The Changcheng System in Ordos Basin: Detrital zircon SHRIMP U-Pb dating and Hf isotope analysis

白文倩,; WenQian, Bai; 董春艳,; Dong, Chunyan; 颉颃强,; Xie, Huixiang; 万渝生,; Yusheng, Wan

doi:10.18654/1000-0569/2019.08.05

Cited by 7 publications

(3 citation statements)

References 20 publications

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“…The Jinshajiang section is mainly characterized by erosion, with the river incising into the Qamdo Block and Songpan‐Garze basements (He et al, 2014). The zircon U‐Pb ages of this section show multiple prominent peaks, consistent with those of the underlying Qamdo Block and Songpan‐Garze basements (Figure 8a,b; Han et al, 2021; He et al, 2014; He, Li, et al, 2013; He, Zheng, & Clift, 2013; Wang et al, 2014; Wei et al, 2007; Weislogel et al, 2006, 2010; Wu et al, 2007). The Chuanjiang section converges with the tributaries, the Jialingjiang and the Wujiang, flowing through the Sichuan Basin (Figure 7).…”

Section: Discussionsupporting

confidence: 69%

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Sr‐Nd‐Hf isotopic constraints on the provenance of the modern Zambezi River sand sediments, southern Africa

et al. 2023

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Section: Discussionsupporting

confidence: 69%

“…(a) Qamdo Block and Songpan‐Garze. Data are from Weislogel et al (2006), Wei et al (2007), Wu et al (2007), Weislogel et al (2010), He, Li, et al (2013), Wang et al (2014) and Han et al (2021). (b‐f, h) Modern Yangtze mainstream and tributary.…”

Section: Discussionmentioning

confidence: 99%

Sr‐Nd‐Hf isotopic constraints on the provenance of the modern Zambezi River sand sediments, southern Africa

et al. 2023

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“…Kernel density estimates (KDEs) and histograms of U–Pb ages binned at 50 myr intervals from detrital zircons in the western North China Craton (Western NCC, Bai et al., 2019; Darby & Gehrels, 2006; Wang et al., 2016; Zhang et al., 2021), detrital zircons in the southern Transitional North China Orogen (Southern TNCO, Li et al., 2013, 2020; Liu et al., 2021; Wang, 2020), detrital zircons in the Longshan Complex (He et al., 2005; Xu, 2018), detrital zircons of Permian covers in the northern division of the West Qinling area (d) (Gao et al., 2019), detrital and magmatic zircons in the North Qinling orogenic belt (NQOB; Diwu et al., 2010, 2014; Yang et al., 2010; Zhu et al., 2011), detrital and magmatic zircons in the South Qinling Orogenic Belt (SQOB, Xu et al., 2014; Zeng et al., 2021; Zhu et al., 2014), magmatic zircons in the Qilian Orogenic Belt (QLOB, Gao et al., 2021; Wu et al., 2017) and all the detrital zircons of six submarine fan samples in the Panyuan section.…”

Section: Discussionmentioning

confidence: 99%

High‐frequency temporal variability of provenance signal in the submarine fan with the narrow shelf: Insights from sediment delivery and formation of late Triassic Zhuoni fan in the northeastern Paleo‐Tethys Ocean

Tan,

Sun,

et al. 2023

Basin Research

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The submarine fan with a narrow shelf is usually reactive to environmental signal propagation; however, source‐to‐sink functioning can be further complicated by several allogenic forcings. Here, we document the high‐frequency provenance variations and different sediment delivery models recorded in the late Triassic Zhuoni fan developed in the northeastern Paleo‐Tethys Ocean, mainly based on process‐based sedimentological and provenance study of the Panyuan section in the West Qinling area in the northeastern margin of Tibetan Plateau. High‐, low‐density turbidites, hybrid event beds and hyperpycnites are distributed in the lobe‐dominated submarine fan succession. Field sedimentological evidence from surrounding outcrops suggests that shelf‐edge failure was the main cause of most high‐ and low‐density turbidites with the overall absence of submarine slides or slumps, whereas the narrow shelf configuration together with late Triassic humid pulses is favourable for the occurrence of flood‐related hyperpycnites in the Zhuoni fan. Detrital zircon grains (N = 6; n = 123–272) generally have Palaeozoic‐Mesozoic ages (ca. 350–250 Ma and 500–400 Ma) and Neoarchean‐Paleoproterozoic ages (ca. 2100–1750 Ma and 2600–2400 Ma), but they can be further categized into three age groups due to different proportions of Precambrian age populations. The results demonstrate that the potential source areas may include the South and North Qinling Orogenic Belt, Qilian Orogenic Belt, different segments of North China Craton and the tectonic junction area between the Qinling and Qilian Orogenic Belts. The temporal changes in provenance signals, which are reflected by both the detrital zircon age spectra and heavy mineral assemblages, indicate different contributions of those sources in response to sea‐level fluctuation. It could thus give rise to temporal variations between reactive and buffered source‐to‐sink sediment delivery models of the Zhuoni fan, despite the overall narrow shelf configuration. The development of the lowstand Zhuoni fan was directly related to extrabasinal hyperpycnal delivery from the river mouth and its high‐frequency provenance variability recorded different efficiencies of signal transfer through the onshore catchment with significantly influence of temporal storage, fluvial rejuvenation or even regional climate variability. The highstand submarine fan was thought to be formed by shelf‐edge failure with sediment buffering in the shelf region, which was associated with a strong magnitude of provenance mixing. Our work provides a new perspective for deciphering the different origins of deep‐water sediment delivery in response to high‐frequency sea‐level and climate changes.

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Detrital zircon ages, sources, and implications of the Tangwangling Group, southern margin of the Ordos Block, western North China Craton

Chen

et al. 2020

Geosci J

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The Changcheng System in Ordos Basin: Detrital zircon SHRIMP U-Pb dating and Hf isotope analysis

Cited by 7 publications

References 20 publications

Sr‐Nd‐Hf isotopic constraints on the provenance of the modern Zambezi River sand sediments, southern Africa

Sr‐Nd‐Hf isotopic constraints on the provenance of the modern Zambezi River sand sediments, southern Africa

High‐frequency temporal variability of provenance signal in the submarine fan with the narrow shelf: Insights from sediment delivery and formation of late Triassic Zhuoni fan in the northeastern Paleo‐Tethys Ocean

Detrital zircon ages, sources, and implications of the Tangwangling Group, southern margin of the Ordos Block, western North China Craton

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