A comparison of zircon U-Pb age results of the Red Clay sequence on the central Chinese Loess Plateau

Gong, Hang; Nie, Junsheng; Wang, Zhao; Peng, Wei; Zhang, Rui; Zhang, Yunxiang

doi:10.1038/srep29642

Cited by 10 publications

(7 citation statements)

References 44 publications

(53 reference statements)

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“…Detrital zircon age spectra are very similar in the Cenozoic sediments of the QB and in the late Miocene‐Pliocene loess‐red clay sequences of the CLP (Bush et al., 2016; Gong et al., 2016; Nie et al., 2018; Wang et al., 2017; Figure S9 in Supporting Information ), both showing two major populations at 300–200 Ma and 500–400 Ma beside three minor age populations at 1.0–0.7 Ga, 2.0–1.5 Ga and 2.7–2.2 Ga…”

Section: Discussionmentioning

confidence: 99%

“…In addition to the striking coincidence in timing, three lines of evidence can be used to support this linkage: Detrital zircon age spectra are very similar in the Cenozoic sediments of the QB and in the late Miocene‐Pliocene loess‐red clay sequences of the CLP (Bush et al., 2016; Gong et al., 2016; Nie et al., 2018; Wang et al., 2017; Figure S9 in Supporting Information ), both showing two major populations at 300–200 Ma and 500–400 Ma beside three minor age populations at 1.0–0.7 Ga, 2.0–1.5 Ga and 2.7–2.2 Ga the percentage of the 0–63 μm grain‐size fraction that can be transported in suspension by wind (Pye, 1987) shows a sharp decrease from >80% to ∼40% in the Dahonggou section between ∼8 and 7.2 Ma (Figure 2). In combination with the sediment recycling event discussed above, it is possible that many fine‐grained clastic particles were removed during sediment recycling in the northern Tibet fold‐thrust belts by the the westerly winds to be deposited farther east, where a coeval sharp increase in mean grain size is observed, for example, in the Zhuanglang section (Y.…”

Section: Discussionmentioning

confidence: 99%

“…Supplementary data supporting the conclusions is available on the research data repository of the Figshare (https://doi.org/10.6084/m9.figshare.18093839). The data on which this article is based are also available in Bush et al (2016), Gong et al (2016), Lu et al (2014), Nie et al (2018), Pang et al (2019), J. Sun et al (2005) and Wang et al (2017).…”

Section: Data Availability Statementmentioning

confidence: 99%

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Syntectonic Sediment Recycling Controls Eolian Deposition in Eastern Asia Since ∼8 Ma

Malusà

Zhang

et al. 2022

Geophysical Research Letters

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Global cooling and/or Tibetan Plateau uplift have long been regarded as the principal drivers of late Cenozoic central Asian aridification and the resulting widespread accumulation of eolian deposits in eastern Asia. However, these two factors are unable to form large source areas of fine-grained sediments enhancing eolian deposition synchronously from northern Tibet to North Pacific. Here we provide magnetostratigraphic and detrital apatite fission-track evidence for a major sediment recycling event in northern Tibet at ∼8 Ma, coeval with a sudden increase in eolian deposition, which we ascribe to syntectonic erosion of uplifted friable fluvio-lacustrine sediments and selective entrainment by the westerly winds during basin deformation. Our results emphasize the importance of widespread and persistent occurrence of fine-grained sediments along the pathway of westerlies to produce voluminous dust deposits. These findings suggest that the onset of eolian deposition may not be directly related to global cooling or uplift of mountain ranges.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Data Availability Statementmentioning

confidence: 99%

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Syntectonic Sediment Recycling Controls Eolian Deposition in Eastern Asia Since ∼8 Ma

Malusà

Zhang

et al. 2022

Geophysical Research Letters

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“…Published zircon U-Pb ages from Baode, Jingbian, Huanxian, Lingtai, Xifeng, Weinan, Caoxian, Xining, Ledu, Dongwan, and Shilou (15,19,20,24,(26)(27)(28)(29)(30)(31)34) were compiled. The details about sample locations, lithology, and references are shown in Fig.…”

Section: Compilation Of Published Zircon U-pb Ages and Sr-nd-hf Isoto...mentioning

confidence: 99%

Large-number detrital zircon U-Pb ages reveal global cooling caused the formation of the Chinese Loess Plateau during Late Miocene

Zhang

et al. 2022

Sci. Adv.

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The formation and evolution of the landscape of the Chinese Loess Plateau (CLP) is debated because of uncertainties regarding dust provenance. We present a quantitative estimation of dust source contributions to the CLP, based on more than 37,100 detrital zircon U-Pb ages, combined with mineral assemblages and isotope analyses. Our results reveal that the CLP was stepwise formed by ~8 million years (Ma) and is mainly composed of material from the Northeastern Qinghai-Tibetan Plateau, with stepwise shifts in relative contributions of different eolian silt sources occurring at ~2.6 Ma and 1.5 to 1.2 Ma. We infer that these changes were driven by stepwise global cooling, which induced aridification and enhanced silt production in glaciated-cold climate dust source regions, as well as dust ablation in the expanded arid regions. We propose that global cooling, rather than regional tectonic deformation, was the main driver of the formation and evolution of the CLP during late Cenozoic.

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“…Loess was investigated by geologists and pedologists who focused mainly on its geological origin (Zhu 1991;Gong et al 2015;Deng et al 2019), distribution (Nie et al 2015;Zhang et al 2018), composition, and properties (Smalley 1995;Gong et al 2016). Loess contains clay minerals which have a range of particle sizes, are of multiple types, and possess various dispersibilities.…”

Section: Introductionmentioning

confidence: 99%

Review: Progress with Functional Materials Based on Loess Particles

Shen

Yan

Wang

et al. 2021

Clays and clay miner.

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Loess is a large-scale deposit which is easy to mine and widely distributed on the epipedon. The clay fraction of loess, also known as 'loessial clay', is a very important component of loess which affects its properties and performance. From a 'materials' perspective, the clay fraction of loess has been ignored. Recently, loess particles have attracted interest because of their potential applications. The focus in the current review is on the methods of modifying loess particles and their application as functional materials. The major components of loess particles are clays, calcite, and quartz, with the clays including kaolinite, illite, montmorillonite, and chlorite. Loess has a range of particle sizes, types, and dispersibilities. The particles agglomerate readily, mainly because cementation occurs readily in the clay fraction. Loess particles can be modified and their properties can be improved by compaction, separation, purification, acidification, calcination, surfactant modification, geopolymerization, and polymer modification. Loess-based functional materials have been used as sorbents, eco-friendly superabsorbents, soil and water conservation materials, humidity-regulating materials, and building materials. Separated and purified loess particles can adsorb metal ions and harmful elements directly. Surfactant-modified loess particles can remove organic compounds effectively. After modification with polymers, loess particles exhibit greater capacity for the removal of environmental pollutants such as harmful metal ions and dyes. As a superabsorbent, modified loess shows excellent thermal stability and swelling behavior. Calcined loess could be utilized as an energy-saving building material with good humidityregulating performance, and geological polymerization has further expanded the scope of applications of loess in architecture. In summary, loess-based functional materials, which are inexpensive and ecologically friendly, deserve more attention and further development. Keywords-Application . Clay . Functionalization . Loess-based materials . Loess particles CLASSIFICATION, DISTRIBUTION, COMPOSITION, AND PHYSICOCHEMICAL PROPERTIES OF LOESS Classification and Distribution Loess can be classified from various perspectives. Using the geological and geographical classification, loess has been divided into plateau, intermontane basin,

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A comparison of zircon U-Pb age results of the Red Clay sequence on the central Chinese Loess Plateau

Cited by 10 publications

References 44 publications

Syntectonic Sediment Recycling Controls Eolian Deposition in Eastern Asia Since ∼8 Ma

Syntectonic Sediment Recycling Controls Eolian Deposition in Eastern Asia Since ∼8 Ma

Large-number detrital zircon U-Pb ages reveal global cooling caused the formation of the Chinese Loess Plateau during Late Miocene

Review: Progress with Functional Materials Based on Loess Particles

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