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A new method to reconstruct hydrocarbon-generating histories of source rocks in a petroleum-bearing basin——the method of geological and geochemical sections

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Chinese Science Bulletin 2000年第S1期45卷 35-40页

作者： XIAO Xianming LIU Zufa LIU Dehan SHEN Jiagui fu jiamo State Key Laborotary of Organic Geochemistry Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China

Via investigating typical Palaeozoic and Mesozoic petroleum-bearing basins in China by using thermal maturation theories of organic matter to improve the conventional Karweil’s method, a new method to reconstruct hydrocarbon-generating histories of source rocks has been suggested. This method, combining geological background with geochemical information makes the calculated VRo closer to the measured one. Moreover, it enables us to make clear the hydrocarbon generation trend of source rocks during geological history. The method has the merits of simple calculation and objective presentation, especially suitable to basins whose sedimentation and tectonic movements are complicated.

关键词： petroleum-bearing basin hydrocarbon-generating histories organic maturation.

Determination of linear alkylbenzenesulfonates in modern sediments from core Zhu-9 and its significance

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Chinese Science Bulletin 2000年第S1期45卷 80-85页

作者： Jianfang Hu Ping’an Peng Yushun Min Guoying Sheng jiamo fu Chinese Acad Sci Guangzhou Inst Geochem State Key Lab Organ Geochem Guangzhou 510640 Peoples R China

High performance liquid chromatography (HPLC) has the advantages of rapid analysis and high sensitivity. In the present study a suitable analytical condition has been established for HPLC, and the LAS in modern sediments from core Zhu-9 at the Pearl River mouth has been determined by HPLC. The concentrations of C12-LAS homologues are the highest. The sedimentation flux of C12-LAS was correlated with the average flow of the Xijiang and Beijiang rivers: the higher the flow rate, the larger the C12-LAS sedimentation flux. This shows that the more rapidly the river flows, the shorter the LAS will stay in freshwater, the less the extent of biodegradation, the larger the C12-LAS sedimentation flux in the core Zhu-9.

关键词： high performance liquid chromatography (HPLC) Pearl River mouth modern sediment linear alkylbenz- enesulfonates (LAS) sedimentation flux annual average flow.

Two kinds of Carlin-type gold deposite in southwestern Guizhou,China

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Chinese Science Bulletin 1999年第2期44卷 178-182页

作者： Hanping Zhuang Jialan Lu jiamo fu Dehan Liu Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou China

Based on the organic geochemical studies on two typical Carlin-type deposits in southwestern Guizhou, as well as the comparison between the two deposits in terms of geological background,igneous rock, paleo-oilfield, lithofacies and paleogeographical and geochemical features, two kinds of Carlin-type deposit were proposed: Lannigou Type and Getang Type. The former includes Lannigou,Banqi and Yata gold deposits. These deposits are hosted by turbidite, geographically situated in the southwest of the mineralized district, and related genetically to paleo-oilfields. The latter includes Getang, Zimudang and Dachang gold (mercury and thallium) deposits, situated geographically in the northwest of the mineralized district where Emeishan basalt commonly occurs. These deposits are associated with reduction of coaly organic matter.

关键词： genetic type Carlin-type gold deposit southwestern Guizhou.

Tricyclic aromatic diterpanes found in the Tertiary sediments and their geochemical significance

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Chinese Science Bulletin 2000年第S1期45卷 11-15页

作者： SHENG Guoying fu jiamo SONG Yitao PENG Ping’an State Key Laboratory of Organic Geochemistry Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China Research Institute of Geology Shengli Oil FieldDongying 257015China

One monoaromatic tricyclic diterpane and two aromatic tricyclic diterpanes were found in three low-maturity source rocks and five crude oils of the Tertiary Shahejie Formation in Shengli Oil Field. The compounds found include C19H28 (m/z 145, M+ 256) ring-C monoaromatic tricyclic terpane, C17H20 (m/z 209, M+ 224) and C18H22 (m/z 223,M+ 238) rings-B,C diaromatic diterpanes. The results show that these compounds are biomarkers of immature organic matter with a stability sequence of C18H22 > C17H20 > C19H28. The cleavage of ring-D of pentacyclic triterpanoids, such as oleanene, hopene, fernene, ursene, in the early stage of diagenesis may be one of the origin pathways of rings-B, C diaromatic tricyclic diterpanes.

关键词： monoaromatic tricyclic terpane diaromatic tricyclic diterpanes Tertiary Shahejie Formation immature source rocks crude oil.

Factors influencing the purification efficiency of photosynthetic bacteria

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Chinese Science Bulletin 2000年第S1期45卷 105-109页

作者： CHEN Fanzhong DING Aizhong fu jiamo SHENG Guoying State Key Laboratory of Organic Geochemistry Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China

One strain of photosynthetic bacteria (PSB) was isolated from substrate sludge of fresh-water fishpond. Influence of the use level of PSB culture solution, illumination condition, temperature, salinity, the use level of copper sulfate and dipterex on the purification efficiency was investigated. The results showed that the optimum use level of PSB culture solution was 10 mg/L, and the purification efficiency at illumination was higher than that at black, and if the temperature was lower than 15@, or the use level of sodium chloride, copper sulfate and dipterex were higher than 10 000 mg/L, 0.4 mg/L and 2.0 mg/L, respectively, the purification efficiency dropped distinctly.

关键词： photosynthetic bacteria (PSB) water purification influencing factor.

Chemical characteristics of PM_(2.5) during a typical haze episode in Guangzhou

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Journal of Environmental Sciences 2009年第6期21卷 774-781页

作者： TAN Jihua DUAN Jingchun HE Kebin MA Yongliang DUAN Fengkui CHEN Yuan fu jiamo Department of Environmental Science and Engineering Tsinghua University Beijing 100084 China Chinese Research Academy of Environmental Sciences Beijing 100012 China State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China

The chemical characteristics（water-soluble ions and carbonaceous species） of PM2.5 in Guangzhou were measured during a typical haze *** of the chemical species in PM2.5 showed significant difference between normal and haze *** highest contributors to PM2.5 were organic carbon（OC）,nitrate,and sulfate in haze days and were OC,sulfate,and elemental carbon（EC） in normal *** concentrations of secondary species such as,NO3^-,SO4^2-,and NH4^＋ in haze days were 6.5,3.9,and 5.3 times higher than those in normal days,respectively,while primary species（EC,Ca^2＋,K^＋） show similar increase from normal to haze days by a factor about ***/EC ratio ranged from 2.8 to 6.2 with an average of 4.7 and the estimation on a minimum OC/EC ratio showed that SOC（secondary organic carbon） accounted more than 36.6% for the total organic carbon in haze *** significantly increase in the secondary species（SOC,NO3^-,SO4^2-,and NH4^＋）,especially in NO3^-,caused the worst air quality in this ***,the result illustrated that the serious air pollution in haze episodes was strongly correlated with the meteorological *** the sampling periods,air pollution and visibility had a good relationship with the air mass transport distance;the shorter air masses transport distance,the worse air quality and visibility in Guangzhou,indicating the strong domination of local sources contributing to haze *** concentration of the secondary aerosol in haze episodes was likely due to the higher oxidation rates of sulfur and nitrogen species.

关键词： PM2.5 haze episode water-soluble inorganic ions organic carbon elemental carbon Guangzhou

Diurnal variations of polycyclic aromatic hydrocarbons associated with PM_(2.5) in Shanghai, China

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Journal of Environmental Sciences 2010年第3期22卷 389-396页

作者： Zeping Gu Jialiang Feng Wenliang Han Li Li Minghong Wu jiamo fu Guoying Sheng Institute of Environmental Pollution and Health Shanghai University Shanghai 200072 China. Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China

Forty-eight daily time interval PM2.5 samples were collected from December 2006 to January 2008 in an urban site in Shanghai, China. Concentrations and compositions of polycyclic aromatic hydrocarbons （PAHs） were analyzed with GC-MS to study the diurnal and seasonal variations and to identify the main emitting sources. The diurnal variation of the PAHs concentrations was greater in the late autumn and winter sampling days, and was greatly influenced by meteorological conditions such as wind speed and ambient temperature. The concentration of PAHs in the mornings （6：30–10：00） increased distinctly, and was high in the late autumn and winter sampling days, indicating the contribution from vehicle emissions during rush hours. The diurnal variation of the high molecular weight PAHs did not seem to be controlled by the shift of gas-particle partitioning due to temperature variation, instead, it could be indicative of the variation in the source. Statistical analyses showed that the concentrations of PAHs were negatively correlated with temperature and wind speed, and positively correlated with relative humidity. Diagnostic ratios of PAHs suggested mixed emission sources of petroleum and coal/biomass combustion for PAHs in the PM2.5 in Shanghai.

关键词： PAHs PM2.5 diurnal variation source identification

Composition and source of saccharides in aerosols in Guangzhou,China

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Chinese Science Bulletin 2009年第23期54卷 4500-4506页

作者： MA SheXia WANG ZhenZhen BI XinHui SHENG GuoYing fu jiamo State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou510640 China

The total suspended particles (TSP) collected during 2002 to 2003 in Wushan district and Liwan district in Guangzhou were analyzed for the saccharide compositions using gas chromatography-mass spectrometry (GC/MS) and N,O-bis-(trimethylsilye)trifluoroacetamide (BSTFA) derivatization. The results showed that the saccharides were composed of anhydrosaccharides consisting of levoglucosan, mannosan, galactosan and 1,6-anhydro-β-glucofuranose, and primary saccharides with sucrose as the most abundant, followed by αand β-glucose, αand β-fructose, mycose, and saccharide polyols. The highest saccharide levels occurred in autumn. The anhydrosaccharides came from biomass burning, whereas primary saccharides were the result of resuspention of surface soil dust associated with the agricultural activities and the decay of the falling leaves.

关键词：广州市荔湾区糖源组成气溶胶 β-葡萄糖中国氟乙酰胺总悬浮微粒

Geochemical significance of pyrrolic nitrogen compounds in various kinds of crude oils from the Tarim Basin

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Chinese Science Bulletin 1998年第16期43卷 1366-1370页

作者： Yangming Zhu jiamo fu Guoying Sheng Tingsheng Xiang Bowen Mei Jianghan Petr Inst Jingzhou 434102 Peoples R China Chinese Acad Sci Guangzhou Inst Geochem Canton 510640 Peoples R China

This is a report of the differences in abundances of pyrrolic nitrogen compounds and distribution of alkylated carbazoles among various oils from the Tarim Basin. At the same time, their geochemical significance is di... 详细信息

关键词： pyrrolic nitrogen compound crude oil primary migration organic matter type Tarim Basin.