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1.
Southeastern China,an im portantcom ponentof the east-ern Asian continental margin,is a region where the PacificOcean plate and the Eurasian plate have interacted with eachother since the Mesozoic.Southeastern China,studied bymany Chinese and foreign geologists for a long time (L i,1993;Ren,1990 ;L i,1973;Xie,196 5 ;Huang,195 4a,b) ,contains a num ber of im portant geological features includingancient Cathaysia,a tectono- magmatic belt of Mesozoic-Cenozoic and a polym etal circum - weste…  相似文献   

2.
20041625 Chen Yuanrong (Guilin Institute of Geology for Mineral Resources, Guilin, Guangxi); Shao Shicai Application of Organic Hydrocarbon Gas Combined with Primary Halo Survey to Ore Prospecting and Prognosis in the Ma'anqiao Gold Deposit, Shaanxi Province, China (Geophysical and Geochemi-cal Exploration, ISSN 1000 - 8918, CN11-1906/P, 27(6), 2003, p. 465-468, 1 il-lus. , 2 tables, 1 ref. )  相似文献   

3.
http://www.geoanalysis2006.com1. Title of the ConferenceGeoanalysis2006—The 6th International Conference on the Analysis of Geological and Environmental Materials2. Subject of the ConferenceModern Analytical Technologies for Resource and Environment MaterialsMain Topics for the Symposia:(1) Analytical techniques for environmental and geochemical studies, including automation, speciation, isotopic andorganic analysis.(2) Advances in microprobe techniques and relevant reference material…  相似文献   

4.
GEOCHEMISTRY   总被引：1，自引：0，他引：1  
970071 Chen Dexing(China University ofGeoseienees,Wuhan .Hubei);Shao QixingCurrent Status and DeveloPment of Re-searches on Environmental Geochemistry(ESF,ISSN 1005一2321,CN 11一3370/P,3(l).1996,P.119一126,17ref) Environmenral geochemistry 15 a new sci-enee overlapped by and derived from ge仓ehemistry and environmental seienee.In thispaper tho nature of this diseiplrne 15 summarilyexpounded.The main Problems in the envi-ronmental geochemistry are proposed;suehas:environmental geoche…  相似文献   

5.
NO。1RelationshiP between Mesozoie Magmatism and Subduetion in the Da珑nggan一、恤nshan Area Shao Ji’an(邵济安),Liu Futian(刘福田),Chen Hui(陈辉)and Han Qin自un(韩庆军)Dating of the Karakorum Strike一sliP Fault-·-,一··-·Zhou Yong(周勇),Xu Ronghua(许荣华), Yan Yuehoa(阎月华),pan Yusheng(潘裕生),Tsanyao Rank、、ng(杨灿尧),wei Lo(罗伟)and Wu Chunrmng(吴春明)Roek se五es and oenetie竹pes ofor耐toids in the westem Kunzun On〕geie Belt,e址na-;、,Jiang物ohoi(姜耀辉), 劝ou xunruo(周…  相似文献   

6.
Based on the results of researches and applications for many years, it has been discovered that new methods and techniques for geochemical exploration of oil and gas such as AC, altered carbonate, Hg in absorption phase, Ks, Fe2+ ,δ13C, fluorescence in two and three dimensions, and N2 and O2 in heat release can give full play in the following five fields: (1) optimization of the favourable target or hollow zones and structural zones in a region; (2) evaluation of oil traps and delineation of prospective oil and gas areas; (3) prediction of deep-seated oil-bearing horizons; (4) evaluation of the genesis of oil and gas geochemical anomalies and determination of the types of oil and gas accumulations; (5) forecast of the burial depths of oil and gas pools.  相似文献   

7.
The study of fluid inclusions can help constrain the conditions at which diagenetic minerals precipitated, leading to a better understanding of the geologic controls and relative timing of changes in porosity and/or mineralising events. Many of the diagenetic minerals are easily deformed and it is important to check for any post-entrapment changes to the inclusions. Possible post-entrapment changes include reaction with the host crystal, necking down, nucleation metastability and thermal re-equilibration. The recommended method of detecting these problems is to examine individual fluid inclusion assemblages (FIAs) and report data for each individual FIA. These studies have been enhanced by the development of new micro-analytical techniques such as micro-fluorescence spectroscopy, micro-infrared spectroscopy, nuclear magnetic resonance, various mass spectrometry techniques and the analysis of individual fluid inclusions using laser ablation/decrepitation methods. Special techniques have been developed for hydrocarbon-bearing inclusions such as the Grains containing Oil Inclusions (GOI), Fluid Inclusion Stratigraphy (FIS), and the Molecular Composition of Inclusions (MCI) techniques. The fluid inclusions that form in some minerals during diagenesis provide the only direct means of examining the fluids present in these systems. They provide useful temperature, pressure, and fluid composition data that cannot be obtained by other means.  相似文献   

8.
PALEOZOOLOGY     
20000458 Chen Jinl川a(Nanjing Instit、;te ofGeology and Palaeontology,Ch一nese Aeade-my of Seienee、,Nanjing,Jiangsu)Diseussionof the“Aucellina”from the LongzhaogouGrouP and on the Signifieanee of Pseu-doetenol ium in Classification(Aeta Palaeon-tologiea Siniea,ISSN 0001一6616,CN 32一1 188/Q,38(4),1999,P.454一468,6 11-lus.,1 rable,3 Plates,35 ref) Sha(1 990,1991,1992a,b)and others(Sha and Fursieh,1 994,Gu et al,1997)ProPosed a revision for the bivalve fossils fromthe Longzhaogo…  相似文献   

9.
20033035 Chen Xiankuan (Chuanzhong Institute of Oil/Gas Exploration and Development , Suining, Sichuan ) Computer-Processing Program for the Nomenclature of Complex Minerals in Sichuan Basin Sedimentary Rocks and Ores (Geology-Geochemistry, ISSN1008-0244, CN52-2044/P, 30 (4), 2002, p. 91-93, 1 table, with English abstract)  相似文献   

10.
Complicated oil and gas fields occupy an important position in oil and gas exploration. In this paper, complicated oil and gas fields are grouped into four types: fault-block, lithologic, stratigraphic and fissure types. On the basis of the new theory of petroleum geological exploration in composite oil and gas accumulation areas within continental basins, a new exploration sequence suitable for complicated oil and gas fields has been established, which comprises four stages:(1) initial exploration;(2) preliminary exploration;(3) early step-by-step exploration and development: and(4) late step-by-step exploration and development. The idea of cybernetics has been taken to control various links of a systematic exploration project so as to fully, effectively and comprehensively utilize the new exploration techniques, eventually realizing the optimization of exploration with the aim of raising the efficiency of exploration of complicated oil and gas fields.  相似文献   

11.
From 2010 to 2012, the China Geological Survey Center for Hydrogeology and Environmental Geology Survey (CHEGS) carried out the project “Potential evaluation and demonstration project of CO2 Geological Storage in China”. During this project, we developed an evaluation index system and technical methods for the potential and suitability of CO2 geological storage based on China’s geological conditions, and evaluated the potential and suitability of the primary basins for CO2 geological storage, in order to draw a series of regional scale maps (at a scale of 1:5000000) and develop an atlas of the main sedimentary basins in China. By using these tools, we delineated many potential targets for CO2 storage. We also built techniques and methods for site selection and the exploration and assessment of CO2 geological storage in deep saline aquifers. Furthermore, through cooperation with the China Shenhua Coal to Liquid and Chemical Co., Ltd., we successfully constructed the first coal-based demonstration project for CO2 geological storage in deep saline aquifers in the Yijinhuoluo Banner of Ordos in the Inner Mongolia Autonomous Region, which brought about the basic preliminary theories, techniques, and methods of geological CO2 storage in deep saline aquifers under China’s geological conditions.  相似文献   

12.
From 2010 to 2012, the China Geological Survey Center for Hydrogeology and Environmental Geology Survey (CHEGS) carried out the project “Potential evaluation and demonstration project of CO2 Geological Storage in China”. During this project, we developed an evaluation index system and technical methods for the potential and suitability of CO2 geological storage based on China’s geological conditions, and evaluated the potential and suitability of the primary basins for CO2 geological storage, in order to draw a series of regional scale maps (at a scale of 1:5000000) and develop an atlas of the main sedimentary basins in China. By using these tools, we delineated many potential targets for CO2 storage. We also built techniques and methods for site selection and the exploration and assessment of CO2 geological storage in deep saline aquifers. Furthermore, through cooperation with the China Shenhua Coal to Liquid and Chemical Co., Ltd., we successfully constructed the first coal-based demonstration project for CO2 geological storage in deep saline aquifers in the Yijinhuoluo Banner of Ordos in the Inner Mongolia Autonomous Region, which brought about the basic preliminary theories, techniques, and methods of geological CO2 storage in deep saline aquifers under China’s geological conditions.  相似文献   

13.
20091053 Chen Jiangfeng(The State Key Laboratory of Coal Resources and Safety Mining of China,China University of Mining and Technology,Beijing 100083,China);Shao Longyi Experimental Study of Synthesizing Mullite from High-Alumina Fly Coal Ash (Acta Mineralogica Sinica,ISSN 1000-  相似文献   

14.
黄土的热释光年代——光晒退的实验测定和结果修正   总被引：2，自引：0，他引：2  
李虎侯 《地球化学》1984,(2):180-185
In the present paper the shine-fading posibility of TL storage in quartz crystals is discussed with an artificial light source and also explained with the energy banal theory.In terms of the concept of “trap”, the author has substantiated the nature of TL storage in quartz crystals. A method for revising the residual TL stored in quartz crystals is proposed, and has been justified by the determined ages of six loess samples from different localities.  相似文献   

15.
TL ages of 56 loess samples collected from Xinjiang and the middle reaches of the Yellow River were determined by using fine-grained quartz and man-made light source bleaching techniques.The results indicate that :1.The well-preserved loess sections in Xinjiang began depositing 400000 a ago.The loess/paleosol series may be comparable with that observed in the middle reaches of the Yellow River but the depositing time was probably delayed by 30000-50000a.2.The bottom boundary age of the Malan loess varies from one place to another.The TL dates can be divided into two group:70000-130000 a and 30000-50000 a.The TL data are con-sistent with the appearance of two warmer climate periods since the Pleistocene,indicating obvious regional differences in stratigraphic development of loess,i.e.,paleosol occurred in the warm climate period in the same location,but loess was deposited in other locations.The initial age of loess deposition tends to become older from west to east and from south to north .In contrast ,the cold cli-matic belt showed an opposite trend.The TL ages of loess provide strong evidence for the Quaternary stratigraphy throughout geological times and the shift tendency of climatic belt.3.The depositing rate of the Malan loess along the middle reaches of the Yellow River varies from place to place but the TL age shows a linear relationship with the depositing thickness.The de-positing rate of loess in the north is higher than that in the south,suggesting that loess materials are derived from desert areas of northern China.  相似文献   

16.
<正>20102573 Chen Yiping(School of Info-Physics and Geomatics Engineering,Central South University,Changsha 410083,China);Li Yan Application of Geological Radar in Detection of Burial Bodies(Computing Techniques for Geophysical and Geochemical Exploration,ISSN1001-1749,CN51-1242/P,31(4),2009,p.319-322,5 illus.,12 refs.)Key words:geological radarIn order to provide the base for engineering determination and environment protection,geological theory and data processing method are applied to know about geological pollution result from  相似文献   

17.
1. IntroductionThe discovery of delicately persevered multicellular algae and possible animal embryos from the terminal Proterozoic Doushantuo Formation has greatly changed our views on the origin and early evolution of metaphyte and metazoan (Chen et al., 1991, 1992; Zhang et al., 1992, 1998; Li et al., 1997; Xiao et al., 1998), and encourages us to look for the evidences of advanced lives in older rocks. Some jellyfish fossils were reported in the Piyuancun Formation (equated with Dengyi…  相似文献   

18.
Western Altun in Xinjiang is an important area, where lithium(Li)-bearing pegmatites have been found in recent years. However, the complex terrain and harsh environment of western Altun exacerbates in prospecting for Li-bearing pegmatites. Therefore, remote-sensing techniques can be an effective means for prospecting Li-bearing pegmatites. In this study, the fault information and lithologyical information in the region were obtained using the median-resolution remotesensing image Landsat-8, the ...  相似文献   

19.
INTRODUCTIONThe Janggun mine,Republic of Korea,is located in thesoutheast of the Seoul,about latitude36°5 1′N and longitude12 9°0 4′E. In this mine area is situated the Bonghwa m ineral-ized zone of the Taebaegsan mining district,Korea.The geo-logic setting of the region was described as the Samgeum riQuadrangle(Kim et al.,196 2 ) .The general and local geolo-gy near the mine area have been studied by L ee (196 7) ,Hwang and Reedman(1975 ) .This mine consists of four min-eral de…  相似文献   

20.
<正>As the representative techniques of stimulating production performance,horizontal well and stimulated reservoir volume(SRV)fracturing are applied successfully in unconventional oil/gas reservoirs,such as Bakken and Eagle Ford,and will become the core stimulating techniques to exploit unconventional reservoirs in the future.In the process of horizontal well SRV fracturing,  相似文献   

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