petrogenesis For Enclaves Of Quartz Monzodioritessupporting

confidence: 79%

“…R. Meng, 2003), and thrown fault in the Mohe Basin (C. L. Li, 2007). Both the host GM rocks and enclaves of quartz monzodiorites in this paper intruded at $125 Ma, corresponding to a conspicuous pulse of extensional mechanism-related magmatism in NE China (Wei et al, 2020;F. Y. Wu et al, 2011).…”

Section: Petrogenesis For Enclaves Of Quartz Monzodioritesmentioning

confidence: 91%

“…Chen et al, 2015;Dong et al, 2014;Y. L. Wang, Ao, et al, 2019;Wei et al, 2020). Taken together, no matter whether the Zhalantun area was affected by either the Mongol-Okhotsk domain or Palaeo-Pacific tectonic domain, or both of them, NE China has conformably been believed to undergo an extensional environment during the Jurassic-Cretaceous era (M. D. Sun, 2016;Wei et al, 2020;W.…”

Section: Petrogenesis For Enclaves Of Quartz Monzodioritesmentioning

confidence: 99%

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Products of an Early Cretaceous extensional mechanism in the central Great Xing'an Range: Felsic plutons in the Zhalantun area and their parental magma compositions and diagenetic processes

Xiao

Guo

et al. 2021

Geological Journal

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Late Mesozoic extensional mechanisms in the Great Xing'an Range (GXR) and relevant crust-mantle interactions are complicated, which result in widespread magmatisms with diverse parental origins and petrogenesises. In this paper, we present the lithology, whole-rock geochemistry, and zircon U-Pb-Lu-Hf isotopes for granodiorite-monzogranite rocks (GM) and their enclaves of quartz monzodiorites in the Zhalantun area, east of central GXR. Zircon U-Pb dating results reveal that both GM rocks and their enclaves of quartz monzodiorites yield a nearly identical crystallization age of $125 Ma. The GM rocks exhibit weak peraluminous and high-K calcalkaline compositions with high SiO 2 , Na 2 O + K 2 O, and Al 2 O 3 contents, and low MgO, Mg # , Fe 2 O 3T , and TiO 2 contents, which are characterized by fractionated REE patterns, relatively strong negative Eu anomalies, enrichments of LILEs (e.g., Rb, Ba, and K), and depletions of Nb, Ta, P, and Ti. The parental origins for GM samples were juvenile crustal materials, with positive zircon ε Hf (t) values of +2.5 to +12.9. The whole-rock and zircon geochemical simulations limit slightly lower GM magma crystallization temperatures (T Ti-Zrn ) of 683-824 C and relatively more oxidizing conditions (log(fO 2 ) = FMQ+7.6-FMQ-6.8), and further confine that they were probably formed by $10-35% degrees of fluid-present partial melting of lower to middle crustal materials, with fractional crystallization and/or residual mineral phases of plagioclase, amphibole, clinopyroxene, and garnet. By contrast, the enclaves of quartz monzodiorites possess lower SiO 2 and Na 2 O + K 2 O compositions, but higher MgO, Mg # , Fe 2 O 3T , and TiO 2 values, which are consistent with metaluminous-weak peraluminous and high-K calc-alkaline series. All quartz monzodiorites exhibit subparallel right-declined REE patterns, negligible to none Eu anomalies, enrichments of LILEs, and depletions of Nb, Ta, and Ti. Combined with mineral morphology and disequilibrium structures, the whole-rock geochemical and Hf isotopic simulations imply that parental magmas for quartz monzodiorites were hybrid mixtures between $50% host GM acid magmas and $50% ancient crust compositions, with a wide range of zircon ε Hf (t) of +14.0 to À7.7, slightly higher T Ti-Zrn of 710-835 C, and lower log(fO 2 ) of FMQ+8.2-FMQ-10.5. Taken together, felsic plutons in the Zhalantun area

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Section: Petrogenesis For Enclaves Of Quartz Monzodioritessupporting

confidence: 79%

Section: Petrogenesis For Enclaves Of Quartz Monzodioritesmentioning

confidence: 91%

Section: Petrogenesis For Enclaves Of Quartz Monzodioritesmentioning

confidence: 99%

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Products of an Early Cretaceous extensional mechanism in the central Great Xing'an Range: Felsic plutons in the Zhalantun area and their parental magma compositions and diagenetic processes

Xiao

Guo

et al. 2021

Geological Journal

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“…From the point of view of plate tectonics, NE China belongs to the eastern section of the Central Asian Orogenic Belt (Figure 1a) [4][5][6]8,9,18,24,39,63] and is confined between the Solonker-Xar Moron suture zone on the northern margin of the North China Craton and the Mongol Okhotsk suture zone on the southern margin of the Siberia Craton, with the western Pacific coastal zone to the east (Figure 1b) [7,[10][11][12][13]16,17,19,20,32,53,65]. The [2] and Zhang et al [63]).…”

Section: Geological Backgroundmentioning

confidence: 99%

“…Northeast (NE) China, which is well-known for its extensive distribution of Late Mesozoic igneous rocks [1][2][3][4][5][6][7][8], is situated in the eastern segment of the Central Asian Orogenic Belt and bounded by the northern part of the North China Craton, the southern part of the Siberia Craton and the western Pacific rim (Figure 1a) [9][10][11][12][13][14][15][16][17][18][19][20]. During the Late Mesozoic, this region experienced multi-stage structural superposition and tectonic reformation of the Paleo-Pacific Ocean (PPO) and Mongol-Okhotsk Ocean tectonic domains, recording multiple tectonic-thermal events of different scales by widespread intrusive rocks [13,[21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Petrogenesis and Tectonic Setting of Early Cretaceous Intrusive Rocks in the Northern Ulanhot Area, Central and Southern Great Xing’an Range, NE China

Tai

Wang

et al. 2021

Minerals

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Abundant Early Cretaceous magmatism is conserved in the central and southern Great Xing’an Range (GXR) and has significant geodynamic implications for the study of the Late Mesozoic tectonic framework of northeast China. In this study, we provide new high-precision U–Pb zircon geochronology, whole-rock geochemistry, and zircon Hf isotopic data for representative intrusive rocks from the northern part of the Ulanhot area to illustrate the petrogenesis types and magma source of these rocks and evaluate the tectonic setting of the central-southern GXR. Laser ablation inductively coupled plasma–mass spectrometry (LA-ICP-MS) zircon U–Pb dating showed that magmatism in the Ulanhot area (monzonite porphyry: 128.07 ± 0.62 Ma, quartz monzonite porphyry: 127.47 ± 0.36, quartz porphyry: 124.85 ± 0.34, and granite porphyry: 124.15 ± 0.31 Ma) occurred during the Early Cretaceous. Geochemically, monzonite porphyry belongs to the metaluminous and alkaline series rocks and is characterized by high Al2O3 (average 17.74 wt.%) and TiO2 (average 0.88 wt.%) and low Ni (average 4.63 ppm), Cr (average 6.69 ppm), Mg# (average 31.11), Y (average 15.16 ppm), and Yb (average 1.62 ppm) content with enrichment in Ba, K, Pb, Sr, Zr, and Hf and depletion in Ti, Nb, and Ta. The granitic rocks (e.g., quartz monzonite porphyry, quartz porphyry, and granite porphyry) pertain to the category of high-K calc-alkaline rocks and are characterized by high SiO2 content (>66 wt.%) and low MgO (average 0.69 wt.%), Mg# (average 31.49 ppm), Ni (average 2.78 ppm), and Cr (average 8.10 ppm) content, showing an affinity to I-type granite accompanied by Nb, Ta, P, and Ti depletion and negative Eu anomalies (δEu = 0.57–0.96; average 0.82). The Hf isotopic data suggest that these rocks were the product of the partial melting of juvenile crustal rocks. Notably, fractionation crystallization plays a crucial role in the process of magma emplacement. Combining our study with published ones, we proposed that the Early Cretaceous intrusive rocks in the Ulanhot area were formed in an extensional tectonic background and compactly related to the subduction of the Paleo-Pacific Ocean plate.

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The origin of microgranular enclaves in the Early Cretaceous Shuangjianzishan granites in southern Great Hinggan Range, NE China

Dai

Gao

et al. 2022

Geological Journal

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The microgranular enclaves (MEs) and their host granitoids contain vital information on the genesis and evolution of the magma, especially for those which have close relationship with mineralization, yet remains a hot debate on their origin. Here, we investigate the MEs and their host granitoids in the Shuangjianzishan (SJZ) deposits, southern Great Hinggan Range, NE China, using ziron U-Pb dating and Hf isotopes, along with a systematic analysis of whole-rock geochemical and Sr-Nd isotopic compositions. The SJZ MEs mainly consist of monzonites and quartz monzonites, and the SJZ granitoids comprise a suite of fine-grained syenogranites and coarse-grained monzogranites. The zircon U-Pb dating results suggest that the SJZ granitoids and the SJZ MEs were emplaced at approximately 143-141 Ma. Geochemical features and isotopic compositions of the SJZ granitoids indicate that they are mainly generated by partial melting of juvenile lower-crustal basaltic rocks. The fine-grained syenogranites and the coarsegrained monzogranites have a gradual contact relationship, similar crystallization age, Sr-, Nd-, and Hf-isotopic compositions, suggesting that they were derived from a similar silicic magma reservoir. According to the geochemical compositions and petrographic characteristics (aggregates of coarse-grained euhedral plagioclase crystals) of the SJZ granitoids, we infer that the monzogranites (SiO 2 = 69.24-74.95 wt%) are regarded as the residual cumulate and the fine-grained syenogranites (SiO 2 = 74.83-77.97 wt%) are high silica melts segregated from a crystal mush. The SJZ MEs are characterised by low SiO 2 (50.03-64.20 wt%) and MgO (1.08-2.63 wt%) contents, high P 2 O 5 contents and contain acicular apatite, which are consistent with the products of intermediate magma.Combining with the MEs have comparable crystallization age, mineral assemblage, whole-rock Sr-Nd and zircon Hf-isotopic compositions with their host granitoids, implying the MEs were autoliths related to their host monzogranites. Collectively, we infer that the SJZ MEs were generated by the rapid cooling and crystallization of the hot ascending intermediate magmas contacted with the cooler wall rocks, then those subsolid fine-grained crystal-rich margins were fragmented and injected into the progressive evolved mush chamber, leading to the extraction and upward percolation of high silicic melts from the compacting crystal-rich mush in the shallow crust.

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Petrogenesis of early Cretaceous granitoids in the southern Great Xing’an Range, NE China: Constraints from the Haliheiba pluton

Cited by 13 publications

References 72 publications

Products of an Early Cretaceous extensional mechanism in the central Great Xing'an Range: Felsic plutons in the Zhalantun area and their parental magma compositions and diagenetic processes

Products of an Early Cretaceous extensional mechanism in the central Great Xing'an Range: Felsic plutons in the Zhalantun area and their parental magma compositions and diagenetic processes

Petrogenesis and Tectonic Setting of Early Cretaceous Intrusive Rocks in the Northern Ulanhot Area, Central and Southern Great Xing’an Range, NE China

The origin of microgranular enclaves in the Early Cretaceous Shuangjianzishan granites in southern Great Hinggan Range, NE China

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