检索结果-南通市图书馆

Responses of Stream Geomorphic Indices to Piedmont Fault Activity in the Daqingshan Area of China

Journal of Earth Science 2020年第5期31卷 978-987页

作者： Junyi Wang zhongtai he Institute of Crustal Dynamics China Earthquake AdministrationBeijing 100085China

A recent correlation of stream geomorphic indices to fault activity has revealed that stream geomorphologies in bedrock mountain areas are good records of local fault movements. The Daqingshan piedmont fault is one of the main active faults in the fault system on the northern margin of the hetao Basin and has produced frequent large-scale earthquakes since the Late Pleistocene. In the present study, following the segmentation regime of previous studies, we divide the fault zone into five segments, namely, the Baotou, Tuyouqi West, Tuzuoqi West, Bikeqi, and Hohhot segments, and we discuss the relationship between the drainage basin geomorphology and the piedmont fault activity in the Daqingshan area using 30 m spatial resolution Shuttle Radar Topography Mission(SRTM) digital elevation model(DEM) data. We use a range of geomorphic indices to examine the drainage basins in the Daqingshan area, including the channel steepness index(ksn), slope, hypsometric integral(HI), relief degree of land surface(RDLS), and stream lengthgradient index(SL), extracted with ArcGIS and MATLAB, and we also consider local lithologic and climate aspects. Furthermore, we compare the geomorphic indices with the slip rates of individual segments of the Daqingshan piedmont fault and paleoseismic data. The results show that the geomorphic indices of drainage basins in the Daqingshan area are primarily affected by the piedmont fault activity in the Daqingshan area. The geomorphic indices also demonstrate that piedmont fault activity has been the most intense in the middle segment of this fault system since the Late Quaternary and decreases towards the two sides.

关键词： Daqingshan piedmont stream geomorphic index fault activity slip rate paleoearthquake

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Lacustrine sedimentary responses to earthquakes—soft-sediment deformation structures since late Pleistocene:A review of current understanding

引用

Earthquake Research Advances 2023年第2期3卷 46-53页

作者： Long Guo zhongtai he Linlin Li National Institute of Natural Hazards Ministry of Emergency Management of ChinaBeijingChina Key Laboratory of Earthquake Dynamics of hebei Province Institute of Disaster PreventionHebeiChina Key Laboratory of Crustal Dynamics China Earthquake AdministrationBeijingChina

The traces left by earthquakes in lacustrine sediments are studied to determine the occurrence of ancient earthquakes by identifying seismically induced soft-sediment deformation structures(SSDS).Dating can help reconstruct the relative frequency of *** seismically induced seismites,which carry abundant seismic information from numerous SSDS,is both critical and *** the deformation mechanism of SSDS and learning about the common criteria of seismically induced SSDS improve the identification of earthquake *** better research into SSDS,seismic events can be effectively captured,and temporal constraints can be carried out by 14C dating and optically stimulated luminescence(OSL)dating to identify and date the occurrence of ancient *** present contribution primarily addresses the meaning and mechanism of SSDS and their relationship with earthquake magnitude as well as the common criteria of the SSDS induced by earthquakes.

关键词： Soft-sediment deformation structures Lacustrine sediments Earthquakes Liquefaction

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

New Progress in Paleoearthquake Studies of the East Sertengshan Piedmont Fault, Inner Mongolia, China

引用

Journal of Earth Science 2018年第2期29卷 441-451页

作者： zhongtai he Baoqi Ma Jianyu Long Jinyan Wang Hao Zhang Key Laboratory of Crustal Dynamics Institute of Crustal Dynamics China Earthquake Administration Beijing 100085 China Institute of Earthquake Engineering for Jiangsu Province Nanjing 210014 China

The two eastern segments of the Sertengshan piedmont fault have moved considerably since the Holocene. Several paleoseismic events have occurred along the fault since 30 ka BP. Pa- leoearthquake studies have been advanced by digging new trenches and combining the results with the findings of previous studies. Comprehensive analyses of the trenches revealed that 6 paleoseismic events have occurred on the Kuoluebulong segment since approximately 30 ka BP within the following successive time periods： 19.01-37.56, 18.73, 15.03-15.86, 10.96, 5.77-6.48, and 2.32 ka BP. The analyses also revealed that 6 paleoseismic events have occurred on the Dashetai segment since approximately 30 ka BP, and the successive occurrence times are 29.07, 19.12-28.23, 13.92-15.22, 9.38-9.83, 6.08--8.36, and 3.59 ka BP. The results indicate that quasi-periodic recurrences occurred along the two segments with an approximate 4 000 a mean recurrence interval. The consistent timing of the 6 events between the two segments indicates that the segments might conform to the cascade rupturing model between the two segments. As recorded by a large number of Chinese historical texts, the latest event on the Kuoluebulong segment is the historical M 8.0 earthquake occurred on November U, 7 BC.

关键词： active fault Sertengshan piedmont fault fault segmentation paleoearthquake.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The 2014 Northern Thailand Mw 6.1 Earthquake and its Seismogenic Tectonics

引用

Acta Geologica Sinica(English Edition) 2022年第2期96卷 648-660页

作者： CHANG Zufeng DONG Pin-liang YUAN Renmao HOU Jianjun he zhongtai LI Jianlin CHANG Hao Yunnan Earthquake Agency Kunming 650224China Department of Geography and the Environment University of North TexasDentonTX 76203USA Key Laboratory of Active Tectonics and Volcanism Institute of GeologyChina Earthquake AdministrationBeijing 100029China School of Earth of Space Sciences Peking UniversityBeijing 100871China National Institute of Natural Hazards MEMCBeijing 100085China

On May 5, 2014, an earthquake with a magnitude of Mw 6.1(the largest earthquake in Thailand so far) occurred in Chiang Rai of the Golden Triangle area in northern Thailand. We had an opportunity to conduct field survey immediately after the earthquake. Serious damage to buildings and casualties of lives were observed, and the estimated Maximum Mercalli Intensity(MMI) of the earthquake is Ⅷ(evaluated according to the MMI scale of the Chinese Standard). No long continuous ground ruptures were produced during the earthquake, but in the epicenter(commonly within MMI Ⅷ extent), massive small linear ruptures(usually several tens of meters long) developed and displayed intriguing structural features, offsetting many roads several centimeters left laterally on NE trending cracks or offsetting right laterally on NW trending ones. The focal mechanism solution of earthquake shows that this is a pure strike-slip event, and two nodal planes in NW and NE directions had the same motion senses respectively as those of breakage associated with the earthquake. The long axis of the isoseismals and aftershock distributions are in NE direction,which is consistent with the strike of Luang Namtha fault. The 230-km-long Luang Namtha fault which starts from the border of China and Laos, runs through northern Laos, and terminates at Chiang Rai of Thailand is predominated by left-lateral strike-slip and active in late Quaternary, and two earthquakes over Ms 6.0 occurred along the fault in 1925 and 2007 respectively. This Mw 6.1 earthquake occurred at the southwestern end of the fault. All related features such as evident structural rupturing, elongated orientation of MMI and aftershock distribution,as well as the location of the epicenter,suggest that the Luang Namtha fault may be responsible for the 2014 Northern Thailand earthquake.

关键词： Mw 6.1 earthquake seismogenic tectonics Luang Namtha fault Indochina Block northern Thailand

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Lushan M_S7.0 earthquake:A blind reserve-fault event

引用

Chinese Science Bulletin 2013年第28期58卷 3437-3443页

作者： XU XiWei WEN XueZe HAN ZhuJun CheN GuiHua LI ChuanYou ZheNG WenJun ZHNAG ShiMin REN ZhiQun XU Chong TAN XiBin WEI ZhanYu WANG MingMing REN JunJie he zhongtai LIANG MingJian Key Laboratory of Active Tectonics & Volcano Institute of GeologyChina Earthquake Administration Sichuan Earthquake Administration Institute of Crustal Dynamics China Earthquake Administration

In the epicenter of the Lushan MS7.0 earthquake there are several imbricate active reverse faults lying from northwest to southeast,namely the Gengda-Longdong,Yanjing-Wulong,Shuangshi-Dachuan and Dayi *** field investigations have indicated that no apparent earthquake surface rupture zones were located along these active faults or their adjacent *** brittle compressive ruptures in the cement-covered pavements can be seen in Shuangshi,Taiping,Longxing and Longmen Townships,and these ruptures show that a local crustal shortening occurred in the region during the *** spatial distribution of the relocated aftershocks and focal mechanism solutions,it is inferred that the Lushan earthquake is classified as a typical blind reverse-fault earthquake,and it is advised that the relevant departments should pay great attention to other historically un-ruptured segments along the Longmenshan thrust belt and throughout its adjacent areas.

关键词：地震地表破裂带庐山故障事件储备邻近地区震源机制解地壳缩短

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

湖泊沉积的灾害事件记录与识别方法:研究进展与存在问题

引用

地震科学进展 2024年第1期54卷 110-123页

作者：李营营李林林何仲太应急管理部国家自然灾害防治研究院北京100085 复合链生自然灾害动力学应急管理部重点实验室北京100085 中国地震局地壳动力学重点实验室北京100085 地震动力学国家重点实验室中国地震局地质研究所北京100029

湖泊沉积储存有丰富的信息,常被用于指示气候变化。地震、洪水、滑坡或崩塌等自然灾害事件通常会在湖泊沉积中形成特征性的湖泊沉积扰动,可以使用湖泊地质学方法对其进行分析与识别。本文回顾了湖泊沉积研究历程,对典型自然灾害湖泊沉... 详细信息

湖泊沉积储存有丰富的信息,常被用于指示气候变化。地震、洪水、滑坡或崩塌等自然灾害事件通常会在湖泊沉积中形成特征性的湖泊沉积扰动,可以使用湖泊地质学方法对其进行分析与识别。本文回顾了湖泊沉积研究历程,对典型自然灾害湖泊沉积特征进行系统总结,着重梳理介绍湖泊沉积中自然灾害事件识别方法。其中综合分析法集成了现阶段湖泊事件沉积识别的多种分析手段:(1)根据沉积相与异常事件沉积(EID)之间的关系判定其内源或外源成因;(2)根据对触发因素的排除,确定最可能的触发因素;(3)根据现有的识别标准,验证最可能触发因素的正确性。是目前识别湖泊扰动成因最有效的分析手段。本文还对湖泊沉积灾害事件研究的优势与不足及制约因素进行讨论,湖泊沉积具有连续性、敏感性和高分辨率的特点有助于对灾害事件进行研究,但对湖泊典型自然灾害事件沉积识别标志的建立仍然是制约湖泊异常事件沉积研究的关键。

关键词：湖泊沉积自然灾害地震异常事件沉积

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Investigation of the Yellow River buried fault in the Wuhai basin,northwestern Ordos Block, China

Investigation of the Yellow River buried fault in the Wuhai ...

引用

作者： Kuan Liang zhongtai he Baoqi Ma Qinjian Tian Dewen Li Changbin Sun

Studying the faults in Wuhai Basin, which is located in the northwestern corner of the Ordos Block in China, can not only guide earthquake-safe construction in the region, but also provide a greater understanding of the structure of the Wuhai Basin and the dynamic environment of Northwestern Ordos Block. In this study, we effectively detected the Yellow River buried Fault (YRF), which we believe currently presents a risk to human life in the area. First, we laid out a deep seismic reflection profile (DSRP) in the north of the Wuhai Basin and found that the YRF is composed of two subparallel faults,

关键词： Investigation of the Yellow River buried fault in the Wuhai basin,northwestern Ordos Block

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Enhancement of–OH content on mechanical properties of antiperovskite solid electrolytes

引用

Nano Research 2024年第7期17卷 6139-6146页

作者： Zunqiu Xiao Huaying Wang Ningyuan Cai Yutong Li Kejia Xiang Wei Wei Tao Ye zhongtai Zhang Shitong Wang Zilong Tang State Key Lab of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China College of New Energy Advanced Chemical Engineering and Energy Materials Research CenterChina University of Petroleum(East China)Qingdao 266580China Department of Nuclear Science and Engineering Massachusetts Institute of TechnologyCambridgeMA 02139USA

All-solid-state batteries,renowned for their enhanced safety and high energy density,have garnered broad *** solid electrolytes are highly anticipated for their balanced ***,their high Young’s modulus and inadaptability to volume change during cycling lead to poor contact and eventual battery *** this work,Young’s modulus of Li_(1+x)(OH)_(x)Cl samples is lowered to a level comparable to that of sulfide by regulating the–OH *** the–OH content increases,Young’s modulus of Li_(1+x)(OH)_(x)Cl samples decreases *** may be due to the local aggregation of–OH groups,forming cavities similar to LiOH structure,which reduces the bonding of the *** the premise of high Li-ion conductivity and electrochemical stability,the lowered Young’s modulus improves the contact between the solid electrolyte and the electrodes,forming a strong and stable interfacial layer,thereby improving interfacial and cycling *** symmetrical lithium metal cell shows excellent cycle performance of 600 h,and the assembled LiFePO_(4)|Li_(2.4)(OH)1.4Cl|Li cell shows significantly enhanced cycling endurance with 80%capacity retention after 150 *** work not only emphasizes the crucial importance of Young’s modulus in improving interface issues but also offers innovative approaches to advance the mechanical properties of solid electrolytes.

关键词： mechanical properties -OH content anti-perovskite solid electrolytes Li-ion batteries

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

岱海流域地貌演化及其对断裂活动性的指示意义

引用

第四纪研究 2008年第2期28卷 310-318页

作者：王林何仲太马保起中国地震局地壳应力研究所北京100085

以戴维斯的地貌侵蚀循环学说为基础,运用SRTM-DEM数据、高程-面积分析法和水系分支比研究流域地貌发育。首先运用R ivertools软件平台从DEM数据中提取岱海流域内独立的11个小流域,其中7个位于蛮汉山山前断裂北侧的山地中,另外4个位于盆... 详细信息

以戴维斯的地貌侵蚀循环学说为基础,运用SRTM-DEM数据、高程-面积分析法和水系分支比研究流域地貌发育。首先运用R ivertools软件平台从DEM数据中提取岱海流域内独立的11个小流域,其中7个位于蛮汉山山前断裂北侧的山地中,另外4个位于盆地南缘断裂南侧的山地中;然后计算每一个流域单元的高程-面积积分值和水系分支比。北侧7个小流域积分值为0.567~0.324,从西向东总体上呈现减小的趋势;南侧4个小流域积分值为0.373~0.425,数值之间比较接近。北侧7个小流域水系分支比的为2.079~2.628,从西向东总体上呈现增大的趋势;南侧4个小流域的水系分支比为2.066~2.138,数值之间比较接近。高程-面积分析法和水系分支比分析表明,北侧7个小流域均反映蛮汉山山前断裂的活动性从西向东逐渐减弱的趋势;南侧的4个小流域均反映岱海南缘断裂沿由西向东的活动性没有明显的变化。北侧7个流域高程-面积积分值与水系分支比之间存在明显的负线性相关;两种指标综合成的主因子的变化范围是1.337^-1.699,从西向东呈现出明显降低的趋势。多种分析方法均表明,蛮汉山山前断裂从西向东活动性有减弱的趋势,而岱海南缘断裂从西向东活动性变化不大。

关键词：数字高程模型(DEM) 地貌演化高程-面积分析法水系分支比断裂活动性

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

青藏高原东缘及邻区强震构造:专辑序言

引用

地震科学进展 2024年第1期54卷 1-9页

作者：吴中海何仲太钟宁俞晶星张波中国地质科学院地质力学研究所北京100081 中国地震局地质研究所北京100029 中国地震局兰州地震研究所甘肃兰州730000

青藏高原东缘由多个次级构造单元组成了独特的“多层次挤出-旋转活动构造体系”,是调节高原物质向东挤出的构造转换带,发育了高密度的活动断裂,强震频度高且强度大,而且地质地貌复杂,成为我国地震灾害问题最为突出的地区之一。近年来,... 详细信息

青藏高原东缘由多个次级构造单元组成了独特的“多层次挤出-旋转活动构造体系”,是调节高原物质向东挤出的构造转换带,发育了高密度的活动断裂,强震频度高且强度大,而且地质地貌复杂,成为我国地震灾害问题最为突出的地区之一。近年来,伴随全国地震灾害风险普查、城市活断层探测、地震科学实验场建设、工程场地的地震安全性评价以及重大工程与城镇区的活断层鉴定与地壳稳定性评价等工作的深入开展,高精度遥感、构造地貌、古地震和第四纪年代学等方法的广泛应用,显著提升了青藏高原东缘及邻区强震构造的调查研究程度。为了及时交流这方面的最新研究成果,支撑区域防震减灾及重要工程和基础设施建设的地质安全评价等工作,《地震科学进展》编辑部组织了“青藏高原东缘及邻区强震构造”成果专辑,征集了活断层与地震、甘肃积石山地震以及相关领域的研究综述等代表性学术论文20余篇,本期《青藏高原东缘及邻区强震构造专辑Ⅰ》优选了10篇论文,后续还将推出《青藏高原东缘及邻区强震构造专辑Ⅱ》,希望这些成果可提升对区域强震活动特征与孕震构造机制的理解,并为区域强震危险性分析和有效防范强震灾害风险提供科学依据。

关键词：青藏高原东缘强震构造积石山6.2级地震活动断裂河套—银川裂谷

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：