Mylonitization of Diorites in Jiangshao Fracture Belt,Zheijiang Province,China

Cahracteristics of progressive ductile deformation and remnant igneous fabrics indicate that the foliated diorites in the middle sector of the Jiangshao fracture belt in Zhuji County,Zhejiang,are mylonites deformed from diorites,The mylonitization occurres about 353-370Ma ago under a condition of 425-475℃and 3.8-4.6kb.herelation between the deformation and metamorphism was discussed based on petrographic evidence and mineral chemistry and assemblage,It is suggested that the deformation was responsible for the development of low-grade greenschist-facies metamorphism of mylonitic diorites by introducing fluid phase to accelerate metamorphic reaction and diffusion.     

卫星资料在上海浦东新区热力场分析中的应用

文章利用１９９２年春、夏、秋、冬四季６个时相的ＮＯＡＡ－１１／ＡＶＨＲＲ资料，在与上海区域行政图（边界以乡为单位）进行几何精度纠正的基础上，通过图象增强处理和多通道信息组合，提取上海市区和浦东新区的热力场分布特征，并用直接对比法，建立亮温。气温的相关关系，取得较好的效果。据上海温度分布图象分析，新区的两个热中心与工业群体区、建筑群体区相对应；市区的３个热中心与商业经济密集区及工业群体区相对应。      

TROPICAL ATMOSPHERIC NONLINEAR STEADY RESPONSE SOLUTION UNDER EFFECTS OF PAIRED HEAT SOURCES OF CONTRASTING NATURE*

Based on steady semi-geostrophic model equations,analysis is carried out of the linear and nonlinear modification/response of the tropical atmosphere to the forcing of ideal paired heat sources of contrasting nature.Resuits show that the linear part is dominant in the steady response but the nonlinear modification is quite noticable in the neighborhood of the heat source and between the paired sources,and the barotropic mode and second baroclinic mode play a different role in the modification,with the barotropic(second baroclinic)mode modification depending largely on the Rossby wave self-interaction(the magnitude due to the Kelvin-Rossby wave interaction)between the paired sources.     

BALLOON-BORNE MEASUREMENTS OF AEROSOL VERTICAL DISTRIBUTIONS OVER BEIJING DURING THE SUMMER AND AUTUMN OF 1993

The results of two balloon soundings during the summer and autumn of 1993 from the Xianghe Observation Station are being utilized in a study of the temporal and spatial distribution of the atmospheric aerosols.The balloon,gondola,instrumentation and atmospheric conditions during the observation period are described.The temporal and spatial characteristics of aerosol concentration,size ratio,mixing ratio,and size distribution for both troposphere and strato-sphere are presented and analyzed.     

华南二叠-三叠系的成因地层序列及古特提斯海重建

总结各类沉积盆地的沉积和地层格架，厘定出６类等时性地层界面和５个级别的成因地层单位，在分析地层界面性质和各类成因地层单位沉积构成的基础上，将华南二叠－三叠系划分为７个沉积幕、３个构造沉积幕和２个沉积盆地域、恢复了华南板块二叠－三叠纪的演化过程，论述了板块构造运动，海平面升降和源区侵蚀作用对各级成因地层单位的控制意义，证明了华南的古特提斯海经历了陆表海和伸展裂谷海两个演化阶段。     

浙江杭嘉湖平原区土壤中营养元素丰缺状况的评价

根据杭嘉湖平原区区域地球化学调查的结果,对本区土壤中农作物营养元素含量及有效量特征进行了评价研究。研究结果表明,本区土壤中营养元素除Mo、S含量表现缺乏外,其它元素为足量和丰富水平。不同土壤中营养元素有效量水平存在明显差异。在区域分布规律上,营养元素的含量及有效量随成土母质、成土过程和人类耕作等因素的不同而显示其差异特征。评价研究结果为本区农业生产中的合理区划、科学施肥、合理种植、土壤改良等提供了重要的地球化学依据。     

山东历史地震震害特点之研究

研究了山东省自公元前７０年以来的地震灾害情况，指出山东震灾的主要特点是强度大、频度低、人员伤亡惨重、建筑物破坏严重、地震造成的地面形变类型多种多样。分析了与地震灾害有关的因素，叙述了地震灾害的社会影响。     

南桐二井采区突水动态研究

将南桐煤矿二井的突水动态划分为纯衰减型、波动衰减型、季节波动衰减型、波动稳定型和逐渐增大型５类，它们分别对应于采区与浅层长兴灰岩含水层、蒲河及大气降水的不同连通程度与方式。     

四川省芦山—宝兴地区花岗石石材产出地质特征及其品质

本文扼要阐明四川省芦山－宝兴地区花岗石石材产出地质特征的基础上，重点讨论花岗石石材的品种、规模和质量。