氨基酸在粘土高岭石上吸附等温线的研究

研究了4种氨基酸（甘氨酸，赖氨酸，天冬氨酸，谷氨酸）在粘土高岭石上的吸附等温线以及金属铜离子对其等温线的影响。研究表明，氨基酸在高岭石上的吸附等温线以及金属铜离子存在时的吸附等温线均属Langmuir型等温线；铜离子浓度增加时，其等温线斜率也增加，并认为体系可形成Ⅰ型三元表面络合物，铜离子对氨基酸在高岭石上等温线影响的规律和在相同体系中它对氨基酸在高岭石上交换吸附百分率E（%）-pH曲线的影响规律相一致。     

闽江口段溶解态镉,铅和铜的收支平衡

利用潮输沙量的计算方法,估算了闽江口入海口内3个断面所包围区域溶解态镉、铅和铜的收支平衡,从而研究了这些重金属的河口行为。     

河南镇平秋树湾矿区铜、钼矿床地质特征及深部找矿潜力分析

秋树湾矿区是一座中型规模的铜、钼矿床。在水平方向上矿区具北铜南钼的分布特征,即北山铜矿床和南山钼矿床;从垂向上看,北山铜矿床深部赋存有规模较大的钼矿体,并具垂直分带现象,即上铜下钼。这主要是矿区成矿后,构造活动使南山赋矿区向上逆冲,使其上部的铜矿体被剥蚀,而北山赋矿区上部的矿体则保存了下来。因此,研究认为,在北山铜矿区的下部及南山钼矿区中深部寻找隐伏钼矿床具有较大潜力。     

粤东成矿地质背景及银-铜-铅-锌成矿物质来源探讨

通过对粤东地区地层和岩石中成矿元素含量和区域地质背景的分析,认为粤东地区铜铅-锌-银成矿作用与燕山期的构造-岩浆作用关系密切,成矿物质中银-铜-锌以下地壳来源为主,铅则以上地壳及沉积地层来源为主。     

A surface complexation model for cadmium and lead adsorption onto diatom surface

This work is devoted to the physico-chemical study of cadmium and lead interaction with diatom–water interfaces for two marine planktonic (Thalassiosira weissflogii = TW, Skeletonema costatum = SC) and two freshwater periphytic species (Achnanthidium minutissimum = AMIN, Navicula minima = NMIN) by combining adsorption measurements with surface complexation modeling. Reversible adsorption experiments were performed at 20 °C after 3 h of exposure as a function of pH, metal concentration in solution, and ionic strength. While the shape of pH-dependent adsorption edge is similar among all four diatom species, the constant-pH adsorption isotherm and maximal binding capacities differ. These observations allowed us to construct a surface complexation model for cadmium and lead binding by diatom surfaces that postulates the constant capacitance of the electric double layer and considers Cd and Pb complexation with mainly carboxylic and, partially, silanol groups. Parameters of this model are in agreement with previous acid–base titration results and allow quantitative reproduction of all adsorption experiments.     

普朗铜矿找矿标志及找矿模型

普朗铜矿矿体形态简单,以铜为主,伴生金、硫等多种有益组份。找矿标志为深大断裂旁侧的次级两组断裂交汇部位;特别是多种岩类的杂岩体,裂隙发育地段;斑岩体靠沟谷部位(负地形)等。土壤化探异常Cu>400×10-6和Mo>10×10-6异常叠加部位;视极化率大于10%的激电异常,磁异常约50～100nT的部位等。初步建立找矿模型,运用该模型,在矿区外围已发现普上、亚杂等一批铜(多金属)矿体,矿化体,具有明显的找矿指导意义。     

黄铁矿中富铜闪锌矿的斑点状结构

内蒙古大井矿床中产出一种奇特的闪锌矿斑点结构，闪锌矿斑点包裹于黄铁矿中，通过显微镜研究和电子探针分析，认为该闪锌矿斑点属罕见的富铜闪锌矿，ω(Cu)为3．87％—6．99％，平均5．37％，其成因与在黄铜矿中的闪锌矿斑点一样，是高温下出溶作用的产物。     

中条山—塔儿山成矿带C─Fe─Au矿床成矿系列及成矿模式

中条山—塔儿山成矿带属滨西太平洋成矿域华北断块金、银、铜、铅、锌、锰、铝土矿、金刚石成矿区中的３级成矿带，其中包括２个成矿系列、７个成矿亚系列和１１个矿床式。２个成矿系列具有成矿世代的“双层性”、成矿物质来源的二元性、成矿作用的三阶段和矿化带展布与地质构造单元的趋近性等一系列特征     

Comparison of Cu and Zn cycling in eutrophic lakes with oxic and anoxic hypolimnion

Data on the cycling of Cu and Zn in two eutrophic lakes are presented: Lake Greifen that becomes seasonally anoxic in its hypolimnion and Lake Sempach that is aerated during winter and oxygenated during summer. They suggest that hypolimnetic oxygenation 1) enhances the release of copper from the sediment but 2) also accelerates the entrapment and deposition of Cu and Zn by freshly formed Mn- and Fe-oxides.     

吉林省地质灾害类型及防治对策探讨

本文针对吉林省的地质灾害类型及各类地质灾害的成因，分布及其危害进行了论述。对其防治对策进行了探讨，提出了切合本省实际的五项防治措施。