西非科特迪瓦盆地深水区油气地质特征及成藏主控因素

科特迪瓦盆地位于西非几内亚湾北部,为典型的转换型大陆边缘盆地,是目前世界深水油气勘探的热点区域。以科特迪瓦盆地的构造演化、油气地质条件以及油气田最新发现为基础,采用油气地质综合分析方法,明确了盆地深水油气成藏的主控因素,可以为进一步明确勘探目标提供帮助,并为同类型盆地的油气勘探提供借鉴。研究表明,目前盆地共发育3套烃源岩,3套储层及多套盖层。盆地内最主要的深水成藏组合为上白垩统自生自储式和下生上储式成藏组合,其烃源岩为上白垩统森诺曼阶-土伦阶厚层海相页岩;储层主要是土伦阶-森纳阶深水浊积扇砂体;盖层主要是上覆新生界厚层海相页岩。盆地深水油气成藏主控因素为深水浊积扇和断层,二者相匹配共同控制油气成藏。      

铜在牙鲆(Paralichthys olivaceus)组织蓄积、分配及排放的研究

采用暴露实验方法 ,研究了海水中Cu在牙鲆 (Paralichthysolivaceus)内脏、肌肉、鳃组织内吸收、积累和排放规律 ,海水中总有机碳 (TOC)浓度、配体种类对铜吸收的影响及其与海水表观络合容量 (ACuCC)的关系。结果表明 ,Cu浓度为 0 .5mg/L时 ,各组织内Cu蓄积量随暴露时间增加而增大 ,第 1 3天均达吸收平衡 ,此时Cu蓄积量 (mg/kg)为内脏 971 .89>肌肉 2 0 4 .99>鳃 90 .0 4。染毒 1 3天牙鲆在清洁海水中排放结果表明 :随排放时间增加各组织Cu蓄积量下降 ,第 8天接近排放平衡。此时各组织Cu排出率为 :肌肉 89% >鳃 86.5 % >内脏团 83.7%。海水中TOC浓度、种类对牙鲆Cu蓄积有明显影响 ,当TOC浓度相同时 ,孔石莼分泌物比牙鲆分泌物更能降低Cu在牙鲆组织内吸收和蓄积量 ;当TOC种类相同时 ,随TOC浓度升高 ,各组织铜蓄积量均明显下降 ,表明海水TOC能降低牙鲆组织对Cu的吸收和积累。ACuCC随TOC浓度增加有明显上升趋势 ,并与TOC浓度呈线性相关。     

无固相聚合物钻井液在香格里拉普朗铜矿区复杂地层钻进中的试验与应用

针对香格里拉普朗铜矿区所遇到的复杂地层,通过室内试验研究,确定采用植物胶作为主剂、聚丙烯酰胺和LP作为辅剂得到无固相聚合物钻井液,在钻探矿区ZK0409钻孔中的绳索取心钻进中使用,成功解决了该矿区复杂地层的钻进问题。探讨了无固相聚合物钻井液的最佳配方,并分析了其在复杂地层钻进中的作用机理。     

我院边坡锚固工艺的开发应用

本文介绍从工程实践中总结出的一套行之有效的岩土锚固工程施工工艺,施工技术,项目管理等方面的经验。     

Phenotypic correlations of somatic and gonad traits of sea urchins Glyptocidaris crenularis in two sampled periods: first insight into its breeding and aquaculture

Prior knowledge of the correlations among commercially important traits in Glyptocidaris crenularis can be used to guide development of breeding and aquaculture programs for this species. We evaluated the phenotypic correlations between somatic and gonadal traits in G. crenularis during two sample periods （October 2010 and April 2011）. The coefficients of variation （CV%） for body weight （BW）, redness （a＊）, yellowness （b＊）, gonad wet weight （GW）, and gonad index （GI） were 〉20% in both periods, while those of other traits were very low. GW was significantly correlated with somatic traits （diameter, height, and body weight） in both periods, although the correlation coefficients ranged from 0.473 to 0.636 （P〈0.01）. Gonad moisture content （GC）, a＊, and lightness （L＊） were not significantly correlated with somatic traits （P〉0.05）. The color trait b＊ was negatively correlated with somatic traits （test diameter, test height, and body weight） during the period when the gonads were well developed （April 2011, P〈0.05）. We observed little difference in the nature of the phenotypic correlations between the two sample periods. The high variation in the somatic and gonad weight traits in G. crenularis suggests there is considerable potential for selective breeding. However, our results suggest that gonad quality traits cannot be selected indirectly by selecting for body weight. Our study provides an insight into the method for improving the breeding and aquaculture of G. crenulari.     

Correlation analyses of covering and righting behaviors to fitness related traits of the sea urchin <Emphasis Type="Italic">Glyptocidaris crenularis</Emphasis> in different environmental conditions

Complex marine benthic environments shape a number of ecologically important behaviors in sea urchins, including covering and righting behaviors. The present study correlated covering and righting behaviors to a series of fitness-related traits in sea urchins. Righting response time of Glyptocidaris crenularis was significantly positively correlated with body size, but significantly negatively correlated with food consumption. Covering behavior was not significantly correlated with test diameter, test height or body weight, but covering response time was negatively correlated with body weight. A significantly negative correlation was found between righting response time and covering response time. Glyptocidaris crenularis showed a significantly positive correlation in covering response time with and without exposure to poured sand, but no significance in covering ability (number of shells used to cover). The present study provides new insight into internal mechanisms and evolutionary drives of covering and righting behaviors of sea urchins.     

公共交通导向发展的研究进展与展望

作为一种试图协调公共交通和土地利用良性互动的城市开发模式,公共交通导向发展（transit-oriented development, TOD）强调以公共交通站点为导向进行城市土地利用的高密度开发,得到了世界上诸多国家的认可和成功实践,并逐渐成为中国国土空间治理的一项重要政策工具。为了满足TOD本土化应用与实践,亟需深入梳理TOD相关理论及研究案例。秉承理论和数据分析双向驱动的理念,从理论内涵、类型划分、综合效应测度、系统优化等4个方面入手,系统回顾了TOD国内外的相关研究进展,总结了TOD研究面临的理论与方法挑战,形成了对中国国土空间治理的启示,以期为制定科学有效的TOD规划策略提供参考。     

汕尾电厂煤港工程泥沙问题研究

通过实测水文泥沙资料、岸滩冲瘀演变分析、泥沙计算、泥沙物理模型试验等手段对汕尾电厂煤港工程泥沙问题进行了研究。通过研究，了解了煤港工程海域--后江湾的水文泥沙基本特征、泥沙来源和泥沙运动规律，找出了煤港工程泥沙淤积成因，预报了煤港工程方案的泥沙淤积量，从泥沙淤积角度论证了煤港建设的可行性。     

某钢厂西渣场开发利用工程A场挡墙及地基处理

本文介绍了如何在松散渣铁层及河岸漂卵石层中快速成孔，形成较大直径的旋喷注浆桩，以及就地取材，利用渣铁做挡墙砌块粗骨料及墙体充填材料，既节约了大量外运的混凝土骨料，又增大了渣库库容，为渣铁的开发利用提供了一个新的范例。