沉积作用水文地质期沉积水运移的阶段性

根据沉积水所承受的负载种类，把沉积作用水文地质期分为静水压力阶段，异常压力阶段及压实平衡阶段；讨论了各阶段沉积水的运移特征，沉积物释水过程及孔隙度，透水性的变化特点，对一些传统的水文地质研究方法提出了不同的意见。     

岩体节理形貌的分形维数与摩擦角的关系研究

在土木工程设计和施工中，岩体节理的摩角是一个重要参数，该值的获取既费时又费力。本文首先简要介绍节理形貌的描述方法和分形几何理论，然后将分形理论引人岩体节理摩擦角的研究中，得出了用分形维数表示摩擦角的经验公式。关键词     

先秦测绘史考

介绍先秦时期，包括三皇五帝传说时期，以及夏、商、西周、春秋，占国时代的测绘历史，并对先秦的时间上限选择，测绘史迹从神化到人化的演化，测绘学由潜科学到显科学的转变等问题进行了论述。     

天山巩乃斯河谷融雪期积雪物质平衡初步研究

本文利用１９９４年３月中，下旬在中间科学院天山积雪雪崩研究站（以下简称积雪站）野外观测到的部分资料，对融雪期季节性积雪的物质平衡进行初步分析，同时利用物质平衡方程对积雪日融出量进行计算。     

Application of distinct element method in dynamic analysis of high rock slopes and blocky structures

Comprehensive studies on the dynamic behaviours of a high rock slope of the Three Gorges shiplock and a blocky arch structure are performed using the distinct element method (DEM). Some additional functions have been incorporated into the current DEM code, including a scheme of non-uniform seismic input on the boundaries and an improved triangular mesh generator for deformable elements. Parameters from the field and laboratory tests of the project are used in the analysis of the shiplock slope. Comparisons between the DEM results and the field measurements under the excavation unloading process are made and the good agreement obtained demonstrates the effectiveness of the DEM for predicting the deformation process of the slope. The above examples of the high rock slope and the blocky arch demonstrate that the effects of different earthquake input, input mechanism and parameters on the dynamic response behaviours and collapse pattern of the systems are significant.     

利用近代微震资料研究地震危险性

利用１９７０～１９９３年华北地区ＭＬ≥２．０的微震资料，根据其地震活动特点，从中挑选了一些有代表性的区域，做其Ｇ－Ｒ关系曲线，由该曲线可得到每个震级的年频次，同时，由该区域的历史地震（１３００－１９９３年）可得到较大震级的实际年频次，两者对比，发现具有很好的一致性。因此，当选取合适的区域时，利用近代微资料可以推测出该区域较大地震的活动情况，但同时有两点注意：（１）利用微震资料进行统计时，得到的得一     

Kinematic features of the seismogenic fault of the Tangshan earthquake and the recurrence period of large earthquakes

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广西地洼型古岩溶与成矿

广西中生代岩溶作用有两期:地洼初动和激烈期。这两期岩溶作用形成的地下洞穴,分别为T_3-J_2、K-E的洞穴堆积物——岩溶沉积岩充填或成为目前已不被现代地下水循环所利用的化石岩溶-古岩溶沉积体。地洼初动期岩溶作用,与Cu、zn、Mo、Ag、Sb、Au、U等成矿关系密切,形成古岩溶矿床。成矿物质来源于先成的矿源层、体或矿化、经表生风化浸出,由地表水带入古地下洞穴中,在细菌作用下富集成矿。这种类型矿床,在广西找矿潜力很大。找矿模式可归纳为:先成的矿源→地洼→古叠置型岩溶洼地→地洼初动期岩溶沉积体→亲硫元素和放射性等异常→沿古岩溶方向沉积体中下部→矿体。     

Hydroclimatic fluctuations of the Upper Narmada catchment and its association with break-monsoon days over India

In this paper, hydroclimatic fluctuations of the Upper Narmada catchment (upto Narmadasagar damsite) have been studied by examining the time series (1901–80) of (i) 1-to 10-day annual extreme rainfall; (ii) seasonal total rainfall between May and October; (iii) the precipitation concentration index (PCI); (iv) a modified version of PCI(MPCI); and (v) parameters of the periods contributing specified percentages of rainfall to annual total. Most of these parameters followed the normal distribution and did not show any significant long-term trend. However, some dominant long period oscillations have been noticed in extreme rainfall, seasonal rainfall, PCI and MPCI series. Influence of break-monsoon days over India during July and August on the rainfall activities of the Upper Narmada catchment has also been investigated and salient findings discussed.     

攀西裂谷火成岩组合的矿物学、岩石学特征及其与裂谷演化的关系

攀枝花—西昌地区的火成岩组合是裂谷岩浆作用的主要产物。它们可以分为裂谷期前组合、裂谷早期组合、中期组合和晚期组合。通过火成岩组合的矿物学、岩石学研究,可以推断攀西裂谷演化的历史。