Stegana castanea species group (Diptera,Drosophilidae) from the Oriental region

The Stegana castanea species group is established as a morphological group within the subgenus Steganina, based on two known and six new species from the Oriental region: Stegana (Steganina) bacilla Chen and Aotsuka, 2004 Chen, HW and Aotsuka, T. 2004. A survey of the genus Stegana Meigen from southern Japan (Diptera, Drosophilidae). J Nat Hist., 38: 2779–2788. [Taylor & Francis Online], [Web of Science ®] , [Google Scholar]; S. castanea Okada, 1988 Okada, T. 1988. Family Drosophilidae (Diptera) from the Lund University Ceylon Expedition in 1962 and Borneo collections in 1978–1979. Entomol Scand (suppl)., 30: 109–149.  [Google Scholar]; S. (S.) reni sp. nov.; S. (S.) tiani sp. nov.; S. (S.) tongi sp. nov.; S. (S.) wangi sp. nov., S. (S.) weiqiuzhangi sp. nov. and S. (S.) xui sp. nov. from southern China. A key to all the species of this group is provided.     

川东北部香溪群的地震相和有利储层展布

川东北部地区香溪群是以河流相为主的沉积。北东向主河流发育带是该河流沉积体系的骨架。下凹充填、丘形反射地震相分布带正是主河流带的地震响应。砂岩储层的物性和有利储层带的分布均受此河流沉积体系的影响。勘探中应充分考虑主河流发育带控制有利储层带展布这一认识。     

黔东湘西寒武纪碳酸盐斜坡上的风暴沉积

黔东万山－湖南新晃地区的寒武系中风暴沉积发育。风暴沉积的岩石类型主要是砾屑石灰岩和砂屑石灰岩，砾屑石灰岩从细砾屑石灰岩到巨砾屑石灰岩均有，但以中砾屑石灰岩最多，砾屑大都呈板状，但有的呈近等轴状。其排列方式呈平行状和迭瓦状。砂屑石灰岩具递变层理、平行层理、丘状层理、单向交错层理等。砾屑石灰岩和砂屑石灰岩夹于大套暗色中薄层碳酸盐岩中，为斜坡环境中的风暴沉积。     

山东临沂煤田本溪组Profusulinella带层位的发现及其地质意义

本文首次证实山东临沂煤田本溪组的层位均属于Profusulinella带,而华北地区本溪组普遍发育的Fusulina—Fusulinella带则在本区缺失。文中共记述了蜓类7属42种和亚种,其中包括6个新种。另外还对其在古地理、构造方面的意义作了讨论。     

Linear sand ridges on the outer shelf of the East China Sea

Based on the latest full-coverage high-resolution multi-beam sounding data, the distribution of the linear sand ridges on the outer shelf of the East China Sea （ECS） is studied with quantitative statistical analysis. The study area can be divided into the northeastern part and the southwestern part. Sand ridges in the northeastern area, trending 116°N, show obvious linear character and shrink to the inner shell Sand ridges in the southwestern area, trending 120°N -146°N, tend to have net form. Sand ridges gradually become sand sheets in the center part of study area. Sand ridges are distributed landward to the isobath of 60m, distributed seaward to the water depth of 120 m in the northeast and 150 m in the southwest. Immature sand ridges are observed at water depth of 130-180 m in the southwestern depressions. The acoustic reflection properties of the internal high.angle inclined beddings of the sand ridges are analyzed based on the typical seismic profiles close to the research area. Lithological analysis and dating of 4 boreholes and 12 cores indicate that the widely distributed transgressive sand layer with high content of shell debris which was formed in the early-middle Holocene is the main composition of the linear sand ridges on the outer shelf of the ECS. The dominating factor in formation, developing and burying of the sand ridges is the variation of water depth caused by sealevel change and the rate of sediment supply. In 12400 aBP the cotidal lines of the M2 tidal component were closely perpendicular to the strike-directions of the sand ridges in the study area, and the tidal wave system during 12000-8000 aBP might play a key role in the formation of the linear sand ridges which are widely distributed on the outer shelf of the ECS.     

准噶尔盆地阜东斜坡带石树沟群地震相分析及沉积体系预测

对准噶尔盆地阜东斜坡带石树沟群首次进行了系统地震相分析,根据地震相单元的内部反射结构和外部几何形态及其他参数,划分出6种具有重要指相意义的地震相.依据沉积体系展布的基本模式以及少量井孔资料,将地震相转换为沉积相,预测了石树沟群沉积体系的分布,指出三角洲前缘相带是最有利的岩性圈闭发育带.     

模糊评价法在东湖水环境质量评价中的应用

介绍了模糊数学评价法,以清徐东湖水质评价为例,说明了模糊数学评价方法在环境质量评价中的应用。     

交通噪声对暨南大学环境的影响

目的：考察中山大道交通噪声对暨南大学北区以及华南快速干线交通噪声对暨南大学东区的影响。方法：采用24h和1周连续监测方法，分别统计监测点的等效声级Leq、昼间等效声级Ld、夜间等效声级Ln。结果：北区监测点的Ld为61．6dB，Ln为58．7dB；东区3个监测点的Ld分别为63．9、61．8、60．2dB，Ln分别为58．7、51．6、47．5dB，均超过了国家标准中的1类标准，1周连续监测结果显示，北区和东区居民所受到的噪声污染是长期而不间断的。结论：暨南大学东区和北区噪声普遍超标。随着城市机动车辆数的继续增加，形势将越来越严峻。     

济南市快速通道体系建设初探

在对国内外快速通道体系初步研究的基础上，结合济南市城市规划目标的定位和远景目标规划，分析了济南市发展快速通道体系的局限因素，提出了济南市快速通道体系的设想；并依据国内外智能交通体系的发展，提出了济南市在迎接智能交通方面应对措施。     

济南市生态环境质量现状评价

在建立评价指标体系的基础上 ,运用层次分析法与综合指数法对济南市生态环境质量现状进行了考核和评估 ,将全市生态环境质量划分为不同生态水平的 5个等级 ,为各不同区域不同生态问题的识别、生态保护目标及对策的制定提供科学的依据 .