水管倾斜仪的快速标定方法     

马宝君  高双玲 《地震地磁观测与研究》2009,30(4):83-86

根据以前维护水管倾斜仪的一些经验,总结了一套快速标定水管仪的方法,在牡丹江地震台取得了成功。  相似文献   

Characteristics of coseismic water level changes at Tangshan well for the Wenchuan M_S8.0 earthquake and its larger aftershocks          下载免费PDF全文

Baojun Yin  Li Ma  Huizhong Chen  Jianping Huang  Chaojun Zhang  Wuxing Wang 《地震科学（英文版）》2009,22(2):149-157

Coseismic water level changes which may have been induced by the Wenchuan M_S8.0 earthquake and its 15 larger aftershocks (M_S≥?5.4) have been observed at Tangshan well. We analyze the correlation between coseismic parameters (maximum amplitude, duration, coseismic step and the time when the coseismic reach its maximum amplitude) and earthquake parameters (magnitude, well-epicenter distance and depth), and then compare the time when the coseismic oscillation reaches its maximum amplitude with the seismogram from Douhe seismic station which is about 16.3 km away from Tangshan well. The analysis indicates that magnitude is the main factor influencing the induced coseismic water level changes, and that the well-epicenter distance and depth have less influence. M_S magnitude has the strongest correlation with the coseismic water level changes comparing to M_W and M_L magnitudes. There exists strong correlation between the maximum amplitude, step size and the oscillation duration. The water level oscillation and step are both caused by dynamic strain sourcing from seismic waves. Most of the times when the oscillations reach their maximum amplitudes are between S and Rayleigh waves. The coseismic water level changes are due to the co-effect of seismic waves and hydro-geological environments.  相似文献   

风暴强度指数SSI   总被引：9，自引：2，他引：7  

赵秀英  吴宝俊 《气象》2000,26(5):55-56

近年刊出的强对流天气分析预报文献(例如文献 [1 ]、[2 ])中 ,常常用到风暴强度指数 ( storms severity index,缩写为 SSI )。现根据检索到的部分文献中之解释 ,对其介绍如下。在 2 0世纪 70年代初 ,Miller认为 [3] :在强热力学不稳定和强动力学因子都出现时 ,才有强雷暴发展 (称“经典的 Miller个例”)。然而 ,后续的研究发现 ,这些典型条件不能包含发生的全部强天气。 Maddox等 [4] 、Vigneux等 [5]以及 Turcotte等 [6]指出 :在强热力学条件和弱的动力学条件下以及弱热力学条件和强动力学条件下也可出现强天气。与文献 [4、5、6 ]的思…  相似文献   

Properties and organic activation of ocean clay in the East Pacific     

Huahua Lü 《世界地质(英文版)》2006,9(1)

In order to make use of ocean clay reasonably and excavate its potential applications the properties of ocean clay in Chinese investigating area of the East Pacific have been tested with the chemical analysis, XRFS, ICP/MAS, granulometry and SSA, etc. The results show that the clay sediments of this area are rich in clay minerals, fine granularity, bigger SSA, bigger water absorbability and lower ion changing ability etc. To improve the adaptability of ocean clay and macromolecule materials, using the dry milling method with silane, aluminate, stearic acid coupling agents etc the properties of ocean clay are improved. The effect has been evaluated by testing the water absorbing of the modified ocean clay and their dispersing in paraffin liquid. The result is that KH550 is better than any other active reagents, and the best activation technics is that 1.5% (volume) of KH550 quantity, 20min of milling time. The DTA, XRD, SEM and IR analyses and SSA testing show that the organic activation can not change the mineral structure but can densify the structure of clay, and activation mechanism is chemical covered mainly and chemical combined secondly.  相似文献   

镜泊湖火山监测台网监测能力初步分析     

李英波  马宝君  崔东源 《地震地磁观测与研究》2006,27(5):89-92

介绍了镜泊湖火山台网的组成,并对其监测能力进行了初步估算,结果表明,镜泊湖火山台网的近震监测能力完全满足设计要求,在距台网中心50km范围内,ML0以上地震都能准确定位。  相似文献   

利用Windows XP实现单位业务的远程处理     

马宝君  赵谊  崔东源  李英波  高双玲 《地震地磁观测与研究》2006,27(6):127-130

计算机远程控制是地震台站的未来发展方向,利用Windows XP可以实现单位业务的远程处理,切实提高工作效率。  相似文献   

论海平面变化与层控矿床成因   总被引：3，自引：0，他引：3       下载免费PDF全文

王剑 《地球科学》1997,22(3):285-292

桂北及桂中大瑶山西侧泥盆纪层控型站矿床成因研究表明，矿床形成赋矿盆地的海平面变化密切相关，它们是“层、系、相、位”四位一体主因素地质场作用的结果，这一新的矿床成因新模式可以概括为：区域赋矿层位与层序边界面关系密切，研究区内共划分出７个 序边界面，其中ＳＢ１（Ｉ），ＳＢ３（Ⅲ）及ＳＢ７（Ｉ）是主要的区域性赋 层位；矿体一般产于Ｉ型层序边界面之上，或产于Ⅱ，Ⅲ层序边界面之下；容矿主岩与一定的沉积体系域  相似文献   

大兴安岭中南段成矿控矿构造分析     

牛树银  陈超  张福祥  马宝军  孙爱群 《地质论评》2016,62(S1):323-324

大兴安岭中南段是我国东部重要的成矿集中区之一,是振兴东北的重要资源基地,近年来基础地质研究和地质找矿工作取得了长足的进展（邵济安等,2010;申伍军等,2012）。但是,仍有些问题急需深入研究,例如为什么大兴安岭中南段地区大中型内生金属矿床均集中分布在大兴安岭的主轴地区？为什么同是二叠－白垩系地层,从大兴安岭主轴地区向外变形变质程度却明显不同？是什么构造控制着该区的变形变质作用及其成矿作用？这些问题的解决对指导理论上的重要进展与找矿实践的重大突破有着重要意义。  相似文献   

提高基础地质认识实习教学效果的研究：以南京大学基础地质认识实习为例     

解国爱  王宝军  王博  许宝田  杨爱华  张勇 《高校地质学报》2022,28(3):378-381

地质学是认识和了解地球的学科,基础地质认识实习是地质学教学过程中非常重要的实践环节,是学以致用、理论联系实际、掌握野外地质工作方法、培养学生分析和解决问题能力的重要教学环节。文章以南京大学基础地质认识实习为例,总结了近年来基础地质认识实习过程中出现的主要问题,并分析了原因,提出一些具体的行之有效的解决方法。文章认为野外地质实习过程中需要进行实习基地的筛选、教师队伍的配备、实习内容的制定、实习时间的调整、野外教学效果的评估等方面的教学改革,为野外基础地质实习效果的提高提供了有效途径。  相似文献   

Use of comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry for the characterization of biodegradation and unresolved complex mixtures in petroleum     

Tin C. Tran  Emmanuelle Grosjean  Philip J. Marriott 《Geochimica et cosmochimica acta》2010,74(22):6468-6484

A comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry (GC × GC/TOFMS) method has been developed for separation of a series of petroleum samples using a polar/non-polar column set configuration. Groups of oils were selected to provide samples from the same oil family to assist in comparison of compositional changes during biodegradation. The groups also represented different sources and ages to allow an assessment of the application of GC × GC for the differentiation of oil source, as well as fluid history. The increased resolution and separation afforded by the GC × GC technique provides more complete compositional information on complex biodegraded oil samples than one-dimensional GC, and improves the ability to study biodegradation trends. Among the components identified, it is proposed that alkyl-decahydronaphthalenes constitute a significant contribution to the UCM.  相似文献