耿马县城烈度异常的地震地质及场地地质条件分析

本文通过耿马县城１９８８年１１月６日７．２级地震的宏观列度考察，结合县城区的地震地质及工程地质环境的综合调查研究表明：耿马县城北坡北西向断层的存在是造成耿马县城高烈度异常的主要原因；县城场地质因素的地震易损性指数的分区性是造成县城区建筑物破坏强度出于灶区性差异的重要因素。     

深井水位降水效率随测层深度的变化规律模拟

统计鲁北平原４井降水效率表明，地质类型相同的深井水位降水效率主要受控于测层埋深；规律性级强，笔者在统计基础上建立了模拟公式，并计算了不同深度测层的降水效率，与实际统计弥合度极好，笔者认为“对类型相同不同深度测层水位降水干扰排除过程中即可利用该式对其效率直接计算，免去了统计，修定的麻烦。     

垂向电导度的测量及在水位异常判别中的作用

为剖析咸水进水位异常，我们对位于唐山地震区附近的双桥１号井，双桥２号井及东台子井进行了多次井内垂向电导度的测量。在１９９１年１０月５日宁河ＭＬ４．６级地震及１９９２年７月２２日宁河ＭＬ４．９级地震前井下水电导度特别是含水层部位水电导度都曾出现过高值异常，这对于判别不异常是由于咸水层压力变化还是外来水的侵入是一种行之有效的简便的监测方法。     

地电阻率短临异常研究

应用相干加强的方法对地电阻率（以下科称ρｓ）资料进行的数学处理，表明了ρｓ短临异常突出明显的结果。为此本文对所出现的异常特征及短临异常的判别与地震预报了研究。     

北京平原区基岩井水位的年动态特征及其成因分析

系统阐述了北京平原区１０口地震地下水位动态观测井及其水位年动态特征，主要分析了降雨与开采对年动态特征的影响，讨论了大同－阳高地震前后某些井水位长期异常的信度     

1989年大同一阳高6．1级地震前山西倾斜形变前兆异常特征

根据山西多年的倾斜形变观测资料，综合研究了大同－阳高６．１级地震前的中长期孕育过程、中短期前兆异常特征、震前微破裂所显示的固体潮畸变临震异常，以及震前山西地震带形变应力场状况。采用“实用化攻关”方法识别异常进行分析得出，震前山西大部分倾斜形变台站存在一定的异常变化的结论。     

苏鲁交界及南黄海地区地震波速比的变化特征

本文主要应用多台波速比和单台波速比的方法，计算了苏鲁交界及南黄海（北纬３５°３５′至３６°００′，东经１１７°００′至１２１°００′）范围内，１９８４到１９９１年７月发生在该区域的１６３次ＭＬ≥１．７地震的波速比值，并对波速比结果进行ｔ检验和模糊数学分析识别。分析结果发现，１９８５年１月至１１月出现了不连续的波速比低值异常时段，模糊数学识别的异常从属函数在这段时间也呈现高值。异常恢复后，１９８７年     

Upper Holocene sea-level changes: Paleogeographic evolution and its impact on coastal archaeological sites and monuments

The paper presents the evolution of the geographic environment imposed by sea-level changes in selected sites of the Aegean Sea region during the Upper Holocene. The changes are due, mainly, to paroxysmic phases of the actual neotectonic evolution and to differential—in time and space—block movements, and emerged or submerged coasts. The reconstitution of these coasts is presented and, in some cases, natural harbor morphology is revealed. The use and evolution of these sites is discussed. Other sites concern coastal or inland ancient settlements or constructions affected by submersion by the sea, by the rise of the groundwater table, or by uplift movements. A general discussion on engineering measures to be applied for protection of the antiquities affected by these geographic changes closes the presentation.     

The Darfur Dome,western Sudan: the product of a subcontinental mantle plume

Field investigations, K-Ar age determinations and chemical data were used to describe the development of an intraplate volcanic province, the Darfur Dome, Sudan. Magmatism started 36 Ma ago at a small subvolcanic complex (Jebel Kussa) in the center of the dome and was active in the same area between 26 and 23 Ma. Two major volcanic fields (Marra Mountains and Tagabo Hills) developed between 16 and 10 Ma. Volcanism started again at 6.8 Ma with a third volcanic field (Meidob Hills) and at 4.3 Ma in the Marra Mountains and with the reactivation of the center. Activity then continued until the late Quaternary. Having started in the center of the Darfur Dome, volcanism moved in 36 Ma 200 km towards the NNE and 100 km SSW No essential difference in the alkaline magma types (basanitic to phonolitic-trachytic, with different amounts of assimilation of crustal material) in the different fields, was observed. Magmatism is thought to have been produced by a rising mantle plume and volcanism was triggered by stress resolution along the Central African Fault Zone.     

我国太平洋深海沉积研究综述

总结了我国对太平洋深海沉积物组成、分布、形成及深海沉积中宇宙尘、海洋沉积通量、铁锰结核的研究成果,指出了在全球变化研究中太平洋深海沉积的研究课题。