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Detailed mapping of the surface rupture of the 12 February 2014 Yutian M_s7.3 earthquake,Altyn Tagh fault,Xinjiang,China

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Science China Earth Sciences 2021年第1期64卷 127-147页

作者： Zhaode YUAN Jing LIU-ZENG Xue LI Jing XU wenqian yao Longfei HAN Tao LI State Key Laboratory of Earthquake Dynamics Institute of GeologyChina Earthquake AdministrationBeijing 100029China School of Earth System Science Tianjin UniversityTianjin 300072China Key Laboratory of Earthquake Geodesy Institute of SeismologyChina Earthquake AdministrationWuhan 430071China

Large-scale detailed mapping plays a key role in revealing the rupture characteristics and mechanisms of strong *** few studies have been performed on the surface ruptures of large earthquakes in central and western Tibet due to its remote nature and high *** on high-resolution unmanned aerial vehicle(UAV)photography,we mapped the coseismic surface rupture of the 2014 Yutian M_s7.3 *** the western Altyn Tagh fault system,the earthquake produced~37 km of surface rupture along the South Xor Kol fault(southern section S1),Xor Kol fault(central section S2)and Ashikule fault(northern section S3).Section S1 has a 16-km-long surface rupture with an average sinistral offset of 52±25 cm and a maximum offset of~90 cm,while section S3 has a 14.2-km-long surface rupture with an average sinistral offset of 36±21 cm and a maximum offset of~84 cm.A compilation of 5308 cracks yields an average crack width along the southern section of 85±71 cm and a maximum width of~700 cm;the average width along the central section is 39±21 cm,and the maximum width is 243 cm;and the average width along the northern section is 61±44 cm with a maximum of~340 *** addition,the average cumulative opening across rupture zone is 3.4±2.9 m along the southern section,with a maximum of~17 m;4.3±3.6 m along the central section,with a maximum of~13 m;and 1.7±1.6 m along the northern section,with a maximum of~6 ***,the average crack width and cumulative opening decrease towards bends and steps along the fault.A global synthesis of surface rupture distributions corresponding to strike-slip earthquakes indicates that the rupture zone is wider near the complex parts of fault geometries(such as bends,steps and fault bifurcations)than along straight sections,suggesting that the fault geometry has an obvious control on the surface rupture *** widespread cracks at the intersection between the Xor Kol and South Xor Kol faults may indicate that an extensional

关键词： Altyn Tagh fault Yutian earthquake Coseismic surface rupture Gravity-driven slide Coseismic offset Surface rupture width

Paleoseismologic record of earthquakes along the Wuzunxiaoer section of the Altyn Tagh fault and its implication for cascade rupture behavior

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Science China Earth Sciences 2020年第1期63卷 93-107页

作者： Zhaode YUAN Jing LIU-ZENG You ZHOU Zhigang LI Heng WANG wenqian yao Longfei HAN State Key Laboratory of Earthquake Dynamics Institute of GeologyChina Earthquake AdministrationBeijing 100029China Institute of Geomechanics Chinese Academy of Geological SciencesBeijing 100081China School of Earth Sciences and Engineering Sun Yat-Sen UniversityGuangzhou 510275China

The Altyn Tagh fault is one of the few great active strike-slip faults in the world. The recurrence characteristics of paleoearthquakes on this fault are still poorly understood due to the lack of paleoseismic records recorded in high-resolution strata. We document a paleoseismic record in a pull-apart basin along the Wuzunxiaoer section of the central Altyn Tagh *** high-resolution strata recorded abundant seismic deformations and their sedimentary responses. Four earthquakes are identified based on event evidence in the form of open fissures, thickened strata, angular unconformities, and folds. The occurrence times of the four events were constrained using radiocarbon dating. Event W1 occurred at AD1220–1773, events W2 and W3 occurred between 407 and 215 BC, and event W4 occurred slightly earlier at 1608–1462 BC, indicating clustered recurrence characteristics. A comparison of the earthquake records along the Wuzunxiaoer section with other records along the Xorkoli section suggests that both sections ruptured during the most recent event.

关键词： Tibet Altyn Tagh fault Strike-slip fault Paleoearthquake Coseismic offset

Vapor-solid interfacial reaction and polymerization for wafer-scale uniform and ultrathin two-dimensional organic films

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Science China Materials 2022年第6期65卷 1577-1585页

作者： wenqian yao He Yang Qingsong Zhang Longxian Shi Jianzhe Sun Yunlong Guo Lang Jiang Bin Wu Yunqi Liu Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China Sino-Danish Center for Education and Research Sino-Danish CollegeUniversity of Chinese Academy of SciencesBeijing 100049China

Chemical vapor deposition is a conventional synthesis method for growing large-scale and high-quality two-dimensional materials,such as graphene,hexagonal boron nitride,and transition-metal *** organic films,solution-based methods,such as inkjet printing,spin coating,and drop and micro-contact printing,are commonly ***,we demonstrate a general method for growing wafer-scale continuous,uniform,and ultrathin(2-5 nm)organic *** method is based on a copper(Cu)surfacemediated reaction and polymerization of several equivalent bromine(Br)-containingπ-conjugated small molecules(C_(12)S_(3)Br_(6),C_(24)H_(4)O_(2)Br_(2),and C_(24)H_(12)Br_(2)N_(4)),in which local surface-mediated polymerization and internalπ-πinteractions among organic molecules are responsible for the dimension and uniformity control of the thin ***,the growth rate and morphology of thin films were found to be Cu-facet-dependent,and single-crystal Cu(111)surfaces could improve the uniformity of thin *** addition,the number of Br groups and size of organic molecules were critical for crystallinity and thin-film *** method can be used to fabricate heterostructures,such as organic film/graphene,giving room for various functional materials and device applications.

关键词： organic films interface chemical vapor deposition copper catalyst debromination

High-resolution structure-from-motion models covering 160 km-long surface ruptures of the 2021 M_(W)7.4 Madoi earthquake in northern Qinghai-Tibetan Plateau

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Earthquake Research Advances 2022年第2期2卷 38-48页

作者： Jing Liu-Zeng wenqian yao Xiaoli Liu Yanxiu Shao Wenxin Wang Longfei Han Yan Wang Xianyang Zeng Jinyang Li Zijun Wang Zhijun Liu Hongwei Tu Institute of Surface-Earth System Science School of Earth System ScienceTianjin UniversityTianjin300072China State Key Laboratory of Earthquake Dynamics Institute of GeologyChina Earthquake AdministrationBeijing100029China Key Laboratory of Earthquake Geodesy Institute of SeismologyChina Earthquake AdministrationWuhan430071China Earthquake Agency of Qinghai Province Xining810001China

The May 222021 M_(W)7.4 Madoi,Qinghai,China earthquake presented a rare opportunity to apply the modern unmanned aerial vehicle(UAV)photography method in extreme altitude and weather conditions to image surface ruptures and near-field effects of earthquake-related surface deformations in the remote ***-resolution aerial photographs were acquired in the days immediately following the *** complex surface rupture patterns associated with this event were covered comprehensively at 3-6 cm *** effort represents the first time that an earthquake rupture in the interior of the Qinghai-Tibetan Plateau has been fully and systematically captured by such high-resolution imagery,with an unprecedented level of detail,over its entire *** dataset has proven valuable in documenting subtle and transient rupture features,such as the significant mole-tracks and opening fissures,which were ubiquitous coseismically but degraded during the subsequent summer storm *** high-quality imagery also helps to document with high fidelity the fractures of the surface rupture zone(supplements of this paper),the pattern related to how the faults ruptured to the ground surface,and the distribution of off-fault *** combination with other ground-based mapping efforts,the data will be analyzed in the following months to better understand the mechanics of earthquake rupture related to the fault zone rheology,rupture dynamics,and frictional properties along with the fault interface.

关键词： UAV photography Earthquake surface rupture Structure-from-Motion 2021 M_(W)7.4 Madoi earthquake

Large-area superconducting nanowires fabricated based on laser exposure on photoresist

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Nano Research 2024年第9期17卷 8220-8225页

作者： Han Zhou Shangqing Li Yicong Huang wenqian Liu Haohui Zhang yao Wu Wenzhi Zhang Enhua Chen Chaoyun Zhang Xiaoliang Wang Daqian Liu Jianxin Lin Qingdao Innovation and Development Center of Harbin Engineering University Qingdao 266000China College of Intelligent systems and Engineering Harbin Engineering UniversityHarbin 150000China

To realize large-scale micro/nanofabrication process in superconducting devices,the nano laser direct writing(NLDW)as a potential tool was *** this paper,thermal effect induced laser-matter(superconducting film)interaction based on laser direct writing on Nb films and laser exposure on photoresist were investigated by simulation and *** avoid nanoscale thermal effect on superconducting films,large-scale superconducting nanoarrays with the area up to 100μm×100μm based on laser exposure on photoresist were *** with laser direct writing on superconducting films,which lead to the degradation of superconducting performance such as critical current,transition temperature,the superconducting nanoarrays based on laser exposure on photoresist maintain excellent superconducting performance without *** that,by further optimizing the process parameters and the thickness of photoresist,the nanowires with the width down to nanometers are *** with the traditional electron beam and ion beam process,to some extent,the nanowires fabrication process based on NLDW provides a more efficient and cost-effective path for the fabrication of large-area superconducting devices/circuits.

关键词： nano laser direct writing(NLDW) superconducting nanowire arrays superconducting devices light-matter interaction

贸易摩擦冲击下深化“一带一路”贸易合作研究

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国际贸易 2021年第8期 78-88页

作者：刘建姚纹倩陈妙莲江西财经大学国际经贸学院

"一带一路"倡议对加快新时期我国对外开放区域结构转型,推进贸易多元化具有重要意义。基于美国加征关税对我国商品出口的负面冲击,文章将结合与"一带一路"沿线国家间的经贸合作情况,通过测算对美出口商品的需求价格弹性,从"商品—国家"... 详细信息

"一带一路"倡议对加快新时期我国对外开放区域结构转型,推进贸易多元化具有重要意义。基于美国加征关税对我国商品出口的负面冲击,文章将结合与"一带一路"沿线国家间的经贸合作情况,通过测算对美出口商品的需求价格弹性,从"商品—国家"层面对"一带一路"沿线国家承接我国出口转移进行事前潜力分析和事后成效检验,进而梳理出了"一带一路"沿线国家适合承接出口转移的商品—地区组合,为"一带一路"建设中政府开展地区经贸合作协议的重点区域和搭建合作平台的重点行业领域、企业特定商品市场开拓的区域选择等方面提供具体的对策启示。

关键词： “一带一路” 贸易摩擦需求价格弹性

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塔里木盆地色力布亚断裂带变形特征和演化史

石油与天然气地质 2013年第4期34卷 522-527页

作者：姚文倩汤良杰谢大庆杨勇蒋华山张宇航余腾孝曹自成中国石油大学盆地与油藏研究中心北京102249 中国石油大学油气资源与探测国家重点实验室北京102249 中国石化西北油田分公司新疆乌鲁木齐830011

色力布亚断裂带为塔里木盆地麦盖提斜坡与巴楚隆起两个构造单元间的边界断裂带,其构造样式和构造演化与巴楚地区及柯坪地区的形成演化具有一定的相关性。结合最新的钻井、测井以及二维地震资料解释,提出了原来的色力布亚断裂带可分为两... 详细信息

色力布亚断裂带为塔里木盆地麦盖提斜坡与巴楚隆起两个构造单元间的边界断裂带,其构造样式和构造演化与巴楚地区及柯坪地区的形成演化具有一定的相关性。结合最新的钻井、测井以及二维地震资料解释,提出了原来的色力布亚断裂带可分为两个断裂带。剖面上主要表现为基底卷入高角度逆冲挤压断裂样式和正花状走滑断裂样式,与柯坪隆起上的皮羌断裂早期共同构成了皮羌-色力布亚断裂带;而亚松迪断裂属于叠加型逆冲断裂,剖面上表现为浅层倾向南西的盖层滑脱型逆冲断层和深层倾向北东的基底卷入型逆冲断层的相互叠加。平面上呈现出分段性,主要分为北段和南段。断裂带整体表现为深层高角度逆冲断裂和正花状构造样式,而南段向上切入新近系和第四系,且新近系和第四系发生微弱的褶皱变形,并且伴有局部的沿古近系的盖层滑脱。结合巴楚地区和柯坪地区的区域演化,认为色力布亚断裂带的构造演化主要经历了加里东晚期断裂形成阶段、海西晚期(二叠纪晚期)、喜马拉雅早-中期(古近纪—中新世)及喜马拉雅晚期(上新世—第四纪)4个阶段。

关键词：逆冲断裂走滑断裂构造演化色力布亚断裂带塔里木盆地

探槽古地震事件识别标志及其定量化——以活动走滑断裂为例

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地质通报 2019年第6期38卷 977-992页

作者：徐心悦袁兆德邵延秀刘静姚文倩李文巧韩龙飞中国地震局地质研究所北京100029 中国地震灾害防御中心北京100029 中国地震局兰州地震研究所甘肃兰州730000 中国地震局地震预测研究所北京100036

探槽古地震事件的识别取决于对沉积地层中封存的构造变形和沉积响应的解译。基于国内外88篇走滑断裂古地震研究论文,系统总结分析了古地震事件的多种识别标志,主要包括地层的垂向错断、断层向上逐渐尖灭、生长地层、裂缝充填、角度不整... 详细信息

探槽古地震事件的识别取决于对沉积地层中封存的构造变形和沉积响应的解译。基于国内外88篇走滑断裂古地震研究论文,系统总结分析了古地震事件的多种识别标志,主要包括地层的垂向错断、断层向上逐渐尖灭、生长地层、裂缝充填、角度不整合、砂土液化、崩积楔、褶皱等。这些识别标志的质量和数量是判别古地震事件的关键。综合分析认为,地震成因识别标志与非构造成因及蠕滑产生的变形不同,而不同识别标志对地震层位的限定有证据强弱之分。在充分考虑地域和人为因素的影响下,根据识别标志的强弱,对探槽揭露事件的地层证据进行半定量化分析,这在实际工作中不仅可以最大限度地降低误判地震事件的可能性,排除非地震成因变形的影响,也能更客观地反映地震事件的可信度。

关键词：走滑断裂古地震探槽古地震识别标志蠕滑

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走滑断裂古地震探槽选址范例

地质通报 2016年第11期35卷 1807-1828页

作者：袁兆德刘静李占飞邵延秀李志刚王鹏王伟姚文倩中国地震局地质研究所北京100029 中国地震灾害防御中心北京100029 中国地震局兰州地震研究所甘肃兰州730000

探槽选址直接决定了古地震研究的质量,且理想探槽位置具有稀缺性。在收集82篇国内外走滑断裂古地震研究论文的基础上,分析了长序列古地震探槽选址和同震位移探槽选址的构造地貌共性特征。长序列古地震探槽一般布设在断塞塘、拉分盆地、... 详细信息

探槽选址直接决定了古地震研究的质量,且理想探槽位置具有稀缺性。在收集82篇国内外走滑断裂古地震研究论文的基础上,分析了长序列古地震探槽选址和同震位移探槽选址的构造地貌共性特征。长序列古地震探槽一般布设在断塞塘、拉分盆地、小型湖盆、闸门脊汇水一侧及比较平缓的冲洪积扇或大型冲洪积扇末端等地貌位置。这些地貌位置的共同特征是位于连续的、较高沉积速率的沉积环境,且通常富集14C测年物质。在探槽选址的过程中,不仅要对现今沉积环境,也要对其古地理环境进行评价。然而以发掘古地震同震位移为目的的探槽选址则不同,成功的研究点往往较频繁发生侵蚀和下切事件,其中冲沟是最常见的地貌标志。探槽布设以垂直和平行探槽为主,采取逐次掘进或相间平行排列的方式开挖。由于理想探槽位置的稀缺性,所以在这些优质的探槽点一定要开展长期详细地深入研究,最大限度获得古地震事件的长序列,同时也要注意新技术和新方法的应用。

关键词：走滑断裂古地震探槽选址高沉积速率埋藏冲沟同震位移