铜陵冬瓜山矿床磁黄铁矿的矿物学特征及其指示意义

磁黄铁矿是铜陵冬瓜山矿床中最重要的矿石矿物之一,其标型特征不仅反映其自身形成环境,对矿床成因也具有指示意义。本文选取矿床中不同层位的磁黄铁矿矿石样品,利用矿相学、X射线衍射、电子探针和同位素分析等手段对磁黄铁矿标型形态、成分、结构以及物质来源进行了分析。研究表明：磁黄铁矿主要分布在矿体的中部,根据磁黄铁矿与其共生矿物之间的交代关系,认为金属矿物的生成顺序是黄铁矿→磁黄铁矿→黄铜矿→磁铁矿。X射线衍射显示磁黄铁矿以六方和单斜相为主,近岩体处主要是六方晶系;远岩体处则以单斜晶系为主。且见单斜沿六方磁黄铁矿的边部有交代现象,显示出热液交代作用的特征。电子探针测试显示磁黄铁矿的Fe元素含量为58.435％～60.978％,平均值为59.737％;S元素含量为38.297％～39.891％,平均值为38.696％,分子式为Fe₄S₅～Fe₉S₁₀,也显示磁黄铁矿有六方和单斜两个相,单颗粒成分剖面显示其核部为六方相,边部为单斜相。磁黄铁矿的δ³⁴S组成均为-0.7‰～+13.5‰之间,δ⁵⁷Fe的总体分布范围为0.49‰～0.52‰,Fe同位素和S同位素显示它们均来源于岩浆及其热液。说明磁黄铁矿具有岩浆成因和热液交代成因。支持冬瓜山矿床是与燕山期岩浆活动有关的矽卡岩型矿床观点。     

庐山变质核杂岩基底拆离的变形特征及形成条件

庐山变质核杂岩具有典型的3层结构。拆离带是核部隆升过程中盖层滑脱、剪切变形而形成的,该拆离面是在北东向褶皱基础上叠加杂岩核部隆升作用而形成的波状起伏面。拆离带在核部以西发育倾向西向、南西向、北西向的面理和矿物生长线理,显示向西滑脱形成剪切拉伸变形的特征。拆离带岩石以糜棱岩和构造片岩为主,辅以碎裂岩和构造角砾岩。岩石变形特征表明其既具有韧性变形,也具有脆-韧性变形及脆性变形的特点。核部隆升引起的拆离变形作用,不仅形成了拆离带,还影响了拆离带以上盖层岩石,形成一个由拆离带向上由强变弱的变形域。这种规律性递变现象使庐山变质核杂岩具有垂向变形分层、水平变形分带的特点。拆离带中角闪石-斜长石矿物对计算得出的变质温度为653 ℃～694 ℃,压力为0.56～0.67 GPa。     

在全省国土资源局长培训班上的讲话

厅党组对党风廉政建设十分重视，十分支持。刚才听了大家的汇报，我感觉在纪检监察工作和基层所建设方面，各市县局做了大量工作，创造了不少好的经验和做法，因时间关系，我重点通报五项工作情况。     

求真务实 开拓创新 进一步推进系统党风廉政建设和反腐败工作——在全省国土资源系统纪检监察行风建设工作会上的讲话（摘要）

2003年，全省国土资源系统党风廉政建设和反腐败工作在省委省政府的领导下，以“三个代表”重要思想为指导，深入学习贯彻党的十六大精神，认真贯彻、落实省纪委三次全会、部纪检监察工作会议和省政府廉政会议精神，紧紧围绕厅党组的工作部署，坚持与时俱进，突出重点，整体推进，党风廉政建设和反腐败工作取得了明显成效。     

落实制度规定 创新工作方法 不断推动党风廉政建设和反腐败工作上新台阶——在全省国土资源系统纪检监察工作会议上的讲话

我们这次全省国土资源系统纪检监察工作会议，是经厅党组研究决定召开的。会议的主要任务是：以邓小平理论和“三个代表”重要思想为指导。全面落实科学发展观，深人贯彻中央纪委七次全会、国务院第五次廉政工作会议、省第七次党代会和省纪委二次全会精神，按照省委、省政府和省纪委的总体部署，认真总结2006年党风廉政建设和反腐败工作，研究部署2007年党风廉政建设和反腐败工作任务。     

Non-specific immune response of bullfrog Rana catesbeiana to intraperitoneal injection of bacterium Aeromonas hydrophila

Non-specific immune response of bullfrog Rana catesbeiana to pathogenic Aeromonas hydrophila was studied to 60 individuals in two groups.Each bullfrog in bacterium-injected group was injected intraperitoneally(i.p.) with 0.2 ml bacterial suspension at a density of 5.2 × 106 CFU/ml,while each one in control group injected i.p.with 0.2 ml sterile saline solution(0.85%,w/v).Three bullfrogs in both groups were sampled at 0,1,3,7,11,15 and 20 days post-injection(dpi) for the evaluation of non-specific immune parameters.It was observed that intraperitoneal injection of A.hydrophila significantly increased the number of leucocytes and that of NBT-positive cells in peripheral blood.Significant increases in serum bactericidal activity and serum acid phosphatase activity were also observed in the bacterium-injected frogs when compared with those in the control group.However,a significant reduction was detected in vitro in phagocytosis activity of peripheral blood phagocytes.No significant difference in changes in the number of peripheral erythrocytes,serum superoxide dismutase(SOD) activity,and lysozyme activity was detected between the two groups.It is suggested that bullfrogs may produce a series of non-specific immune reactions in response to the A.hydrophila infection.     

实施南水北调 改善农村不安全饮水状况

针对沧州市水资源严重匮乏,由于特殊的地理位置和水文条件,造成土地盐碱、浅层水苦成、深层水含氟量高,致使农村饮水困难等问题,提出实施南水北调是解决沧州农村饮水安全的根本措施,并对南水北调配套工程的农村不安全饮水区进行了供水工程规划。     

Immune response of <Emphasis Type="Italic">Pseudosciaena crocea</Emphasis> to the injection of <Emphasis Type="Italic">Vibrio alginolyticus</Emphasis>

For the investigation of anti-infection immune response of Pseudosciaena crocea, 160 healthy fish samples were categorized into infected and control groups. Each individual fish in the infected group was injected intraperitoneally (i.p.) with 0.2 ml bacterial suspension of Vibrio alginolyticus in density of 2×10⁷ CFU/ml, while each individual in the control group was injected i.p. with 0.2 ml sterile saline solution (0.85%). It was observed that the artificial injection of V. alginolyticus significantly increased the number of erythrocytes, leucocytes, lymphocytes in peripheral blood as well as peripheral serum antibacterial activity and antibody titer of large yellow croaker, and significantly reduced the number of peripheral blood granulocytes as compared with those in the control group. No significant difference in acid phosphytase and superoxide dismutase activity of serum was detected between the two groups. It is suggested that non-specific immune factors including leucocytes and anti-bacteria substance in peripheral blood played important role at the initial stage of infection, and specific immune factors such as antibody then played important role in response to anti-infection at the latter stage. Supported by the National High Technology Research and Development Program of China (863 program, No. 2007AA09Z115) and Technology Program of Xiamen (No. 3502Z73019)     

浅议沧州地下水压采的途径和对策

针对沧州市水资源开发利用中存在地表水不足,浅层地下水苦咸,深层地下水超采,导致水资源严重匮乏的现状。提出通过外调水、雨洪资源利用、节水工程、调整产业结构、健全管理制度等工程措施和非工程措施来实现工程水资源优化配置、实施综合治理措施,探索地下水压采的途径和对策,促进沧州市水资源可持续利用和经济社会可持续发展。     

练江平原第四系的时代

基于钻孔柱状图将练江平原区第四系划分为9个基本层,通过对WYZK-06孔岩心的系统测年,标定了第四系的年代。第四系底部地层时代为中更新世,厚度约40 m,为陆相沉积。中更新统底部地质年龄为(325±32)ka,属中更新世中晚期;顶部为一套厚达10 cm左右的稳定花斑黏土层。上覆地层为上更新统,反映中更新世与晚更新世之间有较长时间的沉积间断。中更新统分布局限于普宁—两英之间,上更新统和全新统占据平原的大部分地区,表明练江平原是在中更新世发生局部断陷,在晚更新世以来开始接受大面积沉积。