Geochemistry of Alkaline—Ultrabasic Rocks in the Jijie Complex,Lufeng,Yunnan

is paper is concerned with the geochemical features of major elements,transition metal elements,large ion lithophile elements,rare-earth elements and Sr isotopes in alkaline-ul-trabasic rocks in the Jijie complex of Lufeng,Yunnan Province,which is located in southern Sichuan-Yunnan rift zone,one of Luoci alkaline-ultrabasic complexes in central Ynnnan,Moreover,its origin pertaining primary magma,magma soure region,fractional crystallization,etc.are also discussed in the present paper.     

A Study on Organic Inclusions in Clastic Reservoir Rocks and Their Application to the Assessment of Oil and Gas Accumulations

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.     

泡沫泥浆钻进工艺及护壁堵漏机理研究

介绍了所研制的ＤＦ－１型泡沫剂组分及性能；对泡沫泥浆钻进的配方进行了研究，得出的最优配方应用于现场，取得了较好的效果，并对泡沫泥浆的护壁机理进行了研究。     

地幔交代作用的微区微量元素证据——云南双沟蛇绿岩的质子探针研究

用质子探针技术对双沟地幔交代熔融物的微区微量元素进行了测定。研究表明,地幔橄榄岩中的残留矿物橄榄石和斜方辉石仅含Ni和Zn,而Ga、Ge、Sr、Rb、Zr、Y、As、Pb等微量元素主要集中在地幔部分熔融所产生的矿物(尤其是尖晶石和绿泥石)中。微区范围内微量元素的分布表明,尖晶石二辉橄榄岩地幔不均一性的尺度可达微米级,通常解释为尖晶石二辉橄榄岩在开放系统下地幔交代作用的结果。     

钛（Ⅳ）的反相萃取柱色层新体系研究及应用

本文研究了以ｃＨＣｌ＝８ｍｏｌ·Ｌ－１盐酸为移动相，以聚四氟乙烯负载的钽试剂－ＣＨＣｌ３为固定相反相萃取层析钛（Ⅳ）的新体系，柱上层析的钛用ｃＨＣｌ＝３ｍｏｌ·Ｌ－１盐酸洗脱后经二安替比林甲烷光度法测定，不仅钛回收率可达１００％，并可使钛（Ⅳ）与多种离子分离。能用于矿物岩石类复杂样品及其他物质中钛的分离富集与测定，方法简便快速。     

抚顺盆地超厚煤层的沉积条件分析

根据抚顺盆地早第三纪超厚煤层中异常丰富的成因标志，论证了一种与河流、风暴作用有关的陆相超厚煤层形成新机制－湖成异地－微异地混合堆积机制。在这一新机制中，由风暴上升流（也许还有地震）触发的水下重力流及风暴回流，既驱动湖滨泥炭沼泽和三角洲上的有机碎屑及无机碎屑进入湖泊中心区，又造成泥炭碎屑在较深水环境的再次堆积，从而使其中无机碎屑与泥炭碎屑有效地分离。     

判定地下水二维水动力弥散参数的直线图解法

弥散参数的求得，是正确认识地下水污染运移及对其控制的前提。本文根据极值理论和非线性方程线性化手段，导出了浓度和时间变化的线性关系，得出了确定弥散参数的直线图解法。它可以弥补其它方法的不足。借用实际弥散试验资料对其进行了检验，表明所建数学模型与实际模型之间吻合良好，即所求得的参数结果可信。     

口泉沟南水源地环境同位素研究和水资源评价

分析了大同矿区口泉沟南区的水文地质条件，利用氢，氧，铀，硫，碳等环境同位素研究了口泉南与相邻的泉域和三层洞泉域的关系及地下水的补给来源；用有限元法进行了地下水资源评价和水位预报，证明在该区建立供水１０＾４ｍ＾３的水源地是可能的。