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Geological setting of some classical selenium-bearing formations in china

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chinese Science Bulletin 1999年第S2期44卷 185-186页

作者： WEN Hanjie and QIU Yuzhuo institute of Geochemistry, chinese academy of sciences,{3. institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China

SELENIUM is a highly dispersed element with a lower Clarke of 0.05×10-6 and rarely forms its own independent deposits in the crust. In recent years by the discovery of a series of selenium-bearing deposits（such as Laerma selenium-gold deposit and Yutangba selenium deposit） and selenium-rich strata （westHubei, Laerma, Ziyang, Langao, northwest Hunan, etc.）, the character and genesis of the seleniumbearing formation （SBF） have been noted by many researchers. 1 Some classical SBF in china In china the classical SBFs include: （i） The Lower Cambrian SBF in Laerma, west Qinling: Thebackground value of selenium is 5.47×10-6, and the selenium content of the sillcalite and slate （mainrock type） averages 8.70×10-6 and 3.05×10-6 respectively. （ii） The Lower Cambrian SBF inZiyang and Langao, east Qinling: Selenium is present in relatively high abundance in the SBF, averaging3.89×10-6 in the slate, 2.86×10-6 in the sillcalite. （iii） The Lower Cambrian SBF in northwest Hu-

关键词： selenium selenium-bearing formation geological setting.

中国政治经济学年度发展报告（2023.（下）

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政治经济学评论 2024年第3期 90+207-208页

作者： Center for Studies of Contemporary Political Economy,Research institute for 21st-Century Marxism,Nankai University·University of chinese academy of Social Science Center for Teaching and Research on Capital,Renmin University of {3. National institute of Socialist Political Economy with chinese Characteristics,Renmin University of {3. 南开大学·中国社会科学院大学21世纪马克思主义研究院当代政治经济学研究中心中国人民大学《资本论》教学与研究中心中国人民大学全国中国特色社会主义政治经济学研究中心

编者按2023.，高质量发展扎实推进，新质生产力加快形成，我国经济总体回升向好，圆满实现发展主要预期目标。为针对性地破解经济恢复发展中的难题，聚焦推进中国式现代化进程中的重点、难点问题，中国政治经济学界开展系统深入研究，...

编者按2023.，高质量发展扎实推进，新质生产力加快形成，我国经济总体回升向好，圆满实现发展主要预期目标。为针对性地破解经济恢复发展中的难题，聚焦推进中国式现代化进程中的重点、难点问题，中国政治经济学界开展系统深入研究，取得系列代表性成果。为准确刻画学界研究进展和轨迹，推动中国经济学理论体系的构建和完善，本刊精选议题如期奉上《中国政治经济学年度发展报告（2023.》。自2010年起，本刊连续十四年发布《中国政治经济学年度发展报告》，“年度发展报告”专栏已成为本刊标志性特色栏目。2023.报告聚焦12个专题，分为（上）（下）两篇，其中专题1—6于报告（上）篇刊登，专题7—12由报告（下）篇刊登。2023.报告（下）选题如下：

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Dynamic processes of ore-forming fluid and the localization of orebody: case study on the sediment-hosted gold deposits of southwestern Guizhou, china

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chinese Science Bulletin 1999年第S2期44卷 263-265页

作者： ZHANG Chengbo and ZHANG Zheru institute of Geochemistry, chinese academy of sciences,{3. institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China

1 Geological setting and occurrence features of the sediment-hosted gold deposits OVER 100 sediment-hosted gold deposits and occurrences of southwestern Guizhou lie near the sonthemedge of the Yangtze craton, which is composed of crystalline rocks of Proterozoic age, overlain mainly byPaleozoic and Lower to Middle Triassic shallow-marine platform and reef facies carbonates that gradesouthward and eastward into a thick section of interbedded siltstones and turbidite sandstones. Clasticdeposits were from the Yunkai Old Land and the Jiangnan Old Land respectively. The rocks were foldedand faulted during the Yanshanian orogeny, 190-65 Ma ago. Mineral deposits were mainly located inthe breccia horizon at the base of the Longtan Formation of Upper Permian, underlain by the massive graylimestone of Lower Permian with a karst unconformity, and the high-angle fault zones in the Triassicargillaceous limestone interlayered with shale, arkose, and fine-grained turbidite sandstone. No

关键词： sediment-hosted gold deposits fossil hydrothermal system mathematical model.

^(40)Ar/^(3.)Ar dating of shear deformation of the Xianshuihe fault zone in west Sichuan and its tectonic significance

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Science china Earth sciences 2004年第9期47卷 794-803页

作者： ZHANG Yueqiao1, CHEN Wen2, 3.& YANG Nong1 1. institute of Geomechanics, chinese academy of Geological {3., Beijing 100081, china 2. institute of Geology, chinese academy of Geological {3., Beijing 10003., china 3. institute of Geology and Geophysics, chinese academy of sciences, Beijing 100029, china institute of Geomechanics Chinese Academy of Geological Sciences Beijing China institute of Geology Chinese Academy of Geological Sciences Beijing China institute of Geology and Geophysics Chinese Academy of Sciences Beijing China

Based on field geological survey, structural measurements and classical Ar/Ar dating of mica, biotite and K-feldspar, we obtain cooling ages for Miocene left-lateral shear along the Xianshuihe fault zone. The results document two thermal events during the sinistral shear. The early event (12-10 Ma) corresponds to rapid cooling of the Zheduoshan granitic massif from above 700℃ to below 3.0℃. The late event (5-3.5 Ma) corresponds to cooling of granites intruded along the eastern side of the fault zone. These dating results provide important thermochronological constraint on the timing of late Cenozoic eastward extrusion of the Chuan-Dian Block in the SE Tibetan margin.

关键词： Xianshuihe fault zone, Zheduoshan granitic massif, sinistral shear deformation, 40Ar/3.Ar dating, late Cenozoic.

Hydrothermal sedimentation and lead-zinc deposit in Dengying formation of the Sinian system in Panxi region

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chinese Science Bulletin 1999年第S2期44卷 67-68页

作者： ZHU Laiming and RONG Tianjun institute of Geochemistry, chinese academy of sciences,{3. institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China

IN addition to vanadium titano-magnetite, lead-zinc ore is also one of the mineral resources with great exploring potentiality in the Panxi region of Sichuan Province, china. In the carbonate rock strata of theSinian Dengying Formation which account for about 3.5%-11.4% of the total thickness of the strataexposed in the Panxi region there are quite a number of the Pb-Zn deposits that account for 53.4% of thetotal Pb-Zn ore reserve in the whole region. Furthermore, some large Pb-Zn deposits such as the Tianbaoshan Pb-Zn deposit in Huili, the Daliangzi Pb-Zn deposit in Huidong and the Yinchanggou Pb-Zn deposit in Ningnan are also hosted in the Sinian Dengying Formation. Why? Previous studies indicated that the high background values of Pb and Zn, favorable lithofacies andpaleogeographic conditions and good ore-hosting structures made the Sinian Dengying Formation a pre-

关键词： hydrothermal sedimentation lead-zinc deposit Dengying formation Panxi region.

Involvement of deep-source components in Sb mineralization on the southwestern margin of the Yangtze massif A discussion on its possibility

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chinese Science Bulletin 1999年第S2期44卷 50-52页

作者： PENG Jiantang and HU Ruizhong institute of Geochemistry, chinese academy of sciences,{3. institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China

1 Geology Extensively developed on the southwestern margin of the Yangtze massif are epithermal deposits suchas gold, silve r, antimony, mercury, arsenic, uranium, copper and lead-zinc ore deposits, as well asbarite, fluorite, iceland spar and rock crystal deposits, which constitute a unique low-temperature metallogenic domain. Except for the Gongguan deposit, the important Sb deposits in china are concentrated inthis low-temperature metallogenic domain, constituting the Hunan-Guizhou-Guangxi-Yunnan Sb ore *** general this ore belt extends in the NNE direction, measuring 1 900 km or more in length and 200 kmin width. A total of 505 Sb deposits (or occurrences) are known, accounting for 85.5 % of the

关键词： deep-source Sb mineralization Yangtze massif.

Gold occurrence mechanism of fine disseminated gold deposits

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chinese Science Bulletin 1999年第S2期44卷 18-20页

作者： WANG Xiaochun and ZHANG Zheru institute of Geochemistry, chinese academy of sciences,{3. institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China

THE fine disseminated gold deposits are widely distributed in the southwestern china and western UnitedStates. They have a mineral association of pyrite, arsenopyrite, marcasite, realgar, orpiment, stibnite,cinnabar, quartz, calcite and barite, and an element association of gold, arsenic, antimony, mercury,thallium and barium. Gold occurs as disseminated and in small size. This note aims to discuss the disseminated nature and micron size of the gold.

关键词： gold mechanism fine disseminated gold deposit.

Discovery of immune related factors in Fenneropenaeus chinensis by annotation of ESTs

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Progress in Natural Science:Materials International 2004年第1期14卷 48-55页

作者： SHEN Yaoqing 1,2 , XIANG Jianhai 1*, WANG Bing 1,2 , LI Fuhua 1 and TONG Wei 3.1. Experimental Marine Biology Laboratory, institute of Oceanology, chinese academy of sciences, Qingdao 266071,china 2. Graduate School of the chinese academy of sciences, Beijing 10003., china 3. Genomics & Bioinformatics institute, chinese academy of sciences, Beijing 1013.0, china) chinese Acad Sci Inst Oceanol Expt Marine Biol Lab Qingdao 266071 Peoples R China chinese Acad Sci Grad Sch Beijing 100039 Peoples R China chinese Acad Sci Geonom & Bioinformat Inst Beijing 101300 Peoples R China

A total of 10446 expressed sequence tags (ESTs) are obtained by a large scale sequencing of a cDNA library from cephalothorax of adult Fenneropenaeus chinensis . An EST analysis platform was built up based on local computers and bioinformatic techniques were used to annotate these ESTs in order to promptly find possible functional genes, especially for immune related factors. About 4% of the ESTs show similarity to the coding sequences of such factors, including lectin, serine protease, serpin, lysozyme, etc. These ESTs provide a partial profile of the immune system in F. chinensis and useful information for further study on these genes.

关键词： Fenneropenaeus chinensis bioinformatics ESTs immune factors

A mixed method for measuring low-frequency acoustic properties of macromolecular materials

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Science china(Physics,Mechanics & Astronomy) 2006年第6期49卷 729-739页

作者： LIU Hongwei1,YAO Lei1,3.ZHAO Hong1,3.ZHANG Jichuan2,3.& XUE Zhaohong2 1. National Key Laboratory of Acoustics,institute of Acoustics,chinese academy of {3.,Beijing 100080,china 2. institute of chemistry,chinese academy of {3.,Beijing 100080,china 3. Graduate University of chinese academy of sciences,Beijing 100049,china National Key Laboratory of Acoustics Institute of Acoustics Chinese Academy of Sciences Beijing China Graduate University of chinese academy of sciences Beijing China institute of chemistry Chinese Academy of Sciences Beijing China

A mixed method for measuring low-frequency acoustic properties of macro-molecular materials is presented. The dynamic mechanical parameters of materials are first measured by using Dynamic Mechanical Thermal Apparatus(DMTA) at low frequen-cies,usually less than 100 Hz; then based on the Principles of Time-Temperature Super-position (TTS),these parameters are extended to the frequency range that acousticians are concerned about,usually from hundreds to thousands of hertz; finally the extended dynamic mechanical parameters are transformed into acoustic parameters with the help of acoustic measurement and inverse analysis. To test the feasibility and accuracy,we measure a kind of rubber sample in DMTA and acquire the basic acoustic parameters of the sample by using this method. While applying the basic parameters to calculating characteristics of the sample in acoustic pipe,a reasonable agreement of sound absorp-tion coefficients is obtained between the calculations and measurements in the acoustic pipe.

关键词： low-frequency acoustic properties,dynamic mechanical properties,Principles of Time-Temperature Superposition,acoustic pipe,sound absorption coefficient.