不透明矿物所含单个低盐度流体包裹体液相组分SAM/AES实验研究:Ⅰ.原理与方法     

魏春生  张国平  林清英  张燕征 《矿物学报》1996,(3)

针对与矿石矿物共存透明脉石矿物所含流体包裹体并不完全代表成矿流体，红外显微技术及EPMA、SEM等常规表面分析手段无法满足不透明矿石矿物所含单个低盐度流体包裹体研究的实际困难，本文首次成功地应用具同步扫描成象功能、电子束斑空间分辨率较高、信噪比较好的PHI595SAM／AES这一当代高灵敏表面分析技术，按单矿物分选→二次去离子水反复超声清洗→外真空热爆→在金属铟片上压制成样的实验流程对新疆阿尔泰多拉纳萨依金矿床含金黄铁矿所含单个低盐度流体包裹体的液相组成进行了静态定点分析，实验取得了满意结果。  相似文献   

乳山金矿煌斑岩及流体和氢、氧、锶同位素研究   总被引：1，自引：0，他引：1  

翟建平  胡凯  陆建军 《矿床地质》1996,15(4):358-364

乳山金矿床是胶东近年来探明的一个赋存在花岗岩中的石英脉型金矿床。矿出露的煌斑岩金含量较低，不可能是金矿化的重要物源者。  相似文献   

红外,紫外及荧光分析在有机包裹体研究中的应用   总被引：1，自引：0，他引：1  

余孝颖  施继锡 《矿物学报》1996,16(2):212-217

本文利用红外，紫外及荧光分析方法，对岩石中吸附有机质和包裹体有机质进行了分析研究，红外分析结果表明，生油岩中的包裹体有机质有明显的石油峰，并且与吸附有机质的峰形有较大差别，紫外分析结果也表明，生油岩中两种有机质的光谱性质不一致，而非生油岩则相反，生油岩荧光光谱特征为：荧光强度大（〉４０），λｍａｘ在４５０ｎｍ左右，光谱位于蓝绿光区，演化程度属高成熟原油阶段，这些可作为评价生油潜力，演化程度的方法及  相似文献   

A Study on Organic Inclusions in Clastic Reservoir Rocks and Their Application to the Assessment of Oil and Gas Accumulations   总被引：5，自引：0，他引：5  

张文淮  张志坚等 《中国地球化学学报》1996,15(3):249-257

Terrigenous clastic reservoir rocks are widespread in China,and nearly all the industrial oil and gas accumulations in eastern China occur in the clastic rocks.The study shows that organic inclusions are mostly distributed in the secondary fissures and pores which were ormed in the process of oil-rock interaction,rather than in the cements or secondary enlargements. The organic inclusions are dominantly organic gas-rich or are composed of pure hydrocarbons.Homogenization temperatures range mainly from 120℃ to 130℃，which shows a relatively high maturity of organic matter.Vertical and horizontal temperature changes provide the grounds for the investigation of basin evolution and thermal fluid-kinetics-model.Fluorescence spectral characteristics o the organic inclusions indicate that oils and gases in the area studied probably have experienced two-stage or two-time migration.Micro-fluorescence rescearch is one of the effective approaches to oil/source correlation and oil migration-stage determination.The abundance and occurrence of organic inclusions is one of the indicators of oil and gas abundance and accumulation in rock layers.With the help of other informatio,organic inclusions can provide the basis for the prospective assessment of oil and gas in clastic reservoir rocks.  相似文献   

江西永平铜矿金属矿物化学成份及矿物包体特征   总被引：4，自引：0，他引：4  

张学书 《江西地质》1997,11(2):40-48

永平铜矿黄铁矿、黄铜矿的化学成份特征以及矿物测温和石英包体成份分析特征表明成矿经历了一个较低温度阶段，但所反映的后期成矿作用的改造特征也非常明显，特征是闪锌矿，其化学成份具明显的后期改造成矿特征，是岩浆热作用的产物。黄铁矿的同生成矿较为明显，闪锌矿的后期改造成矿特征更为明显，而黄铜矿具有明显的沉积改造特征。  相似文献   

Metropolitan growth and labor markets in Mexico   总被引：1，自引：0，他引：1  

Adrian Guillermo Aguilar 《GeoJournal》1997,43(4):371-383

The objective of this paper is to examine the main changes in the metropolitan labor markets associated with economic restructuring in Mexico during the late 1980s and beginning of the 1990s. The analysis refers particularly to the four largest metropoles of the country, Mexico City, Guadalajara, Monterrey and Puebla, looking for common characteristics in their emergent employment structures now strongly differentiated in terms of rewards, stability in employment relations and conditions of access to jobs. The analysis reveals that largest metropolitan areas have been the most profoundly affected by the economic restructuring resulting from globalization, through a rapid de-industrialization and the expansion of the tertiary sector. Metropolitan labor markets in Mexico, at the time that show signs of social polarization in the formal sector, put in evidence a general process of precarization – less labor stability, replacement of permanent by part-time jobs, and increasing subcontracting –, segmentation of the labor force, and an increasing informal conditions of economic activities with small businesses and unskilled, temporarly and poorly paid jobs. The labor force segmentation and its more precarious and casual conditions are mostly explained by the impact of recent neoliberal policies, and recurrent economic crisis during the 1980s and 1990s which highly contributes to social inequality.  相似文献   

冀西北东坪金矿床含金石英脉石英流体包裹体Rb-Sr等时线及其地质意义   总被引：8，自引：2，他引：8  

莫测辉  王秀璋  程景平  梁华英 《地球化学》1997,26(3):20-27

用石英流体包裹体Ｒｂ－Ｓｒ等时线法测得产于碱性岩体中具有超大型潜力的东坪金矿床含金石英脉的年龄为（１０３±８）Ｍａ，远晚于赋矿岩体的就位时间（元古宙），显示了成岩与成矿是两期不同构造运动的产物，两者之间没有直接的成因联系。８７Ｓｒ／８６Ｓｒ示踪结果显示成矿物质主要来源于赋矿碱性岩体。研究结果认为，东坪金矿是后期与大气降水热液有关的改造成矿作用的产物。  相似文献   

变斑晶晶内显微构造特征及其成因综述   总被引：5，自引：0，他引：5  

李三忠  刘建忠 《地质科技情报》1997,16(1):46-52

变斑晶晶内包体径迹的成因研究是当代变质岩岩石学研究的一个重大方向。变斑晶是联系变质的变形的重要媒介，对研究造山过程及机制、ｐ－Ｔ－ｔ轨迹，褶皱作用机制，变质过程，变形过程、物质运移机制等起着关键性的作用，晶内包体径迹按几何形态分为９大类，综合当前的模拟结果，观察事实，分别对其成因问题作了探讨。  相似文献   

Research on the effect estimation of seismic safety evaluation     

邹其嘉  陶裕禄 《地震学报(英文版)》2004,17(1):87-98

IntroductionItisdefinitelystipulatedintheLawofthePeople'sRepublicofChinaonProtectingagainstandMitigatingEarthquakeDisastersthattheseismicsafetyevaluationmustbemadeformajorprojects(includinglifelineprojects)and,accordingtotheresultsobtained,theseismicresistancerequirementsshouldbedetermined.Thenecessityofseismicsafetyevaluationhasbeenrecog-nizedgradually,butthetopicontheeffectofsafetyevaluationhasnotbeenreferredmuch.Gener-allyspeaking,althoughmostpeopleapprovethesocialeffectofsafetyevaluatio…  相似文献   

3-D rheologic model of earthquake preparation (II): Strain field and its applications     

宋治平  尹祥础  梅世蓉 《地震学报(英文版)》2004,17(2):131-143

Introduction Based on the elastic theory of the hard inclusion (Dobrovolskii, 1991), we developed an inclusion theory of rheologic medium, and applied the results of bulk-strain field of a rheologic inclusion model to explain the spatial-temporal evolution process of earthquake precursors (SONG, et al, 2000). In the former paper (SONG, et al, 2003), we derived the viscoelastic displacement field of the rheologic inclusion model on the basis of the analytic expression of displacement field o…  相似文献