华南湘赣粤地区红层残积红土的工程地质研究

通过对红层残积红土的粒度成分、矿物成分、化学成分、物理化学特性、宏观结构、微观结构特征的全面系统分析，揭示红层残积红土不仅经历了物理风化作用，而且经受过红土化作用，具有红土的一般特点，是一种强度稍高，压缩性中等，含较多游离氧化物的超固结土。最后对红层残积红土的工程地质评价提出建议，认为其特性与母岩有关，砂砾岩、砂岩残积红土接近花岗岩残积红土；粉砂岩、泥岩残积红土接近红粘土，并对地基承载力和变形等问题提出具体的评价意见。     

配位滴定法同时测定金属离子浓度的研究

将多元校正分析法应用于配位滴定中，以ＥＤＴＡ为滴定剂，玻璃电极为指示电极，饱和甘汞电极为参比电极。依据电位滴定原理，对混合三组分：Ｃｕ￣（２＋）、Ｃｄ￣（２＋）、Ｚｎ￣（２＋）、及Ｃｕ￣（２＋）、ＣＯ￣（２＋）、Ｎｉ￣（２＋）进行测定，各金属离子之间的△ｌｏｇＫ在０．０４～２．３４之间，计算误差一般小于土１０％。     

贵州独山中深盆统不整合的发现及其意义

黔南中泥盆统独山组鸡窝寨段底部存在的古风化壳层和其之上的底砾岩,为一次地亮相对上升、海平面下降的上升运动（独山抬升）,表明独山组内存在着沉积间断。建议将此古风化壳之上的原＂独山组鸡窝寨段＂修订为＂鸡窝寨组＂,代表中泥盆世晚期较独山组更大海侵的以碳酸盐岩为主的沉积。     

逆冲断层前锋带的构造样式

由于逆冲断层产出构造环境和规模的不同，其前缘可以有拆离型，褶皱型，前冲型，反冲型等多种样式；每种样式又可具不同特征。此外，逆冲前缘还常伴生一些重力构造，盆地构造和不同方向的反转构造。各种构造样式可以相互转化和过渡而共存于同一逆冲带，或发育于不同逆冲带中。它们是研究塑冲作用的动力状态，，扩展方式和发展阶段的重要依据。     

含硒硫锑铅矿在我国的发现及其意义

含硒硫锑铅矿是硫锑铅矿的含硒变种，产于皖南宋冲锑－铅矿点的矿脉中，这是含硒硫锑铅矿在我国的首次发现。在该矿点，含硒硫锑铅矿含量高，独立形成锑－铅矿体，这在国内外尚属首例。含硒硫锑铅矿中Ｓｅ的含量ｗＳｅ＝１．５８８％，其化学式为（Ｐｂ４．６１７１Ａｇ０．０２１７）４．６３８８（Ｓｂ３．６７８１Ａｓ０．１９００）３．８６８１（Ｓ１０．６３４５Ｓｅ０．３６３７Ｔｅ０．００１８）１１。     

裂变径迹定年标准化的研究

用钴活化箔对SRM962标准铀玻璃进行了刻度,并比较了用钴活化范和用经过刻度的标准铀玻璃测量中子注量的定年方法,结果表明后者的定年结果优于前者,两者都有正系统偏差。利用磷灰石、结石和榍石的7种年龄标准样品和SRM962标准铀玻璃进行多次刻度,发现3种年龄标准矿物的Zeta常数基本一致,为327.4±7.8(±2σ).     

煤矿开采在煤系砂岩中形成现代陷落柱的实例

通 过 钱家 营井 田 203泥石 流 突发 事故 ,对 陷落 柱 的形 成机 理 作进 一步 的 研究 ,巷 道临 空 空间 、构 造破 碎带 、高压 地下 水 的存 在是 煤 系砂 岩地 层 中形 成现 代 陷落 柱的 主 要控 制因 素 。     

Composition and assemblage characteristics of magnetic minerals in layer S<Subscript>5-1</Subscript> of Xifeng and Duanjiapo sections

Relatively strongly magnetic fine components (< 30μm, XS-4J and DS-4J) which are most environmentally sensitive were separated from layer S_5-1 in the Xifeng and Duanjiapo loess sections and analyzed by MPV-3 for their morphometric characteristics and reflectance, SEM-ESD for their element contents and XRD for their mineral phases, respectively. The results showed that minerals in both samples are dominated by detrial Fe-Ti oxides of aeolian origin. In sample XS-4J the reflectance and iron contents of magnetic minerals are usually high. In addition to magnetite (Fe₃O₄), maghemite (γFe₂O₃) and hematite (Fe₂O₃), some Fe-high oxide (72.25 wt%–86.67 wt%), ilmenite (FeTiO₃), and magnetite-ulvöspinel [Fe(FeCr)O₄, Fe (FeNi)O₄] were also detected. In sample DS-4J obvious negative linear correlations were found between Ti and Fe, and the contents of Mn, Si, Al and Ca are usually high and the minerals are dominated by magnetite (maghemite), goethite (FeOOH) and limonite (containing Si and OH). In addition, the signs of corrosion of magnetic minerals and newly crystallized magnetite (maghemite) were recognized. Differences in the composition and assemblage characteristics of magnetite minerals between XS and DS reflect significant differences in source rocks and preserving conditions.     

Removal of Cu(Ⅱ) from Wastewater Using Acidified Sewage Sludge Ash

Sewage sludge ash (SSA), the waste generated in sewage sludge incineration, was obtained from Wuhan Sewage Treatment Plant and used as a low-cost sorbent for removing Cu(Ⅱ) from wastewaters. The sorbent was first modified with 5 % sulfuric acid to increase its sorption capacity. The specific surface area, porosity, cation-exchange capacity (CEC) and pHZPC of the sorbent were measured. Batch experiments were made to study the effect of contact time, solution pH value and temperature on sorption. Both Langmuir and Freundlich models well described the Cu(Ⅱ) sorption process, with correlation coefficient (R2) values of 0.993 4 and 0.989 9 respectively. And the sorption process follows the Lagergren first order kinetic model. The equilibrium sorption capacity of acidified SSA to Cu(Ⅱ) is estimated to be 7.78 mg/g under optimal conditions.     

Genesis of Kanggur Gold Deposit in Eastern Tianshan Orogenic Belt, NW China: Fluid Inclusion and Oxygen and Hydrogen Isotope Constraints

Abstract. Primary fluid inclusions in quartz and carbonates from the Kanggur gold deposit are dominated by aqueous inclusions, with subsidiary CO₂-H₂O inclusions that have a constant range in CO₂ content (10–20 vol %). Microthermometric results indicate that total homogenization temperatures have a wide but similar range for both aqueous inclusions (120 to 310C) and CO₂-H₂O inclusions (140 to 340C). Estimates of fluid salinity for CO₂-H₂O inclusions are quite restricted (5.9∼10.3 equiv. wt% NaCl), whereas aqueous inclusions show much wider salinity ranging from 2.2 to 15.6 equivalent wt %NaCl.
The 6D values of fluid inclusions in carbonates vary from -45 to -61 %, in well accord with the published δD values of fluid inclusions in quartz (-46 to -66 %). Most of the δ¹⁸O and δD values of the ore-forming fluids can be achieved by exchanged meteoric water after isotopic equilibration with wall rock by fluid/rock interaction at a low water/rock ratio. However, the exchanged meteoric water alone cannot explain the full range of δ¹⁸O and δD values, magmatic and/or meta-morphic water should also be involved. The wide salinity in aqueous inclusions may also result from mixing of meteoric water and magmatic and/or metamorphic water.