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Cyclostratigraphy and paleoclimate analysis of the Lingshui Formation in Changchang Sag,Qiongdongnan Basin,China

Energy Geoscience 2024年第1期5卷 108-120页

作者： Haizhang Yang Wu Tang enze xu Shangfeng Zhang Yaning Wang Min xu China National Offshore Oil Research Institute Limited Beijing100028China College of Earth Sciences Yangtze River UniversityWuhanHubei430000China

The Qiongdongnan Basin,located in the sea between Hainan Island and the Xisha Islands,is a faulted Cenozoic basin on the northern continental margin of the South China *** Changchang Sag,situated in the eastern part of the central depressional zone in the deepwater area of the Qiongdongnan Basin,exhibits a near EW-striking morphology and represents an important potential target for oil/gas ***,the age of the interface of the Lingshui Formation remains controversial,which hinders a comprehensive understanding of the tectonic evolution and hydrocarbon accumulation pattern in the Changchang *** study focuses on well A,located in the depositional center of the Changchang Sag,and employs cyclostratigraphic analysis to identify cyclic signals of the Milankovitch cycles recorded in the sedimentary *** analysis of natural gamma logging data from this well reveals the presence of 405 kyr long eccentricity cycles,100 kyr short eccentricity cycles,39.3 kyr obliquity cycles,and 20.58 kyr age precession *** employing astronomical tuning,a“floating”astronomical time scale of the Lingshui Formation spanning 5.483 million years(Myr)is *** top interface of the Oligocene in the International Geological Time Scale 2020(GTS2020),with a geological age of 23.03 Ma,is used as the time anchor to establish a high-precision absolute astronomical age framework for the Lingshui *** results indicate that the bottom interface of the first member of the Lingshui Formation is dated at 23.79 Ma,the bottom interface of the second member is dated at 25.08 Ma,and the bottom interface of the third member is dated at 28.51 ***,the average sedimentation rate during this period is estimated to be 9.261 cm/***,paleoclimate and paleoenvironmental reconstructions were carried out through quantitative analysis of spore and pollen assemblages,as well as foraminifera within the Lingshui *** analyses suggest that

关键词： Milankovitch cycle Paleoclimate Qiongdongnan Basin Cyclostratigraphy Astronomical time scale

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Coupling relationship and genetic mechanisms of shelf-edge delta and deep-water fan source-to-sink:A case study in Paleogene Zhuhai Formation in south subsag of Baiyun Sag,Pearl River Mouth Basin,China

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Petroleum Exploration and Development 2024年第3期51卷 589-603页

作者： TANG Wu XIE Xiaojun XIONG Lianqiao GUO Shuai xu Min xu enze BAI Haiqiang LIU Ziyu CNOOC Research Institute Ltd Beijing 100028China School of Geosciences Yangtze UniversityWuhan 430100China

The coupling relationship between shelf-edge deltas and deep-water fan sand bodies is a hot and cutting-edge field of international sedimentology and deep-water oil and gas *** on the newly acquired high-resolution 3D seismic,logging and core data of Pearl River Mouth Basin(PRMB),this paper dissected the shelf-edge delta to deep-water fan(SEDDF)depositional system in the Oligocene Zhuhai Formation of Paleogene in south subsag of Baiyun Sag,and revealed the complex coupling relationship from the continental shelf edge to deep-water fan sedimentation and its genetic *** results show that during the deposition of the fourth to first members of the Zhuhai Formation,the scale of the SEDDF depositional system in the study area showed a pattern of first increasing and then decreasing,with deep-water fan developed in the third to first members and the largest plane distribution scale developed in the late stage of the second *** on the development of SEDDF depositional system along the source direction,three types of coupling relationships are divided,namely,deltas that are linked downdip to fans,deltas that lack downdip fans and fans that lack updip coeval deltas,with different depositional characteristics and genetic mechanisms.(1)Deltas that are linked downdip to fans:with the development of shelf-edge deltas in the shelf area and deep-water fans in the downdip slope area,and the strong source supply and relative sea level decline are the two key factors which control the development of this type of source-to-sink(S2S).The development of channels on the continental shelf edge is conducive to the formation of this type of S2S system even with weak source supply and high sea level.(2)Deltas that lack downdip fans:with the development of shelf edge deltas in shelf area,while deep water fans are not developed in the downdip slope *** lack of“sources”and“channels”,and fluid transformation are the three main reasons for the formation of t

关键词： shelf-edge delta deep-water fan source-to-sink system Paleogene Zhuhai Formation Baiyun Sag Pearl River Mouth Basin

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陆架边缘三角洲-深水扇源汇耦合关系及成因机制——以珠江口盆地白云南洼古近系珠海组为例

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石油勘探与开发 2024年第3期51卷 513-525页

作者：唐武谢晓军熊连桥郭帅徐敏徐恩泽白海强刘子玉中海油研究总院有限责任公司北京100028 长江大学地球科学学院武汉430100

基于珠江口盆地新采集处理的三维地震资料、钻测井和岩心资料,精细解剖白云南洼古近系渐新统珠海组陆架边缘三角洲-深水扇(简称“洲-扇”),以揭示陆架边缘到深水扇沉积复杂的耦合关系和成因机制。研究结果表明,珠海组四段—一段沉积时期... 详细信息

基于珠江口盆地新采集处理的三维地震资料、钻测井和岩心资料,精细解剖白云南洼古近系渐新统珠海组陆架边缘三角洲-深水扇(简称“洲-扇”),以揭示陆架边缘到深水扇沉积复杂的耦合关系和成因机制。研究结果表明,珠海组四段—一段沉积时期,研究区“洲-扇”沉积体系规模具有先增大后减小的规律,珠海组三段—一段沉积早期深水扇发育,珠海组二段沉积晚期平面分布规模最大。依据顺物源方向洲-扇发育程度的不同,划分出“有洲有扇、有洲无扇、无洲有扇”3种不同类型的洲-扇耦合关系。(1)“有洲有扇”型的陆架区发育陆架边缘三角洲,其下倾方向的陆坡区深水扇发育,强物源供给和相对海平面下降是主控该类型洲-扇系统发育的两大关键因素,而陆架边缘水道的发育有利于在弱物源供给及相对海平面上升时期仍能形成该类型源汇系统。(2)“有洲无扇”型的陆架区发育陆架边缘三角洲,其下倾方向的陆坡区却不发育深水扇,缺“源”、少“渠”和流体改造是形成该类型的3大主要原因。(3)“无洲有扇”型的陆坡区发育深水扇,但溯源其上倾方向陆架区不发育陆架边缘三角洲,陆架边缘的流体改造和陆坡区渠道通畅(水道发育)两者相互耦合共同控制其形成。

关键词：陆架边缘三角洲深水扇源汇系统古近系珠海组白云凹陷珠江口盆地

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Dimensional Gradient Structure of CoSe2@CNTs-MXene Anode Assisted by Ether for High-Capacity,Stable Sodium Storage

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Nano-Micro Letters 2021年第2期13卷 377-390页

作者： enze xu Pengcheng Li Junjie Quan Hanwen Zhu Li Wang Yajing Chang Zhenjie Sun Lei Chen Dabin Yu Yang Jiang School of Materials Science and Engineering Hefei University of TechnologyHefei 230009People’s Republic of China School of Chemistry and Chemical Engineering Hefei University of TechnologyHefei 230009People’s Republic of China State Key Laboratory of Pulsed Power Laser Technology National University of Defense TechnologyHefei 230037People’s Republic of China

Recently,abundant resources,low-cost sodium-ion batteries are deemed to the new-generation battery in the field of largescale energy ***,poor active reaction dynamics,dissolution of intermediates and electrolyte matching problems are significant challenges that need to be ***,dimensional gradient structure of sheet-tube-dots is constructed with CoSe2@*** structure is conducive to fast migration of electrons and ions with the association of ether *** half-cell,CoSe2@CNTs-MXene exhibits high initial coulomb efficiency(81.7%)and excellent cycling performance(400 mAh g^-1 cycling for 200 times in 2 Ag^−1).Phase transformation pathway from crystalline CoSe2-Na2Se with Co and then amorphous CoSe2 in the discharge/charge process is also explored by in situ X-ray *** functional theory study discloses the CoSe2@CNTs-MXene in ether electrolyte system which contributes to stable sodium storage performance owing to the strong adsorption force from hierarchical structure and weak interaction between electrolyte and electrode *** full cell,CoSe2@CNTs-MXene//Na3V2(PO4)3/C full battery can also afford a competitively reversible capacity of 280 mAh g^−1 over 50 ***,profiting from dimensional gradient structure and matched electrolyte of CoSe2@CNTs-MXene hold great application potential for stable sodium storage.

关键词： CoSe2@CNTs-MXene Ether electrolyte In situ XRD DFT calculation Sodium-ion full battery

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Paleontology Knowledge Graph for Data-Driven Discovery

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Journal of Earth Science 2024年第3期35卷 1024-1034页

作者： Yiying Deng Sicun Song Junxuan Fan Mao Luo Le Yao Shaochun Dong Yukun Shi Linna Zhang Yue Wang Haipeng xu Huiqing xu Yingying Zhao Zhaohui Pan Zhangshuai Hou Xiaoming Li Boheng Shen Xinran Chen Shuhan Zhang xuejin Wu Lida Xing Qingqing Liang enze Wang School of Resources and Environmental Engineering Hefei University of TechnologyHefei 230009China State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and PaleoenvironmentChinese Academy of SciencesNanjing 210008China School of Earth Sciences and Engineering and Frontiers Science Center for Critical Earth Material Cycling Nanjing UniversityNanjing 210023China State Key Laboratory for Mineral Deposits Research Nanjing UniversityNanjing 210023China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences Institute of Vertebrate Paleontology and PaleoanthropologyChinese Academy of SciencesBeijing 100044China Centre for Research and Education on Biological Evolution and Environment Nanjing UniversityNanjing 210023China State Key Laboratory of Biogeology and Environmental Geology China University of GeosciencesBeijing 100083China School of the Earth Sciences and Resources China University of GeosciencesBeijing 100083China

A knowledge graph(KG)is a knowledge base that integrates and represents data based on a graph-structured data model or *** have made efforts to construct geosciencerelated KGs to overcome semantic heterogeneity and facilitate knowledge representation,data integration,and text ***,there is currently no comprehensive paleontology KG or data-driven discovery based on *** this study,we constructed a two-layer model to represent the ordinal hierarchical structure of the paleontology KG following a top-down construction *** ontology containing 19365 concepts has been defined up to *** this basis,we derived the synonymy list based on the paleontology KG and designed corresponding online functions in the OneStratigraphy database to showcase the use of the KG in paleontological research.

关键词： paleontology knowledge graph ontology synonymy list OneStratigraphy big data ge-ology.

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陆丰凹陷韩江组旋回地层学分析及天文年代标尺的建立

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海洋地质前沿 2022年第4期38卷 42-52页

作者：朱春霞张尚锋王雅宁徐恩泽长江大学地球科学学院武汉430100 长江大学油气资源与勘探技术教育部重点实验室湖北荆州434023

珠江口盆地为新生代典型的海相盆地,也是我国重要的海上油气生产基地。前期已有很多学者对珠江口盆地的地层划分与对比开展了研究,但研究的精度不够。为了提高珠江口盆地陆丰凹陷韩江组地层划分与对比的精度,选择珠江口盆地陆丰凹陷A、... 详细信息

珠江口盆地为新生代典型的海相盆地,也是我国重要的海上油气生产基地。前期已有很多学者对珠江口盆地的地层划分与对比开展了研究,但研究的精度不够。为了提高珠江口盆地陆丰凹陷韩江组地层划分与对比的精度,选择珠江口盆地陆丰凹陷A、B井韩江组的自然伽马数据序列作为古气候替代性指标,使用频谱分析、滤波等方法进行旋回地层学分析。通过深度域频谱分析和小波分析认为,该套地层中保存了米兰科维奇旋回信号,且主要受405 ka长偏心率周期的影响。利用稳定的405 ka长偏心率周期进行天文调谐,结合古生物地层年代框架,建立起陆丰凹陷“绝对”天文年代标尺;结合碳氧同位素变化曲线,估算出2次碳同位素负漂移和1次碳同位素正向偏移事件的持续时间;利用天文旋回周期计算出陆丰凹陷韩江组的沉积速率,发现沉积速率的变化与海平面变化具有相关性。

关键词：珠江口盆地陆丰凹陷韩江组米兰科维奇旋回频谱分析天文年代标尺沉积速率

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创新资源集聚、区域协同创新与京津冀高质量发展

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科学学与科学技术管理 2024年第2期45卷 35-50页

作者：傅利平张恩泽黄旭天津大学公共管理学院天津300072 南开大学经济学院天津300071

创新资源集聚与区域协同创新的良性互动是实现京津冀高质量发展的必由之路。在梳理京津冀地区创新资源集聚与协同创新的基本事实特征的基础上,阐述二者协同赋能京津冀高质量发展的理论逻辑,并利用2014—2020年京津冀三地城市面板数据,... 详细信息

创新资源集聚与区域协同创新的良性互动是实现京津冀高质量发展的必由之路。在梳理京津冀地区创新资源集聚与协同创新的基本事实特征的基础上,阐述二者协同赋能京津冀高质量发展的理论逻辑,并利用2014—2020年京津冀三地城市面板数据,运用空间联立方程模型、空间误差模型进行实证检验。研究发现:京津冀地区的创新资源集聚程度、协同创新程度与高质量发展水平整体上均呈现出正向空间集聚特征,创新资源集聚、区域协同创新以及二者的交互效应显著促进了京津冀高质量发展。但同时,创新资源集聚、区域协同创新存在负向空间溢出效应,制约了京津冀高质量发展水平的进一步提升。未来,京津冀应着眼于协同发展的战略要求,全面促进创新要素共建共享,积极做强科技创新支撑平台,拓展协同创新的新空间,协力培育世界一流创新生态,打造中国式现代化建设的先行区、示范区。

关键词：京津冀高质量发展创新资源集聚区域协同创新

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锌电积用Pb-Ag阳极MnO_(2)镀膜的电化学性能

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中国有色金属学报 2024年第2期34卷 490-502页

作者：王恩泽郭孟伟邵伟春高明远徐存英张启波昆明理工大学冶金与能源工程学院昆明650093 昆明理工大学省部共建复杂有色金属资源清洁利用国家重点实验室昆明650093

锌电积用Pb-Ag阳极存在析氧过电位高、表面铅易电化学氧化溶解,造成阴极电锌品质低等突出问题,如何减少阳极的溶铅污染并提升其催化析氧活性、降低反应能耗,成为亟待解决的难题。本文在Pb-Ag阳极表面电沉积一层均匀、致密的MnO_(2)薄膜... 详细信息

锌电积用Pb-Ag阳极存在析氧过电位高、表面铅易电化学氧化溶解,造成阴极电锌品质低等突出问题,如何减少阳极的溶铅污染并提升其催化析氧活性、降低反应能耗,成为亟待解决的难题。本文在Pb-Ag阳极表面电沉积一层均匀、致密的MnO_(2)薄膜,采用SEM、XRD和ICP等对MnO_(2)催化层的表面微观形貌、晶体结构和溶液含铅量进行分析;采用CV、LSV、EIS和Tafel等对Pb-Ag/MnO_(2)阳极的析氧催化活性和耐腐蚀性能进行分析。结果表明:在MnSO_(4)-H_(2)SO_(4)溶液中,当循环速率为200 mL/min、温度为80℃时,以4 mA/cm^(2)电沉积120 min制备的Pb-Ag/MnO_(2)镀膜电极具有最佳的催化析氧和耐蚀性能;PbAg阳极经优化镀膜后,50 mA/cm^(2)时其析氧过电位由936 mV降低为648 mV,腐蚀电流密度由7.03μA/cm^(2)降低至0.66μA/cm^(2);相较于Pb-Ag阳极,基于Pb-Ag/MnO_(2)阳极的15 d长周期电锌体系中溶铅量由0.61 mg/L降至0.29 mg/L。

关键词：锌电积 Pb-Ag阳极 MnO_(2)镀膜催化析氧耐蚀性能

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NiO@Ni nanoparticles embedded in N-doped carbon for efficient photothermal CO_(2) methanation coupled with H_(2)O splitting

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Nano Research 2024年第4期17卷 2283-2290页

作者： Yun Zhou Peng Zheng Fang Wang Fangna Gu Wenqing xu Qinyang Lu Tingyu Zhu Ziyi Zhong Guangwen xu Fabing Su Institute of Process Engineering Chinese Academy of SciencesBeijing 100190China Key Laboratory on Resources Chemicals and Materials of Ministry of Education Shenyang University of Chemical TechnologyShenyang 110142China Institute of Industrial Chemistry and Energy Technology Shenyang University of Chemical TechnologyShenyang 110142China School of Ecology and Environment Beijing Technology and Business UniversityBeijing 100048China Beijing Key Laboratory of enze Biomass Fine Chemicals College of New Materials and Chemical EngineeringBeijing Institute of Petrochemical TechnologyBeijing 102617China International School of Beijing 10 An Hua Street Shunyi DistrictBeijing 100048China Department of Chemical Engineering Guangdong Technion Israel Institute of Technology(GTIIT)Shantou 515063China Technion Israel Institute of Technology(IIT) Haifa32000Israel

Photothermal carbon dioxide(CO_(2))methanation has attracted increasing interest in solar fuel synthesis,which employs the advantages of photocatalytic H_(2)O splitting as a hydrogen source and photothermal catalytic CO_(2) *** work prepared three-dimensional(3D)honeycomb N-doped carbon(NC)loaded with core–shell NiO@Ni nanoparticles generated in situ at 500℃(NiO@Ni/NC-500).Under the photothermal catalysis(200℃,1.5 W/cm^(2)),the CH_(4) evolution rate of NiO@Ni/NC-500 reached 5.5 mmol/(g·h),which is much higher than that of the photocatalysis(0.8 mmol/(g·h))and the thermal catalysis(3.7 mmol/(g·h)).It is found that the generated localized surface plasmon resonance enhances the injection of hot electrons from Ni to NiO,while thermal heating accelerates the thermal motion of radicals,thus generating a strong photo-thermal synergistic effect on the *** CO_(2) reduction to CH_(4) follows the*OCH *** work demonstrates the synergistic effect of NiO@Ni and NC can enhance the catalytic performance of photothermal CO_(2) reduction reaction coupled with water splitting reaction.

关键词： Ni localized surface plasmon resonance photothermal methanation

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基于压缩残差网络的雷达辐射源识别方法研究

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强激光与粒子束 2024年第4期36卷 113-122页

作者：郭恩泽刘正堂崔博刘国彬史航宇蒋旭中国人民解放军63893部队河南洛阳471003 中国人民解放军63896部队河南洛阳471003

针对低信噪比条件下,现有的雷达辐射源信号识别方法存在识别正确率低、时效性差的问题,提出了一种基于压缩残差网络的雷达辐射源信号识别方法。首先,利用Choi-Williams分布的时频分析方法将时域信号转换为二维时频图像;然后,根据应用场... 详细信息

针对低信噪比条件下,现有的雷达辐射源信号识别方法存在识别正确率低、时效性差的问题,提出了一种基于压缩残差网络的雷达辐射源信号识别方法。首先,利用Choi-Williams分布的时频分析方法将时域信号转换为二维时频图像;然后,根据应用场景特点,选择卷积神经网络(Convolutional Neural Networks,CNN)“压缩”范围;最后,构建压缩残差网络来自动提取图像特征并完成分类。仿真实验结果表明,在同等体量的设计下,与当前较为常用的标准CNN以及ResNet模型相比,所提模型能够降低信号识别运行时间约88%,在信噪比为-14 dB条件下对14种雷达辐射源信号的平均识别率高约5%。提供了一种高效的雷达辐射源信号智能识别方法,具有潜在的工程应用前景。

关键词：压缩残差网络时频分析雷达辐射源识别深度学习扩张卷积

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