Role of sediment in generating contemporaneous, diverse …
Oxygen isotopes provide a widely accepted tool for petrogenetic interpretation of igneous rocks. Li, B, and Mg isotopic systems are promising but not as well understood, …
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Characterisation of transport processes and sedimentary …
Semantic Scholar extracted view of "Characterisation of transport processes and sedimentary deposits by statistical end-member mixing analysis of terrestrial sediments in the Donggi Cona lake catchment, NE Tibetan Plateau" by J. Ijmker et al. ... AI-powered research tool for scientific literature, based at the Allen Institute for AI. Learn …
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Component variation in the late Neoproterozoic to Cambrian sedimentary …
The Tianpeng Formation (SW China) and the Ha Giang Formation (NE Vietnam) were deposited on a passive continental margin in the Cambrian (<527–507 Ma). (2) The late Neoproterozoic sedimentary rocks in the NSC area have an affinity with the Neoproterozoic sedimentary rocks in the southern Yangtze Block (Fanjingshan-Sibao …
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Sedimentary characteristics and implications for …
Semantic Scholar extracted view of "Sedimentary characteristics and implications for hydrocarbon exploration in a retrograding shallow-water delta: an example from the fourth member of the Cretaceous Quantou Formation in the Sanzhao depression, Songliao Basin, NE China" by Quansheng Cai et al. ... Deng and Zhongtiang Hu and …
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Lithium isotopic constraints on the evolution of …
Lithium isotopes represent a promising tool to explore the extent of continental clay contribution to marine siliciclastic sediments, as clay minerals preferentially incorporate …
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Late Paleozoic–Mesozoic tectonic evolution of the …
Tectonic nature of the NE Asian continental margin during the Late Jurassic–Early Cretaceous: constraints from the geochronology and geochemistry of igneous rocks in the NE North China Craton. Xiaoming Zhang Wenliang Xu Chen-Yang Sun Feng Wang Yu Li
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Sedimentary system response to the global sea level …
1. Introduction. The global sea level experienced a substantial elevation and all shelf seas were submerged since the LGM (Fairbanks, 1989, Mix et al., 2001).Glacio-eustatic oscillation is an important based-level to control the sedimentary system in the continental shelf basin (Wilgus, 1988, Zazo et al., 2008, McHugh et al., 2010, Thieler et …
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Early Cretaceous tectonic transition and SW‐ward basin …
Both the K 1 x 1 and K 1 x 2 are dominated by sedimentary sequences of fluvial facies clastic rocks to volcani-clastic and volcanic rocks. Clastic and volcanic rock samples, including three samples from the K 1 x 1, four samples from K 1 x 2, and one mafic dyke sample, were analysed for U–Pb on zircon, to constrain the crystallization …
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Semi-quantifying vertical sedimentary succession and …
Semantic Scholar extracted view of "Semi-quantifying vertical sedimentary succession and microfacies characterization from delta system in a lacustrine basin, Huangqihai Lake, North China" by Wenjun Kang et al. ... Huangqihai Lake, North China}, author={Wenjun Kang and Shunli Li and Xin Shan and Chengpeng Tan}, …
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End-member modeling and sediment trend analysis as tools …
Section snippets Study area. The PEC (25°00′S - 25°35′S and 48°15′W - 48°40′W) is located on the northern coast of the state of Paraná, occupying an area of 552 km 2 (Noernberg et al., 2006). The mean depth of this estuary is 5 m, except for the dredged channel, whose depth reaches 33 m (Marone et al., 2005; Lamour et al., 2004).
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Decoding stratigraphic and structural evolution of the
The SB is located in NE China, bounded by the Zhangguangcai Mountains to the east, the Greater Hinggan Mountains to the west, by the Lesser Hinggan Mountains to the north, and by the northern margin of the North China Craton to the south (Fig. 1).It is a large Mesozoic-Cenozoic continental rift basin (Feng et al., 2018, Meng et al., 2003).The …
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Pore Structure Characterization of Lacustrine Shale and its …
@article{Li2024PoreSC, title={Pore Structure Characterization of Lacustrine Shale and its Coupling Relationship with Sedimentary Structure from the Upper Cretaceous Qingshankou Formation, Southern Songliao Basin, NE China}, author={Lei Li and Zhidong Bao and Zhongcheng Li and Li Chen and Yonggang Zhao and Hongyu Zhao and …
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Component variation in the late Neoproterozoic to Cambrian sedimentary …
The A-CN-K diagram is also an effective tool to constrain the primitive compositions of source rocks (Fig. 9 a; Fedo et al., 1995). As shown in this diagram, most of the sedimentary rocks from the late Neoproterozoic – Cambrian strata plot near the predicted weathering trend starting from granodiorite, with only a few of the …
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Temperature‐dependent Li isotope ratios in Appalachian …
Lithium (Li) concentrations of produced water from unconventional (horizontally drilled and hydraulically fractured shale) and conventional gas wells in Devonian reservoirs in the Appalachian Plateau region of western Pennsylvania range from 0.6 to 17 mmol kg −1, and Li isotope ratios, expressed as in δ 7 Li, range from +8.2 to …
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The sedimentary filling differences of subsags and their …
@article{Li2023TheSF, title={The sedimentary filling differences of subsags and their impacts on oil shale and coal accumulation in a rift lacustrine sag: A case study from the lower cretaceous in the Zhangqiang sag, southern Songliao basin, Northeast China}, author={Yanan Li and Shuai Wang and Zhaorui Ye and Shikun Lin and Yiming …
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Discriminating quartz host rock based on its trace element …
Key elements useful in discriminating quartz classes are Ti, Li, Ge, Al, B, P. • ML models tested on detrital quartz trace element data to retrieve sediment source. • Proposed as a new and powerful tool for sedimentary provenance studies. • A web application interface is made to apply our classifier to unknown quartz data.
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Differential sedimentary evolution of typical aulacogens of …
The Meso-Neoproterozoic strata in the study area is divided into four sedimentary systems and seven types of sedimentary facies: (1) Marine clastic rock sedimentary system : mainly including ...
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Contrasting riverine K and Li isotope signatures during …
The Lancang River (the upper course of the Mekong River) drainage basin is located in the southeastern TP (Fig. 1 a), with an area of 168 000 km 2 and a total river length of about 2 160 km.The headwater is mainly composed of Zaqu (north source) and Angqu (south source) which drain the strath terraces of the plateau (altitudes 3000-4000 …
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Sedimentary processes and deformation styles of the …
The Mohe and Xiufeng Formations scatter over in the Mohe basin (Fig. 1 c; Guo et al., 2017, Liang et al., 2019, Zhang et al., 2019).In this paper, twelve samples of sandstones and two igneous rock samples were analyzed, among which 17MH01, 17MH35, 17MH36-1 and -2, 19MH20, 19MH24, 19MH28, 19MH29 belong to the Mohe Formation; …
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Lithium isotopic constraints on the evolution of …
Lithium isotopes represent a promising tool to explore the extent of continental clay contribu-tion to marine siliciclastic sediments, as clay minerals preferen-tially incorporate …
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Sedimentary and geochemical evidence of Eocene climate …
The northeastern Tibetan Plateau began to grow during the Eocene and it is important to understand the climatic history of Asia during this period of so-called 'doubthouse' conditions. However, despite major advances in the last few decades, the evolutionary history and possible mechanisms of Eocene climate change in the …
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Sedimentary characteristics of Cenozoic strata in central …
Semantic Scholar extracted view of "Sedimentary characteristics of Cenozoic strata in central-southern Ningxia, NW China: Implications for the evolution of the NE Qinghai–Tibetan Plateau" by Zhang Jin et al. ... AI-powered research tool for scientific literature, based at the Allen Institute for AI. Learn More.
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Sedimentary facies control on sandstone reservoir properties…
The Ordos Basin, famous for hosting a wide variety of energy and mineral resources and being one of the most important oil and gas producing areas in China, is a large cratonic multi-cycle basin that developed on the North China platform with a wide distribution area of 25 × 10 4 km 2 (Fig. 1) (Ritts et al., 2004; Dai et al., 2006; Xu et al., …
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Lithium isotopic composition of marine sediments
To understand the role of subducted sediment in arc magmatism and the formation of the continental crust, we have determined the Li isotopic composition of marine sediments …
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4.8: Sedimentary Rocks
4.8: Sedimentary Rocks. Sandstone is one of the common types of sedimentary rocks that form from sediments. There are many other types. Sediments may include: fragments of other rocks that often have been worn down into small pieces, such as sand, silt, or clay. organic materials, or the remains of once-living organisms.
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Cyclostratigraphic analysis of the early Cretaceous laminated
The main principle of Cyclostratigraphy is the interpretation of repetitive patterns in the sedimentary record and its correlation with astronomical cycles with known periodicities (Strasser et al., 2006). Due to the relatively high frequency of such phenomena, Cyclostratigraphy is hold a common tool to increase the resolution of stratigraphic ...
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Age, provenance and geological significance of (meta)–sedimentary …
@article{Sun2022AgePA, title={Age, provenance and geological significance of (meta)–sedimentary rocks in the Yitong–Gongzhuling area, NE China: Constraints from zircon U–Pb geochronology}, author={Shengnan Sun and Zuozhen Han and Zhigang Song}, journal={Journal of Mineralogical and Petrological Sciences}, year={2022}, …
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Sedimentary basin evolution, gravity flows, volcanism, and …
@article{Li2020SedimentaryBE, title={Sedimentary basin evolution, gravity flows, volcanism, and their impacts on the formation of the Lower Cretaceous oil shales in the Chaoyang Basin, northeastern China}, author={Li Xing Li and Zhaojun Liu and Pingchang Sun and Yuanji Li and Simon C. George}, journal={Marine and Petroleum …
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Sedimentary evolution of Neoproterozoic rift basin in …
parts, multiple coarse-to-fi ne sedimentary cycles and parallel bedding were formed; the Muyangtan Formation was about 100 e 400 m thick; in the lower part, gravels in the pebbly sandstone
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Source identification of sedimentary organic carbon in …
The coupling of the C/N ratio with δ 13 C and n-alkane biomarkers has been proved to be an effective tool for revealing OC ... Yuan Li: Formal analysis, Writing ... P ratios, and δ 13 Coc in arctic, temperate, and tropical coastal sediments: tools for characterizing bulk sedimentary organic matter. Mar. Geol., 139 (1997), pp. 123-145. …
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