Geochronology and geochemistry of Late Triassic-Early Jurassic granites in Moerdaoga area, NE China and its tectonic implications

Nature of the Paleo‐Pacific Subduction Along the East Asian Continental Margin in the Mesozoic: Insights From the Sedimentary Record of West Sarawak, Borneo

“…(f) Tectonic background of the sedimentary rocks from West Sarawak (Bhatia, 1985). The La, Ce value of the mudstone was divided by 1.2 to obtain the correction equivalent to that of the graywackes (W. L. Xu et al., 2013; Z. J. Xu et al., 2013). Part of the Serabang Formation (Lubok Antu Melange) is from Zhao et al.…”

“…The nature of Mesozoic tectono‐magmatic evolution within East Asia and their links to the subduction history of tectonic plates that existed prior to the current Pacific realm (i.e., Paleo‐Pacific) remains a controversial topic (Jahn, 1974; Li & Li, 2007; Wu et al., 2019; Zhou & Li, 2000). Extensive magmatism took place in northeast China (Tang et al., 2016; W. L. Xu et al., 2013; Z. J. Xu et al., 2013), Japan (Pastor‐Galán et al., 2021)，the North China Block (Wu et al., 2019), southeast China (Li & Li, 2007), Pearl River Mouth Basin (Xu et al., 2017; Yan et al., 2014), Indochina Peninsula (Nguyen et al., 2004), and Borneo (Breitfeld et al., 2017; Wang et al., 2022), forming a NNE‐trending volcanic‐intrusive complex belt (Figure 1a). It is thought that subduction and rollback of the Paleo‐Pacific plate are the main dynamic factors responsible for the destruction of the North China Craton (Hao et al., 2020; Li et al., 2019), Yanshan movement (or Orogeny) (Wang et al., 2011; Wu et al., 2019) and a flare‐up in magmatic activity along the East Asian continental margin (Li & Li, 2007; Zhou et al., 2021).…”

Tectonic Rotation Pattern at the Northern End of the Red River Fault System in SE Tibet: New Paleomagnetic Evidence From Cretaceous Red Beds

“…However, several magmatic and metamorphic events of Early Cretaceous age exist in the vicinity of other boundary faults in the southeastern Tibetan Plateau (Deng et al., 2014; Lu et al., 2012; C. M. Wang et al., 2014). For example, hydrothermal Au‐bearing deposits with a siderite Rb‐Sr age of 118 ± 26 Ma are exposed within the Ganze‐Litang suture zone (Deng et al., 2014), and a granite pluton with K‐Ar, Rb‐Sr, and zircon U‐Pb ages within the age range of 136–113 Ma is exposed in the northern part of the Sibumasu Terrane, and likely resulted from crustal melting (Shi et al., 1989; Tao et al., 2009; C. M. Wang et al., 2014; Xu et al., 2012; Q. J. Yang et al., 2009; W. Y. Zhang, 1996). In addition, apatite and zircon (U–Th)/He and apatite fission track thermoschronometric data from the Sibumasu Terrane suggest that a pulse of moderate to high exhumation from 120 to 80 Ma occurred in the northern part of the Sibumasu Terrane (J. Liu‐Zeng et al., 2018).…”

“…For example, hydrothermal Au-bearing deposits with a siderite Rb-Sr age of 118 ± 26 Ma are exposed within the Ganze-Litang suture zone (Deng et al, 2014), and a granite pluton with K-Ar, Rb-Sr, and zircon U-Pb ages within the age range of 136-113 Ma is exposed in the northern part of the Sibumasu Terrane, and likely resulted from crustal melting (Shi et al, 1989;Tao et al, 2009; C. M. Wang et al, 2014;Xu et al, 2012; Q. J. Yang et al, 2009;W. Y. Zhang, 1996).…”

Subduction of the Palaeo‐Pacific Plate beneath the Jiamusi Block: Constraints from the Late Triassic–Late Jurassic sedimentary records in the eastern Jiamusi Block

“…Previous studies on rock geochemistry and the dating of igneous and metamorphic rocks have shown that the Jiamusi Block experienced the transition from the Palaeo‐Asian Ocean's closure to the Palaeo‐Pacific Plate's subduction (Bi et al, 2014; Dong et al, 2017; Long et al, 2020; W. L. Xu et al, 2012; Zhou, Wilde, et al, 2009). However, a key question remains concerning the timing of this transition, including the suggestions of the Early Permian (Bi et al, 2014; Dong et al, 2017; Ge et al, 2015, 2017; K. Liu et al, 2017; Long et al, 2020; Wu, Wilde, & Sun, 2001; Yu et al, 2013), the Late Triassic (Zhou et al, 2010; Zhou & Li, 2017; Zhou, Wilde, et al, 2009; Zhou, Zhang, et al, 2009), and the Early‐Middle Jurassic (Pei, 2008; Tang et al, 2011; W. L. Xu et al, 2012; Yu et al, 2012). With advances in detrital zircon LA‐ICP‐MS U–Pb dating technology in China and abroad (Dickinson & Gehrels, 2009; Gehrels, 2014; Z. J. Xu et al, 2020), studying detrital zircon U–Pb ages of sediment can help geologists search for sediment source areas and discuss tectonic evolution of study areas accurately and quickly (Z. J. Xu et al, 2020).…”