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Preliminary discussion of low-salinity hydrothermal fluid mineralization

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chinese Science Bulletin 1999年第S2期44卷 141-143页

作者： ZHENG Mianping R & D center of Saline Lake and Epithermal Deposits, chinese academy of geological sciences, beijing 10003.,{3. R and D center of Saline Lake and Epithermal Deposits Chinese Academy of Geological Sciences Beijing 100037 China

REVIEWING the history of the geology of mineral deposits, we may find that in the first fifty years of thetwentieth century the magmatic-hydrothermal theory of ore deposition was the most prevalent, whichgave impetus to the development of the geology of mineral deposits. In the 1960s, the drilling of theSalton Sea geothermal field, California, the United States, and discovery and study of the Red Sea seafloor hot brines and large amounts of metal sulfides removed therefrom led to the rise of the brine theory ofmineral deposition, thus elucidating the origin of massive metal sulfides and promoted the discoveryand exploration of metal deposits. After the 1970s and the 1980s, through a study of the hydrothermal ore fluids of modern hotsprings. geologists came to realize that there exist low-salinity hydrothermal ore fluids other than

关键词： low-salinity hydrothermal fluid mineralization.

PALAEOECOLOGICAL, PALAEOCLIMATOLOGICAL AND PALAEOGEOGRAPHICAL STUDY OF QUATERNARY FORAMINIFERAL FAUNA IN china

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海洋地质与第四纪地质 1983年第1期 16-36页

作者： Lin Jingxing (institute of geology, chinese academy of geological sciences,{3.)

Quaternary foraminiferal faunas in china fall into five distinct categories according to palaeo-ecologicafeatures,namely:***-Bohai foraminiferal *** Pleistocene foraminiferal fauna in ***-epicontinental foraminiferal ***-East china Sea foraminiferal ***-South china Sea foraminiferal faunaBy correlating world zoogeographical zones of planktonic foraminifera and analysing the diversity in Quaternary foraminifera and ostracoda found in the North china Plain,it is possible to plot a graph of changes inpalaeo-climate since the Quaternary ***-ecological studies of Holocene foraminifera on the Fujianseaboard in southern china showed that Holocene foraminifera can be broken down into three climatic *** findings of these studies providea a basis for discusssion of the palaeo-geographic variations occurted inthe Palaeo-Bohai,the Palaeo-East china Sea and the Palaeo-South china *** the basis of the distributionof standard foraminifera in time

关键词： In PALAEOECOLOGICAL,PALAEOCLIMATOLOGICAL AND PALAEOGEOGRAPHICAL STUDY OF QUATERNARY FORAMINIFERAL FAUNA IN china

Quartz-Ferberite Oxygen Isotope Geothermometer and Its geological Applications

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Acta Geologica Sinica(English Edition) 1992年第3期66卷 271-281页

作者： Ding Tiping Liu Yushan Wan Defang Liu Zhijian Li Jincheng Zhang Guilan institute of Mineral Deposits, chinese academy of geological sciences, beijing institute of Mineral Deposits Chinese Academy of Geological Sciences Beijing

Experiments for oxygen isotope exchange between ferberite and water were carried out and the followingequation on oxygen isotope fractionation between ferberite and water against temperature was obtained:Combining this equation with the equation of Clayton et al. (1972) on oxygen isotope fractionation be-tween quartz and water, an equation on oxygen isotope fractionation between quartz and ferberite was ob-tained:The Bigeleison-Mayer function method was used to calculate the oxygen isotope fractionation betweenquartz and ferberite. The theoretical curve obtained agrees with the experimental calibration results quite wellin the temperature range of *** above calibrated equation has been used in 5 world famous tungsten deposits to determine their tem-peratures of formation. The results show that the temperature range for an idividual deposit determined by thisgeothermometer agrees with those obtained from fluid inclusion determination and other isotopegeothermometers.

关键词： geothermometer oxygen isotope quartz--ferberite

Barium Anomaly and Its Geochemical Significance

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Continental Dynamics 1999年第1期 84-87页

作者： WANYusheng institute of geology, chinese academy of geological sciences, beijing 10003. ,{3.

In the MORBnormalized multi element variation diagram given by Pearce(1983. ,the depletions of Ba relativeto Rb and Th are differentfor *** the case ofthe Eu anomaly ,the Ba anomaly can be defined and calculated . The Ba and Eu anomalies show close positive relationships with each other. The geochemicalsignificance ofthe Ba anomaly is discussed in this paper. Key words: Ba anomaly ; Eu anomaly; GeochemistryBarium Anomaly and Its GeochemicalSignificance WANYusheng institute of geology, chinese academy of geological sciences, beijing 10003. ,{3. Abstract In the MORBnormalized multi element variation diagram given by Pearce(1983. ,the depletions of Ba relativeto Rb and Th are differentfor *** the case ofthe Eu anomaly ,the Ba anomaly can be defined and calculated . The Ba and Eu anomalies show close positive relationships with each other. The geochemicalsignificance ofthe Ba anomaly is discussed in this paper.

关键词： Ba anomaly Eu anomaly Geochemistry

Electron Microscopic Study of Manganese Minerals in the Polymetallic Nodules from the Central Pacific Ocean

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Acta Geologica Sinica(English Edition) 1993年第1期67卷 33-41,123-124页

作者： Xiao Xuqi institute of Mineral Deposits, chinese academy of geological sciences, beijing Guo Shiqin{3. Ocean Mineral Researches and Development Association (COMRA), beijing Jiang Minxi institute of Mineral Deposits Chinese Academy of Geological Sciences Beijing China

Manganese minerals in the polymetallic nodules from the Central Pacific Ocean were studied using electron microscopy. The principal Mn minerals, being vernadite and todorokite, exhibit different electron diffraction patterns and morphological features. According to its morphological feature, todorokite shows three phases: fibrous, lamellar and lath-shaped. Both vernadite and todorokite are authigenic minerals. While vernadite was mainly precipitated directly from the relevant solution by microbiological oxidation, todorokite was separated from the solution chemically without the help of microbe. Hence, these two minerals show a close genetic relation.

关键词： electron microscope polymetallic nodules vernadite todorokite

中国大陆地壳“镶嵌与叠覆”的结构特征及其演化

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地质通报 2004年第9期23卷 986-1004页

作者： LI Jinyi(institute of geology, chinese academy of geological sciences,{3., china) 中国地质科学院地质研究所北京10003.

初步探讨了中国大陆地壳“块带镶嵌多层叠覆”的结构特征和多阶段的构造演化过程。中国大陆地壳新元古代中期以来的一级构造单元有中朝、塔里木、扬子、敦煌4个陆块和中央、西北、东北、西南、东南5个造山区(带)。中朝陆块的形成源于古... 详细信息

初步探讨了中国大陆地壳“块带镶嵌多层叠覆”的结构特征和多阶段的构造演化过程。中国大陆地壳新元古代中期以来的一级构造单元有中朝、塔里木、扬子、敦煌4个陆块和中央、西北、东北、西南、东南5个造山区(带)。中朝陆块的形成源于古元古代期间发生的古大陆裂解;扬子、塔里木和敦煌陆块的形成源于新元古代早期发生的古大陆裂解。西北造山区的形成源于古生代晚期洋盆关闭、大陆碰撞并叠加新生代陆内再造山;东北造山带的形成过程包括古生代碰撞造山及中生代增生、碰撞造山;中央造山带至三叠纪大陆碰撞才最后形成并叠加有新生代再造山;东南造山带的形成经历了古生代至新生代的多次造山作用;西南造山带主要是中—新生代造山作用的产物。这些单元都具有“块带镶嵌多层叠覆”的结构特征和多阶段构造演化的特点。中国大陆地壳的形成与演化可以划分为太古宙—古元古代、中元古代—新元古代早期、新元古代中期—古新世和始新世以来4个构造阶段,每个阶段都对应不同的超大陆裂解-聚合旋回。其中新元古代中期以来的地壳形成演化与全球洋陆格局中的古亚洲洋、古特提斯洋、古太平洋、特提斯洋和太平洋5个动力学体制有关,相应地可以归结为古亚洲、古特提斯、古太平洋、特提斯和太平洋5个造山域。

关键词：中国大陆地壳块带镶嵌多层叠覆超大陆裂解-聚合旋回动力学体制造山域

Sorption behavior of U(VI), ^(23.)U(VI) and ^(23.)U(VI) onto fracture-filling clays in Beishan granite, Gansu: Application to selecting the site of high-level radwaste repository in china

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Science china Earth sciences 2005年第10期48卷 1649-1655页

作者： MIN Maozhong1,2, LUO Xingzhang3. WANG Ju4, JIN Yuanxin4 & WANG Rucheng1 1. Department of Earth sciences, State Key Laboratory of Mineral Deposit Research, Nanjing University, Nanjing 210093. china 2. center of Materials Analysis, Nanjing University, Nanjing 210093. china 3. Department of Environmental Science and Engineering, Nanjing University, Nanjing 210093. china 4. beijing geology institute, Nuclear Industry, beijing 100029, china Nanjing University Nuclear Industry

The first results of sorption experiments of U(VI), 23.U(VI) and 23.U(VI) onto original (unpurified) fracture-filling clays from No.1 monzonitic granite intrusion, Beishan area, Gansu Province, china are reported. The monzonitic granite intrusion is a potential location for a high-level radwaste (HLW) repository in china. The present experimental results show that the maximum U(VI) sorption reached 92% at near-neutral pH and the distribution coefficient (Kd) was 1226 mL/g. A high sorption capacity of the fracture-filling clays in host rock on radioactive ele-ments is necessary for HLW deep geological disposal repository. No preferential sorption of 23.U onto the clays was found. Finally, the sorption of U(VI) onto the clays was also modeled using a surface complexation model.

关键词： HLW geological disposal repository, granite, uranium, radionuclide, clay, sorption.

Geochemical characteristics and contemporary metallogenetic process of hot springs in Tengchong

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chinese Science Bulletin 1999年第S2期44卷 29-30页

作者： HU Yunzhong, WANG Haiping and ZHANG Tianle institute of Mineral Deposits, chinese academy of geological sciences, beijing 10003.,{3. institute of Mineral Deposits Chinese Academy of Geological Sciences Beijing 100037 China

1 The Geochemical characteristics of hot spring systems THE characteristic element abundance value/concentration coefficients of the geochemical characteristics ofTengchong are: Au-6.10/4.07, As-7.13.3.96, Sb-1.25/6.23. Pb-3..87/2.47, Th-20.25/2.11, Cd-0.57/2.83. Li-40/2, Ti-1.3./2.89 (abundance unit: Au-1 × 10-9, the others-1 ×10-6 ). Generally, these 8 elements can reflect the characteristics of the metallogenetic process with magmatic hydrothermal activities in the area. The abundances of other 3. elements measured are similar tothose of the crust. Granite in the area belongs to the calc-poor granite. Compared with the granite abundance in theworld, Cr, Co, Th, Pb and Cd are the concentrated elements. Their change in the regional distributionshows that Ca, Na, Th, Zn and REE increase from north to south, but Mg, Ti, Ba, Cu, Li, V, Zr,

关键词： hot spring system hydrothermal activity contemporary metallogenetic process.

Hydrocarbon accumulation in network and its application in the continental rift basin

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Science china Earth sciences 2008年第S2期51卷 88-100页

作者： PANG XiongQi1,2,CHEN DongXia1,ZHANG ShanWen3.HAO Fang1,LIU Zheng1,LIU KeYu3.SONG GuoQi4,WANG YongShi4,LUO XiaoRong5 & WU XiaoChun61 State Key Laboratory of Petroleum Resource and Prospecting,chinese University of Petroleum,beijing 102249,china 2 Basin and Reservoir {3.,chinese University of Petroleum,beijing 102249,china 3.SINOPEC Shengli Oilfield,Dongying 257051,china 4 CSIRO Petroleum,P. O. Box 113.,Bentley,WA 6102,Australia 5 institute of geology and Geophysics,chinese academy of Science,beijing 100029,china 6{13. National Petroleum Corporation,beijing 100724,china State Key Laboratory of Petroleum Resource and Prospecting Chinese University of Petroleum Beijing China Basin and Reservoir center Chinese University of Petroleum Beijing China SINOPEC Shengli Oilfield Dongying China CSIRO Petroleum Bentley Australia institute of geology and Geophysics Chinese Academy of Science Beijing China china National Petroleum Corporation Beijing China

The concept of hydrocarbon accumulation in network was presented on basis of the overall analysis of the formation and evolution characteristics of the continental faulted basin and of the systemic re-search on the major controlling factors on the hydrocarbon accumulation. The hydrocarbon accumu-lation in network can be defined as hydrocarbon accumulation in a three-dimensional network system which is constituted by the hydrocarbon migration passages under multiple dynamics,following the hydrocarbon generation from source rocks. The research shows that the hydrocarbon accumulation in network is composed of four elements,i.e.,hydrocarbon source (source rock kitchen),hydrocarbon accumulation terminal (trap),network pathway connecting source and terminal (transporting system),and network potential driving hydrocarbon migration in the network pathway (migration dynamics). Compared with other networks,hydrocarbon accumulation in network has three basic characteristics: the irreversible geological process of material and information flow in the network; the loss of material and information in the flow process in the network; the multiple dynamics in the flow process. Interac-tion of all the elements in the geological process can be called hydrocarbon accumulation in network. There are three basic models for hydrocarbon accumulation in network,that is,hydrocarbon accumu-lation in the network source area,hydrocarbon accumulation in the network pathway,and hydrocarbon accumulation in the network terminal. The key in the application of the hydrocarbon accumulation models in network in practice is to confirm the major accumulation stage and the function range of the four elements controlling the hydrocarbon firstly,to predict the profitable accumulation region by su-perposition of the favorable areas confirmed by four elements consequently,and to evaluate the oil-bearing property of the trap as well as confirm drilling targets. This paper takes the Dongying De-pression in the

关键词： continental rift basin hydrocarbon accumulation theory hydrocarbon network hydrocarbon accumulation in network Bohai Bay Basin