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东昆仑西段夏日哈木-苏海图早古生代榴辉岩的发现及意义

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岩石学报 2014年第11期30卷 3345-3356页

作者：祁生胜宋述光史连昌才航加胡继春中国地质大学北京100083 青海省地质调查院西宁810012 青海省青藏高原北部地质过程与矿产资源重点实验室西宁810012 北京大学地质系北京100871

1∶25万区域地质调查在东昆仑西段昆中断裂以北的北昆仑变质基底中发现了呈构造透镜分布的榴辉岩及其退变质的榴闪岩,沿小灶火-苏海图-夏日哈木-拉宁灶火断续延伸长达20km。榴辉岩经历了强烈的退变质作用,大部分已退变为榴闪岩,由峰期... 详细信息

1∶25万区域地质调查在东昆仑西段昆中断裂以北的北昆仑变质基底中发现了呈构造透镜分布的榴辉岩及其退变质的榴闪岩,沿小灶火-苏海图-夏日哈木-拉宁灶火断续延伸长达20km。榴辉岩经历了强烈的退变质作用,大部分已退变为榴闪岩,由峰期变质矿物组合石榴石＋绿辉石＋金红石＋钛铁矿和后期退变矿物组合普通角闪石（绿色）＋斜长石组成,石榴石边缘发育似针状普通角闪石及微粒状斜长石组成的后合成晶结构,形成宽0.15~1cm的＂白眼圈＂结构。石榴石成分为Alm52-53And4.2Spess0.7-1.2Gros21.7-22Pyrope19-20,绿辉石中硬玉分子量30.14mol%~37.7mol%。估算榴辉岩相变质温压条件P≈20kbar、T≈660~700℃,榴闪岩相退变温压条件P≈7kbar、T≈550℃,岩石经历了明显的降温降压过程。榴辉岩中锆石阴极发光图像显示大部分具有扇形分带或＂杉树叶＂结构,17颗锆石Th/U极低,在0.007~0.09之间,其（LA-ICP-MS）U-Pb年龄411.1±1.9Ma代表了榴辉岩相峰期变质年龄,结合区域构造岩浆事件,确定本次高压变质的峰期时代为晚志留-早泥盆世,其形成可能与大规模的陆-陆碰撞事件有关,这一发现为研究东昆仑造山带的构造演化具有重要意义。

关键词：北昆仑变质基底榴辉岩榴闪岩金水口岩群早泥盆世高压变质东昆仑

Economic effect of China's carbon neutrality target under shared socioeconomic pathways

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Science China Earth Sciences 2025年第1期68卷 142-157页

作者： Zemiao LIU Xianjin HUANG Xinxian qi School of Geography and Ocean Science Nanjing University Key Laboratory of Carbon Neutrality and Territory Optimization Ministry of Natural Resources Frontiers Science Center for Critical Earth Material Cycling Nanjing University

Economic feasibility is crucial for achieving the carbon neutrality target. However, current integrated assessments often underestimate the economic impacts of mitigation policies due to the lack of consideration of their economic benefits. This study integrates a warming-labour productivity model with a typical integrated assessment model using shared socioeconomic pathways. It simulates China's economic development and carbon emission levels under both baseline and carbon-neutral policy scenarios, evaluating the economic costs and benefits of emission reduction policies aimed at achieving carbon neutrality. These findings reveal the following:(1) The economic costs of emission reduction policies are projected to peak between 2050 and 2060, ranging from 0.41% to 9.37% of total GDP in the baseline scenario, primarily due to increased energy prices and R&D investments. These costs are expected to decline rapidly after 2070.(2) China's carbon-neutral policies will mitigate global warming, with the economic benefits of mitigation projected to reach 5.65% to 17.24% of China's total GDP by 2100.(3) Lowcarbon scenarios SSP1 and SSP4 could significantly reduce initial economic costs and advance the onset of net economic gains to 2060. This integrated assessment confirms that China's carbon neutrality target offers substantial net economic benefits in the long term. To minimize initial economic costs, efforts should focus on enhancing consumption-side transitions, upgrading lowcarbon technologies, and adopting new energy sources.

关键词： Climate change China Carbon neutrality Economic effects Policy

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基于改进麻雀搜索算法智能车的路径规划

农业装备与车辆工程 2024年第12期62卷 55-59页

作者：祁升升申彩英孙涛辽宁工业大学汽车与交通工程学院

针对传统麻雀搜索算法在种群迭代后期种群多样性差、收敛精度和稳定性差，易陷入局部最优值等问题，提出了一种改进的麻雀搜索算法。首先，在麻雀种群初始化阶段引入ICMIC混沌映射，提高了麻雀种群对于环境的遍历性，解决搜索范围不足... 详细信息

针对传统麻雀搜索算法在种群迭代后期种群多样性差、收敛精度和稳定性差，易陷入局部最优值等问题，提出了一种改进的麻雀搜索算法。首先，在麻雀种群初始化阶段引入ICMIC混沌映射，提高了麻雀种群对于环境的遍历性，解决搜索范围不足的问题；其次在发现者位置更新阶段，引入自适应惯性因子，在算法迭代前期加大对全局的搜索能力，在算法迭代后期专注于局部搜索；改进麻雀种群警戒行为位置更新公式，与正弦余弦算法进行结合，提高算法的收敛精度。最后将改进的麻雀搜索算法应用于智能车的路径规划，经过实验与分析，改进后的麻雀搜索算法在不同的环境地图中平均路径长度分别减小了4.36%和6.72%;寻找最短路径用时分别快了43.57%和44.62%。

关键词：麻雀搜索算法 ICMIC混沌映射正弦余弦算法路径规划

青藏高原东北缘茶卡北山地区印支期高分异花岗岩的发现及找矿意义

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岩石学报 2023年第8期39卷 2402-2428页

作者：王秉璋潘彤王强李五福祁生胜郑英金婷婷刘金恒青海省地质调查院青藏高原北部地质过程与矿产资源重点实验室西宁810012 青海省地质矿产勘查开发局西宁810001 中国科学院广州地球化学研究所同位素地球化学国家重点实验室广州510640 青海省地质调查局西宁810000

青藏高原东北缘茶卡北山地区发现了伟晶岩型Li-Be矿床,然而该地区尚未发现与成矿相关的花岗岩类侵入体,这也制约了成矿规律研究与成矿预测的开展。本文报道了茶卡北山地区新识别的阿斯合塔花岗岩的锆石、独居石U-Pb年龄、全岩地球化学... 详细信息

青藏高原东北缘茶卡北山地区发现了伟晶岩型Li-Be矿床,然而该地区尚未发现与成矿相关的花岗岩类侵入体,这也制约了成矿规律研究与成矿预测的开展。本文报道了茶卡北山地区新识别的阿斯合塔花岗岩的锆石、独居石U-Pb年龄、全岩地球化学、锆石Hf同位素、全岩Nd同位素资料。阿斯合塔岩体由黑云母花岗闪长岩、黑云母花岗岩和含石榴子石花岗岩组成;含石榴子石花岗岩锆石^(206)Pb/^(238)U年龄分散分布,主要介于248~232Ma,独居石^(206)Pb/^(238)U加权平均年龄为243.0±1.1Ma和246.3±1.0Ma。岩石具高SiO_(2)(76.56%~77.70%)和K_(2)O+Na_(2)O(7.81%~8.50%),低Fe_(2)O_(3)T(0.50%~0.73%)和MgO(0.003%~0.072%)的特征,分异指数(DI)为94~96,铝饱和指数(A/CNK)为0.98~1.09,为弱过铝质高钾钙碱性系列,富集K、Rb、Th、U和Pb,强烈亏损Ba、Sr、P、Eu和Ti,高Rb/Sr比值(12~93)、低Zr/Hf比值(11~18)和K/Rb比值(61~93),全岩εNd(t)为-5.53~-5.26,锆石εHf(t)为-5.1~0.2。阿斯合塔岩体主体为高分异Ⅰ型花岗岩,岩浆源于元古代陆壳物质组成下地壳的部分熔融,并有少量幔源镁铁质岩浆混合或新生地壳的加入。综合分析表明,阿斯合塔岩体高分异花岗岩具有形成以Be为主稀有金属矿的可能,该地区Li-Be矿化呈现多期次特征。

关键词：印支期花岗伟晶岩阿斯合塔岩体 Ⅰ-型花岗岩稀有金属 Li-Be矿化锆石、独居石U-Pb年龄 Hf同位素地球化学特征

东昆仑大灶火沟—万宝沟晚二叠世陆缘弧火山岩的发现及意义

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地质通报 2016年第7期35卷 1115-1122页

作者：史连昌常革红祁生胜陈广庭赵明福徐博青海省地质调查局青海西宁810001 青海省青藏高原北部地质过程与矿产资源重点实验室青海西宁810012 青海省地质调查院青海西宁810012

东昆仑地区物质组成复杂、构造演化历史悠久,现保存的建造物质记录了从古元古代以来该区发生的地质事件,在多次洋陆转化中中泥盆世—中三叠世造山阶段尤为重要,同时也是该区岩浆活动和成矿作用的主要时期之一,长期以来缺失二叠纪火山岩... 详细信息

东昆仑地区物质组成复杂、构造演化历史悠久,现保存的建造物质记录了从古元古代以来该区发生的地质事件,在多次洋陆转化中中泥盆世—中三叠世造山阶段尤为重要,同时也是该区岩浆活动和成矿作用的主要时期之一,长期以来缺失二叠纪火山岩记录。最近开展的1∶25万大灶火幅区调工作新发现一套中酸性高钾钙碱性系列火山岩组合,用LA-ICP-MS技术测得次流纹英安岩锆石U-Pb年龄为254.7±0.6Ma。根据剖面研究和区域对比,将这套陆缘弧环境下喷发的火山岩命名为晚二叠世大灶火沟组,主要分布在大灶火沟—万保沟一带,地层严格受昆南断裂控制,出露面积大于74km^2。这一发现不仅为东昆仑岩浆弧长期争论的是否存在二叠纪火山岩提供了明确的证据,而且填补了东昆仑地区晚二叠世火山岩地层的空白。东昆仑地区从二叠纪开始昆南洋向北俯冲,形成了规模巨大的碰撞型花岗岩,大灶火沟组火山岩的形成标志着晚二叠世东昆仑处于区域性挤压阶段。

关键词：东昆仑岩浆弧晚二叠世大灶火沟组挤压环境 LA-ICP-MS锆石U-Pb年龄次流纹英安岩

Practical approach for detecting k-nonseparability of multipartite quantum states

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 32-48页

作者： Jie Guo Jinchuan Hou Xiaofei qi Kan He College of Mathematics Taiyuan University of Technology School of Mathematics and Statistics Shanxi University Key Laboratory of Complex Systems and Data Science of Ministry of Education Shanxi University

The instantaneous detection of entanglement in quantum states poses a significant challenge in the fields of quantum computation and quantum information, and there are no practical methods or tools to complete this task satisfactorily so far. We propose a sufficient and necessary criterion of k-nonseparability for any n-partite finite or infinite dimensional systems, 2 ≤ k ≤ n. This criterion serves as the foundation for a practical scheme designed to detect entanglement and k-nonseparability across multipartite finite-dimensional systems. To exemplify the application of our scheme, we have developed a software tool that facilitates swift and precise identification of entanglement, k-nonseparability, and genuine entanglement within n-qubit systems, specifically tailored for systems with 2 ≤ n ≤ 4.

关键词： multipartite systems entanglement states entanglement witnesses ${\bm~k}$-nonseparability

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混杂岩基本特征与专题地质填图

地质通报 2018年第2期37卷 167-191页

作者：闫臻王宗起付长垒牛漫兰计文化李荣社祁生胜毛晓长中国地质科学院地质研究所北京100037 中国地质科学院矿产资源研究所北京100037 合肥工业大学资源与环境工程学院安徽合肥230009 中国地质调查局西安地质调查中心陕西西安710054 青海省地质调查局青海西宁810001 中国地质调查局北京100037

混杂岩是造山带内最常见的地质体和最基本的大地构造相单元,是由多种地质作用共同形成的可作为一定比例尺(1∶25000或更大)的地质填图单元,并由块体和基质共同构成的内部无序的岩石混杂体。混杂岩的形成和就位构造环境不一致,并非所有... 详细信息

混杂岩是造山带内最常见的地质体和最基本的大地构造相单元,是由多种地质作用共同形成的可作为一定比例尺(1∶25000或更大)的地质填图单元,并由块体和基质共同构成的内部无序的岩石混杂体。混杂岩的形成和就位构造环境不一致,并非所有混杂岩都具有古板块构造格局指示意义。蛇绿混杂岩和增生杂岩可作为古洋盆和汇聚板块边界的直接判别标志,其结构、组成与时空配置共同记录了古大洋板块地层系统发展及大陆地壳侧向与垂向增生历史。以大洋板块地层、海山理想层序和蛇绿岩"彭罗斯"层序模型为指导,专题地质填图是揭示造山带蛇绿混杂岩和增生杂岩结构、组成及其时空配置关系与形成机制的有效手段。这可为洋-陆转换研究及提高造山带结构深化认知程度提供直接证据,同时指导混杂岩相关矿床勘探与找矿预测。

关键词：造山带混杂岩蛇绿混杂岩增生杂岩专题地质填图

Ammonia pyrolysis oxidation excited by nanosecond pulsed discharge:Global/fluid models hybrid solution

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Journal of Energy Chemistry 2025年第1期100卷 385-396页

作者： Mingming Zhang Hanyu Wu qi Chen Jiaxin Yang Bonan Liu School of Mechanical Electronic and Control Engineering Beijing Jiaotong University China University of Petroleum

The kinetic characteristics of plasma-assisted oxidative pyrolysis of ammonia are studied by using the global/fluid models hybrid solution ***,the stable products of plasma-assisted oxidative pyrolysis of ammonia are *** results show that the consumption of NH3/O2and the production of N2/H2change linearly with the increase of voltage,which indicates the decoupling of nonequilibrium molecular excitation and oxidative pyrolysis of ammonia at low ***,the detailed reaction kinetics mechanism of ammonia oxidative pyrolysis stimulated by a nanosecond pulse voltage at low pressure and room temperature is *** on the reaction path analysis,the simplified mechanism is *** detailed and simplified mechanism simulation results are compared with experimental data to verify the accuracy of the simplified ***,based on the simplified mechanism,the fluid model of ammonia oxidative pyrolysis stimulated by the nanosecond pulse plasma is established to study the pre-sheath/sheath behavior and the resultant consumption and formation of key *** results show that the generation,development,and propagation of the pre-sheath have a great influence on the formation and consumption of *** consumption of NH3by the cathode pre-sheath is greater than that by the anode pre-sheath,but the opposite is true for OH and O（1S）.However,within the sheath,almost all reactions do not ***,by changing the parameters of nanosecond pulse power supply voltage,it is found that the electron number density,electron current density,and applied peak voltages are not the direct reasons for the structural changes of the sheath and ***,the discharge interval has little effect on the sheath structure and gas mixture *** research results of this paper not only help to understand the kinetic promotion of non-equilibrium excitation in the process of oxidative pyrolysis but also help to explore th

关键词： Nanosecond pulsed discharge Ammonia Oxidative pyrolysis Fluid model Global model

Visible-light-responsive homologous heterostructure of oxynitrides constructed to boost charge separation and water splitting

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Science China Chemistry 2025年第1期68卷 186-191页

作者： Hai Zou Yunfeng Bao Xueshang Xin Yu qi Tengfeng Xie Fuxiang Zhang State Key Laboratory of Catalysis Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences School of Chemistry and Chemical Engineering Liaoning Normal University College of Chemistry Jilin University

Constructing type II heterostructures represents a widely recognized strategy for enhancing charge separation and photocatalytic efficiency,but it remains challenging to fabricate homologous heterostructures based on visible-light-responsive semiconductors,especially for popularly investigated （oxy）nitrides with low thermal ***,we synthesized a homologous heterostructure （denoted as YTON＿H） based on the oxynitrides of YTaO4-xNyand YTa *** heterostructure exhibits type II band structure alignment and intimate interface achieved through a magnesium （Mg） powder-assisted nitridation *** with widely reported heterologous heterostructures,the as-obtained YTON＿H homologous heterostructure could similarly exhibit enhanced charge separation as well as photocatalytic water splitting performance with respect to its counterparts(YTaO4-xNyand YTaON2).Meanwhile,detailed structural characterizations and spectroscopy analysis have been made to confirm the formation of heterostructure and promotion of spatial charge separation.

关键词： charge separation heterostructure oxynitride photocatalysis visible light