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| 1 | Seafloor hydrothermal activity and polymetallic sulfide exploration on the southwest Indian ridge显示文摘Polymetallic sulfides have attracted more attentions,which are regarded as one of the potential seabed mineral resources for their high grade of precious metal elements such as Cu,Zn,Pb,Au,and Ag.Since2007,there are four China dayang cruises(CDCs)with eight legs totally,which have been carried out to investigate polymetallic sulfides on the southwest Indian ridge(SWIR),and eight hydrothermal vents have been found.In2011,the China Ocean Mineral Resources Research and Development Association(COMRA)and International Seabed Authority(ISA)signed a 15-year contract for exploration for polymetallic sulfides located on the SWIR between 46°S and 53°S.The area allocated to the COMRA is approximately 10,000 km2.In this paper,we review the recent research advances about hydrothermal activity of the SWIR by the CDCs.As for the sulfides exploration in the future,some aspects should be emphasized,such as the controlling factors of sulfide mineralization on the SWIR,prospecting methods of inactive and buried sulfide deposits,sulfides resources assessment method,and the nearbottom sulfides exploration technology systems. | Chunhui Tao Huaiming Li Xiaobing Jin Jianping Zhou Tao Wu Yonghua He Xianming Deng Chunhua Gu Guoyin Zhang Weiyong Liu | 2014 | Chinese Science Bulletin2014，59，19： | 25 |
| 2 | The Genesis Mechanism of the Mantle Fluid Action and Evolution in the Ore-Forming Process: A Case Study of the Laowangzhai Gold Deposit in Yunnan, China显示文摘Based on petrological studies of the wall rocks, mineralizing rocks, ores and veins from the Laowangzhai gold deposit, it is discovered that along with the development of silication, carbonation and sulfidation, a kind of black opaque ultra-microlite material runs through the spaces between grains, fissures and cleavages. Under observations of the electron microprobe, scanning electronic microscopy and energy spectrum, this kind of ultra-microlite material is confirmed to consist of ultra microcrystalline quartz, silicate, sulfides and carbonates, as well as rutile, scheelite and specularite (magnetite), showing characters of liquation by the analyses of SEM and energy spectrum. The coexistence of immiscibility and precipitating co-crystallization strongly suggests that the mineralizing fluid changed from the melt to the hydrothermal fluid. Combined with the element geochemical researches, it is realized that the ultra-microlite aggregate is the direct relics of the mantle fluid behaving like a melt and supercritical fluid, which goes along with the mantle-derived magma and will escape from the magma body at a proper time. During the alteration process, the nature of the mantle fluid changed and it is mixed with the crustal fluid, which are favorable for mineralization in the Loawangzhai gold deposit. | LIU Xianfan LI Chunhui LU Qiuxia DENG Biping SONG Xiangfeng ZHAO Fufeng CHU Yating XIAO Jixiong YI Liwen HUANG Yupeng | 2012 | Acta Geologica Sinica(English Edition)2012，86，3： | 13 |
| 3 | New discovery of seafloor hydrothermal activity on the Indian Ocean Carlsberg Ridge and Southern North Atlantic Ridge-progress during the 26th Chinese COMRA cruise显示文摘The 26th Chinese COMRA (China Ocean Mineral Resources Research & Development Association) cruise was an important cruise. The Carlsberg Ridge (CR) of the Northwest Indian Ocean and the North Atlantic Ridge (NAR), in which less investigation has been carried out for hydrothermal activities, were investigated and studied during the first two legs of the 26th COMRA cruise. During the first leg, we found one hydrothermal activity field located in the CR at 3.5 -3.8 N on the Northwest Indian Ocean Ridge (NWIR), and sampled seafloor polymetallic sulfide deposits where only abnormalities were found before. During the second leg, we found a new hydrothermal anomaly field located in the NAR at 4 -7 N. The discovery of two hydrothermal and anomaly fields filled in the gap of hydrothermal investigation and study in the corresponding regions for China. | TAO Chunhui WU Guanghai DENG Xianming QIU Zhongyan HAN Chenhua LONG Yanmei | 2013 | Acta Oceanologica Sinica2013，32，8： | 5 |
| 4 | The petrographical and isotope geochemical tracers for deep ore-forming fluids from the Laowangzhai gold depoist in the northern part of the Ailao Mountains显示文摘Based on the petrological studies of wall rocks, mineralized rocks, ores and veins from the Laowangzhai gold deposit, it is discovered that with the development of silification, carbonation and sulfidation, a kind of black opaque ultracrystalline material runs through the space between grains and amphibole cleavages, which is the product of fast condensing consolidation with magma mantle fluids turning into hydrothermal crustal fluids in the process of mineralization and alteration. It is thought that the water in ore-forming fluids mainly derived from magmatic water through research on H-O isotopes, and C as well as S isotopic compositions, has clear mantle-derived characteristics, and rock (mine) stones contain high 87Sr/86 Sr ratios, low 143Nd/144 Nd ratios and high 206Pb/204 Pb ratios, which also reflects the ore-forming fluids were derived from the metasomatically enriched mantle. In combination with the features of H-O-C-S isotopes and Sr-Nd-Pb isotopes described above, the ore-forming fluids of the Laowangzhai gold deposit in the northern part of the Ailao Mountains were derived mainly from the deep interior of the mantle, and their properties were transformed from magma fluids to hydrothermal fluids in the course of metasomatism and alteration, which initiated crust-mantle contamination simultaneously to be in favor of mineralization. | DENG Biping LIU Xianfan ZHANG Min LU Qiuxia ZHAO Fufen LI Chunhui CHU Yating XU Yaoyao TIAN Xiaomin LI Hui | 2013 | Chinese Journal Of Geochemistry2013，32，3： | 4 |
| 5 | Sulfonic acid-based metal organic framework functionalized magnetic nanocomposite combined with gas chromatography-electron capture detector for extraction and determination of organochlorine显示文摘The metal organic framework functionalized with sulfonic acid was combined with magnetic nanoparticles to fabricate a new nanocomposite(denoted as Fe3O4@PDA@Zr-SO3H).By combining with gas chromatography-electron capture detector,the resulting Fe3O4@PDA@Zr-SO3H nanocomposite was successfully used as a high-efficiency adsorbent for pre-concentrating eight organochlorine pesticides from water sample in environment.Apart from the ability of fast separation,the as-prepared Fe3O4@PDA@Zr-SO3H nanocomposite also exhibited high adsorption capacity for organochlorine pesticides.With the use of optimal experimental conditions,the linear relationship can be obtained in the range of 0.05~300μg/L,the correlation coefficient was over 0.9978,and the relative standard deviation was located in 2.5%-7.7%.Moreover,the limit of detection and quantification was between0.005-0.016μg/L and 0.017~0.050μg/L.Finally,the nanocomposite was used for the determination of organochlorine pesticides from environmental water samples,and displayed the recovery of 82%-118%. | Ying Wang Qing Ye Menghuan Yu Xijun Zhang Chunhui Deng | 2020 | Chinese Chemical Letters2020，31，7： | 3 |
| 6 | TEM investigations of South Atlantic Ridge 13.2°S hydrothermal area显示文摘According to the exploration contract about polymetallic sulfides in the SWIR(Southwest Indian Ridge)signed by China with the International Seabed Authority,to delineate sulfide minerals and estimate resource quantity are urgent tasks.We independently developed our first coincident loop Transient Electromagnetic Method(TEM)device in 2010,and gained the TEM data for seafloor sulfide at South Atlantic Ridge 13.2°S in June 2011.In contrast with the widely applied CSEM(Marine controlled-source electromagnetic)method,whose goal is to explore hydrocarbons(oil/gas)of higher resistivity than seawater from 102to 103m below the sea floor,the TEM is for low resistivity minerals,and the target depth is from 0 to 100 m below the sea floor.Based on the development of complex sulfide geoelectrial models,this paper analyzed the TEM data obtained,proposing a new method for seafloor sulfide detection.We present the preliminary trial results,in the form of apparent resistivity sections for both half-space and full-space conditions.The results correspond well with the observations of the actual hydrothermal vent area,and the detection depth reached50–100m below the bed,which verified the capability of the equipment. | TAO Chunhui XIONG Wei XI Zhenzhu DENG Xianming XU Yixian | 2013 | Acta Oceanologica Sinica2013，32，12： | 3 |
| 7 | A hydrothermal investigation system for the Qianlong-Ⅱ autonomous underwater vehicle显示文摘Qianlong-Ⅱ is a fully autonomous underwater vehicle designed for the investigation of submarine resources,particularly polymetallic sulfides. It was used to successfully explore hydrothermal fields on the Southwest Indian Ridge. Here, we summarized the exploration of hydrothermal systems using Qianlong-Ⅱ, including detailed descriptions of its implementation along with the systems used for data management and fast mapping. We also introduced a method to remove platform magnetic interference using magnetic data while Qianlong-Ⅱ is spinning. Based on hydrothermal anomalies collected by Qianlong-Ⅱ, we developed a rapid method for locating hydrothermal vents. Taking one dive as an example, we systemically demonstrated the process for analyzing hydrothermal survey data to locate hydrothermal vents. | Tao Wu Chunhui Tao Jinhui Zhang Ao Wang Guoyin Zhang Jianping Zhou Xianming Deng | 2019 | Acta Oceanologica Sinica2019，38，3： | 2 |
| 8 | Synthesis and electrochemical properties of MnO 2 nanorods/graphene composites for supercapacitor applications显示文摘 | SiXu Deng Dan Sun ChunHui Wu Hao Wang JingBing Liu YuXiu Sun Hui Yan | 2013 | Electrochimica Acta2013，，： | 1 |
| 9 | Superparamagnetic High-Magnetization Microspheres with an Fe3O4@SiO2 Core and Perpendicularly Aligned Mesoporous SiO2 Shell for Removal of Microcystins显示文摘 | Deng Yonghui Qi Dawei Deng Chunhui | | 0，，1： | 1 |
| 10 | Head space solid phase microextraction and gas chromatograph-mass spectrometry analysis of free volatile compounds in Mango 显示文摘 | Shang Chunqing Deng Chunhui Chen Zhengfu | 2002 | Chromatographia2002，55，： | 1 |
| 11 | Rapid determination of volatile constituents of Michelia alba flowers by gas chromatograhy-mass spectrometry with solid-phase microextraction显示文摘 | Chunqing Shang Yaoming Hu Chunhui deng | 2002 | Journal of Chromatography A2002，942，： | 1 |
| 12 | Development of C~8- funetionalized magnetic silica nanoparticles as sample preparation technique for the determination of ergosterol in cigarettes by microwave- assisted derivatization and gas chromatography/mass spectrometry显示文摘 | SHA Yunfei DENG Chunhui LIU Baizhan | 2008 | Journal of Chromatography A2008，1198，： | 1 |
| 13 | Rapid deter- mination of volatile constituents of Michelia alba flowers by gas chromatography-mass spectrometry with solid-phase micro-extraction 显示文摘 | SHANG Chunqing HU Yaorning DENG Chunhui | 2002 | Journal of Chromatography2002，942，1： | 1 |
| 14 | Wierowave-assisted steam distiUation for the determination of organoehlorlne pesticides and pyrethroids in chinese teas 显示文摘 | JI Jie DENG Chunhui ZHANG Huiqin | 2007 | Talanta2007，71，： | 1 |
| 15 | Low-bandgap conjugated polymers based on benzodipyrrolidone with reliable unipolar electron mobility exceeding 1 cm^(2) V^(-1)s^(-1)显示文摘The employment of an intrinsic quinoidal building block,benzodipyrrolidone(BDP),on constructing conjugated polymers(PBDP-2F and PBDP-2CN)with high electron mobility and unipolar transport characteristic in polyethylenimine ethoxylated(PEIE)modified organic field-effect transistors(OFETs)is reported.The intrinsic quinoidal characteristic and excellent coplanarity of BDP can lower the lowest unoccupied molecular orbital(LUMO)levels and improve ordered interchain packing of the resulting polymers in solid states,which are favorable for electron-injection and transport.By using PEIE as the interlayer to block the hole injection,unipolar n-type transport characteristics with high electron mobility of 0.58 and 1.01 cm^(2) V^(-1)s^(-1)were achieved by the OFETs based on PBDP-2F and PBDP-2CN,respectively.More importantly,the extracted mobilities are highly reliable with the reliability factor of above 80%.To the best of our knowledge,PBDP-2CN is the very first quinoid-based conjugated polymer with reliable electron mobility exceeding 1 cm^(2) V^(-1)s^(-1).This work represents a significant step in exploring intrinsic quinoidal CPs for application in n-channel OFETs and logic complementary circuits. | Mingqun Yang Tian Du Xuxia Zhao Xuelong Huang Langheng Pan Shuting Pang Haoran Tang Zhongxiang Peng Long Ye Yunfeng Deng Mingliang Sun Chunhui Duan Fei Huang Yong Cao | 2021 | Science China Chemistry2021，64，7： | 1 |
| 16 | Wierowave assisted steam distil lation for the determination of organoehlorine pesticides and pyrethroids in Chinese teas 显示文摘 | JI Jie DENG Chunhui ZHANG Huiqin | 2007 | Talanta2007，71，： | 1 |
| 17 | Determination of essential oil in a traditional Chinese medicine,Fructus amomi by pressurized hot waterextraction followed by liquid-phase microextraction and gas chromatography-mass spectrometry显示文摘 | Chunhui Deng Ning Yao Aipin Wang | 2005 | Analytica Chimica Acta2005，536，： | 1 |
| 18 | Rapid determination of panaxynol in a traditional Chinese medicine Saposhnikovia divaricata by pressurized hot water extraction followed by liquid-phase microextraction and gas chromatography-mass spectrometry显示文摘 | Chunhui Deng Xiuhan Yang Xiangmin Zhang | 2005 | Talanta2005，68，： | 1 |
| 19 | Recent developments in sample preparation techniques for chromatography analysis of traditional Chinese medicines显示文摘 | Chunhui Deng Ning Liu Mingxia Gao Xiangmin Zhang | 2007 | Journal of Chromatography A2007，，1： | 1 |
| 20 | Rapid determination of volatile constituents of Michelia alba flowers by gas chromatography - masss pectrometry with solid- phase microextraction 显示文摘 | Chunqing Shang Yaoming Hu Chunhui deng KejiHu | 2002 | J Chromatogr A2002，942，： | 1 |
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