大同地震地下水群体异常周期分析

利用最大熵谱和傅氏分析方法分析了大同地震地下水群体异常的周期特征。     

Computer Modeling and Simulation of Geofluids： A General Review and Sample Description

Thermodynamic properties of fluids are essential for the understanding of the geochemical behavior of various processes,The paper introduces the most updated computer modeling and simulation methods in the study of thermodynamics of geofluids,inclduing semiempirical models(such as equation of state)and molecular dynamics and Monte Carlo simulation.A well-established semi-empirical model can interpolate and extrapolate experimental data and yield much physicochemical information.Computer modeling may produce“experimental data“ yield much physicochemical information.Computer modeling may produce“experimental data“even under experimentally difficult conditions.They provide important methods for the study of geological fluid systems on the quantitative basis.     

塔里木盆地原油的成因研究

对塔里木盆地原油和生油岩饱和烃进行ＧＣ－Ｃ－ＭＳ和ＧＣ－ＭＳ分析，利用单个正构烷烃碳同位素组成和三环萜烷分布特征进行油源对比，研究了塔里木盆地原油的油源问题；根据寒武—奥陶系富含菌藻有机质生油岩饱和烃色谱分析结果，对塔里木盆地海相原油含蜡较高的成因进行了探讨     

西南极布兰斯菲尔德海峡PC10孔硅藻氧同位素记录及其沉积学意义

对采自西南极布兰斯菲尔德海峡ＰＣ１０孔的５１个硅藻样品进行了氧同位素分析，结果揭示，柱状样氧同位素曲线可划分为５期，记录了区内近１１２．５ｋａ来的沉积，包括了一个冰期／间冰期旋回和一个冰后期。间冰期的沉积速率高于冰期，推测这与间冰期（暖期）筏冰物质及生物硅质源的供应较冰期（冷期）更丰富所致。     

乌鲁木齐遥测地震台网

对乌鲁木齐遥测地震台网的布局、观测项目的配置和技术系统的总体构成等方面进行了全面介绍，突出了系统的特点和先进之处。台网的建成对加强乌鲁木齐和北天山地区的监测预报工作起到了重要的作用，对国内遥测台网的设计建设和技术改进建设和技术改进起到了一定的促进作用。     

乌鲁木齐超长站距无线传输遥测台网实施技术

文中介绍了全无线化的乌鲁木齐遥测地震台网实现超长站距多道地震信息传输勘选设计和实施技术。其中包括网络组成、路由设计、系统参数设置、设备选型、高增益天线、高选择性低噪声放大、低损耗馈电等一系列技术问题。     

Seismic torsional response and design procedures for a class of setback frame buildings

This paper presents results of an analytical study of the inelastic earthquake torsional response of a class of setback frame buildings. In the first part of the study, the modal response spectrum analysis procedure is utilized to determine the yielding strengths of structural members in an idealized but representative setback frame building model. Results are then presented for the inelastic dynamic response of this setback building model subjected to an ensemble of six earthquake ground motions. The results indicate that the modal response spectrum analysis procedure is inadequate for preventing excessive response leading to concentration of damage in vulnerable structural members, such as those in the tower near the notch and those in the base (the part of the structure below the tower) near the perimeter at the opposite side of the tower. The second part of the study develops a modified equivalent static force procedure for strength design of such setback frame buildings. Response analyses show that the proposed procedure results in improved and satisfactory inelastic performance of the selected class of setback frame buildings, having a wide range of realistic configurations.     

考虑吸收时确定震源深度的宏观地震方法

基于对在近场吸收系数A/km~2和源指标几何扩散率n都因实际地震而异的认识,导出了完整宏观地震震源深度公式,获得确定震源深度考虑吸收的宏观地震方法的通解。对此通解及宏观地震震源深度公式各提出三种算法以满足三种需要,经过三个实例,两公式六种算法对比计算结果都很好,并利用所得震源类型结合宏观场探索了震源几何学,为钻探地震直接观察震源的钻孔设计提供依据。     

上海及其邻区楔形断裂系统北翼断裂构造岩显微构造及岩组动力学研究

本文通过对断裂构造岩显微构造特征的研究,进而对石英变形纹及光轴系统测量统计,进行岩组动力学分析,重建了断裂活动时的应力场特征及演化。并对断裂空间分布,断裂性质,运动方式、方向,生成环境及活动时期等作出推论。从而验证和进一步揭示了断裂的宏观构造特征。     

我国中新生代陆相盆地构造-砂体复合油气藏类型划分与分布特征

为了促使油气普查勘探的深入发展,注入新的活力,作者从我国中新生代陆相盆地基本特征,以及油气普查勘探的实践出发,提出构造-砂体复合油气藏的新类型,以期达到抛砖引玉的作用,供同志们讨论。一、构造-砂体复合油气藏类型的提出和含义油气藏的分类是个十分复杂的问题,包括的范围比较广泛,这里所讨论的中新生代陆