鲁西金矿成因类型、空间分布及其致矿地质异常

根据鲁西金矿的地质特征,划分为３种成因类型：归来庄式,泰山 铜井式。归来庄式金矿的放地质审中生代浅成偏碱性侵入岩;泰山式金 的致矿地质异常是元古宙韧性剪切带;铜井式金矿的放地质异常是中生代浅成钙碱性侵入岩。     

华北晚古生代煤二次生烃的动力学模式

通过对不同成熟度煤样（０．５３－２．１１％）的动力学研究,展示了华北晚古生代煤动力学参数随成熟度由高而低,从低到高的动态演化规律,提出了煤的二次生烃动力学模式,依据该模式,华北晚古生代煤的二次生烃具有一定的阶段性,不同的演化阶段其二次生烃模式不同,初镒生烃以后,当煤的镜质组反射率为０．７－０．９％时,二次生烃高峰提前;若反射率为０．９－１．３％时,二次生烃高峰滞后,而反射率〉１．３％以后,二次生     

10Be--加速器质谱法测定深海多金属结核的生长速率

采用加速器质谱法测定了东太平洋海盆ＣＣ区３个多金属结核和中太平洋海盆北部１个多金属结核中(１０)Ｂｅ的质量活度（比活度,下同）随径向深度的分布。论述了(１０)Ｂｅ－加速器质谱法测定生长速率的步骤。使用该法测得这４个多金属结核的生长速率分别为７．５,２．７,９．６和１．５ｍｍ·Ｍａ(－１),这些数据接近其他作者利用(１０)Ｂｅ法测定的世界各大洋多金属结核的生长速率。还研究了(１０)Ｂｅ法测定的生长速率与多金属结核ｍ(Ｍｎ)／ｍ(Ｆｅ)比值的关系。     

利用蓝晶石制作轻质莫来石耐火砖的研究

本文研究了利用蓝晶石制作轻质莫来石耐火砖的可行性,并探讨了轻质莫来石耐火砖的基本原理及在烧成过程中的物相变化。实验表明,利用中国丰富的蓝晶石原料可以生产出性能优良的莫来石轻质耐火砖。该制品具有隔热性能好,使用温度高,热容小等特点,是间歇式窑炉轻质耐火内衬的理想材料,可替代同类型的进口产品。     

中国东北新生代火山活动与地热资源

本文论述了中国东北新生代火山活动的时—空分布规律和温泉及热流高值区的空间分布特征,揭示了热流高值区和温泉分布区与新生代火山活动、裂谷运动和断裂活动的内在联系,特别强调了活动断裂对温泉和地热高异常区形成的控制作用。提出新生代火山活动区、裂谷盆地、断裂强烈活动区和大地震发生区,以及活化的古板块缝合带等地区,是最有利的地热资源勘探靶区。     

Seismic sedimentology study of the Cretaceous in Chunguang exploration area,northwest of Junggar Basin

Seismic sedimentology is the effective method to depict the spatial and temporal distribution characteristics of sedimentary system. Taking the Chunguang exploration area in the northwest of the Junggar Basin as an example,the sequence boundaries and their distributions were analyzed at first,and the high-resolution sequence framework was thus built. And then the sedimentary types were identified combined with seismic,mud-logging,well-logging,core and analytic data. Under the guidance of seismic sedimentology,the distribution of sedimentary systems were depicted using several techniques including stratal slicing. The results show that: (1)the Cretaceous was divided into four third-order sequences and seven fourth-order sequences in the Chunguang exploration area;(2)four types of sedimentary facies types are identified,including fan delta,braided river delta,hyperpycnal-flow deposits and lake;(3)through the phase adjustment,a good corresponding relationship between seismic amplitude and lithology is established. The frequency decomposition,RGB blending and stratal slicing techniques were carried out,and the spatial-temporal distribution of sedimentary systems in the study area was depicted precisely. During the depositional period of the Hutubi Formation,fan delta was developed in the northwest of the study area,and braided river delta and hyperpycnal-flow deposits were developed in the east,sinuous channels and lateral accretion packages can be observed from the stratal slices. The lake transgression reached the maximum during the depositional period of the Shengjinkou Formation,and it was favorable to development and preservation of hyperpycnal-flow deposits. The inherited fan delta deposits were still developed in the northwest of the study area. Due to the uplift of the northwest area,it could be only developed in the east area with braided deltas and gradually decreased hyperpycnal-flow deposits during the depositional period of the Lianmuqin Formation.     

Higher order Boussinesq equations

A new form of Boussinesq-type equations accurate to the third order are derived in this paper to improve the linear dispersion and nonlinearity characteristics in deeper water. Fourth spatial derivatives in the third order terms of the equations are transformed into second derivatives and present no difficulty in numerical computations. With the increase in accuracy of the equations, the nonlinear and dispersion characteristics of the equations are of one order of magnitude higher accuracy than those of the classical Boussinesq equations. The equations can serve as a fully nonlinear model for shallow water waves. The shoaling property of the equations is also of high accuracy through shallow water to deep water by introducing an extra source term into the second order continuity equation. An approach to increase the accuracy of the nonlinear characteristics of the new equations is introduced. The expression for the vertical distribution of the horizontal velocities is a fourth order polynomial.     

初春南黄海水文特征及环流状况的分析

根据1996年初春中韩黄海水循环动力学合作调查所获资料,分析了南黄海水文特征及其环流状况,并获得了以下几点主要认识:(1)初春南黄海的温、盐分布特征及环流基本形态,与以往所揭示的冬季状况基本相似.然而,本次调查发现,在30m以浅,黄海中部暖水舌轴线比冬季的明显偏东;且出现一范围较小的孤立的相对高温高盐区.在垂向,一种中层冷水和表层逆温跃层现象出现在黄海局部区域.(2)直接测流的结果,不仅部分地印证了由温、盐场所显示的环流基本形态,而且较好地揭示了流场中发生的一些新现象,其中尤其是绕济州岛的流动.(3)黄海暖流水是对马暖流水和陆架水混合而成.而且,它主要是在济州岛西侧水域,从锋带中衍生出来的.     

预报文稿解译与精细化发报程序相结合的应用

采用在原有的预报流程基础上,通过解译预报文稿与精细化发报程序结合应用来制作预报。在实际应用中能够正确快速的把预报文稿进行翻译并入库,缩短了制作预报的时间,提高了预报业务流程的完整性,减轻了预报员的劳动量,同时也避免了重复性工作,为及时准确的发报工作提供了保证。     

Analysis of raft foundation design based on considering influence of superstructure stiffness

The finite element method was used for analysis of raft foundation design in high-rise building. Compared with other conventional methods, this method is more adapted to the practical condition since both superstructure stiffness and soil conditions were considered in calculation. The calculation results by example show that the base reaction is more uniform and the maximum reaction decreases obviously. Accordingly, the raft foundation design is more economic without any loss of security for high-rise building.