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Nonmetallic mineral Deposits of China and Plate Tectonics

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Acta Geologica Sinica(English Edition) 1988年第4期1卷 407-421页

作者： Tao Weiping geological Company, State bureau of Building Material Industry, Beijing geological Company State Bureau of Building Material Industry Beijing

the Chinese continent is a component part of the present Eurasian plate. the history of its geologicaldevelopment is a process of the convergence of palaeo-plates. the oceanward migration of volcanic belts andvolcanic island-arcs, and the accompanying growth of the intracontinental rifts in the later stage. So theChinese continent abounds in nonmetal resources. Based on the plate-tectonic settings in which those depos-its were formed, the nonmetallic deposits can be generally classified into those related to the sutures andophiolites. those related to the volcanic island-arcs. those related to the back-arc epicontinental sea. those re-lated to the intracontinental rifts and those within the plate interior. they all show certain characteristicregularities of distribution. the evolutionary process of the Chinese continent is so complicated that somenonmetallic deposits have various origins and are characterized by multi-stage mineralization. multiplicityof types and superimposition of mineralization. All these are of great significance in deepening the under-standing of the formation and modes of occurrence of the nonmetallic deposits and in prospecting for min-eral resources.

关键词： Nonmetallic mineral Deposits of China and Plate Tectonics

Study on mineralization Age of Xiaoban Gold Deposit, Fujian Province

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Journal of China University of Geosciences 2002年第3期13卷 225-233页

作者： Chen Bailin Institute of Geomechanics, CAGS, Beijing 100081 Wu Ganguo Faculty of Earth Sciences and mineral Resources, China University of Geosciences, Beijing 10008{2.Zhang Da Institute of Geomechanics, CAGS, Beijing 100081 Huang Rensheng West Fujian geological Party of FBGMRE, Sanming {2.5000 Wu Jianshe Fujian {2. of geological and mineral Resources exploration, Fuzhou {2.0003 Institute of Geomechanics CAGS Beijing 100081 Faculty of Earth Sciences and mineral Resources China University of Geosciences Beijing 100083 West Fujian geological Party of FBGMRE Sanming 365000 Fujian bureau of geological and {2. Resources {3. Fuzhou 350003

the Xiaoban gold deposit is a large-size deposit recently found in middlearea of Fujian Province. It belongs to magmatic hydrothermal type occurred in Mayuan Groupmetamorphic rocks of Middle Proterozoic and is controlled by low angle fault (detachment)structures. the contents of Au in Mayuan Group metamorphic rocks, Caledonian-Indosinian deformedgranite and early Yanshanian granite are higher with Au enrichment coefficient of 2. 06-5.68, 5.11and 6.67 than those in other geological bodies. And the higher enrichment coefficients (>2. of Ag,S, Sn and Te are similar to those of gold ore. Meanwhile, the distribution of Au in Mayuan Groupmetamorphic rocks and early Yanshanian granite with a low D-value (0.58 and 0.67) is favorable togold {12.ization. REE characteristics of gold ore, ratios of (LREE/HREE), (La/Sm)_n, (Yb/Lu)_n,(La/Tb)_n and (Sm/Nd)_n are similar to Mayuan Group metamorphic rocks, only non or little normal Euabnormal of ore is dissimilar to metamorphic rocks. the δ(^(3.)S) of the gold ore, with a highhomogenization, is (-4.7X10^(-3. - (-2.7X 10^(-3.). the study of inclusion indicates 180-2.9℃ of{12.ization temperature, 3. 69 %-11. 81 % of salinities and 0. 869-0.991 g/cm^3.of densities of{12.ization fluid. Based on hydrogen and oxygen isotope (δ(^(18)O) = 11. 0 X 10^(-3. -11.7 X10^(-3., δ(D) = (-48 X 10^(-3.) - (-62.X 10^(-3.)) and initial w(^(87)Sr)/w(^(86)Sr) =0. 715,combining to the analysis of geological history, regional metamorphism and magamtic activity, theauthors confirm that the source for the ore fluid was mainly from magmatic, partly from metamorphicwater, and with a little influence of meteoric water. Isotopic dating made on Rb-Sr isochron age of182.Ma, by using alteration {12.s of gold-ores from the deposit, indicates that the{12.ization occurs in early Yanshanian epoch. this is close to the age of 187 Ma of the Anchunmagmatite with a similar alteration and gold {12.ization to the Xiaoban gold deposit. the age ofearly Yanshan

关键词： mineralization age early yanshanian epoch xiaoban gold deposit fujian

Conceptual design,data model and key techniques of“3. Assistant”

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中国有色金属学会会刊：英文版 2011年第S3期21卷 692-698页

作者： LI Qing-yuan1, ZHANG Xuan2. JIN Yang2. ZHOU Hui3. WANG Qian-jin3.WEI Zhan-yin1 1. Key Laboratory of Geo-Informatics, Chinese Academy of Surveying and Mapping, Beijing 10083., China 2. School of Geo-Science and Surveying Engineering, China University of Mining and Technology, Beijing 100083. China 3. School of Geomatics, Liaoning Technical University, Fuxin 12.0}00, China Key Laboratory of Geo-Informatics Chinese Academy of Surveying and Mapping Beijing 100830 China School of Geo-Science and Surveying Engineering China University of Mining and Technology Beijing 100083 China School of Geomatics Liaoning Technical University Fuxin 123000 China

Conceptual design, data model and key techniques of "Geo-engineer 3. assistant", an underground 3. GIS oriented to geology and mine application, were discussed. In particular, {2.e importance of high-order smoo{2.ing triangular pieces to surface's fine expression in geological modeling was emphasized. {2.e contour mode is {2.e most favorite mode of {2.e {2.ree modes about surface expression: DEM, TIN and contour. Topology in underground 3. modeling wi{2. CAGD was compared. From {2.e view of boundary and coboundary, which is soul of IS 19107 (Geographic information spatial schema), 3. underground topology was re-examined.

关键词： 3. assistant true 3. GIS fine expression of surface contour mode 3. topology

Medusoid Fossils from the Sinian Xingmincun Formation of Southern Liaoning Province

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Acta Geologica Sinica(English Edition) 1989年第1期63卷 11-22,103-104页

作者： Hong Zuomin, Huang Zhenfu, Yang Xinde, Lan Jing, Xian Bingcai, Yang Yajun, Regional geological Survey Party, bureau of Geology and {2. Resources of Liaoning Province, Jinzhou, Liaoning and Liu Xiaoliang Shenyang Institute of Geology and Resources, Chinese Academy of geological Sciences, Shenyang, Liaoning Fang Xinzhong 1Liang Yan Sun Tong Wang Fujun and Song Shao also took part in this work.

Abundant medusoid soft-bodied metazoan fossils have been found in the Sinian Xingmincun Formation(with an isotopic age of 650 Ma) at Qipanmo, Qidingshan and Yangtun of the Dalian-Jinzhou area, southern Liaoning Province; in addition, a number of macroscopic algal fossils have been discovered for the first time in the Getun Formation overlying the Xingmincun Formation. Medusoid fossils include 3.genera and 6 species(all of which are new). Judging from their biological characters, these medusoid fossils are considered to have an intimate affinity with the Ediacara fauna in the terminal Precambrian of Australia, as their characters are close to each other. the authors suggest that these medusoids and the Edicara fauna might be the products of the same period. the discovery of the medusoid fauna in the Xingmincun Formation marks an important event in the evolution of the terminal Precambrian organisms in China, and it is of major practical significance in the study of the Sinian System of China and the correlation of the Sinian strata of northern and southern China.

关键词： Medusoid Fossils from the Sinian Xingmincun Formation of Southern Liaoning Province

thE NORthWARD PROPAGATION OF thE ARC TECTONICS OF thE NORthEAST PAMIR AND NORthWEST TARIM BASIN

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地学前缘 2000年第S1期7卷 90-91页

作者： Li Yingzhen 1,Shen Jun 2.(1 Xinjiang Seismological bureau, Urumqi 83.011,China 2.{2. bureau of China Seismological bureau, Beijing 10002.,China)

the geological, geographic and seismicity data indicate that three arc tectonic belt developed on the northeast Pamir, which was the south Pamir arc, the north Pamir arc and the external Pamir arc from south to north. In addition to these three belts, there are two nascent arc tectonic belts developed in its fore\|deep depression, the Kashi depression in the northwest Tarim basin, which is the northward propagation of the arc tectonics of northeast *** south Pamir is an ancient folded belt, composed of the Proterozoic metamorphic layers and igneous complex. It was pushed northward since the collision between the India and Asia, and uplifted since the end of the early Tertiary. the elevation of the Plateau is 4800～5{32.0m, and several intermontane basins distributed in the plateau. At its northeast boundary is the Kalakorum right lateral strike slip fault. Strong strike slip earthquakes occurred along this fault. In the hinterland of the plateau, several normal faulting earthquakes occurred,which are consistent with the extensional dynamic environment of the south Pamir. Deep earthquakes occurred under the 70km depth crust of south Pamir. the N—S cross section of the focal depth show that the earthquake occurred within the south Pamir crust are lower than 70km, and the deep earthquakes with depth of 100～2.0km occurred in the crystal basement of Tarim basin which are under\|thrusting southward into the root of the south Pamir.

关键词： Pamir Tarim basin arc tectonics seismicity

Sulfur isotope geochemistry of the Lemachang independent Ag deposit, northeastern Yunnan——A concurrent discussion on the mechanism of sulfur isotope equilibrium between barite and freibergite below 3.0℃

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Chinese Science Bulletin 1999年第S2期44卷 227-230页

作者： DENG Hailin~1, LI Chaoyang~1, ZHOU Yunman~2.and WANG Congwu~2.1. Open Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002. China 2. No.3.Braneh of No.1 Geology Party, Yunnan bureau of Geology and {2. Resources, Xundian 6552.5, China Open Laboratory of Ore Deposit Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China No. 3.Branch No. 1 Geology Party Yunnan Bureau of Geology and Mineral Resources Xundian 655205 China

IN the study of hydrothermal deposits sulfur isotopes bear much information about the source of sulfur,ore-forming temperature, the evolution of ore-forming fluids and the mechanism of metallogenesis. Todetermine whether sulfur isotopes reach equilibrium between fluids and sulfur-bearing minerals precipitated from the former and among the sulfur-bearing minerals is the key to the application of sulfur isotopegeochemistry to {12. problems. As it has been commonly accepted that sulfur isotopic equilibrium could not be reached between sulfate and sulfide below 3.0℃, little attention has been paid to thepossible mechanism of sulfur isotope equilibrium between sulfate and sulfide below 3.0℃. However, this note presents an example to show sulfur isotope equilibrium between barite and sulfate

关键词： sulfur isotope Lemachang independent Ag deposit barite freibergite sulfur isotope equilibrium below 3.0℃.

X射线荧光法在火山岩区多金属矿床上勘查金矿的研究

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黄金 1988年第6期 31-34页

作者：邓中林青海地矿局第二地质队

本文阐述了X射线荧光法测金的物理基础和地质、地球化学依据。实验表明:在火山岩多金属矿床上,用轻便型X射线荧光仪测量与金相关的钡的特征,X射线强度能够估算粉样中的金含量,由此得出的金含量与化学分析金含量之间的误差,均达到部颁分... 详细信息

本文阐述了X射线荧光法测金的物理基础和地质、地球化学依据。实验表明:在火山岩多金属矿床上,用轻便型X射线荧光仪测量与金相关的钡的特征,X射线强度能够估算粉样中的金含量,由此得出的金含量与化学分析金含量之间的误差,均达到部颁分析误差标准;在原生露头上,用该方法能够准确地圈定富金地段。

关键词：金矿金属矿物指示元素荧光法多金属矿床

the Geoscience Transect from Xiangshui,Jiangsu Province to Mandal,Inner Mongolia

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Acta Geologica Sinica(English Edition) 1992年第1期66卷 1-21页

作者： Ma Xingyuan Liu Changyuan Liu Guodong Jiang Minxi Institute of Geology,State Seismological bureau,Beijing Geophysical exploration Pafrty,State Seismological bureau,Zhengzhou. 2.nstitute of Geology State Seismological Bureau Beijing. 3.eophysical exploration Party State Seismological Bureau Zhengzhou.

the Xiangshui to Mandal geoscience transect, which has a total length of 1,2.0 km, extends diagonally,from SE to NW, across the Sino-Korean plate and its ancient continental margin, passing through nine tectonicunits: the Subei-Jiaonan terrane, West Shandong block, North China rift basin, Taihang-Wutai block, Ordosblock, Hu-Bao (Hohhot-Baotou) Basin, Yinshan block and Inner Mongolian fold system. the graphic display of the transect is compiled according to the Guidelines for the Global GeoscienceTransect (GGT) Project on the basis of an integrated study of all available geological, geochemical andgeophysical data, thus bringing light to the process of cratonization of the Sino-Korean plate and its relation-ship with the transitional zone of the ancient continental margin, and the features of intraplate structures pro-duced by subsequent tectonic modifications and intraplate dynamics.

关键词： the Geoscience Transect from Xiangshui Jiangsu Province to Mandal Inner Mongolia

Sm-Nd isotopic geochronologyof the Yinachang Fe-Cu-REE deposit at Wuding, Yunnan Province and its genetic significance

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Science Bulletin 2005年第18期 124-130页

作者： YANG Yaomin1,2.3. TU Guanzhi1, HU Ruizhong1 & SHI Xuefa2.1. Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002. China 2. the Key Laboratory of Marine Sedimentology and Environmental Geology, the First Institute of Oceanography, SOA, Qingdao 2.6061, China 3. Northwest geological exploration {2., CNNC, Xi’an 710054, China

Sm-Nd isotope systematics of ores and fluorites places precise time constraints on REE mineralization of the Yinachang Fe-Cu-REE deposit in Yunnan Province which occur in the Proterozoic Kunyan group. the ore-related fluorites contain high abundant REE, and show a strong enrichment of LREE and a positive Eu anomaly, which is in marked contrast to post-ore fluorites that are HREE en-riched. the Sm-Nd isochron ages of the ores and fluorites are 153.±40 Ma and 1617±100 Ma, respectively, and calculated εNd(t) are ?4.6 and ?3.2. Accurate age determinations of the mineralization demonstrate that the REE mineralization took place during early Mesoproterozoic. Together with other {3. evidence from the ore deposit, the primary REE-bearing ore-forming fluids are suggested to have been derived from the Enriched Mantle, and the Yinachang Fe-Cu-REE ore deposit is of volcanic exhalation- hydro-thermal sedimentary origin. this study also imply that the sudden large-scale REE mineralization in the Mesoprotero-zoic epoch may have been induced by alkaline-rich anoro-genic magmatism which occurred at marginal rifts of the continent in the Mesoproterozoic.

关键词： Kunyang rift Yinachang Fe-Cu-REE deposit fluorite Sm-Nd isotopic systematics Mesoproterozoic.