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Organic Phosphorus in Shallow Lake Sediments in Middle and Lower Reaches of the Yangtze River Area in China

Pedosphere 2008年第3期18卷 394-400页

作者： JIN Xiang-Can wang Sheng-Rui CHU Jian-Zhou WU Feng-Chang State Environmental Protection Key Laboratory for Lake Pollution Control Research Center of Lake Eco-EnvironmentChinese Research Academy of Environmental Sciences Beijing 100012 （China） Colleges of Resource and Environment Hebei Agriculture University Baoding 071001 （China） State Key Laboratory of Environmental geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang550002 （China）

Thirteen sediment core samples(0-10 cm) were taken from the seven lakes in the middle and lower reaches of the Yangtze River to determine the contents and distributions of organic phosphorus(P) fractions in the sediments of the shallow lakes in the *** organic P fractions in the sediments were in the order of moderately labile organic P(MLOP) > moderately resistant organic P(MROP) > highly resistant organic P(HROP) > labile organic P(LOP),with average proportional ratios of 13.2:2.8:1.3.***,MLOP,and MROP were significantly related to the contents of total organic carbon(TOC),water-soluble P(WSP),algal-available P(AAP),NaHCO3.extractable P(Olsen-P),total P(TP),organic P(OP),and inorganic P(IP).However,HROP was significantly related to OP and weakly correlated with TOC,WSP,AAP,Olsen-P,TP or *** suggested that organic P,especially LOP and MLOP in sediments,deserved even greater attention than IP in regards to lake *** terms of organic P,sediments were more hazardous than soils in lake *** OP concentrations were higher in moderately polluted sediment than those in heavily polluted sediment,LOP and MLOP were higher in the heavily polluted sediment,which indicated that heavily polluted sediment was more hazardous than moderately polluted sediment in lake eutrophication.

关键词： bioavailability chemical extracted phosphorus lake sediment middle and lower reaches of the Yangtze River area organic phosphorus fractions

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Sulfur isotope geochemistry of the Lemachang independent Ag deposit, northeastern Yunnan——A concurrent discussion on the mechanism of sulfur isotope equilibrium between barite and freibergite below 3.0℃

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chinese Science Bulletin 1999年第S2期44卷 227-230页

作者： DENG Hailin~1, LI Chaoyang~1, ZHOU Yunman~2 and wang Congwu~2 1. Open Laboratory of Ore Deposit geochemistry, Institute of geochemistry,{3., guiyang 550002, China 2. No.3.Braneh of No.1 Geology Party, Yunnan Bureau of Geology and Mineral Resources, Xundian 655205, China Open Laboratory of Ore Deposit geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China No. 3.Branch No. 1 Geology Party Yunnan Bureau of Geology and Mineral Resources Xundian 655205 China

IN the study of hydrothermal deposits sulfur isotopes bear much information about the source of sulfur,ore-forming temperature, the evolution of ore-forming fluids and the mechanism of metallogenesis. Todetermine whether sulfur isotopes reach equilibrium between fluids and sulfur-bearing minerals precipitated from the former and among the sulfur-bearing minerals is the key to the application of sulfur isotopegeochemistry to geological problems. As it has been commonly accepted that sulfur isotopic equilibrium could not be reached between sulfate and sulfide below 3.0℃, little attention has been paid to thepossible mechanism of sulfur isotope equilibrium between sulfate and sulfide below 3.0℃. However, this note presents an example to show sulfur isotope equilibrium between barite and sulfate

关键词： sulfur isotope Lemachang independent Ag deposit barite freibergite sulfur isotope equilibrium below 3.0℃.

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Enrichment mechanism of gold during the process of lateritization in southern area of the Yuanmou ancient landmass, Yunnan, China

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chinese Science Bulletin 1999年第S2期44卷 90-91页

作者： SUN Chengxing~1, wang Shijie~1, DAI Fusheng~2 and LUO Yi~2 1. State Key Laboratory of Environmental geochemistry, Institute of geochemistry,{3., guiyang 550002, China 2. Department of Geology, Kunming University of Science and Technology, Kunming 650093. China State Key Laboratory of Environmental geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China Department of Geology Kunming University of Science and Technology Kunming 650093 China

SINCE the first discovery of lateritic gold deposit which is easier to mining and dressing at Boddington inWestern Australia at the beginning of the 1980s, geologists have paid much attention to it, and it wasfound in tropical and subtropical regions. However, recently the metallogenetic mechanism has notbeen understood very well. In this note we reported some research results on the enrichment mechanism ofgold during the process of lateritization in the case of three lateritic profiles with some degree of gold enrichment located in southern area of the Yuanmou ancient landmass, Yunnan Province. The parent rocks of the investigated profiles （about 5-8 m thick） is metamorphic schist, in whichmean content of gold is 13.3.10-9. Samples were collected from two pits at Xujie （Mouding County）and an outcrop of gully at Menglingou （Yuanmou County）, dried in air and ground in agate mortar to

关键词： gold enrichment lateritizafion Yunnan.

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“两个结合”视域下习近平生态文明思想的传承与创新

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东岳论丛 2024年第8期45卷 24-30,191页

作者：王飞骆小春南京工业大学江苏南京211816

习近平生态文明思想以儒家生态智慧为文化源泉,以马克思主义生态观为理论根基,结合中国式现代化本质特征和实践要求,形成一系列原创性理论成果,实现了认识论的辩证升华、人民观的牢固确立、发展观的全面变革和治理观的全局拓展,是“两... 详细信息

习近平生态文明思想以儒家生态智慧为文化源泉,以马克思主义生态观为理论根基,结合中国式现代化本质特征和实践要求,形成一系列原创性理论成果,实现了认识论的辩证升华、人民观的牢固确立、发展观的全面变革和治理观的全局拓展,是“两个结合”在生态文明建设领域的典范。新时代生态文明建设要以习近平生态文明思想为指导,深入推进“两个结合”,全面推动契合中国实际、浸润中国文化、具有中国特色的生态文明理论创新与实践创新。

关键词：儒家生态智慧马克思主义生态观习近平生态文明思想 “两个结合”

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GRANITOIDS AND TETONIC EVOLUTION OF THE WEST KUNLUN OROGENIC BELT

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地学前缘 2000年第S1期7卷 228-229页

作者： wang Yuanlong 1,Bi Hua 2, wang Zhonggang 2, Zhu Xiaoqing 2 (1.Institute of Geology And Geophysics, chinese {3. of Science, Beijing 100029,China 2 Institute of geochemistry, chinese {3. of Science, guiyang 550002,China)

The West Kunlun orogenic belt, one of the least studied areas in China, is located at the junction between the Qinghai—Tibetan Plateau and Tarim Basin and has undergone intense tectonic action and frequent *** West Kunlun orogenic belt can be divided into five tectonic\|magmatic evolution stages according to the character of the igneous rocks, metamorphic rocks, sedimentation mode, tectonic phases and isotopic ages(Fig 1).Active stages have dominated with only short intervening stable stages. This kind of evolution is not simply repeated but that a later stage is elevation and development of its former ***\|time distribution of granitoids varies with each different tectonic\| magmatic stage as well as within different periods of the same tectonic\| magmatism stage. Take time into condition , It is an important turning movement of tectonics\|magmatism evolution during the Indo\|Sinian movement, as space the middle fault (Jiang Chunfa 1982) of the West Kunlun orogenic belt is a significant border o f tectonics\|magmatism evolution. Granitoids formed before Indo\|Sinian movement are mainly distributed to the north of the middle fault of West Kunlun. These granitoids are mostly granites of early and middle Proterozoic, Caledonian and Hercynian ages. A unique control on the granitoid evolution is that they become younger from NE to SW, crossing the regional structure line. Granitoids formed after Indo\|Sinian movement are mainly distributed to the south of the middle fault. But distribution of granitoids of early Yanshan cycle cut across the middle fault of West Kunlun Mountain. Their age distribution shows a bidirectional control with the granitoids becoming younger across the regional structural lines from NE and SW boundary fault to the interior of the fracture belts.

关键词： the West Kunlun orogenic belt tectonic\|magmatic evolution gr anitoids

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Zircon LA-ICPMS study and petrogenesis simulation of Dahuabei pluton in the Wulashan area,Inner Mongolia

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Progress in Natural Science:Materials International 2009年第12期19卷 1727-1737页

作者： Dapeng Li~(a,b),Yuelong Chen~(a,*),Liemeng Chen~c,Zhong wang~d,Jinbao Liu~d a School of Earth sciences and Resources,China University of Geosciences(Beijing),Beijing 100083.China b State Key Laboratory of Geological Process and Mineral Resources,China University of Geosciences,Wuhan 43.074,China c State Key Laboratory of Ore Deposit geochemistry,Institute of geochemistry,chinese academy of sciences,guiyang 550002,China d Geological Survey Institute of Inner Mongolia,Hohhot 010010,China [a]School of Earth sciences and Resources China University of Geosciences (Beijing) Beijing 100083 China [b]State Key Laboratory of Geological Process and Mineral Resources China University of Geosciences Wuhan 430074 China [c]State Key Laboratory of Ore Deposit geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China [d]Geological Survey Institute of Inner Mongolia Hohhot 010010 China

Dahuabei pluton in the Wulashan area,Inner Mongolia,is an alkaline and peraluminous granitic ***-ICPMS U-Pb dating of zircons indicates that this pluton crystallized at 3.0±10 *** pluton did not experience apparent zircon *** consistent temperatures between Zr saturation(765℃) and the average zircon-rutile Ti equilibrium(780℃),together with zircon ages and their CL images,indicated that there were no inherited zircons in this *** the simulation of the dry-system crystallization process of magma cooling at 200 MPa and 1100-709℃,the phase diagram and composition evolution tendency of different phases were *** magma reached its liquidus at 1069℃.Sanidine was the first crystallized phase;at 709℃the residual magma was less than 4%,and the range of 1069-719℃should be the most suitable approach to the real *** is shown that at least some part of the pluton underwent such isobaric equilibrium crystallization processes during its crystallization.

关键词： Dahuabei pluton Petrogenesis simulation geochemistry Zircon LA-ICPMS

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7~Be: A Geochemical Tracer for Seasonal Erosion of Surface Soil in Watershed of Lake Hongfeng, Guizhou, China

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Pedosphere 1996年第1期6卷 23-28页

作者： BAI ZHANGUO WAN GUOJIANG wang CHANGSHENG WAN XI HUANGRONGGUI P.H. SANTSCHIZ and M. BASKARANZ(1￣State Key Lab. Of Environmental geochemistry, Institute of geochemistry,{3.,guiyang 550002 (China))(2￣Department Of Marine Scien State Key Lab. of Environmental geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550005 China Department of Marine sciences Texas a K M University Galveston TX 77551 United States

e penetrative depth in undisturbed surface soil is within 4 mm.7￣Be activity shows exponential decrease with soil depth, which is expressed as a diffusion process.7￣Be penetrative depth in undisturbed surface soil is apparently deeper in the fall (0.22-0.3. g cm￣(-2) than in the spring (0.11-0.28 g cm￣(-2) at the same site; Whereas, ￣7Be apparent activity at the top of surface soil is higher in the spring (0.3.2.2 Bq g￣(-1_) than in the fall (0.2-0.5 Bq g￣(-1) at the same site. The ￣7Be inventory (189-544 Bq m￣(-2) changes with both locations and seasons. Although the ￣7Be flux to the earth's surface increases with amount of precipitation, its maximum inventory in the soil profiles decreases to 3.%-40% after the rainy period. Calculated by the diffusion equation, the erosion and accumulation rates of soil particles are agreeable with the observation in situ., which shows that the rates in fall are 1.5 times those in spring. The eroded soil particles almost all have been removed on the tablelands rather than transported into the drainage system. This indicstes that the soil erosion process in the karst region is only partial transportation within a short distance.

关键词： e erosion trace Lake Hongfeng watershed surface soil

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Stable carbon isotopic composition of soil organic carbon in karst area in Central Guizhou, China

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chinese Science Bulletin 1999年第S2期44卷 87-88页

作者： ZHENG Leping~(1,2), LI Tingyu~2, WAN Guojiang~2, wang Shijie~2 and OUYANG Ziyuan~2 1. Department of Environmental Science and Engineering, Shanghai University, Shanghai 200072, China 2. State Key Laboratory of Environmental geochemistry, Institute of geochemistry,{3., guiyang 550002, China Department of Environmental Science and Engineering Shanghai University Shanghai 200072 China State Key Laboratory of Environmental geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China

THE stable carbon isotopic composition of soil organic carbon is a powerful tool for discussing the source ofsoil CO2 and the relationship of CO2 source and sink between soil CO2 and atmosphere CO2 and has beenwidely studied. However, few similar researches have been done in karst area which comprises 15%global terrestrial area. Preliminary research results about the stable carbon isotopic composition of soil organic carbon in karst area are reported here. In April and August 1998, the samples were collected continuously at 5-cm intervals from 0 to -45cm depth in meadow soil profile described by Zheng and located in the Hongfong Lake area in the central Guizhou Plateau which lies in the central East-Asia karst area. CO2 for δ13./sup> C analysis was prepared

关键词： δ13. of soil organic carbon karst area Guizhou Province.

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TEA domain transcription factor 1(TEAD1)induces cardiac fibroblasts cells remodeling through BRD4/Wnt4 pathway

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Signal Transduction and Targeted Therapy 2024年第3期9卷 1209-1220页

作者： Shuai Song Xiaokai Zhang Zihang Huang Yongchao Zhao Shuyang Lu Linqi Zeng Fengze Cai Tongyao wang Zhiqiang Pei Xinyu Weng Wei Luo Hao Lu Zilun Wei Jian Wu Peng Yu Li Shen xiaochun Zhang Aijun Sun Junbo Ge Department of Cardiology Zhongshan HospitalFudan UniversityShanghai Institute of Cardiovascular DiseasesShanghaiChina State Key Laboratory of Cardiology Zhongshan HospitalFudan UniversityShanghaiChina Key Laboratory of Viral Heart Diseases National Health CommissionShanghaiChina Key Laboratory of Viral Heart Diseases Chinese Academy of Medical SciencesShanghaiChina National Clinical Research Center for Interventional Medicine ShanghaiChina Department of cardiac surgery Zhongshan HospitalFudan UniversityShanghaiChina Institutes of Biomedical sciences Fudan UniversityShanghaiChina Shanghai Institute of Hypertension Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina

Cardiac fibroblasts(CFs)are the primary cells tasked with depositing and remodeling collagen and significantly associated with heart failure(HF).TEAD1 has been shown to be essential for heart development and ***,fibroblast endogenous TEAD1 in cardiac remodeling remains incompletely *** analyses revealed consistently upregulated cardiac TEAD1 expression in mice 4 weeks after transverse aortic constriction(TAC)and Ang-l *** investigation revealed that CFs were the primary cell type expressing elevated TEAD1 levels in response to pressure *** TEAD1 knockout was achieved by crossing TEAD1-floxed mice with CFs-and myofibroblasts-specific Cre *** and histological analyses demonstrated that CFs-and myofibroblasts-specific TEAD1 deficiency and treatment with TEAD1 inhibitor,VT103.ameliorated TAC-induced cardiac ***,RNA-seq and ChiP-seq analysis identified Wnt4 as a novel TEAD1 ***1 has been shown to promote the fibroblast-to-myofibroblast transition through the Wnt signalling pathway,and genetic Wnt4 knockdown inhibited the pro-transformation phenotype in CFs with TEAD1 ***,coimmunoprecipitation combined with mass spectrometry,chromatin immunoprecipitation,and luciferase assays demonstrated interaction between TEAD1 and BET protein BRD4,leading to the binding and activation of the Wnt4 *** conclusion,TEAD1 is an essential regulator of the pro-fibrotic CFs phenotype associated with pathological cardiac remodeling via the BRD4/Wnt4 signallingpathway.

关键词： TEAD1 expression Wnt4

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Oxygen isotope as a tracer of REE fractionation in water-rock interaction

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chinese Science Bulletin 1999年第S2期44卷 224-226页

作者： DENG Hailin~1, LI Chaoyang~1, ZHOU Yunman~2 and wang Chongwu~2 1. Open Laboratory of Ore Deposit geochemistry, Institute of geochemistry{3., guiyang 550002, China 2. No.1 Geological Party, Yunnan Bureau of Geology and Mineral Resources, Xundian 655205, China Open Laboratory of Ore Deposit geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China No. 1 Geological Party Yunnan Bureau of Geology and Mineral Resources Xundian 655205 China

STABLE oxygen isotope is not only an effective approach to tracing water-rock interactions, but also canprovide much information about ore-forming temperature and source and evolution of ore fluids in thestudy of hydrothermal deposits. The rare-earth elements (REE) can be used to trace the sources ofore-forming materials and can also, to some extent, indicate the physical and chemical properties of fluids in the geochemical processes. The combination of these two aspects of research can effectivelyprobe into the geochemical behavior and evolution of REE in the process of water-rock interaction duringhydrothermal ore deposition. On the other hand, the essence of REE as tracers in hydrothermal mineralization can be better understood. In this note the Lemachang independent Ag deposit in northeastern Yunnan is selected for a case study.

关键词： oxygen isotope tracer water-rock interaction REE fractionation.

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