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International Journal of Sediment research 2011年第1期26卷 1-14页

The suspended sediment flux field in the Yellow and East China Seas(YECS) displays its seasonal variability.A new method is introduced in this paper to obtain the flux field via retrieval of ocean color remote sensing data,statistical analysis of historical suspended sediment concentration data,and numerical simulation of three-dimensional(3D) flow *** components of the sediment flux field include(i) surface suspended sediment concentration inverted from ocean color remote sensing data;(ii) vertical distribution of suspended sediment concentration obtained by statistical analysis of historical observation data;and(iii) 3D flow field modeled by a numerical *** the improved method,the 3D suspended sediment flux field in the YECS has been *** comparison with the suspended sediment flux field solely based on the numerical simulation of a suspended sediment transport model,the suspended sediment flux field obtained by the improved method is found to be more *** 3D suspended sediment flux field from ocean colour remote sensing and in situ observation are more closer to the ***,by quantitatively analyzing the newly obtained suspended sediment flux field,the quantity of sediment erosion and deposition within the different regions can be *** sediment exchange between the Yellow Sea and the East China Sea can be *** mechanism of suspended sediment transport in the YECS can be better *** particular,it is suggested that the long-term transport of suspended sediment is controlled mainly by the circulation pattern,especially the current in winter.

关键词： Suspended sediment flux field Seasonal variability Yellow and East China Seas Regression equation Numerical simulation

Helium isotope investigation on magnetic reversal boundaries of loess-paleosol sequence at Luochuan, central chinese Loess Plateau

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chinese Science Bulletin 2007年第17期52卷 2407-2412页

作者： DU XueQing1,6, WANG YongHong2, REN JianGuo3, YE XianRen4 & LU HuaYu5,1 1 State Key Laboratory of Loess and Quaternary Geology, institute of Earth Environment, chinese academy of sciences, Xi’an 710075, China 2 College of Marine Geosciences, Ocean university of China, Qingdao 266003, China 3 National Natural Science Foundation of China, Beijing 100085, China 4 Lanzhou research Center for petroleum and Natural Gas Resources, institute of Geology and Geophysics, chinese academy of sciences, Lanzhou 730000, China 5 Key Laboratory of Coast and Island development, School of Geographic and Oceanographic sciences, Nanjing university, Nanjing 210093, China 6 graduate university of chinese academy of sciences, Beijing 100049, China State Key Laboratory of Loess and Quaternary Geology Institute of Earth Environment Chinese Academy of Sciences Xi''an 710075 China

Extraterrestrial particles have higher 3He/4He ratios than those of terrestrial sediments ( > 100 Ra versus < 0.03 Ra, where Ra is the 3He/4He ratio normalized to the atmospheric value of 1.4×10?6). The inter- planetary dust particles (IDPs), which are very rich in 3He, continuously bombard the Earth and can accumulate in deposits. IDPs sedimentation rate changes can significantly influence 3He concentration in the Earth surface sediments. Since IDPs are not easy to detect in terrestrial deposits, measuring helium isotopes is a helpful approach to examine changes in IDPs. Helium concentration and helium isotopic composition magnetic substances and the quartz particles were examined for helium concen- tration and helium isotopic ratio. Results show that the 3He/4He ratio and the 3He concentrations of the magnetic substances are clearly higher than those of the bulk samples and the quartz particles, and, the 3He/4He ratio of the extracted magnetic substances is also higher than that of the average level of the Earth’s crust. The higher helium content in the magnetic fractions can be explained by an influx of IDPs.

关键词：中国黄土高原古土壤氦同位素行星际尘埃颗粒反方向磁化

The role of reservoir mediums in natural oil cracking:Preliminary experimental results in a confined system

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chinese Science Bulletin 2010年第33期55卷 3787-3793页

作者： XIAO QiLin1,2,SUN YongGe1,3 & ZHANG YongDong1,2 1 State Key Laboratory of Organic Geochemistry,Guangzhou institute of Geochemistry,chinese academy of sciences,Guangzhou 510640,China 2 graduate Schools,chinese academy of sciences,Beijing 100049,China 3 institute of Environmental and Biogeochemistry(eBig),Zhejiang university,Hangzhou 310027,China State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China graduate Schools Chinese Academy of Sciences Beijing 100049 China institute of Environmental and Biogeochemistry (eBig) Zhejiang University Hangzhou 310027 China

Large amounts of data regarding the influence of temperature and pressure on the thermal stability of crude oil have been pub-lished;however,the role of reservoir mediums has received little *** involving oil cracking in the presence of montmorillonite,illite,calcite,quartz and water were conducted in closed gold tubes to investigate the effects of these reservoir mediums on oil *** was done by screening variations in the chemical and stable carbon isotopic components of nC10+ and gasoline-range hydrocarbons(nC8-)present in various *** indicated that reservoir mediums have an active role in oil cracking under experimental *** concentrations of nC10+ in the cracked residues progressively decreased in systems containing oil+water+illite,oil+water+montmorillonite,oil+water,oil+water+quartz and oil+water+*** comparison with the system containing oil+water,our results indicated a retardation effect for oil cracking in systems in the presence of illite and montmorillonite,and an acceleration effect on oil destruction in systems in the presence of calcite and ***10+ became increasingly depleted in 13C in systems with oil+water+illite,oil+water+calcite,oil+water+montmorillonite,oil+water+ quartz and oil+*** obvious correlation was observed between concentrations and stable carbon isotopic components of nC6-nC8 and nC10+ in the individual *** discrepancies in chemical and stable carbon isotopic components of nC6-nC8 and nC10+ in the pyrolyzed residues highlighted the important role of reservoir mediums to control carbon-carbon cleavage of nC10+ and then the isomerization,cyclolization and aromatization reactions;as well as governing the occurrence and thermal destruction of nC6-nC8 under experimental *** research may have critical implications in reconstructing chemical kinetic models for natural oil cracking.

关键词：裂解作用实验条件密闭系统原油裂解水库介质天然同位素组成

Chlorite cement and its effect on the reservoir quality of sandstones from the Panyu low-uplift,Pearl River Mouth Basin

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petroleum Science 2011年第2期8卷 143-150页

作者： Chen Guojun Du Guichao Zhang Gongcheng Wang Qi Lv Chengfu Key Laboratory of petroleum Resources research Institute of Geology and Geophysics Chinese Academy of Sciences Lanzhou 730000 China CNOOC research Center Beijing 100027 China graduate university of the chinese academy of sciences Beijing 100049 China

Based on porosity and permeability measurements, mercury porosimetry measurements, thin section analyses, SEM observations, X-ray diffraction （XRD） analysis and granulometric analyses, diagenetic features of reservoir sandstones taken from the Zhuhai formation in the Panyu low-uplift of the Pear River Mouth Basin were examined. This study shows that chlorite cements are one of the most important diagenetic features of reservoir sandstones. The precipitation of chlorite was controlled by multiple factors and its development occurred early in eo-diagenesis and continued till Stage A of middle diagenesis. The precipitation of chlorite at the early stage was mainly affected by the sedimentary environment and provenance. Abundant Fe- and Mg-rich materials were supplied during the deposition of distributary channel sediments in the deltaic front setting and mainly in alkaline conditions. With the burial depth increasing, smectite and kaolinite tended to be transformed into chlorite. Smectite cements were completely transformed into chlorite in sandstones of the studied area. Volcanic lithics rich in Fe and Mg materials were dissolved and released Fe2＋ and Mg 2＋ into the pore water. These cations precipitated as chlorite cements in middle diagenesis in an alkaline diagenetic environment. Chlorite coatings acted as porosity and permeability, thus helping preserve cements in the chlorite cemented sandstones. The reservoir quality of chlorite cemented sandstones is much better than sandstones without chlorite cements. Chlorite cements play an important role in the reservoir evolution that was mainly characterized by preserving intergranular porosity and forming better pore-throat structures of sandstones.

关键词： Chlorite cement diagenesis reservoir quality Panyu low-uplift Pearl River Mouth Basin

Soil Evolution Features of Debris Flow Waste-Shoal Land

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Journal of Mountain Science 2009年第2期6卷 181-188页

作者： CUI Peng GE Yonggang ZHUANG Jianqi WANG Daojie Key Laboratory of Mountain Hazards and Land Surface Processes Chinese Academy of Sciences Chengdu 610041 China institute of Mountain Hazards and Environment Chinese Academy of Sciences Chengdu 610041 China graduate university of chinese academy of sciences Beijing 100049 China

The reclamation and utilization of debris flow waste-shoal land plays an important role in the mitigation and control of debris flow hazards, which thus contributes a lot to the exploitation of insufficient land resources in mountainous areas and the reduction of losses caused by debris flow. The aim of this paper is to discuss the features and mechanism of soil evolution of debris flow waste-shoal land so as to search for the available modes of its reclamation and utilization. The Jiangjiagou Ravine, a typical debris flow ravine, was selected to study soil evolution features of debris flow waste-shoal land based on the analysis of soil physicochemical properties and soil microstructure. It was found that the soil evolution rates of debris flow waste-shoal land varied with different modes of reclamation. For the land which had been reclaimed for less than 10 years, soil evolved most rapidly in paddy fields, and more rapidly in dry farmland than in naturally restored waste-shoal land. For the land which had been used for more than 10 years, the soil evolution rates of dry farmland, naturally restored waste-shoal land and paddy farmland decreased in the file. For the same utilization period of time, significant differences were recognized in soil evolution features under different modes of reclamation. Analysis data showed that soil clay content, soil thickness, the psephicity of skeleton particles and contents of microaggregates (<0.02 mm) in paddy farmland were all highest. Soil nutrients and porosity of dry farmland were better than those of paddy farmland and naturally restored waste-shoal land, and those of paddy farmland were superior to those of naturally restored waste-shoal land. Paddy farmland characterized by rapid pedogenesis, stable evolution and high utilizability was the priority candidate for the reclamation and utilization of debris flow waste-shoal land.

关键词： Debris flow waste-shoal land Reclamation mode Utilization time Soil properties Soil microstructure

Ethylene oligomerization by novel iron(Ⅱ) diimine complexes/MAO

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chinese Science Bulletin 2002年第19期47卷 1616-1618页

作者： WANG Hang, YAN Weidong, JIANG Tao, LIU Binbin, XU Wenqing, MA Jianjiang & HU YouliangState Key Laboratory of Engineering Plastics, Center for Molecular Science, institute of Chemistry, chinese academy of sciences, Beijing 100080, China graduate Student of State Key Lab. of Eng. Plastics Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China Grad. Student chinese Acad. of Sci. Beijing 100039 China Inst. of Polymer Science/Engineering School of Chemical Engineering Hebei University of Technology Tianjin 300130 China Dept. of Petrochemical Engineering Daqing Petroleum Institute Anda 151400 China Res. Inst. Dushanzi Petrochem. Co. PetroChina Xinjiang 833600 China

Two novel Fe(Ⅱ) diimine complexes have been synthesized. In combination with MAO, they generate active catalytic systems that oligomerize ethylene with both high catalytic activity and high selectivity for a-olefins. The effects of substituents on the aryl ring, reaction temperatures and molar ratios of Al/Fe on catalytic activity and product distribution are studied.

关键词： late-transition-metal catalysts ethylene oligomerization α-olefin.

A review on restoration of seismic wavefields based on regularization and compressive sensing

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A review on restoration of seismic wavefields based on regul...

中国科学院地质与地球物理研究所第11届（2011年度）学术年会

作者： Jingjie Cao~(ab),Yanfei Wang~(b*),Jingtao Zhao~(ab) and Changchun Yang~b ~aKey Laboratory of petroleum Resources research,institute of Geology and Geophysics, chinese academy of sciences,P.O.Box 9825,Beijing 100029,P.R.China graduate university of chinese academy of sciences,Beijing 100049,P.R.China

Restoration of seismic data as an ill-posed inverse problem means to recover the complete wavefields from sub-sampled *** seismic data are typically sparse in the curvelet domain,this problem can be solved based on the compressive sensing *** three major problems are modelling, sampling and solving *** first construct l and l minimization models and then develop fast projected gradient methods to solve the restoration *** seismic data interpolation/restoration,the regular sub-sampled data will generate coherence aliasing in the frequency domain,while the random subsampling cannot control the largest sampling ***,we consider a new sampling technique in this article which is based on the controlled piecewise random sub-sampling *** simulations are made and compared with the iterative soft thresholding method and the spectral gradient-projection *** reveals that the proposed algorithms have the advantages of high precision,robustness and fast calculation.

关键词： wavefield recovery curvelet transform compressive sensing inverse problems ill-posedness projected gradient method

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天然气中氢气的地化特征及油气成藏效应

天然气工业 2004年第11期24卷 31-33页

作者：刘国勇张刘平杨振平教育部石油天然气成藏机理重点实验室中国科学院地质与地球物理研究所中油国际阿尔及利亚公司

在油气成因理论研究以及新型能源的研制和开发领域中,氢气都占有极其重要的地位。在含油气盆地、构造活动带、地热区和火山岩区都已经发现富含氢气的天然气藏。研究表明,这些天然气中氢气含量极不均一,而且其同位素D值远远高出一般天然... 详细信息

在油气成因理论研究以及新型能源的研制和开发领域中,氢气都占有极其重要的地位。在含油气盆地、构造活动带、地热区和火山岩区都已经发现富含氢气的天然气藏。研究表明,这些天然气中氢气含量极不均一,而且其同位素D值远远高出一般天然气中烷烃的氢同位素D值;这些氢气主要来源于幔源氢气、高温下H2S或CH4的分解、水岩反应和水在辐射作用下的分解等。由于其较强的还原性,深部的氢气在上升的过程中也可以与盆地的流体或岩石发生反应,促进烃源岩生烃或者改善已形成油气的品质。氢气也可以作为工业原料或新型燃料直接应用。

关键词：地化特征油气成因构造活动天然气藏油气成藏火山岩含油气盆地生烃幔源水岩反应

A MATLAB program for 1D strain rate inversion

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A MATLAB program for 1D strain rate inversion