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Carbon and Strontium isotopes of Late Palaeozoic Marine Carbonates in the Upper Yangtze Platform,Southwest china

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Acta Geologica Sinica(English Edition) 1997年第3期71卷 282-292页

作者： Huang Sijing and Zhou Shaohua State Key laboratory of Oil and Gas Reservoir Geology and Exploitation,Chengdu University of Technology, Chengdu, 610059, Sichuan, china geological Institute, University of Copenhagen, Oster Voldgade 10,DK-13.0 Copenhagen K,Denmark State Key laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of Technology Chengdu 610059 Sichuan China geological Institute University of Copenhagen Oster Voldgade 10 DK-1350 Copenhagen K Denmark [?]Huang Sijing Born in February 1949 graduated from the Speciality of Sedimentology Beijing Graduate School Wuhan College of Geology in 1982 and got a master degree there. Now he is professor at the Institute of Sedimentary Geology Chengdu Institute of Technology and engaged in the teaching and study of sedimentology.

23. marine carbonate samples were collected from seven sedimentary sections ofthe entire late Palaeozoic (Permian, Carboniferous and Devonian) in the Upper Yangtze Plat-form, southwest china. Based on the absence of cathodoluminescence and very low Mn (gener-ally3.C and ^(87)Sr/^(86)Sr ratios versus geological time. The strontium data, consistent withother similar data based on samples from North America, Europe, Africa and other areas inAsia, support the notion of a global consistency in strontium isotope composition of marinecarbonates. The strontium data exhibit three intervals of relatively low ^(87)Sr/^(86)Sr ratios in thelate Middle Devonian to early Late Devonian, Early Carboniferous and Early Permian, corre-sponding to global eustatic high sea level stands. The lowest ^(87)Sr/^(86)Sr ratio recorded in theLate Permian was probably caused by substantial basalt eruptions in the Upper Yangtze Plat-form at the time. Three corresponding periods of relatively high δ^(13.C values at roughly the samethe intervals were caused by a relatively high rate of accumulation of organic carbon duringsea level rises at these times. The deposition of coal was probably responsible for the increaseof sea water δ^(13.C at other times. The δ^(13.C values drop dramatically near theDevonian/Carboniferous, Carboniferous/Permian and Permian/Triassic boundaries, con-sistent with other similar data, which further support the notion that geological time boundariesare associated with mass extinction and subsequent rejuvenation.

关键词： Upper Yangtze Platform Late Palaeozoic marine carbonate carbon and strontium isotopes

The Spatial Database of Digital geological Map of china at 1:1M

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The Spatial Database of Digital Geological Map of China at 1...

Formation mechanism and geochemical characteristics of shallow natural gas in heavy oil province,china

第五届全国地质制图与GIS学术讨论会

作者： DING Xiaozhong~1 HAN Kunying~(1,2) KE Xue~1 JU Yuanjing~1 PANG Jianfeng~1 1,Institute of Geology,chinese academy Geology Science,beijing {3.,china. 2,Faculty of Geosciences and Resources,china University of Geosciences,beijing 100083. china.

＜正＞The Spatial Database of the Digital geological Map of china at 1:1 M（V1.0）is made up of 64（whole and partial）map sheets,Each map sheet is represented by the rectangle of 6°longitude and 4°latitude,according to the international map standard at 1:1M,It mainly includes geological map database,geographical map database,metadata database et al,The geological map database is constructed on the basis of the 1:500 000 geological map database（1999）,and it absorbs the latest information and outcomes of 1:250 000,1:50000 geological mapping and special subject study,It contains strata,igneous rock,fault,special geological unit（eclogite, blueschist,ophiolite et al.）,isotope age determination and drill hole et al,According to the feature and requirement of the geological map database,the geographical map database was constructed on the basis of 1:1 M topographical map database（ArcInfo） which provided by National Geomatics Center of china,It contains boundaries,river system,inhabitant areas,transportation et al,The Spatial Database of Digital geological Map of china at 1:1M was built with MapGIS,ArcGIS and Access,The quantity of data is as large as 2.0GB,The spatial database management system possesses functions of map retrieval andquery,automatic map making and automatic legend drawing,The database system will serve on the network in the future,which should be updated and maintained regularly.

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Science china Earth sciences 2008年第S1期51卷 96-106页

作者： ZHU GuangYou,ZHANG ShuiChang,ZHAO WenZhi,WANG ZhengJun,LIANG YingBo, ZHAO XueFeng&ZHANG JingYan Petrochina Oil Geologic Lab Center,Research Institutes of Petrochina Exploration and Development,beijing 100083.china Petrochina Oil Geol Lab Ctr Res Inst PetroChina Explorat & Dev Beijing 100083 Peoples R China

Shallow gas reservoirs are distributed widely in chinese heavy oil-bearing *** present,shallow gas resources have opened up giant *** previous researches indicate the intimate genetic relationship between shallow gas and heavy *** gas resources are generated from crude oil degraded by anaerobic microscopic organism,it belongs to biogenic gas family of secondary genesis, namely heavy oil degraded *** gas resources are usually distributed in the upward position or the vicinity of heavy oil *** are mainly of dry gas,which are composed of methane and only tiny C2 + heavy hydrocarbon and relatively higher contents of nitrogen ***,methane isotopes are light,whose values are between biogenic gas and thermal cracking *** isotopes are heavy,which mixed possibly with thermogenic *** dioxide bear the characteristics of very heavy carbon isotope,so carbon isotopic fractionation effects are very obvious on the process of microscopic organism degradation crude *** heavy oil degraded gas formation,a very complex geological,geochemical and microbiological geochemical process,is the result of a series of reactions of organic matter-microbes and water-hydrocarbon,which is controlled by many factors.

关键词： heavy oil degraded gas shallow gas heavy oil biogenic gas anaerobic degradation

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九江—瑞昌地区铜矿床成矿地质特征

矿床地质 1988年第3期 15-28页

作者：邱小平裴荣富季克俭吴学汉中国地质科学院矿床地质研究所

本文以江西武山铜矿床为实例,探讨了热液矿床成矿作用某些方面的问题。同熔岩浆同化大量古老基底岩石物质后,侵位至浅层时驱动地下水循环,造成志留系围岩即矿源层的广泛钾硅化蚀变和退色,出现成矿元素近矿地球化学降低场。其中析出的铜... 详细信息

本文以江西武山铜矿床为实例,探讨了热液矿床成矿作用某些方面的问题。同熔岩浆同化大量古老基底岩石物质后,侵位至浅层时驱动地下水循环,造成志留系围岩即矿源层的广泛钾硅化蚀变和退色,出现成矿元素近矿地球化学降低场。其中析出的铜质随热液循环系统流经斑岩体中心而被加热蒸发浓集,形成含矿热液,并在有利成矿部位形成不同类型的矿床。文中强调了钾化蚀变在铜质迁移富集和成矿过程中的重要作用,当含矿热液钾离子浓度超过一定值时,铜质又可直接在斑岩体中沉淀形成斑岩铜矿。古铅和古锶同位素、氢、氧和碳同位素组成特征有力支持了这一推论。

关键词：地球化学场古铅和古锶同位素环形构造含矿热液对流循环系统元素相容性

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新田岭白钨矿床稳定同位素地质学研究

矿床地质 1988年第2期 39-48页

作者：毕承思吴静淑王美玉艾上铮中国地质科学院矿床地质研究所湖南省地矿局湘南地质队

本文以新田岭钙矽卡岩型白钨矿床为例,通过硫、碳、氢、氧稳定同位素研究所获得的成矿信息,探讨了矽卡岩白钨矿床的成因和物质来源。矿区氢氧同位素组成表明成矿深溶液属以岩浆水为主的混合岩浆水,后期变为大气降水;碳主要来源于地层碳... 详细信息

本文以新田岭钙矽卡岩型白钨矿床为例,通过硫、碳、氢、氧稳定同位素研究所获得的成矿信息,探讨了矽卡岩白钨矿床的成因和物质来源。矿区氢氧同位素组成表明成矿深溶液属以岩浆水为主的混合岩浆水,后期变为大气降水;碳主要来源于地层碳,混有岩浆碳;硫源为深源硫与地层硫的混合。稳定同位素结合地质年代学研究,表明该矿床系与燕山早期黑云母花岗岩有关的接触交代型矿床,钨主要来源于大陆地壳重熔化岗岩浆热液。

关键词：新田岭白钨矿床稳定同位素矽卡岩型

ISO TOPIC AGE AND STRATIGRAPHYCAL CORRELATION OF VOLCANIC ROCKS IN FINDES PENINSULA, KING GEORGE ISLAND

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chinese Journal of Polar Science 1992年第1期3卷 60-70页

作者： Zhu Ming, E Molan, Liu Xiaohan, Zheng XiangshenInstitute of Geology, Academia Sinica, beijing 100029, china

The ages of volcanic rocks from the Fildes Peninsula of King George Island, West Antarctica, have been determined with K-Ar, 3. Ar -40Ar, Rb -Sr methods by the authors. The results show that:a. The volcanism on the Fildes Peninsula has been from later Paleocene to early Middle Miocene; b. The formation time of the volcanic rocks of Jasper Hill Member belongs to later Paleocene becarse of the isotope age being 54Ma and 55Ma determined with Rb -Sr and 3. Ar -40Ar methods, respectively, c. The volcanic rocks of Agate Beach Member are the products of the volcanic activities during Early Eocene according to K -Ar isochron(45 -50Ma); d. The geological age of fossil Hill member is about Middle Eocene to Early Oligocene; e. the formation time of Block Hill member is probably early Middle Miocene.These data combining with the geological adn palaeontological evidences strongly support to best understand the stratigraphical correlation adn reveal the volcanism in studied area.

关键词： Fildes Peninsula isotopic age stratigraphical correlatiopn.

六氟化硫法测量3.S/3.S、3.S/3.S和3.S/3.S的方法研究

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矿床地质 1987年第4期 81-93页

作者：丁悌平黎红张国柄李延河李金城中国地质科学院矿床地质研究所

六氟化硫法是测量硫同位素组成的新方法。与传统的二氧化硫法相比,六氯化硫法有灵敏度高,准确度高,能同时测定δ3.S、δ3.S和δ3.S的的优越性。本文介绍了国内第一台同位素分析用的六氟化硫制样装置,并报导了对硫化银、黄铁矿、黄铜矿... 详细信息

六氟化硫法是测量硫同位素组成的新方法。与传统的二氧化硫法相比,六氯化硫法有灵敏度高,准确度高,能同时测定δ3.S、δ3.S和δ3.S的的优越性。本文介绍了国内第一台同位素分析用的六氟化硫制样装置,并报导了对硫化银、黄铁矿、黄铜矿、陨硫铁、方铅矿和闪锌矿等天然硫化物用六氟化硫法进行硫同位素测定的结果。结果表明,我们的装置和方法达到了国际上现有的水平,并在操作的方便性、可靠性及样品适用范围方面有所改进。

关键词：同位素硫同位素六氟化硫法六氟化硫

Early Paleozoic HP granulite-garnet peridotite associations in the south Altyn Tagh, NW china: Petrological and shrimp dating constraints

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Early Paleozoic HP granulite-garnet peridotite associations ...

2004年全国岩石学与地球动力学研讨会

作者： J. X. Zhang, F. C. Meng and Y. S. Wan 1. Institute of Geology, CAGS beijing, 10003., P. R. china 2. Department of {3. and Environmental sciences, S tanford University, Stanford, CA 943.5-2115, U. S. A)

＜正＞ Petrological investigations and shrimp dating were undertaken on a newly recognized HP granulite unit in the Bashiwake area of the south Altyn Tagh, western china. The HP granulite unit consists of bearing-kyanite felsic granulites, mafic granulites, sapphirine-bearing garnet clinopyroxenite and associated gamet peridotites. The predominant felsic granulites are quartz + Ternary feldspar （present perthite）-rich rocks containing various amounts of garnet, kyanite, plagioclase, biotite, rutile, spinel and corundum, and minor zircon, apatite. The mafic granulites enclosed directly in felsic granulites contain a peak assemblage of Grt + Cpxl + Ternary feldspar （now mesoperthite） + Qtz + Rt. The growth of new clinopyroxene （Cpxll）, Opx and PI in the matrix was related to decompression. The bearing-sapphirine garnet clinopyroxenite occurs as mafic layers in garnet peridotite. Petrographical data suggests a peak assemblage of Grt + Cpxl + Ky + Rt. The early kyanite is inferred by the symplectite of Spr + Cor + Pl ±Spl formed during decompression. Garnet peridotite contains an assemblage of Grt + Ol + Opx + Cpx. The fibrous kelyphites composed of Opx + Cpx + Spl around gamet suggests decompression. The peak assemblage of garnet+ kyanite +ternary feldspar + quartz in the felsic granulite give a P-T conditions of around 925-995℃and 20.0-24.5kbar, consistent with the estimates of T = 950-1020℃and P = 18.5-25.3.kbar obtained from the peak assemblage of mafic granulite, and T = 870-1050℃and P = 18.5-27.3.kbar of garnet peridotite within error. A medium-high pressure granulite facies overprint （780-820℃, 9.5-12 kbar） is well defined by the formation of secondary Cpxll±Opx + Pl at expense of garnet and early Cpx in the mafic graunlites, as well as by growth of Spl and PI at expense of garnet and ky in the felsic *** separated zircons from felsic granulite, sapphirine-bearing metabasites and garnet peridotite were measured on shrimp Ⅱiron microprobe. Most zircons are

关键词： HP granulite sapphirine-bearing garnet clinopyroxenite garnet peridotite south Altyn Tagh shrimp dating

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论阿尔泰3.伟晶岩脉的成因

矿床地质 1986年第4期 34-48页

作者：邹天人张相宸贾富义王汝聪曹惠志吴柏青中国地质科学院矿床地质研究所新疆有色金属公司新疆冶金地质研究所

我国阿尔泰伟晶岩区分布着10万余条伟晶岩脉,蕴藏着工业白云母、陶瓷长石、稀有金属、宝石和水晶等丰富的矿产资源。在众多的伟晶岩脉中,要数3.伟晶岩脉最享有盛名,凡知其一二的研究者,无不为它的奇丽壮观所惊讶。虽说如此,但对其发掘... 详细信息

我国阿尔泰伟晶岩区分布着10万余条伟晶岩脉,蕴藏着工业白云母、陶瓷长石、稀有金属、宝石和水晶等丰富的矿产资源。在众多的伟晶岩脉中,要数3.伟晶岩脉最享有盛名,凡知其一二的研究者,无不为它的奇丽壮观所惊讶。虽说如此,但对其发掘和认识也是经历了一段较长时间的。自193.年发现该伟晶岩田后,直到1946年牧民从地表的锂云母露头挖掘锂辉石和绿柱石时才发现了3.伟晶岩脉。随即进行了锂、铍矿物的开采,几年后才开始对锂、铍进行地质勘探。五十年代初期,K.A.弗拉索夫,A.A.别乌斯,H.A.索洛多夫,M.B.库兹明科等对3.伟晶岩脉作过矿物学、地球化学和矿床地质学的研究,发表了多篇论文和专著,

关键词：伟晶岩脉矿物组合结构单元铝硅酸盐矿物阿尔泰钠长石斜长石白云母矿物共生组合流体包裹体矿物包体铿辉石石英中