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Author

Xinghe Yu

Other affiliations: China University of Petroleum
Bio: Xinghe Yu is an academic researcher from China University of Geosciences (Beijing). The author has contributed to research in topics: Sedimentary rock & Sedimentary depositional environment. The author has an hindex of 7, co-authored 22 publications receiving 133 citations. Previous affiliations of Xinghe Yu include China University of Petroleum.

Papers
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TL;DR: In this article, the relative balance of volumetric abundance of sedimentary clasts in non-marine to marine sedimentary records is identified as the most important criterion for classification.
Abstract: Mud clasts are common in non-marine to marine sedimentary records, however, why lack a widely accepted classification scheme? We propose that it is the relative balance of volumetric abundance, sor...

36 citations

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TL;DR: In this article, the authors discussed the controlling factors of sedimentary evolution and palaeoclimate changes in Junggar Basin during the Jurassic period based on lithology, fossils and tectonic setting.

24 citations

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TL;DR: In this article, a paleo-spit is identified from Huangqihai Lake in North China and proposed as a classic example for investigating the influence of lake level changes and storms on the construction of these bodies.

22 citations

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TL;DR: In this article, the authors explore facies and architectural changes from tide-influenced deltas to tide-dominated estuaries in transgressive-regressive cycles, as well as their controlling factors.
Abstract: The East China Sea Shelf Basin was a back-arc basin located at the active continental margin of the western Philippine Sea Plate. This study explores facies and architectural changes from tide-influenced deltas to tide-dominated estuaries in transgressive–regressive cycles, as well as their controlling factors. Cores, wireline well-logs and seismic data allow the sedimentary architectures and models of the depositional systems to be reconstructed. In the Xihu Depression of the East China Sea Shelf Basin, the stratigraphic sequences of the Eocene Pinghu Formation are interpreted to be dominated by repeated phases of deltaic progradation, but with intervening transgressive phases only thinly developed as bioturbated, open-marine shelf deposits. The sequences of the overlying Oligocene Huagang Formation, in contrast, are interpreted as stacked, tide-dominated estuary units, alternating with only poorly preserved regressive half-cycles because of repeated, strong estuary down-cutting. The intervening unconformity in the succession corresponds to the Yuquan tectonic movements, which triggered a change from extensional to compressional settings in the Xihu Depression. In the Late Eocene, extension of the Xihu Depression led to moderately high rates of subsidence (163 m Ma ), and short-term sea-level falls led to multiple phases of deltaic progradations. After the Yuquan Movement, Early Oligocene compression brought overall lower rates of subsidence (110 m Ma ), as well as sea-level rise and stacked estuary development with significant tidal influence in the infill. The interaction of tectonics, sea-level change and sediment supply determined the nature of the depositional systems on the shelf during the entire period, whereas the sedimentary processes were key to reworking and shaping the facies distribution, geomorphology and architectures in the back-arc basin. This research provides an insight into spatial and temporal characterization of deltaic and estuarine systems, contributing to a better understanding of the mechanisms controlling a change in dominant coastline type, despite continued strong tidal influence.

22 citations

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TL;DR: In this article, the authors analyzed the architectural elements of the Yungang Formation and found that during base-level rise the braided fluvial system developed large-scale channel units, bar units, and overbank fills.
Abstract: The Rockcave Member of the Yungang Formation (Middle Jurassic), in the Datong Basin, China, is a multistory sandstone that is interpreted as a sandy braided fluvial deposit based on grain size, lithofacies, and architectural elements. The depositional setting was the mountain front of the Datong Basin, which was tens of kilometers from the shoreline of a lacustrine basin during the Middle Jurassic. The concept of base level is used to analyze the architectural elements of the braided system obtained from photographic mosaics and high-resolution measurement of six outcrop sections from Yungang Rock Cave. Grain size, lithology, and bounding surfaces together with scale and dimension parameters of the sedimentary structures in various architectural elements were used to quantitatively characterize each group of architectural elements and stratigraphic units. Width/thickness values of trough crossbeds were found to be a fundamental component of the hydrodynamic regimes. During base-level rise the braided fluvial system developed large-scale channel units, bar units, and overbank fills. The relatively high proportion of bar units and overbank fills reflect processes operating during positive accommodation. However, during base-level fall there are a high proportion of small-scale channel units that reflect incision-dominated processes such as channels with low W/T values for trough crossbeds and less common overbank fines.

15 citations


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Journal Article

490 citations

Journal Article
Carl L. Amos1

305 citations

01 Jan 2016
TL;DR: The introduction to coastal processes and geomorphology is universally compatible with any devices to read and is available in the authors' digital library an online access to it is set as public so you can get it instantly.
Abstract: introduction to coastal processes and geomorphology is available in our digital library an online access to it is set as public so you can get it instantly. Our books collection hosts in multiple locations, allowing you to get the most less latency time to download any of our books like this one. Kindly say, the introduction to coastal processes and geomorphology is universally compatible with any devices to read.

125 citations

01 Apr 2013
TL;DR: In this article, high-resolution petrographic and heavy-mineral techniques combined with zircon U-Pb geochronology are used to determine the ultimate origin of aeolian sand in Arabian deserts.
Abstract: This study seeks to determine the ultimate origin of aeolian sand in Arabian deserts by high-resolution petrographic and heavy-mineral techniques combined with zircon U–Pb geochronology. Point-counting is used here as the sole method by which unbiased volume percentages of heavy minerals can be obtained. A comprehensive analysis of river and wadi sands from the Red Sea to the Bitlis-Zagros orogen allowed us to characterize all potential sediment sources, and thus to quantitatively constrain provenance of Arabian dune fields. Two main types of aeolian sand can be distinguished. Quartzose sands with very poor heavy-mineral suites including zircon occupy most of the region comprising the Great Nafud and Rub' al-Khali Sand Seas, and are largely recycled from thick Lower Palaeozoic quartzarenites with very minor first-cycle contributions from Precambrian basement, Mesozoic carbonate rocks, or Neogene basalts. Instead, carbonaticlastic sands with richer lithic and heavy-mineral populations characterize coastal dunes bordering the Arabian Gulf from the Jafurah Sand Sea of Saudi Arabia to the United Arab Emirates. The similarity with detritus carried by the axial Tigris–Euphrates system and by transverse rivers draining carbonate rocks of the Zagros indicates that Arabian coastal dunes largely consist of far-travelled sand, deposited on the exposed floor of the Gulf during Pleistocene lowstands and blown inland by dominant Shamal northerly winds. A dataset of detrital zircon U–Pb ages measured on twelve dune samples and two Lower Palaeozoic sandstones yielded fourteen identical age spectra. The age distributions all show a major Neoproterozoic peak corresponding to the Pan-African magmatic and tectonic events by which the Arabian Shield was assembled, with minor late Palaeoproterozoic and Neoarchean peaks. A similar U–Pb signature characterizes also Jafurah dune sands, suggesting that zircons are dominantly derived from interior Arabia, possibly deflated from the Wadi al-Batin fossil alluvial fan or even from Mesozoic sandstones of the Arabian margin accreted to the Cenozoic Zagros orogen. Due to extensive recycling and the fact that zircon is so resistant to weathering and erosion, the U–Pb age signatures are much less powerful a tracer of sedimentary provenance than framework petrography and heavy minerals. Actualistic provenance studies of dune fields at subcontinental scale shed light on the generation and homogenization of aeolian sand, and allow us to trace complex pathways of multistep sediment transport, thus providing crucial independent information for accurate palaeogeographic and palaeoclimatic reconstructions.

109 citations