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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 resources, CNNC, Beijing Zhang Zhongmin Beijing institute of geology for mineral resources CNNC Beijing

Based upon a comprehensive study of 123 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

Ore-forming fluid and mineralization of Caijiaying and Dajing polymetallic ore deposits

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Science china Earth Sciences 2004年第2期47卷 97-107页

作者： WANG Lijuan,WANG Jingbin, WANG Yuwang & ZHU Heping1. Key Laboratory of mineral resources, institute of geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, china 2. Beijing institute of geology for mineral resources, Beijing 100012, china Correspondence should be addressed to Wang Lijuan (email: wlj@***) Key Laboratory of mineral resources Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China Beijing institute of geology for mineral resources Beijing China

Fluid inclusions from the Dajing and Caijiaying deposits have nearly the same homogenization temperature. Correlation between temperature and salinity shows that both Sn- and Cu-bearing fluids Sn and Cu were present in the Dajing deposit but only one kind of fluids continuously evolved in the Caijiaying deposit. Study on rare earth elements (REE) in ancient fluid from the inclusions indicates that the fluid of Sn mineralizing stage in Dajing was derived from remelting magma of the continental crust, and the fluid of Cu-Pb-Zn mineralizing stage in the Dajing deposit and the fluid of Cu-Pb-Zn mineralization in the Caijiaying deposit were derived from the mantle. It is concluded that the Cu-Pb-Zn mineralizations in the Dajing and Caijiaying deposits resulted from the identical tectono-thermal event of magma-fluids induced by Mesozoic tectonic transition and extension in the eastern part of North china Craton.

关键词： Caijiaying, Dajing, Mesozoic tectonic transition, ore-forming fluid, REE.

Combination of drainage, water supply and environmental protection as well as rational distribution of water resource in Zhengzhou mining district

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Science china Earth Sciences 2005年第10期48卷 1768-1779页

作者： WU Qiang1, LI Duo1,2, DI Zhiqiang3, MIAO Ying3, ZHAO Suqi4 & GUO Qiwen5 1. Resource Exploitation Engineering College, CUMT, Beijing 100083, china 2. Shijiazhuang Engineering College, University of Economics, Shijiazhuang 050031, china 3. shenyang institute of geology and mineral resources, shenyang 110032, china 4. State Adminstration of Coal Mine Safety, Beijing 100013, china 5. Zhengzhou Coal Mine Company (Group), Zhengzhou 452371, china Resource Exploitation Engineering College CUMT University of Economics shenyang institute of geology and mineral resources State Adminstration of Coal Mine Safety Zhengzhou Coal Mine Company (Group)

The geological condition of coalfield is much complex in china. With increasing in mining depth and drainage amount, the contradiction of drainage, water supply and environ-mental protection is becoming more and more serious. However, the contradiction can be solved by the scientific management of optimizing combination of drainage, water supply and environ-mental protection. The Philip multiple objectives simplex method used in this article has searched for a possible solution at the first step, and then it goes on searching to find out whether there is a weight number that can lead the solution to the biggest. It can reduce the randomness and diffi-culty of traditional weight method which determine the weight number artificially. Some beneficial coefficients are vague and the number is larger in the model of water resource dispatch. So the vague layer analysis method can consider these vague factors fully, combining the qualitative and quantitative analysis together. Especially, this method can quantify the experiential judge-ment of policy decider, and it will turn to be more suitable if the structure of objective factors is complex or the necessary data are absent. In the paper, the two methods above are used to solve the plans of drainage, water supply and optimizing distribution of water resource in the Zhengzhou mining district.

关键词： combination of drainage, water supply and environmental protection, Philip multiple objective simplex method, vague layer analysis method, distribution of water resource.

The species diversity of fusulinaceans and high-frequency sea-level changes in the Carboniferous-Permian boundary section at Xikou, Zhen'an County,Shaanxi Province, china

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Science china Earth Sciences 2006年第7期49卷 673-683页

作者： ZHANG Haijun1, WANG Xunlian2, DING Lin1, XIA Guoying3 & WANG Lei2 1. institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, china 2. Faculty of Earth Sciences and mineral resources, china University of Geosciences, Beijing 100083, china 3. Tianjin institute of geology and mineral resources, Tianjin 300170, china institute of Tibetan Plateau Research Chinese Academy of Sciences Beijing China Faculty of Earth Sciences and mineral resources China University of Geosciences Beijing China Tianjin institute of geology and mineral resources Tianjin China

The study on the interrelation between sea-level changes and biodiversity with its evolu-tion has great significance for understanding the impact of global changes on organic evolution and exploring the inherent laws of life-environment coevolution in geological history. In this paper, the stratigraphic distribution of fusulinacean fauna in the Carboniferous-Permian boundary section at Xikou, Zhen’an County, Shaanxi Province, is analyzed quantitatively, and the relationship between the species diversity of fusulinaceans and relative sea-level changes is discussed. As a whole, the spe-cies numbers of fusulinacean fauna experience a rapid increase and an obvious decline in Xikou, Zhen’an County, from the Late Carboniferous to the Early Permian. There is a significant increase in species diversity around the Carboniferous-Permian boundary, which is one of the biggest bio-events of the fusulinacean fauna, and represents the radiation of Pseudoschwagerininae subfamily in the studied area. Integrated fusulinacean species diversity into sequence stratigraphic framework, de-tailed study suggests that the species diversity of the fusulinaceans is closely related to its relative stratigraphic location, and is essentially controlled by the sea-level changes, especially by the high-frequency sea-level changes. Generally, the species diversity of fusulinaceans is low, and the number of first and last appearance datum is small in the lower unit of high-frequency depositional cycle formed during the quick rise of the sea level; whereas the species diversity of fusulinaceans is high, and the number of first and last appearance datum is large in the upper unit of high-frequency cycle formed during the slow fall of the sea level. Within the third-order depositional sequence, the species diversity of the fusulinaceans at the first flooding surfaces and the maximum flooding surfaces is low, and it increases upward. The fusulinacean species diversity is low within the transgressive syst

关键词： fusulinaceans, species diversity, high-frequency cyclothem, sequence stratigraphy, sea-level changes, Carboniferous-Permian boundary, Zhen'an, Shaanxi.

CH_4-rich fluid inclusions in the Yushigou mantle peridotite and their implications, North Qilian Mountains, china

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Chinese Science Bulletin 1999年第21期44卷 1992-1995页

作者： SU Li, SONG Shuguang and WANG ZhihaiXi’an institute of geology and mineral resources, CAGS, Xi’an 710054, china Xi’an institute of geology and mineral Rrsources CAGS Xi’an China

Studies were carried out on the early phase of fluid inclusions which occur in residual olivines in harzburgite from the Yushigou ophiolitic mantle peridotite, the North Qilian Mountains. Components of these inclusions, analyzed by micro laser Raman spectroscopy, are dominantly CH4 (70%-95%) with minor H2, N2, H2S,CO2,C2H4,C2H6, and C3H6, but

关键词： CH4-rich fluid mantle peridotite North Qilian Mountains.

The modes of gold-migration in the gossan-type gold deposit

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Chinese Science Bulletin 1999年第S2期44卷 32-33页

作者： HE Jurui and LI Ying Nanjing institute of geology and mineral resources, Nanjing 210016, china Nanjing institute of geology and mineral resources Nanjing 210016 China

MORE than 30 gossan-type gold deposits have beed discovered in the Middle-Lower Yangtze River *** profile of gold-bearing gossan can be divided into four subzones from upper to lower: （i） gold-deficient or gold-leached gossan (Au contents （0.1-0.8）×10-6) transitonal subzone; （ii） secondary goldconcentration subzone (Au（4-20）×10-6); （iii） oxide and sulfide transitional subzone (Au（0.5-1.5）× 10-6); （iV） Primary sulfide ore (Au（0.5-1） × 10-6). Au Concentration in the subzone （ii） is 2-20 times higher than that in subzone （iV）. Obviously migration and secondary concentration of Au hadhappened in the process of oxidation of primary sulfides. Some geologists indicated that there would be four modes of gold-migration and concentration:（1） gravity separation （mechanism）; （2） organic complex or adsorption; （3） colloidal

关键词： gold migration gossan-type gold deposit.

Genesis and district mineralization model of lead-zinc deposits from the eastern margin of Kangdian axis

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Chinese Science Bulletin 1999年第S2期44卷 74-77页

作者： GUAN Shiping and LI Zhongxiong Chengdu institute of geology and mineral resources, Chengdu 610082, china Chengdu institute of geology and mineral resources Chengdu 610082 China

SITUATED on the eastern margin of Kangdian axis the lead-zinc mineral belt is an important mineral occur- rence of lead-zinc in southwestern china. It is 1 200 km in length from Kangding in Sichuan Province tonortheastern Yunnan Province, and 500 km in width from west to east. There are four large deposits,fourteen middle deposits and many small deposits or mineralized spots. Famous large deposits such as Doliangzi, Tianbaoshan, Chipu and Kuangshanchang are distributed in this belt. 1 Geological setting There are many mineral-bearing strata in carbonate-hosted lead-zinc deposits of this mineral belt,such as Dengying formation （Zbdn）, Longwangmiao formation （2 l） Erdaoshui formation （ 3 e ）,Daqing formation（O2 d ）, Daguan formation （S2d ）, the lower Devonian and Baizuo formation （ C1 b）.

关键词： genesis district mineralization model lead-zinc deposits Kangdian axis.

FOSSIL HAGLIDAE(ORTHOPTERA)IN china

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Science china Chemistry 1982年第10期29卷 1118-1132页

作者：洪友崇 Tianjin institute of geology and mineral resources Ministry of Geology

The present paper discusses Haglidae (Orthoptera) and its stratigraphic and geographicdistributions in china. Basing on our fossil specimens and the known fossil records of insectsthe author tries to discuss the taxonomy of the family Haglidae, including its subfamilies andgenera. Four new genera and seven new species are established.

关键词： Cu FOSSIL HAGLIDAE ORTHOPTERA)IN china length

DISCOVERY OF NEW FOSSIL SPIDERS IN AMBER OF FUSHUN COALFIELD

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Science in china,Ser.B 1982年第4期25卷 431-437页

作者：洪友崇 Tianjin institute of geology and mineral resources Ministry of geology

A new genus, Sinodictyna （Archanda）, has been obtained from amber on the main coalbeds of the Gucheggzi Formation (E2g1), Fush?n Coalfield In Liaoning Province. It suggeststhat Sinodictyna belongs to a regional form in china and that it differs from European Balticamber Eolathys in the chelate teeth, pedipal, walking legs and its appendages. New genusdiscovered first in china fills in tlie gaps in the field of paleontology of china.

关键词： length