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Provenance of Carboniferous sedimentary rocks in the northern margin of Dabie Mountains,central china and the tectonic significance:constraints from trace elements,mineral chemistry and SHRIMP dating of zircons

Provenance of Carboniferous sedimentary rocks in the norther...

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中国科学院地质与地球物理研究所2.04学术年会

作者： Renwei Li~(a,*),Shuangying Li~b,Fuquan Jin~b,Yusheng Wan~c,Shukun Zhang~d a institute of Geology and Geophysics,Chinese Academy of sciences,{2. 10002.,{3. b Department of resource and Environment sciences,Hefei Industrial University,Hefei 2.3}02.,{3. c SHRIMP II Laboratory,institute of Geology,Chinese geological Academy of sciences.{2. {12.,{3. d institute of Geomechanics,Chinese geological Academy of sciences,{2. 100081,{3.

A suite of slightly metamorphosed Carboniferous sedimentary strata occurs in the northern margin of the Dabie Mountains, central *** consists,in ascending order,of the upper Huayuanqiang Formation(C),the Yangshan Formation(C),the Daorenchong Formation(C),the most widely distributed Huyoufang Formation(C) and the Yangxiaozhuang Formation (C).The provenance of the Carboniferous sedimentary rocks is constrained by the integration of trace elements,detrital mineral chemistry and sensitive high resolution ion microprobe(SHRIMP) dating of detrital zircons,which can help to understand the connection between the provenance and the Paleozoic tectonic evolution of the Qinling-Dabie *** trace element compositions indicate that the source terrain was probably a continental island *** tourmalines were mainly derived from aluminous and Al-poor metapelites and metapsammites,and some are sourced from Li-poor granitoids, pegmatites and *** garnets,found only in the uppermost Huyoufang Formation,are almandine and Mn-almandine garnets,indicating probable sources mainly from garnetiferous schists,and partly from granitoid *** detrital white Kmicas are muscovitic in the Huayuanqiang,Daorenchong and Huyoufang Formations,and phengitic with Si contents(p.f.u.) from 3.2. up to max.3.47-3.53.in the uppermost Huyoufang and the Yangxiaozhuang Formations,a meta-sedimentary source. Major components in the detrital zircon age structure for the Huyoufang Formation range from 506 to 3.3.Ma,centering on - 400 and - 480 Ma,which is characteristic of the Qinling and Eriangping Groups in the Qinling and Tongbai Mountains, central ***,the major source of the Carboniferous sedimentary rocks in the northern margin of Dabie Mountains was from the southern margin of the Sino-Korean Craton represented by the Qinling and Eriangping *** source area was an island-arc system during the Early Paleozoic that collided with the Sino-Korea plate towards the e

关键词： Provenance Detrital minerals Trace elements Zircon geochronology Carboniferous Dabie Mountains Central china

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Zircon SHRIMP U-Pb ages of the“Xinghuadukou Group”in Hanjiayuanzi and Xinlin areas and the“Zhalantun Group”in Inner Mongolia,Da Hinggan Mountains

Zircon SHRIMP U-Pb ages of the“Xinghuadukou Group”in Hanji...

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中国科学院地质与地球物理研究所2.07学术年会

作者： MIAO LaiCheng~(1+),LIU DunYi~2.ZHANG FuQin~1,FAN WeiMing~1,SHI YuRuo~2.& XIE HangQiang~1 1 institute of Geology and Geophysics,Chinese Academy of sciences,{2. 10002.,{3. 2.{2. SHRIMP Center,institute of Geology,Chinese Academy of geological sciences,{2. 10003.,{3.

A report is presented of SHRIMP zircon U-Pb dating data of meta-igneous and meta-sedimentary rocks of the Xinghuadukou Group(Xinlin-Hanjiayuanzi area,Heilongjiang Province) and meta-volcanic rocks of the Zhalantun Group(Zhalantun district,Inner Mongolia).The SHRIMP analyses show that the meta-igneous rocks from the Xinghuadukou Group formed at 506±10 -547±46 Ma,belonging to Early-Middle Precambrian,whereas the meta-sedimentary rocks yielded detrital zircons,with ages of 1.0 - 1.2.1.6 - 1.8 and 2.5 - 2.6 Ga,indicative of deposition age at least3.*** data suggest that both the Xinghuadukou and Zhalantun Groups formed during Cambrian and/or Neoproterozoic time,rather than Paleoproterozoic time as previously *** Precambrian inherited zircons in the meta-igneous rocks and numerous Precambrian detrital zircons in the meta-sedimentary rocks imply that these rocks were formed proximal to older *** is inferred that the Xinghuadukou and Zhalantun Groups represent Cambrian and/or Neoproterozoic volcano -sedimentary sequences formed in an active continental margin setting.

关键词： zircon SHRIMP metamorphic rock Xinghuadukou Group Zhalantun Group Da Hinggan Mountains

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PROVENANCE AND TECTONIC SETTING OF CLASTIC DEPOSITS IN THE DEVONIAN XICHENG BASIN,QINLING OROGEN,CENTRAL china

PROVENANCE AND TECTONIC SETTING OF CLASTIC DEPOSITS IN THE D...

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中国科学院地质与地球物理研究所2.06学术年会

作者： ZHEN YAN~1,ZONGQI WANG~2.TAO WANG~2.QUANREN YAN~2.WENJIAO XIAO~1,AND JILIANG LI~1 1 State Key Laboratorj’ of Lithospheric Evolution,institute of Geology and Geophysics,Chinese Academy of sciences,{2. 10002.,{3. 2.institute of Geology,Chinese Academy of geological sciences,{2. 10003.,{3.

The Qinling orogenic belt is one of world’s great collisional orogenic belts,which extends from the Pamirs-West Kunlun to the Korean peninsula and occupies a key position in understanding of the evolution and assembly of *** belt separates the North china and South china ***,thick Devonian clastic rocks,sandwiched between the Shangdan and Mianlue suture zones,are mainly infills of the Xicheng Basin and provide the principal sedimentary record of tectonism in the Qinling *** infills were subdivided into three subunits:the Upper Devonian Dacaotan Group,the Middle-Upper Devonian Shujiaba Group,and the Lower-Upper Devonian Xihanshui *** provenance and tectonic setting are critical to understanding not only the tectonic evolution of Asia but also the global aspects of collisional *** with Devonian strata in the eastern part of the Qinling orogen,the Xicheng Basin was not seriously modified by Mesozoic tectonism. Petrologic studies demonstrate that the Dacaotan Group consists mainly of feldspathic litharenite with abundant volcanic *** contrast,the Shujiaba and Xihanshui Groups contain more metamorphic and sedimentary fragments and fewer magmatics than other lithic fragments;these relations demonstrate that magmatic plutons were not extensively exposed at the time of {2. of these *** Q-F-L plots sandstones fall into the field of transitional arcs,but on *** Lm-Lv-Ls diagrams they plot in the fields of continental-arc and continental-suture *** presence of volcanic lithic grains in the sandstones suggests they were derived mainly from a continental arc. Major-element geochemistry of siltstones and mudstones demonstrate that most were derived from a continental arc,but some from an oceanic island ***-element geochemistry favors a continental-arc provenance mostly from felsic rocks.A high Cr content of siltstones and mudstones demonstrates that some mafic or ultramafic rocks were exp

关键词： clastic deposits Devonian Xicheng basin Qinling orogen

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稠油主要族组分对其粘度的影响

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新疆石油地质 2004年第5期25卷 512-513页

作者：朱战军林壬子汪双清石油大学资源与信息学院北京102249 中国地质科学研究院国家地质实验测试中心北京100081

对稠油主要族组分的含量与粘度关系进行了定量的实验研究。结果表明,饱和烃、芳烃、中性非烃、酸性非烃、胶质和沥青质的质量分数分别与稠油的粘度呈指数函数关系。稠油的粘度随饱和烃和芳烃质量分数的增加而呈指数函数关系降低,随中性... 详细信息

对稠油主要族组分的含量与粘度关系进行了定量的实验研究。结果表明,饱和烃、芳烃、中性非烃、酸性非烃、胶质和沥青质的质量分数分别与稠油的粘度呈指数函数关系。稠油的粘度随饱和烃和芳烃质量分数的增加而呈指数函数关系降低,随中性非烃、酸性非烃、胶质和沥青质质量分数的增加而呈指数函数关系升高,对稠油粘度影响重要程度的顺序为:胶质和沥青质>酸性非烃>中性非烃。其中,胶质和沥青质的质量分数是影响稠油粘度的最主要因素,这与其它实验研究结果是一致的。降低稠油中的中性非烃、酸性非烃、胶质和沥青质质量分数,将有效降低稠油的粘度。

关键词：稠油族组分粘度指数函数

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浅谈山东省的砖瓦粘土替代资源

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山东国土资源 2004年第3期20卷 40-42,45页

作者：张尚坤王虹王敏张增奇徐忠仪中国地质大学北京100037 山东省地质科学实验研究院山东济南250013 山东省地质矿产勘查开发局山东济南250013

山东省因烧制砖瓦破坏的耕地多达1千余公顷,本文从论述开发利用砖瓦粘土替代资源的意义入手,系统分析了砖瓦粘土替代资源的评价指标和山东省砖瓦粘土替代资源的分布及质量特征,从而为下一步评价、开发同类矿山提供了参考依据。

关键词：砖瓦粘土资源评价质量耕地保护山东替代资源

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Types, Metallogenic Environments and Characteristics of Temporal and Spatial Distribution of Copper Deposits in china

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Acta Geologica Sinica(English Edition) 1989年第1期63卷 79-92页

作者： Wang Zhitian and Qin Kezhang beijing institute of Geology for Mineral {2.s, CNNC, beijing Zhang Zhongmin beijing institute of Geology for Mineral {2.s CNNC Beijing

Based upon a comprehensive study of 12.0}copper deposits in china. this paper reaches the following conclusions: 1. The crust in china was solidified pretty late; with the accretion of the plate, the copper mineralization moved towards its margin in space and became successively younger in age. 2. The major copper ore types ever found in the world have mostly been discovered in china, in which the porphyry type seems to be the most important and the massive sulfide type in the transitional bed between marine clastic and carbonate rocks is clearly defined. 3. Carbonate strata are widespread in china and their deposition lasted for a long geological period, so the proportion of copper deposits occurring in them is large as compared with other parts of the world. 4. Seven metallogenic epochs can be recognized, in which the Mesozoic one plays the leading role and the middle(late) Palaeozoic and Cenozoic ones are next in importance. Mineralization was comparatively simple in the early geological period. and became diversified later on. In the early epochs copper deposits related to basaltic magmatism and metamorphosed marine sediments predominated, whereas in the later epochs those related to granitic magmatism and continental sedimentation were dominant. 5. There exist in china thirteen metallogenic provinces, of which the Lower Yangtze downwarping belt, Sanjiang fold system, Jiangnan axis and Xikang-Yunnan axis are of greater significance. 6. The crustal mobility in china was rather pronounced, the polycyclic evolution of the crust has resulted in such obvious phenomena as the inheritance of mineralization, the coexistence of various types and the superposition of different genetic types.

关键词： Metallogenic Environments and Characteristics of Temporal and Spatial Distribution of Copper Deposits in china Types

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deposition of Potash-Magnesium Salts in the Qarhan Playa, Qaidam Basin

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Acta Geologica Sinica(English Edition) 1986年第3期 79-90页

作者： Wu Bihao~(1)), Duan Zhenghao~(1)), Guan Yuhua~(2.) and Lian Wei~(2.) 1) institute of Mineral Deposits, Chinese Academy of geological {2., {3.. 2. institute of Chemical Ore Deposits, Ministry of Chemical Industry.

The Qarhan potash-magnesium salt deposit, which consists from east to west of four playa districts, namely Huobuxun, Qarhan, Dabuxun and Bieletan, may be divided from bottom to top into three salt beds(S1, S2.nd S3., with potash salts mainly occurring in S3. The paper lays emphasis on the evolutionary history of the {2. of Salt Bed S3.nd the modes of formation of potash salts in the Qarhan *** analysis of the data obtained from more than 170 boreholes and the geochemical studies on bromine, magnesium and calcium reveal the existence of four concentration stages and three dilution stages during the ormation of the Upper Salt Bed S3. In the process of concentration, evaporation of brine and precipitation of salt minerals dominated, which obeyed the regularity indicated by the phase diagram of the quaternary system Mg-Na-K/Cl-H2.. In the dilution stages, however, mixing of brines, dissolution of salts(especially the playa) and mechanical clastic {2. played the leading role. The prerequisite for mixing in the Qarhan salt deposit lies in that chloride type brine of the northeastern part coexists with magnesium sulfate type brine of the southwestern part in the same salt lake. The appearance of bassanite has verified the process of mixing. The dissolution refers to the partial dissolution of the salt beds originally deposited. Particularly in the last dilution process, approximately 2.0 km2.f the playa north of the Tuanjie Lake had been dissolved before a new-born lake took *** potash salts were formed in three ways:(1) The surficial brine of the Dabuxun lake coexistent with the playa had an intercompensational relationship with the intercrystalline brine in the playa. As a result, K+ions were collected into the lake, and layered Carnallite precipitated from lake brine during the seasons of evaporation, which was accelerated by the action of wind.(2. Disseminated potash-magnesium salts were formed by further concentration of intercrystalline bri

关键词： Qaidam Basin deposition of Potash-Magnesium Salts in the Qarhan Playa

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The Application of Fuzzy Evaluation based on GIS in Tianjin Urban Underground Space resource Appraisal

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地学前缘 2009年第S1期16卷 186-186页

作者： Fang Xu~(1,2.,Jian Shen~1 1.Department of City Geology,Tianjin institute of geological Survey,Tianjin {2.0191,china. 2.Faculty of {{2. and Safety Engineering,china University of Mining and Technology(beijing),beijing 10008{2.china

The exploitation and utilization of the city underground space resource is the important approach of building tri-dimensional and ecological cities, solving the environment,resource,and population crisis and continuing cities *** article, based on the introduction in detail the overview of regional geology,hydrogeologic condition,engineering geology,environmental geology,*** center city of Tianjin,establishes evaluating model of urban underground space resource based on GIS

关键词： geology information system fuzzy evaluation underground space resource appraisal Tianjin

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莺歌海盆地天然气差异输导特征及成藏意义

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天然气地球科学 2011年第4期22卷 642-648页

作者：金博张金川刘震李绪深中国地质大学能源学院北京100083 石油大学地球科学学院北京102249 中海石油有限公司湛江公司广东湛江524057

莺歌海盆地为典型的伸展—转换型盆地,其独特的地质条件决定了天然气具有差异输导特征,这种差异输导体现在盆地尺度、区带尺度和输导体尺度上,中央底辟构造带为泥—流体底辟树型输导系统,深部天然气沿底辟断裂垂向远距离运移到底辟顶部... 详细信息

莺歌海盆地为典型的伸展—转换型盆地,其独特的地质条件决定了天然气具有差异输导特征,这种差异输导体现在盆地尺度、区带尺度和输导体尺度上,中央底辟构造带为泥—流体底辟树型输导系统,深部天然气沿底辟断裂垂向远距离运移到底辟顶部及其周缘的浅层及中深层砂体中成藏。输导体主要以垂向断裂和裂隙为主,莺东斜坡带则为复合输导系统,输导体为砂体、不整合和断裂组成;莺东斜坡输导特征分段性明显,从北段、中段到南段输导性能逐渐增强,具有明显差异输导特征。伸展—转换型盆地的这种差异输导特征对天然气运聚成藏及天然气富集具有明显的控制作用,泥—流体底辟树型输导系统决定了中央凹陷带天然气具有环底辟优势聚集分布的特征,复合输导系统影响莺东斜坡带天然气运聚则具有多样性,天然气各段差异聚集特征明显。

关键词：伸展-转换型盆地天然气莺歌海盆地差异输导特征成藏意义

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Geophysical and geological Features of the Meso-Cenozoic Lower Yangtze Rift Zone

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Acta Geologica Sinica(English Edition) 1990年第4期64卷 363-378页

作者： Chen Shengzao institute of Geophysics, State Seismological Bureau, beijing Zhu Lupei institute of Geophysics State Seismological Bureau Beijing

It is clarified in this paper that the Lower Yangtze depression is a Meso-Cenozoic rift zone formed on thebasement of the Hercynian-Indosinian foreland basins. The rift zone is divided into eastern and western sectorsand is different in northern and southern parts. The rift zone in plane combination comprises *** or splitting rifts. The North Jiangsu-South Yellow Sea region represents a 'drift-type' rift basinwhose deposition center migrates gradually castward. The formation mechanism and dynamic evolution of therift basin are discussed from a viewpoint of the crustal fine-structure, with evidence in geology and geophysicsand analysis results of dynamic forces given.

关键词： Geophysical and geological Features of the Meso-Cenozoic Lower Yangtze Rift Zone

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