How to use the groundwater resources at the area polluted by organoarsenic compounds for Old Japanese Army Toxic Gas Weapon in Japan

从医学地质学角度看,在日本地质污染的地方如何使用地下水资源,我们面临许多问题.本文讨论了地质污染学(geo-pollution science)作为医学地质学中一门学科的概念以及在受二苯亚砷酸污染的地方成功使用农业地下水的案例.     

Water inrush and environmental impact of shallow seam mining

Shallow seam mining is very common in China for enhancing coal recovery. However, this may cause a series of severe problems in environment and mining safety in some cases, because the alluvium aquifers are directly above the shallow coal seams. Some typical water and sand inrush incidents resulting from shallow mining in China are analyzed. Based on in-situ observation, the mining-induced strata failures are investigated. The height of the fractured zone decreases as the size of the outcrop pillar or mining depth decreases. The spatial distributions of the failure zones in the shallow mining have specific features compared to the deep mining. These provide an advantageous condition for the shallow mining under alluvial aquifers. Optimal designs for outcrop pillar sizes are also given in different hydrogeological conditions for environment friendly and production-safe mining at shallow depths. According to in-situ mining experiments in several coalfields, technical measures for shallow mining are presented. These primarily include the lift mining for thick seams and reduction of the thickness of extraction in the first lift, short-wall mining, and detection of faults and other potential hazards prior to mining.     

天山北缘前陆冲断带形成时间的地层学证据

乌鲁木齐附近天山北缘喀拉扎背斜及其周缘的地层学分析表明，上中新统一上新统昌吉河群(N1-2ch)(相当于独山子组N1-2d)是喀拉扎山地区发育的生长地层，是喀拉扎背斜形成时的同构造沉积层序．这个结论表明、包括喀拉扎背斜在内的天山北缘第一排前陆冲断构造带形成于晚中新一上新世时期．     

新疆萨热阔布地区水系沉积物地球化学异常特征及找矿前景分析

萨热阔布地区水系沉积物地球化学异常及矿产的分布与泥盆系下统康布铁堡组上亚组第一、二岩性段有密切的成矿关系。异常规模较大，且成群成带分布，是金及铅锌银铜多金属找矿的有利靶区。     

NK8310螯合树脂分离富集地质样品中痕量金银铂钯及其测定

研究了硫脲螯合树脂（NK8310）分类富集地质样品中痕量Au、Ag、Pt和Pd的实验条件。在φ=10％的王水介质中，[AuCI4]^-、[AgCI2]^-、[PtCI6]^2-和[PdCI4]^2-定量吸附于树脂上并与大量贱金属分离；用5g/L硫脲－0.12mol/L HCI溶液洗脱Au、Ag、Pt和Pd，回收率为97％－104％。用硫镍矿管理样以及国家一级标准物质进行分析验证，分析结果与推荐值及标准值吻合，表明NK8310螯合树脂适用于地质样品中Au、Ag、Pt和Pd的分离富集。     

野外微量金的快速测定

介绍了稀王水冷浸取，硫代米虫酮显色，以聚丙烯滤棒为载体，一次完成富集、显色的野外测定微量金的方法。对实际金矿样品进行测定，精密度（RSD，n=10）＜6％；对国家级标准物质进行测定，结果与标准值相符     

含油岩石的荧光特征研究

在紫外光照射下,很多有机物质和部分无机物质能够发出不同颜色和亮度的荧光。本文研究了含油岩芯中岩石矿物的荧光特征,指出采用氯仿（或乙烷）试剂浸泡岩样是区别岩石矿物荧光的有效方法。本文着重对含油岩芯中有机质组成以及有机组分与荧光颜色的关系进行了深入的探讨,指出依据含油岩芯的荧光颜色可以进行油气水层的荧光解释。     

南京-仪征地区新近纪砂砾层层序及古长江的形成与演化

对南京—仪征地区新近纪砂砾层层序、时代进行了讨论。该地区新近纪砂砾层地层层序为中新世中期的洞玄观组(Nld)、中新世晚期的六合组(N1l)、黄岗组(N1h)及上新世的雨花台组(N2y)，认为雨花台组沉积是位于六合组之上的另一套砂砾层，其沉积时代为上新世晚期。还分析了新近纪砂砾层在中新世中期、中新世晚期、上新世的沉积环境，探讨了区内古长江的形成与演化，认为古长江是在古近纪断陷盆地的基础上，经历了中新世多个汇水盆地的发育阶段至上新世形成古长江雏形，并于更新世早期基本定型，其形成及演化过程均与新构造活动息息相关。     

Improved dithiocarbamate/oxine solvent extraction method for the preconcentration of trace metals from seawater using metal exchange back-extraction

A rapid single extraction procedure using dithiocarbamate complexing agent, a di-isobutyl ketone (DIBK) organic phase and Hg exchange back-extraction is described for the simultaneous quantitative preconcentration of Cd, Co, Cu, Fe, Ni, Pb and Zn in seawater. An 8-hydroxyquinoline (oxine) extraction technique is also presented for the subsequent determination of Mn using the same reagents and operating system. The proposed method gave quantitative spike recoveries for all metals and was in excellent agreement with the certified results for CASS-3 marine reference seawater. Blanks and detection limits are in the low ppt range. The method gives a preconcentration factor of 72 for an 80-ml sample, facilitating the analysis of pristine seawater samples.