Qian Wang

Southwest Petroleum University

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Guochun Zhao

University of Hong Kong

Wei Cao

First Institute of Oceanography

Haoan Zhao

Northwest University

Sanzhong Li

Ocean University of China

Ian D. Somerville

University College Dublin

Ni Cheng

Northwest University

Kejun Hou

Shantou University

Shengyao Yu

Ocean University of China

Jinbo Bai

Centre National de la Recherche Scientifique

Bradley J. McDonald

Curtin University

Cooperative Institutions

Northwest University

Chinese Academy of Geological Sciences

Ministry of Natural Resources

Chinese Academy of Sciences

China University of Geosciences

China University of Geosciences (Beijing)

Qingdao National Laboratory for Marine Science and Technology

State Key Laboratory of Continental Dynamics

Ocean University of China

China Geological Survey

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Petrogenesis and tectonic implications of two‐stage Cretaceous bimodal volcanism in the coast of Zhejiang Province, South‐east China

Geological Journal (2021)

Minggang Yu Qian Wang Wentao Hong Xilin Zhao Pingli Chu

Shipu volcanic area is located at the east of the Jiangshan‐Shaoxing Fault zone, an important part of the Mesozoic volcanic belt in the coastal south‐east China, which provides an excellent opportunity to study the origin of rarely outcropped and coexisting bimodal volcanic rocks and bimodal dyke swarms. Two stages of bimodal volcanic rocks and dyke swarms yield zircon U–Pb ages of ca. 118–121 Ma and ca. 95–93 Ma, respectively. Both bimodal magmatic rocks show enrichment in LILEs and LREEs, but depletion in HFSEs. Basalts of the early‐stage bimodal volcanism have whole‐rock ( 87 Sr/ 86 Sr) i ratio of 0.71121, ε Nd (t) value of −8.0, and zircon ε Hf (t) values of −19.3 to −11.7, while the contemporaneous rhyolites show whole‐rock ( 87 Sr/ 86 Sr) i ratios of 0.71023 to 0.71106, ε Nd (t) values of −7.5 to −6.6 and zircon ε Hf (t) values of −15.3 to −7.6 with T DM C of 0.96–2.11 Ga. Basaltic dykes of the late‐stage bimodal volcanism have whole‐rock ( 87 Sr/ 86 Sr) i ratios of 0.70898 to 0.70908, ε Nd (t) values of −5.8 to −5.7 and zircon ε Hf (t) values of −10.5 to 2.9, while coexisting rhyolitic dykes display whole‐rock ( 87 Sr/ 86 Sr) i ratios of 0.69618 to 0.71172, ε Nd (t) values of −3.1 to −3.0 and zircon ε Hf (t) values of −9.2 to 11.9 with T DM C of 0.37–1.71 Ga. These features suggest that the early‐stage basalts could be derived from partial melting of an enriched lithospheric mantle metasomatized by slab‐derived fluids, and its corresponding felsic end‐member is the product of partial melting of Proterozoic middle‐lower crust due to underplating of basaltic magmas with minor addition of mantle materials. As for the late‐stage bimodal volcanism, the basaltic dykes are also derived from an enriched mantle similar to the early‐stage counterpart. However, the rhyolitic dykes mainly originated from partial melting of ancient lower crustal materials with abundant input from the depleted mantle. As a whole, two stages of bimodal magmatism in Shipu area provide direct constraints on regional tectonic transition from an extensional arc setting to a back‐arc setting.

Petrogenesis

Fractional crystallization (geology)

10.1002/gj.4271

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Honey Polyphenols Ameliorate DSS‐Induced Ulcerative Colitis via Modulating Gut Microbiota in Rats

Molecular Nutrition & Food Research (2019)

Haoan Zhao Ni Cheng Wenqi Zhou Sinan Chen Qian Wang

Ulcerative colitis (UC) is a multifaceted and recurrent immune disorder that requires long-term potent pharmacological treatment. Honey, as a natural food of nourishment and pharmaceutical value, has been found to defend against colitis.The effects of different constituents in honey are investigated on DSS-induced colitis in rats. Rats are given DSS, sugars, honey, polyphenols, or SASP for a week, with blood and colon samples collected for the biochemical parameters and inflammation-related gene analysis and colon contents for gut microbiota. The results show that pretreatments with honey polyphenols significantly improve SOD, GSH-Px, NO, and MPO levels and reduce DSS-induced colonic apoptosis, the colonic inflammatory cytokines IL-6, TNF-α, and TGF-β1 accompanied by downregulation of IL-1β, IL-6, TNF-α, and IFN-γ gene and upregulation of IκB-α gene. Furthermore, honey polyphenols and SASP show similar microbial community structure shifts and selective enrichment of key species. At the genus level, honey polyphenols significantly reduce the population of Bacteroides, Corynebacterium, and Proteus species. The correlation analysis indicates that colonic gene expression regulated by honey polyphenols is relative to the key species of gut microbiota.Honey polyphenols improve intestinal inflammation and oxidative stress resistance via modulating gut microbiota, which is conducive to revealing the host-microbe interactions.

10.1002/mnfr.201900638

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Fluid identification method and adaptability analysis of ultra-low porosity tight sandstone in Kuqa Depression, Tarim Basin

Maojin Tan Chengwen Xiao Chuang Han Bo Li Wei-Ping Luo

The deep Cretaceous tight sandstone in Kuqa Depression of Tarim foreland basin is an ultra-low porosity and ultra-deep gas-bearing reservoir, which is characterized by small pores, fine throats, and poor connectivity. The wireline logging responses are so complex, and especially, it is difficult to identify fluid types from resistivity logs. Based on acoustic, density, and neutron logs response differences in gas and water layers, effective fluid sensitivity factors are constructed for gas layer identification. From conventional logs, acoustic-neutron porosity difference, density-neutron porosity difference, and triple-porosity ratio are all sensitive parameters to the gas layer. From the NMR logging response mechanism, the density and NMR porosity difference, and T2 geometric mean of the movable fluid are also two sensitive parameters to the gas layer. Based on these parameters, a series of fluid typing charts are constructed and their adaptabilities are analyzed and compared. By contrast, NMR log interpretation is better, and triple-porosity comprehensive method from conventional logs is also effective when NMR logging is not available. Finally, the comprehensive fluid typing strategy by combining some methods for ultra-low porosity tight sandstone is summarized and optimized. This study is another alternative for fluid identification using non-electrical logs.

10.20944/preprints202008.0559.v1

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Geochemistry of Late Permian coals from the Yueliangtian coal deposit, Guizhou: Evidence of sediment source and evaluation on critical elements

The Science of The Total Environment (2022)

Qingfeng Lu Shenjun Qin Wenfeng Wang Qian Wang Shuai Kang

Large igneous province

Felsic

Terrigenous sediment

10.1016/j.scitotenv.2022.159123

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Citations (10)

Early Paleozoic Orocline in the Central China Orogen

Gondwana Research (2018)

Dunling Mu Sanzhong Li Qian Wang Ian D. Somerville Yuhua Wang

Tethys Ocean

Clockwise

10.1016/j.gr.2018.04.019

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Citations (11)

New constraints on the Hadean to Proterozoic history of the Jack Hills belt, Western Australia

Gondwana Research (2017)

Qian Wang Simon A. Wilde

Hadean

Conglomerate

Detritus

10.1016/j.gr.2017.11.008

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Citations (32)

Major variations in vitrinite reflectance and consolidation characteristics within a post-middle Miocene forearc basin, central Japan

Japan Geoscience Union (2016)

Nana Kamiya Yuzuru Yamamoto Qian Wang Yuhei Kurimoto Feng Zhang

Forearc

Vitrinite reflectance

Consolidation

Source

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Mantle Source Components and Magmatic Evolution for the Comei Large Igneous Province: Evidence from the Early Cretaceous Niangzhong Mafic Magmatism in Tethyan Himalaya

Journal of Earth Science (2022)

Yaying Wang Lingsen Zeng Kejun Hou Li‐E Gao Qian Wang

Mantle plume

Large igneous province

10.1007/s12583-021-1464-5

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Effects of honey-extracted polyphenols on serum antioxidant capacity and metabolic phenotype in rats

Food & Function (2019)

Haoan Zhao Ni Cheng Qian Wang Wenqi Zhou Caiyun Liu

It is generally known that honey polyphenols have antioxidant capacity and numerous biological functions. However, their metabolic phenotype after digestion has not been studied. In this study, the effects of honey-extracted polyphenols (HEPs) on serum antioxidant capacity and metabolic phenotype were revealed for the first time. Herein, sixteen male Sprague-Dawley rats were randomly divided into two groups: one group was administered HEPs (200 mg per kilogram body weight dose) and the other group was fed distilled water three times. Then, 1 h after the last gavage, the metabolic profiling of serum was analyzed by UHPLC-Orbitrap-HRMS and multivariate statistical analysis, and the following results were obtained. At first, twenty-five metabolites, including polyphenols, unsaturated fatty acids, and amino acids, were selected as potential biomarkers. Then, metabolic pathway analysis showed that several amino acid metabolism pathways, ubiquinone and other terpenoid-quinone biosynthesis, arachidonic acid metabolism, nicotinate and nicotinamide metabolism, and inositol phosphate metabolism were affected. Association analysis demonstrated that the alteration of metabolites may be responsible for the increased serum antioxidant capacity. This new insight into the effects on the metabolic phenotype after HEP intake prompted the study on the biological functions and emerging health benefits of HEPs.

10.1039/c8fo02138d

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Citations (34)

Late Paleozoic tectonism of the Bogda region in  Chinese North Tianshan: Insights from sedimentary provenance analysis

Qian Wang Guochun Zhao Yigui Han Jinlong Yao

The Chinese North Tianshan (CNTS) extends E-W along the southern part of the Central Asian Orogenic Belt and has undergone complicated accretion-collision processes in the Paleozoic. This study attempts to clarify the late Paleozoic tectonism in the region by investigating the provenance of the Late Paleozoic sedimentary successions from the Bogda Mountain in the eastern CNTS by U-Pb dating and Lu-Hf isotopic analyses of detrital zircons. Detrital zircon U-Pb ages (N=519) from seven samples range from 261 &#177; 4 Ma to 2827 &#177; 32 Ma, with the most prominent age peak at 313 Ma. There are Precambrian detrital zircon ages (~7%) ranged from 694 to 1024 Ma. The youngest age components in each sample yielded weighted mean ages ranging from 272 &#177; 9 Ma to 288 &#177; 5 Ma, representing the maximum depositional ages. These and literature data indicate that some previously-assumed &#8220;Carboniferous&#8221; strata in the Bogda area were deposited in the Early Permian, including the Qijiaojing, Julideneng, Shaleisaierke, Yangbulake, Shamaershayi, Liushugou, Qijiagou, and Aoertu formations. The low maturity of the sandstones, zircon morphology and provenance analyses indicate a proximal sedimentation probably sourced from the East &#173;Junggar Arc and the Harlik-Dananhu Arc in the CNTS. The minor Precambrian detrital zircons are interpreted as recycled materials from the older strata in the Harlik-Dananhu Arc. Zircon &#603;Hf(t) values have increased since ~408 Ma, probably reflecting a tectonic transition from regional compression to extension. This event might correspond to the opening of the Bogda intra-arc/back arc rift basin, possibly resulting from a slab rollback during the northward subduction of the North Tianshan Ocean. A decrease of zircon &#603;Hf(t) values at ~300 Ma was likely caused by the cessation of oceanic subduction and subsequent collision, which implies that the North Tianshan Ocean closed at the end of the Late Carboniferous. This research was financially supported by the Youth Program of Shaanxi Natural Science Foundation (2020JQ-589), the NSFC Projects (41730213, 42072264, 41902229, 41972237) and Hong Kong RGC GRF (17307918).

Detritus

Geochronology

10.5194/egusphere-egu21-16422

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