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| 1 | Discovery of ~4.0 Ga detrital zircons in the Changdu Block,North Qiangtang,Tibetan Plateau显示文摘在 situ 锆石由 LA-ICP-MS 和 MC-ICP-MS 标明日期使用, 3981 的由岩屑形成的锆石 ??? 鮼铧?? ? 裦蒚铩 ????? 偃 ?? 鮼 ?? 郥趽 ????腘 吗?? | ShiPing He RongShe Li Chao Wang HongFei Zhang WenHua Ji PuSheng Yu PingYang Gu Chao Shi | 2011 | Chinese Science Bulletin2011，56，7： | 9 |
| 2 | Geological Fluid Mapping in the Tongling Area:Implications for the Paleozoic Submarine Hydrothermal System in the Middle-Lower Yangtze Metallogenic Belt,East China显示文摘The Tongling area is one of the 7 ore-cluster areas in the Middle-Lower Yangtze metallogenic belt,East China,and has tectonically undergone a long-term geologic history from the late Paleozoic continental rifting,through the Middle Triassic continent-continent collision to the Jurassic-Cretaceous intracontinental tectono-magmatic activation.The Carboniferous sedimentary-exhalative processes in the area produced widespread massive sulfides with ages of 303-321 Ma,which partly formed massive pyrite-Cu deposits,but mostly provided significant sulfur and metals to the skarn Cu mineralization associated with the Yanshanian felsic intrusions. To understand the Carboniferous submarine hydrothermal system,an area of about 1046 km^2 was chosen to carry out the geological fluid mapping.Associated with massive sulfide formation,footwall sequences 948 m to 1146m thick,composed of the Lower Silurian-Upper Devonian sandstone,siltstone and thin-layered shale,were widely altered.This hydrothermal alteration is interpreted to reflect large- scale hydrothermal fluid flow associated with the late Paleozoic crustal rifting and subsidence.Three hydrothermal alteration types,i.e.,deep-level semiconformable silicification(S_1),fracture-controlled quartz-sericite-pyrite alteration(S_(2-3)),and upper-level sub-discordant quartz-sericite-chlorite alteration(D_3),were developed to form distinct zones in the mapped area.About 50-m thick semiconformable silicification zones are located at~1-km depth below massive sulfides and developed between an impermeable shale caprock(S_1)and the underlying Ordovician unaltered limestone. Comparisons with modern geothermal systems suggest that the alteration zones record a sub-seafloor aquifer with the most productive hydrothermal fluid flow.Fracture-controlled quartz-sericite-pyrite alteration formed transgressive zones,which downward crosscut the semiconformable alteration zones, and upwards grade into sub-discordant alteration zones that enveloped no economic stringer- stockwork zones beneath massive sulfides.This transgressive zone likely marks an upflow path of high- flux fluids from the hydrothermal aquifer.Lateral zonation of the sub-discordant alteration zones and their relationship to overlying massive sulfide lenses suggest lateral flows and diffusive discharging of the hydrothermal fluids in a permeable sandstone sequence.Three large-sized,14 middle-small massive sulfide deposits,and 40 massive sulfide sites have been mapped in detail.They show regional strata- bound characters and two major styles,i.e.,the layered sheet plus strata-bound stringer-style and the mound-style.Associated exhalite and chemical sedimentary rock suites include(1)anhydrite-barite,(2) jasper-chert,(3)Mg-rich mudstone-pyrite shale,(4)barite lens,(5)siderite-Fe-bearing dolomite,and (6)Mn-rich shale-mudstone,which usually comprise three sulfide-exhalite cyclic units in the area. The spatial distribution of these alteration zones(minerals)and associated massive sulfides and exhalites,and regional variation inδ^(34)S of hydrothermal pyrite and inδ^(18)O-δ^(34)C of hanging wall carbonates,suggest three WNW-extending domains of fluid flow,controlled by the basement faults and syn-depositional faults.Each fluid domain appears to have at least two upflow zones,with estimated even spacing of about 5-8 km in the mapped area.The repeated appearance of sulfide-sulfate or sulfide-carbonate rhythmic units in the area suggests episodically venting of fluids through the upflow conduits by breaking the overlying seals of the hydrothermal aquifer. | HOU Zengqian YANG Zhusen MENG Yifeng ZENG Pusheng LI Hongyang XU Wenyi | 2007 | Acta Geologica Sinica(English Edition)2007，81，5： | 8 |
| 3 | Insights into measurements of water-soluble ions in PM_(2.5)and their gaseous precursors in Beijing显示文摘To better understand the characteristics and transformation mechanisms of secondary inorganic aerosols,hourly mass concentrations of water-soluble inorganic ions(WSIIs)in PM_(2.5)and their gaseous precursors were measured online from 2016 to 2018 at an urban site in Beijing.Seasonal and diurnal variations in water-soluble ions and gaseous precursors were discussed and their gas-particle conversion and partitioning were also examined,some related parameters were characterized.The(TNH_(3))Rich was also defined to describe the variations of the excess NH_(3)in different seasons.In addition,a sensitivity test was carried out by using ISORROPIA II to outline the driving factors of gas-particle partitioning.In Beijing,the relative contribution of nitrate to PM_(2.5)has increased markedly in recent years,especially under polluted conditions.In the four seasons,only a small portion of NO_(2)in the atmosphere was converted into total nitrate(TNO_(3)),and more than 80%of TNO_(3)occurred in the form of nitrate due to the abundant ammonia.The concentration of total ammonia(TNH_(3))was much higher than that required to neutralize acid gases,and most of the TNH_(3)occurred as gaseous NH_(3).The nitrous acid(HONO)concentration was highly correlated with NH_(3)concentration and had increased significantly in Beijing compared with previous studies.The total chloride(TCl)was the highest in winter,andε(Cl^(-))was more sensitive to variations in the ambient temperature(T)and relative humidity(RH)thanε(NO_(3)^(-)). | Jie Su Pusheng Zhao Jing Ding Xiang Du Youjun Dou | 2021 | Journal of Environmental Sciences2021，33，4： | 7 |
| 4 | Size-resolved carbonaceous components and water-soluble ions measurements of ambient aerosol in Beijing显示文摘A MOUDI-120 sampler was used in Beijing to collect multi-stage samples in the summer and winter of 2013 to 2015. Thirty-three sample sets were collected during the daytime,nighttime, and different pollution levels. The actual relative humidity in the impactors was calculated for the first time. The carbonaceous components(organic and elemental carbon,OC and EC, respectively) and water-soluble inorganic ions(Na^+, NH_4^+, K^+, Mg^(2+), Ca^(2+), Cl^-, NO_3^-,and SO_4^(2-)) were analyzed in each sample. The characteristics of the mass concentration distribution and charge balance were discussed. On the basis of relative humidity in the impactors, aerosols less than 1.0 μm were sampled under relatively dry conditions in most cases. The concentration levels for the chemical species were higher in the winter than in the summer. Three modes(condensation mode, droplet mode, and coarse mode) could be identified from the distributions of NH_4^+, NO_3^-, SO_4^(2-), Cl^-, K^+, OC and EC. The distribution characteristics for the pollution dissipation process were different from the pollution accumulation process. NO_3^-and NO_2^-contributed most of the negative electric charges in the stage below 0.1 μm. In the condensation mode, the cations were dominated by NH_4^+, which was sufficient to balance the anions. In the droplet mode of the heavily polluted samples,the ammonium was not sufficient to balance the anions. In the coarse mode, the positive electric charges were primarily composed of metal cations. The analyzed anions were not sufficient to neutralize the measured cations. | Pusheng Zhao Yina Chen Jie Su | 2017 | Journal of Environmental Sciences2017，29，4： | 6 |
| 5 | Comparisons of measured nitrous acid(HONO) concentrations in a pollution period at urban and suburban Beijing, in autumn of 2014显示文摘To study the HONO formation mechanisms during a pollution period, a continuous measurement was performed in both urban and suburban aeras of Beijing. During this period, the PM2.5 concentrations increased to 201 and 137 ?g/m3 in urban and suburban areas, respectively. The concentrations of HONO, CO, SO2, O3, NO, NO2, NOx were 1.45 ppbv, 0.61 ppmv, 8.7 ppbv, 4.3 ppbv, 44.4 ppbv, 37.4 ppbv, 79.4 ppbv and 0.72 ppbv, 1.00 ppmv, 1.2 ppbv, 7.9 ppbv, 3.7 ppbv, 8.2 ppbv, 11.9 ppbv, in urban and suburban areas, respectively. To compare possible pathways of HONO formation in both sites, the contributions of direct emissions, heterogeneous formations, and homogeneous productions were studied. HONO/NO2 ratios in the two sites indicated that heterogeneous reactions of NO2 were more efficient in suburban areas. And in both urban and suburban areas, the increase of PM2.5 concentrations and RH would promote the conversion efficiency in RH that ranged from 0% to 85%. However, when RH was above 85%, the HONO formation slowed down. Moreover, the study of direct emissions and homogeneous reactions showed that they contributed to a majority of HONO increase in urban areas than the 20% contributions in suburban areas. It implied that the high NOx concentrations and NO concentrations in urban areas or in pollution periods would make direct emissions and homogeneous reactions become dominant in HONO formations. | Shengrui Tong Siqi Hou Ying Zhang Biwu Chu Yongchun Liu Hong He Pusheng Zhao Maofa Ge | 2015 | Science China Chemistry2015，58，9： | 3 |
| 6 | Long-term visibility trends and characteristics in the region of Beijing, Tianjin, and Hebei, China显示文摘 | Pusheng Zhao Xiaoling Zhang Xiaofeng Xu Xiujuan Zhao | 2011 | Atmospheric Research2011，，3： | 2 |
| 7 | Evolutionary biogeography on Ophiocordyceps sinensis:An indicator of molecular phylogeny to geochronological and ecological exchanges显示文摘The fungus Ophiocordyceps sinensis is endemic to the vast region of the Qinghai-Tibetan plateau(QTP).The unique and complex geographical environmental conditions have led to the 'sky island' distribution structure of O.sinensis.Due to limited and unbalanced sample collections,the previous data on O.sinensis regarding its genetic diversity and spatial structure have been deemed insufficient.In this study,we analyzed the diversity and phylogeographic structures of O.sinensis using internally transcribed spacer region(ITS) and 5-locus datasets by a large-scale sampling.A total of 111 haplotypes of ITS sequences were identified from 948 samples data of the fungus O.sinensis,with representing high genetic diversity,and 8 phylogenetic clades were recognized in O.sinensis.Both the southeastern Tibet and the northwestern Yunnan were the centers of genetic diversity and genetic differentiation of the fungus,and they were inferred as the glacial refugia in the Quaternary.Three distribution patterns were identified to correspond to the 8 clades,including but not limited to the coexistence of widely and specific local distributive structures.It also revealed that the differentiation pattern of O.sinensis did not fit for the isolation-by-distance model.The differentiation into the 8 clades occurred between 1.56 Myr and6.62 Myr.The ancestor of O.sinensis most likely originated in the late Miocene(6.62 Myr) in the northwestern Yunnan,and the Scene A-C of the Qinghai-Tibetan movements may have played an important role in the differentiation of O.sinensis during the late Miocene-Pliocene periods.Our current results provide a much clearer and detailed understanding of the genetic diversity and geographical spatial distribution of the endemic alpine fungus O.sinensis.It also revealed that the geochronology resulting from paleogeology could be cross-examined with biomolecular clock at a finer scale. | Yongdong Dai Changkui Wu Feng Yuan Yuanbing Wang Luodong Huang Zihong Chen Wenbo Zeng Yao Wang Zhuliang Yang Pusheng Zeng Paul Lemetti Xuanxue Mo Hong Yu | 2020 | Geoscience Frontiers2020，11，3： | 2 |
| 8 | Characteristics of carbonaceous aerosol in the region of Beijing, Tianjin, and Hebei, China显示文摘 | Zhao Pusheng Dong Fan Yang Yadong He Di Zhao Xiujuan Zhang Wenzong Yao Qing Liu Huaiyu | 2013 | Atmospheric Environment2013，，： | 2 |
| 9 | A Unified Approach to Spatial Outlier Detection显示文摘 | Shekhar S Lu Chang-Tien Zhang Pusheng | 2003 | International Journal on Advances of Computer Science for Geographic Information System2003，7，2： | 1 |
| 10 | Independence number in claw-free graphs 显示文摘 | Wang Chunxiang Fei Pusheng | 2009 | Acta Mathematica Scientia2009，29，1： | 1 |
| 11 | A Franlework for Mining Sequential Patterns from Spatio-Temporal Event Data Sets显示文摘 | Huang Yam Zhang Liqin Zhang Pusheng | 2008 | IEEE Transactions Oil Konwledge and Data Engineering2008，20，4： | 1 |
| 12 | A unified approach to detecting spatial outliers 显示文摘 | Shekhar S Lu Changtien Zhang Pusheng | 2003 | Geolnformatica2003，7，2： | 1 |
| 13 | Strategy and Model for Control of Hydatid Disease 显示文摘 | Pusheng Chi Harjiang Turhun | 1994 | EndemicDiseases Bulletin1994，9，4： | 1 |
| 14 | Denoising of SAR Images Based on Lifting Scheme Wavelet Packet Transform显示文摘According to the different characteristics that signal and noise exhibit during wavelet decomposition, a new denoising method based on the lifting scheme wavelet packet decomposition is presented. In this method, the SAR images are decom- posed by using the best wavelet packet and the norm of each sub-band are calculated; signals and noise can be discriminated based on the norm and soft-threshold method, and the images can be denoised. Experiments show that the proposed algorithm has excellent performance in denoising SAR images, and can remove most noise of images with well-kept texture detail informa- tion. The calculating speed of the method is twice the speed of the general wavelet packet transform algorithm. | WANG Wenbo YI Xuming FEI Pusheng | 2008 | Geo-Spatial Information Science2008，11，4： | 1 |
| 15 | On the Relationships Between Clustering and Spatial Co-location Pattern Mining显示文摘 | Huang Yan Zhang Pusheng | 2008 | International Journal on Artificial Intelligence Tools2008，17，1： | 1 |
| 16 | Genetic evolutionary structural optimization 显示文摘 | Liu Xia Yi Weijian Li Q S Shen Pusheng | 2008 | Journal of Constructional Steel Research2008，64，： | 1 |
| 17 | A Unified Approach to Detecting Spatial Outliers显示文摘 | Shashi Shekhar Chang-Tien Lu Pusheng Zhang | 2003 | GeoInformatica2003，，2： | 1 |
| 18 | Character- ization of resuspended dust in six cities of North China显示文摘 | ZHAO Pusheng FENG Yinchang ZHU Tan | 2006 | At- mospheric Environment2006，40，30： | 1 |
| 19 | Structure-Activity Relationships of Pyrazole Derivatives as Cannabinoid Receptor Antagonists显示文摘 | Ruoxi Lan Qian Liu Pusheng Fan | 1999 | J Med Chem1999，42，： | 1 |
| 20 | Characterizations of resuspended dust in six cities of North China 显示文摘 | ZHAO Pusheng FENG Yinchartg ZHU Tan | 2006 | Atmos Environ2006，40，30： | 1 |
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