冠县引黄井渠结合灌区机井建设浅议

针对目前冠县引黄井渠结合灌区机井建设发展中主要存在机井发展不平衡、机井退化、老化、成井质量差等问题，因地制宜，提出了今后灌区发展机井建设的具体措施。     

试论碳酸盐岩上覆红土的形成模式及演化趋势

据长期对岩溶及红土化作用等的研究成果,本文全面系统地分析了碳酸盐岩上覆红土的形成及演化规律,提出了一个新的碳酸盐岩上覆红土的形成模式,进而深入阐明了碳酸盐岩上覆红土的演化规律及其在现代气候条件下的演化趋势等,在解决岩溶及红土学术界存在的碳酸盐岩上覆红土的形成、碳酸盐岩与上覆红土之间的相互关系及其发展演化规律等一系列重大疑难问题上向前迈进了一步,对相关学科的发展将产生积极的推动作用.     

泥岩盖层浓度封闭演化特征——以松辽盆地下白垩统泥岩为例

在研究泥岩盖层浓度封闭机理及形成条件的基础上,提出了抑制和替代两种浓度封闭作用。通过其形成及演化过程分析,研究了不同类型泥岩盖层浓度封闭性的演化特征。通过泥岩盖层浓度封闭形成期与气源岩大量排气期的匹配关系分析,探讨了研究泥岩盖层浓度封闭演化特征的意义。以松辽盆地三肇凹陷下白垩统青山口组和登娄库组二段泥岩盖层为例,研究了其浓度封闭演化特征及其在气藏形成中的作用。     

基于网络的机器人跨平台远程实时控制

提出了一种基于网络的多层次结构的跨平台远程实时控制框架，它由智能与人机交互层、运动规划层、运动控制层和伺服控制层构成，并基于该框架完成了一套单机器人远程实时控制系统，进行了远程视觉控制试验。试验表明，该控制系统运行稳定，实时性强。     

Fluid inclusions in granulites, granulitized eclogites and garnet clinopyroxenites from the Dabie–Sulu terranes, eastern China

Minor granulites (believed to be pre-Triassic), surrounded by abundant amphibolite-facies orthogneiss, occur in the same region as the well-documented Triassic high- and ultrahigh-pressure (HP and UHP) eclogites in the Dabie–Sulu terranes, eastern China. Moreover, some eclogites and garnet clinopyroxenites have been metamorphosed at granulite- to amphibolite-facies conditions during exhumation. Granulitized HP eclogites/garnet clinopyroxenites at Huangweihe and Baizhangyan record estimated eclogite-facies metamorphic conditions of 775–805 °C and ≥15 kbar, followed by granulite- to amphibolite-facies overprint of ca. 750–800 °C and 6–11 kbar. The presence of (Na, Ca, Ba, Sr)-feldspars in garnet and omphacite corresponds to amphibolite-facies conditions. Metamorphic mineral assemblages and P–T estimates for felsic granulite at Huangtuling and mafic granulite at Huilanshan indicate peak conditions of 850 °C and 12 kbar for the granulite-facies metamorphism and 700 °C and 6 kbar for amphibolite-facies retrograde metamorphism. Cordierite–orthopyroxene and ferropargasite–plagioclase coronas and symplectites around garnet record a strong, rapid decompression, possibly contemporaneous with the uplift of neighbouring HP/UHP eclogites.

Carbonic fluid (CO₂-rich) inclusions are predominant in both HP granulites and granulitized HP/UHP eclogites/garnet clinopyroxenites. They have low densities, having been reset during decompression. Minor amounts of CH₄ and/or N₂ as well as carbonate are present. In the granulitized HP/UHP eclogites/garnet clinopyroxenites, early fluids are high-salinity brines with minor N₂, whereas low-salinity fluids formed during retrogression. Syn-granulite-facies carbonic fluid inclusions occur either in quartz rods in clinopyroxene (granulitized HP garnet clinopyxeronite) or in quartz blebs in garnet and quartz matrices (UHP eclogite). For HP granulites, a limited number of primary CO₂ and mixed H₂O–CO₂(liquid) inclusions have also been observed in undeformed quartz inclusions within garnet, orthopyroxene, and plagioclase which contain abundant, low-density CO₂±carbonate inclusions. It is suggested that the primary fluid in the HP granulites was high-density CO₂, mixed with a significant quantity of water. The water was consumed by retrograde metamorphic mineral reactions and may also have been responsible for metasomatic reactions (“giant myrmekites”) occurring at quartz–feldspar boundaries. Compared with the UHP eclogites in this region, the granulites were exhumed in the presence of massive, externally derived carbonic fluids and subsequently limited low-salinity aqueous fluids, probably derived from the surrounding gneisses.     

Confirmation of an Early Cretaceous age for the Qihulin Formation in eastern Heilongjiang Province, China: constraints from a new discovery of radiolarians

The coal-bearing, alternating marine and non-marine Longzhaogou Group in eastern Heilongjiang, northeastern China, has long been considered as Jurassic, or mainly Jurassic, in age. However, recent studies have demonstrated that the ammonites and dinoflagellate cysts are of Early Cretaceous age. This has now been confirmed by new radiolarian evidence. The radiolarian fauna recovered from the upper Qihulin Formation of the Longzhaogou Group consists of nine poorly preserved species referable to nine genera. Novixitus is a Cretaceous genus, and the specimens of Archaeodictyomitra sp. and Xitus sp. recovered resemble A. vulgaris Pessagno and X. spicularius (Aliev), respectively.     

基于RDBMS地理数据一体化存储初探

介绍了地理数据存储方法的特点，进行了一体化数据结构设计，并分别对文件形式和数据库管理地理数据在存取效率和查询速度方面进行了比较和研究，证明了地理数据一体化存储的先进性。     

The Influence of Vegetation Cover on Summer Precipitation in China： a Statistical Analysis of NDVI and Climate Data

This study provides new evidence for the feedback effects of vegetation cover on summer precipitation in different regions of China by calculating immediate (same season), and one-and two-season lagged correlations between the normalized difference vegetation index (NDVI) and summer precipitation. The results show that the correlation coefficients between NDVI in spring and the previous winter and precipitation in summer are positive in most regions of China, and they show significant difference between regions. The stronger one-and two-season lagged correlations occur in the eastern arid/semi-arid region, Central China,and Southwest China out of the eight climatic regions of China, and this implies that vegetation cover change has more sensitive feedback effects on summer precipitation in the three regions. The three regions are defined as sensitive regions. Spatial analyses of correlations between spring NDVI averaged over each sensitive region and summer precipitation of 160 stations suggest that the vegetation cover strongly affects summer precipitation not only over the sensitive region itself but also over other regions, especially the downstream region.     

丽江7.0级地震重力前兆模式研究<

为了研究1996年丽江MＳ7.0地震前地震孕育过程或前兆表现，利用滇西地震实验场内高精度重复重力观测数据，结合地质调查和地球物理推断结果，并考虑到观测数据和模型粗差， 采用稳健或抗差-贝叶斯最小二乘算法和多断层位错模型，首次初步反演获得了研究区主要活动断裂滑动的时间变化分布．结果表明，1990～1997年断层运动的时间变化，较好地反映了1996年丽江MＳ7.0地震孕育过程．其主要前兆模式图象具有主震余震型特征，遵循地壳内部密度和地壳形变耦合运动模式（简称DD耦合运动模式）．      

云南地区地震宏观异常特征研究

经历史震例及近几年地震震前短临跟踪预报实践，对宏观异常进行深入剖析，认为：宏观异常内容和数量多少与震级有关；宏观异常不只是短临和临震异常信息。也有不少是中短期、短期异常信息；宏观异常分布在震中及附近地区；最早出现的宏观异常地点对未来地震震中有一定指示意义。