地震活动
- 与 地震活动 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In this paper , the evolution of the macroseismic distribution in time , space and intensity in the area were analysed, and it indicated that the more attention should be paid to the macroseismic risk in Guangdong province in the coming ten years.
本文以东南沿海地区为对象,研究了区内强震活动的时、空、强分布演化特征,综合分析认为,在目前新的地震活跃期中,广东省的强震形势值得注意,尤其在2000年前后,历史上未发生过强震而又具备发生强震条件的地区。通过对构造背景、强震分布、震中迁移等分析提出的广东中部及其近海地区更应注意。
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Focusing on the PGE enrichment mechanism in the basic-ultrabasic intrusions in the Panxi rift, firstly, through the interpretation of TM photograph, data processing of regional geochemical exploration and geophysical prospecting results of gravity, magnetic force and seism, we analyzed the controlling effect of structure and magmatic movement on the PGE mineralization; Secondly, through the study of volcanic apparatus, petrography, measurement of comprehensive geochemical section, isotope tracing and dating of typical PGE-rich melanocratic rock series, we discussed the sources of the PGE-bearing mafic-ultramafic intrusions and basalts, their timing, evolvement sequences, the geochemical processes of magma crystallization and fractionation, and the relationship between magma evolution and structural development; Finally, through the analysis of PGE and chalcophile elements concentrations in the melanocratic rock series and the contrastive study with the Noril''sk magmatic Ni-Cu-PGE sulfide deposit, its related continental flood basalts and Siberia Traps, we discussed PGE mineralization characteristics and its enrichment mechanisms in the melanocratic rock series in the Panxi rift.
本项目首先围绕川西地区主要的PGE矿床及伴生矿的地质环境和有关的地质构造背景,通过TM卫片解译、区域化探和重、磁及地震物探资料分析,总体把握构造及岩浆活动对PGE成矿的控制作用;然后通过对典型富PGE暗色岩套的火山机构地质构造、岩石岩相学、地球化学、同位素定年和示踪等方面的工作,分析本区基性-超基性含矿岩体与喷出岩之间的成岩物质来源、侵入时代及演化序列,研究该区同一岩浆房分异结晶的地球化学过程及其随构造发展的耦合关系;最后通过对暗色岩套PGE地球化学剖面分析以及与俄罗斯诺里尔斯克陆内裂谷溢流型玄武岩中PGE矿化的岩石-构造环境对比研究,探讨该区暗色岩套中的矿化特点和富集部位及其PGE富集机制。
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Subsequently, Yinshan orogenic belt and a good many metallic mineral resources were formed and frequent earthquakes happened.
在这里不仅导致了阴山造山带的形成,而且聚集了诸多的金属矿产资源,地震亦频繁活动。
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Considering near field observation and parameter interp retation of source mechanics, the authors think that the low or higt velocity be lts in Tengchong volcano areas are closely related to the magma activities of th e volcanoes.
根据本文成析成象结果,结合数字化近场地震观测资料及震源力学参数特征解释,分析认为,腾冲火山区地壳不同深度存在的低速带或高速带均与火山作用的岩浆活动有密切关系。
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We use the earthquake situation trichotomy method to deal with the datum of small earthquakes in Huabei region, the result shows, the relativity between group seismic precursor informaitons and large earthquakes is rifeness phenomenon of large area, the shake of large earthquakes are globality, the remote correlation of shake are globality.
采用&震情三分律&的方法处理了华北地区小震活动的数据,分析认为成组震兆的出现与大震之间的遥联性绝不只是一种小区域性的现象,而是一种大范围的普遍现象,大地震是全球性的震动,其震动遥联性的显示,就必然是跨越全球性的。
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God, she explains, left Heaven forever on the day of the San Francisco earthquake in 1906, and since then his Angels—whose vast powers are fueled by constant sexual activity—have been rudderless and alone.
上帝,她解释说,离开天堂永远的一天,旧金山大地震于1906年,从那时起他的使者,其巨大的权力,不断推动性活动,已经群龙无首和独立。
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A: Earthquakes are recorded by a seismographic network.
在这个网络中,每一个地震监测站负责对其地下的活动进行记录。
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By using fault quantitative data (slip rate and paleoearthquake sequence et al.), accompanied by the analysis of regional seismotectonic background, we develop combined models in which the regional characteristics are considered. The annual rate of large earthquakes of typical Potential seismic Zone in Xinjiang region is estimated with our models.
利用活动断裂定量研究资料,结合新疆地区的地震构造环境特征分析,研究了典型潜在震源区大震复发模式,建立了具有区域特征的混合模型,以此评定了新疆地区典型潜在震源区大震的年发生率。
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In this study,with the N-S seismotectonic zone in China as a case,we use satellite infrared information to analyze temporal-spatial variations of associated faulting.The information used is the low-frequency component T- of residual land surface brightness temperature,derived from satellite infrared data.
本文利用卫星热红外信息以南北地震构造带为例,分析了关联断层活动的时空变化,所使用的信息是经过处理的地表亮温残差低频分量TLOW。
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The Es formation was divided into seven third order sequences based on the seismic, drilling and logging data, and plans deposition system plane distribution maps of different time were plotted by dominance phase principle. The lower Es4 is flood-overlake facies mainly; the upper Es4 is meandering stream and braided river delta deposition above the shore shallow lake background; in the Es3 period, the south mainly developed braided river, meandering stream delta, the northeast area main developed meandering stream delta, the middle area mainly developed semi-deep lakean d deep lake sediments. From lower Es3 to upper Es3, the delta scale gradually increased and the depositional area gradually moved to the east and the southeast; the Es2 period was dominated by shore-shallow lake sediments and widely developed braided river delta and delta deposits; the Es1 period was dominated by shore-shallow lake shoal deposits, and in the south developed meandering stream and braided river delta deposits.The lothological traps of the Shahejie group are mainly fluxoturbidite and stratum lateral pinch-out, and its formation and the distribution of the lothological trap were controlled mainly by the basin structure characteristic, palaeogeomorphology and tectonic activity and so on. It had a beneficial geological condition to develope sublacustrine slump turbidite fans in Jishan, Jiangjiadian and Wawu.
利用地震、钻井、测井等资料,将古近系沙河街组划分出7个三级层序,通过剖面沉积学分析,以优势相原则绘制不同时期各亚段沉积体系平面分布图:沙四下总体以洪水-漫湖沉积为特征,沙四上沉积时期是在滨浅湖背景之上发育了曲流河三角洲和辫状河三角洲沉积;沙三段沉积时期南部主要发育辫状河、曲流河三角洲,西北部地区发育曲流河三角洲,中部地区主要为深湖—半深湖沉积;由沙三下至沙三上,西北部三角洲规模逐渐增大,沉积范围逐渐向东、东南方向推进;沙二段沉积时期为滨浅湖沉积,在背景之上广泛发育了辫状河三角洲和三角洲沉积;沙一段以滨浅湖滩坝沉积为特征,南部发育了曲流河三角洲和辫状河三角洲沉积;沉积地层中的岩性圈闭以滑塌浊积岩岩性圈闭和地层侧向尖灭型岩性圈闭为主,其形成和分布主要受盆地结构、沉积古地貌和构造活动强度等因素控制,北部基山、南部江家店和瓦屋具有发育滑塌浊积扇的良好地质条件。
- 推荐网络例句
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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。
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Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。
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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。