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| 1 | Experiment study on water-rock interaction about gold activation and migration in different solutions显示文摘The interactions on gold active and migratory quantities and rates between tuffaceous slate and solu tions with different compositions were experimentally studied at 200 ℃, 20 MPa, in a high pressure apparatus. After reaction, tuffaceous slate became light colored and soft, and its mass density reduced. The amount of gold extracted from tuffaceous slate ranges widely, from 0 027 to 0 234 μg/g. Chlorine solution may activate appreciable amount of gold, and the gold migratory rate is high enough, from 50 70% to 92 30%, which reveals that sulphur and chlorine work together in solutions to accelerate gold activation and migration, and to realize gold mineralization in favorable places. | DAI Ta gen, GU Li, QIU Dong sheng, XIE Wen bing (College of Resources, Environment and Civil Engineering, Central South University, Changsha 410083, China) | 2001 | Journal of Central South University of Technology2001，8，2： | 2 |
| 2 | Petrochemical Characteristics of the Mesozoic-Cenozoic Volcanic Rock in Huanghua Basin显示文摘Based on the data from typical core sampling, combined with K Ar dating, petrochemistry ,trace elemental geochemistry and isotopic compositions of the Mesozoic Cenozoic volcanic rock in the Huanghua basin, Bohai region, the geochemical features of the volcanic rock were studied. The rocks fall into four groups: Cenozoic basalt,Mesozoic late Cretaceous basaltic trachy andesite, Mesozoic late Cretaceous trachy dacite and liparite,and Mesozoic early Triassic dacite. The distribution pattern of the main elemental abundance of late Mesozoic shows a typical bimodal.Chronologically,for the volcanic rock,the amount of SiO 2 decreases gradually,the contents of Fe 2O 3,FeO,CaO,MgO,TiO 2,P 2O 5 and MnO increase little by little.The Cenozoic basalt is derived from the asthenospheric mantle.The late Cretaceous basaltic trachy andesite is derived from the enriched lithospheric mantle.In late Cretaceous and early Palaeogene,the felsic volcanic rock may be derived from fractional melting of the crust. | GU Li 1,DAI Ta gen 1,DENG Cai hua 1,FAN Wei ming 2 (1 College of Resources, Environment and Civil Engineering, Central South University of Technology, Changsha 410083, China 2 Changsha Institute of Geotectonics, Academia Sinica, Changsha 410 | 2000 | Journal of Central South University2000，12，2： | 1 |
| 3 | Muhiscale structural analysis of mouse lingual myoarchitecture employing diffusion spectrum magnetic resonance imaging and multiphoton microscopy 显示文摘 | Gaige TA Kwon HS Dai G | 2008 | J Biomed Opt2008，13，06： | 1 |
| 4 | Diat and exercise in the treatment of obesity: effects of 3 interventions on insulin resistance显示文摘 | Weinstock RS Dai H Wadden TA | 1998 | Arch Intern Med1998，158，： | 1 |
| 5 | β2 glycoprotein Ⅰ in thrombosis,evidence for a rule as a natural anticoagulant显示文摘 | Brighton TA Hogg PJ Dai YP | 1996 | Br J Haematol1996，93，： | 1 |
| 6 | Connexin43 knockdown accelerates wound healing but inhibits mesenchymal transition after corneal endothelial injury in vivo 显示文摘 | NAKANO Y OYAMADA M DAI P NAKAGAMI T KINOSHI- TA S TAKAMATSU T | 2008 | Invest Ophthalmol Vis Sci2008，49，1： | 1 |
| 7 | Compensation of Zn substitution and secondary phase controls effective mass and weighted mobility in In and Ga co-doped ZnO material显示文摘Conductivity s and thermal conductivity k are directly related to carrier concentration while Seebeck coefficient S is inversely proportional to carrier concentration.Therefore,improving thermoelectric(TE)performance is challenging.Here,the first-time analysis of secondary phase-controlled TE performance in terms of density-of-state effective mass m*d,weighted mobility mw and quality factor B is discussed in ZnO system.The results show that the secondary spinel phase Ga2O_(3)(ZnO)9 not only impacts on k but also on s and S at high temperature,while the effect of carrier concentration seem to be dominant at low temperature.For the high-spinel-segregation sample,a compensation of dopant atoms from the spinel to substitutional sites in the ZnO matrix at high temperature leads to a low decreased rate of temperaturedependent m*d.The compensation process also induces a band sharpening,a small mw reduction,and a large B enhancement.As a result,In and Ga co-doped ZnO bulk with the highest spinel segregation achieves the greatest PF improvement by 112.8%,owing to enhanced Seebeck coefficient by 110%as compared to the good Zn-substitution sample. | Oanh Kieu Truong Le Anh Tuan Thanh Pham Ngoc Kim Pham Trang Huyen Cao Pham Truong Huu Nguyen Dung Van Hoang Hanh Kieu Thi Ta Dai Cao Truong Hoa Thi Lai Thuy Dieu Thi Ung Vinh Cao Tran Thang Bach Phan | 2021 | Journal of Materiomics2021，7，4： | 0 |
| 8 | EXPERIMENTAL GEOCHEMISTRY STUDY ON GOLD IN WATER-ROCK REACTION UNDER THERMAL FLUID SYSTEM AT MESO-LOW TEMPERATURE显示文摘Based on the knowing geochemical characteristics of wall rock in the Mobin gold deposit and composition of fluid inclusion in ore,water rock experiments were carried out, important achievements are acquired as following: Gold is mainly derived from the ore bearing wall rock,i.e., a series of epimetamorphic clastic gritstone, sandy slate, and tuffaceous slate in the Wuqiang Banxi Formation, Wuqiangxi Group. In thermal system with middle low temperature chlorine gold may be derived form stable complex ions, so it is quite important in gold metallogenic process. Sulphur and chlorine perform as the major negative ions throughout the gold activation and migration movement. The concentration of sulphur and chlorine ions, pH value and temperature are of deciding significance for gold activation, migration and precipitation. | GU Li 1, DAI Ta gen 2 (1. Bioengineering College, Chongqing University, Chongqing 400044, China 2. College of Resource, Enviroment and Civil Engineering, Central South University, Changsha 410083, China) | 2001 | Geotectonica et Metallogenia2001，25，1： | 0 |
| 9 | PROSPECTING FOR COPPER (GOLD)-POLYMETAL ORES FROM THE LANCANGJIANG TECTONIC ZONE IN WESTERN YUNNAN显示文摘The L ancangjiang tectonic zone in Western Yunnan is an important magmatic,meta- morphic and tectonic mobile zone of Southwestern China,whose geotectonic location is very unique. It is characterized by complex geological structures,perfectly developed strata,fre- quent magmatic activities,various degrees of metamorphism,rich ore resources and lots of metal deposits,thus formed a centralized zone of mineralization and also constituted one of the importantmetallogenicbelts of noble and nonferrousmetal deposits.Thatiswhy the re- searching on geology for this zone is of great | HU Bin, DAI Ta gen, XIE Li hua (Department of Geology, Central South University, Changsha 410083, China) | 2001 | Geotectonica et Metallogenia2001，25，1： | 0 |
| 10 | METALLOGENIC SYSTEM OF DACHANG TIN- POLYMETALLIC ORE FIELD显示文摘The Dachang tin polymetallic ore field in northern Guangxi, China, lies in a mid late Paleozoic rift that borders up the southern boundary of the Jiangnan Xuefeng Massif. As a giant ore deposit, it deposited in middle of the Nandang Hechi metallogenic zone. The ore hosting strata are of the Devonion, which shows the evident characteristics of polymetallic elements, i.e., Sn, Zn, Pb, Sb, As, Cu, Ag, In, Ge, Cd, et al., and over 1 000 000 t tin reserves. | WU Xiang bin 1,2 , DAI Ta gen 1, WANG Zhi bin 1, FANG Sheng kui 2 (1. Institute of Geology, Central South University, Changsha 410083, China 2. Liouzhou Huaxi Co. Ltd., Liouzhou 545006, China) | 2001 | Geotectonica et Metallogenia2001，25，1： | 0 |
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