山东地下水动态观测井对2007年印尼8.5级地震的响应特征

根据山东地下水动态观测井记录的2007年9月12日印尼苏门答腊南部海域8.5级地震的水震波资料,对不同类型仪器对水震波的响应特征及其影响因素进行了分析,认为影响其记震能力的主要因素是井孔含水层系统的水文地质条件、地质构造环境和观测仪器的类型.     

鲁07井水位对固体潮滞后的处理

本文给出了一种计算考虑滞后影响的井水位固体潮系数的新方法，导出了计算固体潮系数和滞后时间的公式，给出了考虑滞后影响的井水位固体潮校正公式。以鲁07井为例，用该法求出其井水位固体潮系数为16.5mm/10^-8，水位对固体潮响应的滞后时间为0.48小时，与以胶的回归分析方法相比，校正后的水位中误差明显减小，校正效果比较好。     

唐山地震前后地下水位动态图象及其形成演化模式

对唐山地震前后地下水位动态图象的生成方法、时空演化特征及其形成演化模式的研究表明,唐山地震前后地下水位动态图象正负区和异常特征区的时空演化具有明显的规律性和阶段性。负值区的演化具有“收缩—扩展—急速扩展—发震”的特征;异常特征区的演化显示“迁移—扩展—稳定—发震—消失”的特征;滑动变差值显示“增大—减小—发震—急速减小”的变化过程。探讨了地下水位动态图象演化与构造变形、断层运动和上地幔物质上涌的关系,提出了唐山地震地下水位动态图象“场—区—源”的演化模式     

Adriatic coast as a microcosm for global genotoxic marine contamination--a long-term field study

Global changes in the marine environment and the continuing disposal of genotoxic xenobiotics are increasing the importance of environmental pollution monitoring and of biomonitoring programs. Current approaches focus on investigations at regional and local levels in an attempt to precisely define the nature and extent of any potential environmental crisis. We have initiated, for the first time, a long-term biomonitoring program focusing on the Croatian coast of the Adriatic Sea to contribute to a more detailed understanding of marine genotoxic effects using the mussels Mytilus galloprovincialis Lam., collected along the eastern Adriatic coast over a period of five years (1998-2002), as a key test organism. The integrity of DNA in its gill homogenate was examined by the Fast Micromethod. The strand scission factor (SSF) values, as a measure of DNA integrity, DNA damage or incomplete repair have been used for the ranking of sampling sites with respect to significant genotoxic stress due to the influence or effects of genotoxic xenobiotics. The region of Split (Kastela Bay) proved to be the area with the heaviest load of genotoxic agents. The investigation of harmful effects in the ecosystem based on biomonitoring of genetic and other agents, not only on local levels but also on a wider scale, is considered as an important step in marine environmental management.     

走滑断裂的枢纽运动是形成特征地震的一种机制

本文通过特征地震特点与枢纽运动特征的对比分析,得出走滑断裂的枢纽运动是形成特征地震的一种机制,断裂的枢纽轴部是特征地震发生的位置。研究结果表明,富蕴、海原、炉霍和郯城地震断裂皆属特征地震断裂     

Random-Lag Singular Cross-Spectrum Analysis

We compare the distribution of stars of different spectral types, and hence mean age, within the central SMC and find that the asymmetric structures are almost exclusively composed of young main-sequence stars. Because of the relative lack of older stars in these features and the extremely regular distribution of red giant and clump stars in the SMC central body, we conclude that tides alone are not responsible for the irregular appearance of the central SMC. The dominant physical mechanism in determining the current-day appearance of the SMC must be star formation triggered by a hydrodynamic interaction between gaseous components. These results extend the results of population studies (see Gardiner & Hatzidimitriou) inward in radius and also confirm the suggestion of the spheroidal nature of the central SMC based on kinematic arguments (Dopita et al.; Hardy, Suntzeff, & Azzopardi). Finally, we find no evidence in the underlying older stellar population for a "bar" or "outer arm," again supporting our classification of the central SMC as a spheroidal body with highly irregular recent star formation.     

胜利油田及邻近地区断裂活动性研究

本文提出了研究平原地区断裂活动性的步骤和方法,并用这一方法研究了胜利油田及邻近地区断裂活动情况。结果表明,无棣—益都断裂、广饶—齐河断裂和埕子口断裂为第四纪活动断裂。本文还进一步讨论了无棣—益都断裂的活动特征和第四纪活动断裂的标志等问题。