山东省新一代天雷达楼防雷设计施工方案

以济南齐河雷达塔楼的防雷设计施工为例，阐述了我省新一代天气雷达楼在设计和建设施工中，针对雷电的各种危害途径所采取的具体防护措施和施工方案。     

扬子板块西北西南缘卡林型金矿蚀变特征

我国的卡林型金矿主要分布在杨子板块的西北和西南边缘及湘中地区,绝大多数卡林型金矿床都具有较强的蚀变矿化.对西北缘“陕甘川”和西南缘“滇黔桂”两个“金三角”区域内典型卡林型金矿矿化蚀变进行分析,总结矿化类型及其与成矿期次的关系,矿化蚀变与构造的关系,矿化蚀变的物化条件及成因要素,以及矿化蚀变地球化学特征,对该类型矿床的勘查有一定指导意义.     

西藏北羌塘盆地帚状旋扭构造体系及对油气找寻战略的思考

以北羌塘盆地多格错仁地区为例,重点分析和论述了该地区地层、构造组合及其空间展布规律,指出北羌塘盆地多格错仁地区多级复式褶曲及与其匹配的边界断裂所构成的三级构造单元,呈现帚状构造组合特征,进而提出北羌塘盆地为一大型帚状旋扭构造体系。油气找寻的战略方向应在该体系向东南撤开的方向上,重点是多格错仁—赤布张错一带的广大区域。     

北太平洋海平面气压场变化与海温的关系

利用SVD（singular value decomposition）方法分析了1948年1月—2002年12月北太平洋海平面气压场与海温的关系。结果表明,SVD第1对异类相关分布型反映出,当东北太平洋副热带高压加强（减弱）时,Namias海区海温升高（降低）,而加利福尼亚海流区海温降低（升高）。SVD第2对异类相关分布型表明,当阿留申低压加深、北太平洋副热带地区气压升高时,黑潮暖流区海温升高,而北太平洋高、低纬海温降低;反之亦然。时滞相关表明,北太平洋大气环流异常超前海温1个月的相关最好,海温变化对大气环流异常分布型具有维持作用。NCAR CCSM3模拟结果很好地验证了上述结论,即在海气相互作用过程中,东北太平洋副热带高压和NPO（North Pacific Oscillation）与北太平洋海温存在密切联系。     

山东省兰陵县车辋地区铜铅多金属矿地质特征及找矿标志

车辋地区铜铅多金属矿区位于山东省兰陵县车辋镇东部,区内寒武奥陶纪碳酸盐岩地层分布广泛,中生代岩浆活动频繁,构造活动强烈、层间破碎带发育。激电异常明显,且具低阻高极化特征。铜铅多金属矿化期为岩浆期后热液阶段,岩体边部和外侧的构造破碎带、层间破碎带为成矿热液的运移、储存提供了有利空间,是寻找多金属矿的有利部位。     

北黄海盆地中新生代沉积环境及特征

北黄海盆地是晚中生代和早新生代形成于东北亚陆壳之上的一系列ＮＥ－ＳＷ向裂谷盆地中的一个，以新生界盆地迭置于中生界盆地之上的双层结构为特征，盆地的演化发展可分为四个阶段，主要为陆相沉积，其中上侏罗统深湖相沉积机能是盆地内的主要烃源层，对盆地的油气资源远景评价具有重要的意义。     

北黄海盆地东部坳陷不同物源影响下储层的成岩演化

以北黄海盆地东部坳陷中生界碎屑岩储层为研究对象,运用岩石薄片光学显微鉴定、阴极发光和扫描电镜等技术方法和手段分析成岩特征,探讨不同物源-沉积体系控制下储层的成岩演化。研究认为,东部坳陷中生界储层主要处于中成岩阶段A期,发育的主要成岩作用类型为压实作用、胶结作用、凝灰质脱玻化作用、交代作用、蚀变作用和溶蚀-溶解作用,其中,东部地区压实作用强度要高于西南和北部地区,北部地区碳酸盐胶结物的含量明显高于其他地区,东部地区以凝灰质胶结为特征并发生凝灰质脱玻化作用,西南部以黏土矿质胶结为特征并发生明显的黏土矿物转化现象,西南和北部地区的溶蚀/溶解作用的发育程度要好于东部地区。综合分析认为,研究区不同物源沉积区储层具有差异的成岩特征,表现为不同的储层序列,从而影响储层的成岩演化。     

北黄海潮流、余流垂直结构及其季节变化

基于对2006年夏季与2007年冬季在123.51°E,38.00°N的各1个月潮流和水位观测数据的分析,发现夏季余流呈现两层结构,上层流向为西北,下层流向东南,并且当大潮日期附近,在跃层附近深度存在若干流速较强的水层;冬季余流除了个别层以外基本上均为西北向流入北黄海,从中可以看到风场改变所引发的异常增减水和强流出现。对潮流椭圆的分析表明,半日潮族分潮流的最大流向自夏季至冬季存在着顺时针的旋转,旋转角大约为16(°)～18(°),并且夏季半日潮族随深度顺时针,全日潮族逆时针旋转,而冬季基本上上下一致。     

北淮阳东段卢镇关群和佛子岭群地层含矿性地球化学评价

卢镇关群和佛子岭群广泛分布于北淮阳成矿带内,但是对其含矿性研究一直较为薄弱。文章通过对卢镇关群和佛子岭群成矿元素的地球化学特征研究,评价地层含矿性。成矿元素富集系数(K)分析表明卢镇关群和佛子岭群各组中Mo元素均富集,W、Pb、Ag、Cu元素也存在不同程度的富集,存在潜在成矿可能;成矿元素后期叠加强度(D)分析表明本区的Mo、Ag、Cu等元素存在不同程度的后期叠加作用;成矿元素变异系数(CV)分析表明本区成矿元素具有一定的成矿潜力。对卢镇关群和佛子岭群成矿能力评序得出最优势矿种为Mo元素,并且卢镇关群和佛子岭群是北淮阳钼矿的理想矿源层,为区内钼矿提供了成矿物质。成矿元素与主微量元素的相关性分析表明Cu、W、Ag、Pb、Zn等元素受碎屑岩特征和氧化还原环境控制。     

Hydrothermal Mineralization on the Mesoproterozoic Passive Continental Margins of China： A Case Study of the Langshan-Zha＇ertaishan Belt, Inner Mongolia, China

Most ore-forming characteristics of the Langshan-Zha‘ertaishan hydrothermal exhalation belt, which consists of the Dongshengmiao, Huogeqi, Tanyaokou and Jiashengpan large-superlarge Zn-Pb-Cu-Fe sulfide deposits, are most similar to those of Mesoproterozoic SEDEX-type provinces of the world. The characteristics include: (1) All deposits of this type in the belt occur in third-order fault-basins in the Langshan-Zha‘ertaishan aulacogen along the northern margin of the North China Platform; (2) these deposits with all their orebodies hosted in the Mesoproterozoic impure dolomite-marble and carbonaceous phyllite (or schists) have an apparent stratabound nature; ores display laminated and banded structures, showing clear depositional features; (3) there is some evidence of syn-sedimentary faulting, which to a certain extent accounts for the temporal and spatial distribution and the size of the orebodies in all deposits and the formation of intrabed conglomerates and breccias; (4) they show lateral and vertical zonation of sulfides; (5) The Cu/(Pb Zn Cu) ratio of the large and thick Pb Zn Cu orebodies gradually decreases from bottom to top; and (6) barite is interbedded with pyrites and sometimes with sphalerite. However, some characteristics such as the Co/Ni radio of the pyrites, the volcanism, for example, of the Langshan-Zha‘ertalshan metallogenic belt, are different from those of the typical SEDEX deposits of the world. The meta-basic volcanic rock in Huogeqi, the sodic bimodal volcanic rocks in the Dongshengmiao and potassic bimodal-volcanic rocks with blastoporphyfitic and blasto-glomeroporphyritic texture as well as blasto-amygdaloidal structure in the Tanyaokou deposits have been discovered in the only ore-bearing second formation of the Langshan Group in the past 10 years. The metallogeny of some deposits hosted in the Langshan Group is closely related to syn-sedimentary volcanism based on the following facts: most of the lead isotopes in sphalerite, galena, pyrite, pyrrhotite and chalcopyrite plot on both sides of the line for the mantle or between the lines for the mantle and lower crust in the lead isotope composition diagram; cobalt content of some pyrites samples is much higher than the nickel content (Co/Ni= 11.91-12.19). Some volcanic blocks and debris have been picked out from some pyritic and pyrrhotitic ores. All Zn-Pb-Cu-Fe sulfide orebodies in these deposits occur in the strata overlying metamorphic volcanic rocks in the only ore-bearing second formation. In the Jiashengpan deposit that lacks syn-sedimentary volcanic rocks in the host succession only Pb and Zn ores occur without Cu ore, but in the Dongshengmiao, Tanyaokou and Huogeqi deposits with syn-sedimentary volcanic rocks in the host succession Cu ores occur. This indicates a relatively higher ore-forming temperature. The process of synsedimentary volcanic eruption directly supplied some ore-forming elements, and resulted in secular geothermal anomaly favorable for the circulation of a submarine convective hydrothermal system, which accounts for the precipitation of deep mineralizing fluids exhaling into anoxidic basins along the syn-sedimentary fault system in the Langshan-Zha‘ertai rift. The Dongshengmiao, Tanyaokou, and Huogeqi deposits hosted in the Langshan Group appear to be a transitional type of mineral deposit between SEDEX and VMS-types but with a bias towards SEDEX, while the Jiashengpan deposit hosted in the Zha‘ertai Group is of a characteristic SEDEX type. This evidence, together with other new discoveries of Mesoproterozoic volcanic rocks and the features of lithogeny and metallogeny of the Bayun Obo deposit in the neighborhood emphasize the diversity, complexity and uniqueness of the Mesoproterozoic Langshan-Zha‘ertal-Bayun Obo ore belt.