Provenance versus weathering control on sediment composition in tropical monsoonal climate (South China) - 2. Sand petrology and heavy minerals

Garzanti, Eduardo; He, Jie; Barbarano, Marta; Resentini, Alberto; Li, Chao; Lu, Yang; Yang, Shouye; Wang, Hua

doi:10.1016/j.chemgeo.2020.119997

Cited by 32 publications

(18 citation statements)

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“…In this section, we summarise the main geological, geomorphological, and hydrological characteristics of the studied river catchments in mainland China and western Taiwan, together with the main petrographic and heavy-mineral signatures of modern sand carried by the diverse branches of the Pearl River and by coastal rivers of SE China (data and methods fully illustrated in Garzanti et al, 2020), by the Yangtze River (data after Vezzoli et al, 2016), and by selected rivers F I G U R E 1 Studied river systems in western Taiwan and mainland China with sampling locations (circles = river sands; squares = stratigraphic sections Taanchi in NW Taiwan and Tsengwenchi in SW Taiwan after Nagel et al, 2014; red-filled symbols are samples analysed for detrital garnet)…”

Section: River Systems and Sand Mineralogymentioning

confidence: 99%

“…Moderately poor to moderately rich tHM suites are dominated by amphibole, with subordinate epidote, clinopyroxene, garnet, and minor titanite, tourmaline, zircon, apatite, sillimanite and hypersthene. Yangtze sand largely retains the orogenic compositional signal inherited from the eastern margin of Tibet and the Longmen Shan in the upper reaches, mixed Garzanti et al, 2020). Two blue dashed lines indicate possible boundaries between the Yangtze and Cathaysia blocks, corresponding to the Shiping-Nile-Luodian Fault to the west and to the Chaling-Pingxiang Fault to the east (Zhao & Cawood, 2012 with feldspatho-quartzose detritus form the Cathaysia Block contributed by southern tributaries in the middle and lower reaches (Vezzoli et al, 2016).…”

Section: Yangtze Rivermentioning

confidence: 99%

“…River sands of western Taiwan are enriched in lithics relative to their parent Neogene sandstones. (b) Array of heavy-mineral modes indicating dominant durable minerals in Neogene sandstones and modern sands of Taiwan (data from the Taanchi and Tsengwenchi sections after Nagel et al, 2014; data from modern sands after Garzanti et al, 2020;Resentini et al, 2017;Vezzoli et al, 2016). Q = quartz; F = feldspars; L = lithics (Lm = metamorphic; Lv = volcanic; Ls = sedimentary); tHMC = transparent heavy-mineral concentration: ZTR = zircon +tourmaline + rutile; Grt = garnet; Ap = apatite; Amp = amphibole; Ep = epidote; Px = pyroxene F I G U R E 6 Investigating ultimate provenance of Neogene Taiwan sandstones by mineral proportions.…”

Section: Framework Petrography and Heavy Mineralsmentioning

confidence: 99%

“…Geological sketch map of South China (simplified after Garzanti et al., 2020). Two blue dashed lines indicate possible boundaries between the Yangtze and Cathaysia blocks, corresponding to the Shiping‐Nile‐Luodian Fault to the west and to the Chaling‐Pingxiang Fault to the east (Zhao & Cawood, 2012).…”

Section: Geological Frameworkmentioning

confidence: 99%

“…In this study, we address this major paleogeographic problem by multitechnique provenance analysis. Petrographic and heavy-mineral data sets collected with the same methods and following the same criteria on Neogene Taiwan sandstones (Nagel et al, 2014), modern sand of western Taiwan rivers Resentini et al, 2017), modern sediment carried by the Pearl River and smaller rivers of coastal SE China (Garzanti et al, 2020;He et al, 2019He et al, , 2020, and modern Yangtze River sand (Vezzoli et al, 2016) are integrated here with Raman spectroscopy analysis of detrital garnet (Figure 1). Also used in this study are published zircongeochronology data from river sand in mainland China and Taiwan from Deng, Yang, Li, et al (2017), He et al (2013), Liu et al (2017), Xu et al (2007), Xu et al (2014Xu et al ( , 2016, Zhao et al (2015), and Zhong et al (2017).…”

Section: Introductionmentioning

confidence: 99%

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Provenance of Neogene sandstones in western Taiwan traced with garnet geochemistry and zircon geochronology

et al. 2021

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In this study, we use provenance analysis to shed light on the Neogene evolution of river drainage and sediment dispersal in eastern Asia as a consequence of the Himalayan orogeny and topographic rise of the Tibetan Plateau. As an attempt to envisage how sediment-routing systems operated in the past, and to identify the ultimate source of siliciclastic detritus originally generated in mainland China and now incorporated in, and recycled from, the western Taiwan accretionary prism, we have used Raman spectroscopy of detrital garnet in modern river sands and upper Neogene sandstones, complemented by detrital-zircon geochronology and by petrographic and heavy-mineral analysis. Garnet grains are relatively abundant and largely represented by almandine with various percentages of pyrope molecules in Yangtze sand as in western Taiwan sandstones and modern river sand derived from them. Instead, they are rare and largely represented by grossular or andradite in the sand of the Pearl River and of coastal rivers of SE China facing the Taiwan Strait. This finding supports the result of detrital geochronology, which documents a sharp difference between U-Pb age spectra of Pearl River and coastal SE China zircons (characterised by a Paleozoic-Mesozoic triple peak) and Yangtze and western Taiwan zircons (characterised by prominent Neoproterozoic, Paleoproterozoic, and latest Archean clusters). The Pearl River and minor rivers facing the Taiwan Strait are thus ruled out as ultimate sources of upper Neogene sandstones exposed today along the western front of the Taiwan fold-thrust belt. In the envisaged scenario, sand mostly supplied by the paleo-Yangtze River was entrained for ~ca.1,000 km southward by longshore currents and deposited on the Chinese passive margin before being accreted along the front of the Taiwan orogen since ~6 Ma. Littoral sand drift represents a major factor of long-distance sediment transport in modern shelves and needs to be taken into full account in source-to-sink studies and paleogeographic reconstructions.

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Section: River Systems and Sand Mineralogymentioning

confidence: 99%

Section: Yangtze Rivermentioning

confidence: 99%

Section: Framework Petrography and Heavy Mineralsmentioning

confidence: 99%

Section: Geological Frameworkmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Provenance of Neogene sandstones in western Taiwan traced with garnet geochemistry and zircon geochronology

et al. 2021

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Low-temperature thermochronology data from the eastern South China Block decipher episodic subduction of the Paleo-Pacific Plate

Danišík

et al. 2021

Preprint

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Mesozoic subduction of the Paleo-Pacific Plate triggered intense tectonism, magmatism, and metallogeny in the eastern South China Block (E-SCB) and set off long-term tectonic, topographic, and climatic responses. However, contrasting hypotheses have been proposed to interpret the timing, style, and evolution of this oceanic subduction. Unraveling the exhumation history of the E-SCB is crucial to understanding deep subduction processes. To address the poorly documented exhumation history of the E-SCB, we present first zircon and apatite (U-Th)/He dates from eight Mesozoic granitoids distributed in a lateral profile across the intracontinental E-SCB. These data are combined with a compilation of regional thermochronological data, in order to address the evolution of the E-SCB in a tectonic, topographic, and climatic evolution framework. Zircon and apatite (U-Th)/He central ages of the investigated plutons range from 146-30 Ma and 82-31 Ma, respectively, implying long-lived exhumation of the intracontinental E-SCB. Inverse thermal modelling indicates the intracontinental SCB underwent multi-phase exhumation events from the Jurassic, despite variable onset timing and the fact that the far intracontinental E-SCB had been an exhumation center prior to the Early Cretaceous. In addition, a compilation map of regional thermochronological data reveals propagation of the exhumation center from the intracontinental to the epicontinental E-SCB over time (from the Cretaceous to the Paleogene). Based on these results, we propose a refined model of Paleo-Pacific Plate subduction since the Triassic. This model is in good agreement with geological observations in the E-SCB and capable of explaining regional magmatism, metallogeny, tectonism, and exhumation.Hosted file supporting information.docx available at https://authorea.com/users/529417/articles/597095low-temperature-thermochronology-data-from-the-eastern-south-china-block-decipherepisodic-subduction-of-the-paleo-pacific-plate

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A global dataset of sandstone detrital composition by Gazzi‐Dickinson method

Dong,

Hu,

Lai

et al. 2023

Geoscience Data Journal

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Detrital composition of sandstone is the most important data for siliciclastic studies including sandstone classification, provenance analysis, oil and gas exploration. A large amount of detrital composition data has accumulated over the past decades, however, they are scattered in publications without unified standards. Here we constructed a global dataset of detrital components of sandstones from 646 peer‐reviewed publications using Gazzi‐Dickinson method. A total of 19,861 samples from Precambrian to Quaternary are involved in this dataset. For each sample, we present details on reference information, geographic information, geological background, depositional age and the original data. It is a high‐quality dataset for the information on each sandstone sample from different studies which was standardized. The dataset can be used widely, such as for stratigraphic comparison, provenance analysis, exploring the general laws of the source‐to‐sink process and geological engineering.

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Provenance versus weathering control on sediment composition in tropical monsoonal climate (South China) - 2. Sand petrology and heavy minerals

Cited by 32 publications

References 95 publications

Provenance of Neogene sandstones in western Taiwan traced with garnet geochemistry and zircon geochronology

Provenance of Neogene sandstones in western Taiwan traced with garnet geochemistry and zircon geochronology

Low-temperature thermochronology data from the eastern South China Block decipher episodic subduction of the Paleo-Pacific Plate

A global dataset of sandstone detrital composition by Gazzi‐Dickinson method

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