地质微生物学     

韦斯特  J  汤葵联 《国土资源信息化》1994,(1):35-36

  相似文献   

越南的煤炭     

查德.  J  李树枝 《国土资源信息化》1994,(5):4-6

  相似文献   

黑色页岩中铂族元素与有机质的组合   总被引：1，自引：0，他引：1  

帕沙.  J  刘家军 《国土资源信息化》1994,(6):27-28

  相似文献   

Pressure Solution of Sulphides in Some Massive Sulphide Zinc—lead Deposits of Western Canada：Its Significance in Mobilization of Ore—forming Materials   总被引：2，自引：0，他引：2  

顾连兴  ANDK.R.MCCLAY 《中国地球化学学报》1994,13(2):132-141

Pressure solution is a common phenomenon in massive sulphide zinc-lead deposits of western Canada and may have been an important factor leading to the mobilization of ore-forming materials during diagenesis, deformation and metamorphism of sedimentary ores.The control of ductile shear zones over gold mineralization could be explained in view of pressure solution of gold-bearing miner-als under shearing stress and the tesultant mobilization of this metal.  相似文献   

RETRIEVAL OF HORIZONTAL WIND PERTURBATION FIELDS FROM SIMULATED SINGLE DOPPLER RADAR OBSERVATIONS^*          下载免费PDF全文

Gu Songshan  I. Zawadzki  S. Laroche 《Acta Meteorologica Sinica》1994,8(1):89-108

The application of the single Doppler radar dataset analysis is usually confined to the assumption that the actual wind is linearly distributed or uniform locally.Following some dynamic features of convective weather,a conceptual model of moderate complexity is constructed,wherewith a horizontal wind perturbation field is retrieved directly from the single Doppler radar measurements.The numerical experiments are based on a 3-D cloud model-generated convective cell,whose radial velocity component is taken as the radar observations that are put into the closed equations based on the conceptual model to retrieve the horizontal wind perturbation field.After the initial field is properly treated,the retrieval equation is solved in terms of the 2-D FFT technique and the sensitivity to noise is examined.Finally,contrast analysis is done of the retrieved and the cloud model output wind fields,indicating the usefulness of the approach proposed in this paper.  相似文献   

斯塔拉和陶夫坦科条带状含铁建造中金—铜矿化—澳大利亚艾萨山元古…     

David.  G 高世伦 《黑龙江地质情报》1994,(1):50-55

  相似文献   

挤压造山带中地壳地震反射型式的构造模式     

Quinl.  G 郭华 《地质科学译丛》1994,11(3):13-17

  相似文献   

景观水平上农业系统与生态系统之间的相互作用     

博德.  J 梁文举 《地理译报》1994,13(3):56-59

  相似文献   

记录到的强震加速度的傅氏幅值谱基于震级与局部土质、地质条件的经验标定(英文)     

M.D.Trifunac 《地震工程与工程振动》1989,(2)

本文提供了强震加速度傅氏幅值谱的新的标定方程,用来表征基于土质和地质场地分类参数的局部场地条件。文中表明,土质与地质场地条件两者应同时应用于场地特定幅值谱的估计。  相似文献   

大气环流模式射出长波辐射日循环模拟     

A.Slingo  毛文清 《气象科技》1989,(1):37-40

1.引言由卫星观测平台进行的地球辐射平衡(ERB)观测表明,它对于气候研究及气候模式的合理化具有重要意义(Hartmann等,1986).这些资料能直接给出地球气候系统的能源——辐射加热的水平分布.此外,由于辐射热受到云量的强烈影响,这些资料还含有云的分布及其辐射特征的信息.因此,这种观测可以为大气通用环流模式(AGCM)  相似文献