会东小街铜金矿成矿地质特征及找矿前景探讨

小街铜金矿是会东地区一种重要的成矿类型，笔者对该矿区所处构造部位、地质构造及矿床特征、成矿地质背景、成矿条件、矿化富集规律进行分析，认为区内成矿地质条件好，加强综合找矿，可望实现新的突破。     

四川玛孜措Cu—Au异常特征及找矿前景

通过对玛孜措地区1：20万及1：5万地球化学异常及地质特征的研究，并与我国著名的福建紫金山陆相火山岩型Cu-Au矿田区域地质地球化学异常结构模式对比，推测玛孜措Cu-Au异常具有福建紫金Cu-Au矿相似的成矿机理，因而具有较好的找矿前景。     

乌兹别克斯坦的矿产资源与投资前景—随中国科学家代表团访问乌兹别克斯坦考察报告之一

介绍了乌兹别克斯坦共和国的地质构造背景，已探明的和潜在的矿产资源，投资环境及可供我国利用的矿产资源。乌兹别克斯坦共和国是我国的近邻，其金，铀，钾盐，银，铜是乌兹别克斯坦的优势和矿产资源，尤其是金和铀的储量与产量在世界上占有重要的地位，应当在我国矿产资源的全球战略中占据它应有的位置。     

THE MONTHLY PREDICTION EXPERIMENTS USING A COUPLED ANALOGY-DYNAMICAL MODEL

Considering from point of view of the dynamics,it is convenient to regard the field to be predictedas a small disturbance superposed on the historical analogous field,and thus the statistical technique can beused in combining with the dynamics.Along this line,a coupled atmosphere-earth surface analogy-dynamicalmodel is formulated and applied to making monthly prediction.This approach facilitated the utility of the useful information contained in both the historical data setand the initial field to improve the dynamic model based solo on the latter and show better skill in prediction.     

对摄影测量学教材中个别问题的探讨

对翻译出版书中遗留未能译出的“Freyen”予以澄清；所涉及的书名，得到更正。二百多年前，兰伯特在该书中提出的“透视反转”，可视为像片纠正的理论根据。透视反转作图的主要步骤是找现投影中心和确定透视轴的位置。文中所引用的图1、图2，详细地说明了确定相应投影中心的步骤。对确定透视轴的位置，提出了图解的方法。     

Budget Calculations for Ozone and Its Precursors: Seasonal and Episodic Features Based on Model Simulations

Results from two air quality models (LOTOS, EURAD) have been used toanalyse the contribution of the different terms in the continuity equationto the budget of ozone, NO_x and PAN. Both models cover largeparts of Europe and describe the processes relevant for troposphericchemistry and dynamics. One of the models is designed to simulate episodesin the order of 1–2 weeks (EURAD), the other is focussing on theseasonal scale (LOTOS). Based on EURAD simulations it is found that theatmospheric boundary layer (ABL) in Central Europe during a summer-smogepisode in 1990 acts as a source of ozone, which is partly exported from theproduction region in Central Europe. About 40% of the ozone producedchemically in the ABL is lost from Central Europe due to net transport(large-scale and turbulent), 40% are deposited within the domain. Vertical mass exchange of ozone is dominated by the prevailing subsidenceand averaged vertical mass fluxes are directed downward. Averaged massfluxes of PAN, which has no stratospheric source, are upward in the upperpart of the ABL. The results from LOTOS are discussed for the same episodeand for a two month period (July/August 1990). The budget calculation showlarger chemical production for the LOTOS model compared to EURAD. Therelative importance of deposition and net transport, however, is in the sameorder. Differences between the two-month calculation and the one weekepisode are only important for Western Europe where the chemical production is enhanced by 30% during the summer-smog episode. The dependence ofthe results on initial and boundary values is discussed for ozone on thebasis of a simple sensitivity study with EURAD where ozone in the FT is setto 10 ppb initially. This leads to a reversal in the direction of averagedozone mass fluxes in the upper part of the ABL.     

锇同位素研究现状与展望

总结了近年来Ｏｓ同位素在示踪大洋玄武岩成因机制及大陆古老克拉通岩石圈地幔演化所取得的新成果和存在的主要分歧和不足之处，并对未来Ｏｓ同位素研究方向进行了展望。     

新疆准北地区铜矿床主要类型控矿条件及找矿前景分析

准北地区铜矿床已发现有岩浆熔离铜镍硫化物型，海相火山岩型，隐爆角砾岩型和陆相火山岩型，那林卡拉－喀拉通克铜镍矿带受控于海沟岛弧盆地内基性岩带的控制，岩浆分异程度对铜矿形成具有明显的控制作用，海相火山岩铜矿受火山机构制约，常产出于海底火山喷发中心及附近洼地，将准北地区划分冲乎尔－麦兹铜多金属，阿舍勒铜锌，额尔齐斯铜（镍）金－萨吾尔－加波萨尔铜（钼）和谢米斯台－阿尔曼台－北塔山铜等五个具找矿前景的成矿     

Effects of long-range transport on atmospheric trace constituents at the baseline station tenerife (Canary Islands)

First results of baseline observations from the new BAPMoN station Tenerife give information about the atmospheric background in this latitude of about 25° N in the North Atlantic. The influence of the meridional exchange with the northern part of the hemisphere as well as transport from the African continent is evident. Changes of air mass are strongly reflected in the concentration records of carbon dioxide, methane, and ozone depending on the seasonal and meridional distribution of these components. Transport of Sahara dust results in an increase of optical thickness and an ozone depletion. According to the seasonal frequency of characteristic transport conditions, these influences are reflected in the annual cycle of the records.     

Seasonal variation of atmospheric 210Pb and Al in the western North Pacific region

The atmospheric concentration of ²¹⁰Pb was determined for two years at six stations in the western North Pacific region. The following results were obtained and discussed by comparing them with those of Al. The atmospheric concentration of ²¹⁰Pb varied widely from week to week, but the degree of variation was about a half that of Al. Contrary to Al, the year-to-year variation of ²¹⁰Pb was not pronounced and its seasonal variation was well expressed by a sine curve. The ²¹⁰Pb concentration did not show a marked latitudinal variation and its base-line concentration was high in the surface air over the North Pacific. These suggest that atmospheric ²¹⁰Pb has a longer residence time, due to its transportation through higher altitudes and deposits much more evenly onto the Earth's surface and the ocean, as compared with Al in mineral dust which is larger in size in the source region.