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A new method for spatio-temporal prediction of rainfall-induced landslide

Science china Earth Sciences 2006年第4期49卷 421-430页

作者： DING Jixin1,2. YANG Zhifa2. SHANG Yanjun2. ZHOU Shenghua1 & YIN Juntao3 1. china non-{2. metals resource geological survey, beijing 100012. china 2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Key Laboratory of Engineering Geomechanics, beijing 10002., china 3. School of Geoscience & Environmental Engineering, Central South University, Changsha 410083, china china non-{2. metals resource geological survey Beijing China Institute of Geology and Geophysics Chinese Academy of Sciences Key Laboratory of Engineering Geomechanics Beijing China School of Geoscience & Environmental Engineering Central South University Changsha China

geological condition and rainfall are two most principal conditions inducing landslides in the Chongqing region. By analyzing the forming conditions of rainfall-induced landslides, a new method for spatio-temporal prediction of rainfall-induced landslide is brought forward on the basis of grading and overlapping geological condition and rainfall factor in this paper. At first, semi-quantitative assessment and grading for the geological condition of a certain area or slope can be carried out with the multi-factor interactive matrix. Then the severity of rainfall in that area is grading according to the maximum daily rainfall and the total rainfall in a rainfall course. Finally, the “landslide probability judgement factor” can be worked out through grading and overlapping “geological condition influenc- ing factor” and “rainfall influencing factor”, by which the landslide can be graded into 4 grades, they are landslide extremely easily happening, landslide easily happening, landslide difficultly happening and landslide hardly ever happening respectively. More accurate spatio-temporal prediction of rain- fall-induced landslides can come true on the ground of detailed geological survey of some dangerous slopes in an area and more precise weather forecast. Finally, the reliability and feasibility of carrying out the spatio-temporal prediction of rainfall-induced landslides with the method of “two factors” grading and overlapping are validated by the example of Jipazi landslide.

关键词： rainfall-induced landslide, geological condition, rainfall, two factors, grading and overlapping, interactive matrix, spatio-temporal prediction.

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Effects of road networks on ecosystem service value in the Longitudinal Range-Gorge Region

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Science Bulletin 2007年第S2期 180-191页

作者： WANG Juan~(1,2. CUI BaoShan~(1+) LIU ShiLiang~1 DONG ShiKui~1 WEI GuoLiang~1 LIU Jie~1 1 Sate Key Joint Laboratory of Environmental Simulation Pollution Control,School of Environment,beijing Normal University,beijing 100875,{2. 2.china non-ferrous metals resource geological survey,beijing 10002.,{2.

Based on the land use(LU)(in 1985 and 2.00)and road networks(RN)data in the Longitudinal Range- Gorge Region(LRGR),ecosystem services value(ESV)loss under the disturbance of road networks was estimated by using landscape degradation index(LDI)to clarify the effects of human activities on ecosystem service function(ESF).Results show that the ESV decreased more than 65×10～8 Yuan(RMB) due to the transformation of ecosystems in the study area during the pest 16 *** ecosystems influenced by road networks of different grades account for 5.4% of the total land in the study *** ecosystems lost their ESV of 1900×10～8 Yuan(RMB)by the disturbance of *** effect of RN on the ESV decreased *** forecast shows that ESV will be decreased 1.2./a on average in 2.10 and 2.2. due to RN *** effect of ecosystem structure change on ESV was complex and *** disturbance of RN,one of the human activities influencing ESF is considered,further study end new method should be developed to accurately estimate the loss of ESV and the ecosystem function.

关键词： ecosystem service value road networks landscape degradation index Longitudinal Range-Gorge Region

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Methane-rich fluid evolution of the Baogutu porphyry Cu-Mo-Au deposit,Xinjiang,NW china

Methane-rich fluid evolution of the Baogutu porphyry Cu-Mo-A...

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中国科学院地质与地球物理研究所第十届(2.10年度)学术年会

作者： Ping Shen~(a,*),Yuanchao Shen~a,Jingbin Wang~(a,b),Heping Zhu~a,Lijuan Wang~(a,b),Lei Meng~(a,b) a Key Laboratory of Mineral resources,Institute of Geology & Geophysics,Chinese Academy of Sciences,P.O.Box 982.,beijing 10002.,{2. b {2. non-ferrous metals resource geological survey,beijing 100012.china

Baogutu is the first porphyry Cu-Mo-Au deposit discovered in Western Junggar,Xinjiang,NW *** ore-bearing intrusion is a dioritic intrusive complex that includes stage 1 diorites and minor stage 2.diorite *** stage 1 diorites have produced concentric potassic and propylitic alteration zone and overprinted phyllic alteration and host much of the Cu-Mo-Au mineralization at *** Baogutu porphyry Cu-Mo-Au deposit consists of unusually disseminated and minor vein-style mineralization. The fluid evolution occurred in stage 1 diorite from late magmatic stage to hydrothermal stage(stages 1B and 1C) is constructed based on alteration and fluid inclusion analysis by microthermometry,Raman Spectroscopy and Quadrupole Mass Spectrometer. Five fluid types are distinguished and they are L1(liquid-rich 2.phase),L2.liquid-vapor 2.phase),V1 (vapor-rich 2.phase),V2.mono-phase vapor),and H(multi-phase solid).The dominant inclusions rich in reductive CH plus HO while minor inclusions rich in CH and *** inclusions in quartz from the late magmatic stage contain the most brine inclusions and less other inclusions with CH-rich and HO-rich *** inclusions in quartz from stage 1B contain all fluid types and have CH-rich and CH + HO compositions with rare *** inclusions in quartz from stage 1C are characterized by more vapor inclusions without brine inclusions and a clear CO concentration in a few assemblages with CH + CO composition. Using microthermometry,we estimate fluid trapping conditions at T>400℃and P= 1500 to 3100 bar in late magmatic stage,T= 2.0 to 400℃and P = 50 to 32. bar in disseminated quartz in stage 1B,T= 180 to 400℃and P = 2. to 2.0 bar in vein quartz in stage 1B,and T= 170 to 400℃and P = 2. to 2.0 bar in stage *** late magmatic conditions are compatible with the fluid evolution as a result of CH-rich inclusions derived from mantle *** hydrothermal conditions in stages 1B and 1C with small P-T fluctuations are compatible wit

关键词： Methane-rich fluid inclusions The Baogutu porphyry Cu-Mo-Au deposit Western Junggar Xinjiang

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Lead Isotope Studies of Massive Surphur-Iron-Gold Deposits in the Tongling Area, Anhui Province

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Acta Geologica Sinica(English Edition) 1992年第2期66卷 177-189页

作者： Huang Bin Research Institute of Geology and Mineral resources, china National {2.ferrous metals Industry Corporation. Guilin, Guangxi Sun Sheping Research Institute of Geology and Mineral resources China National Non ferrous Metals Industry Corporation Guilin Guangxi

Pb isotope ratios and their variation have been measured and explained on ores of massive S-Fe-Au depos-its hosted in the Middle-Upper Carboniferous, on feldspars from diorite bodies closely related tomineralization and on whole rocks from ore-hosting strata (carbonate rocks) in the Tongling area, Anhui Prov-ince. Through a comparison of Pb isotope features of these geological bodies, it has been suggested that oresubstances of the deposits were derived from ore-hosting strata. In the meanwhile, the measurement of ore Pbisotopes of different mineralization types of the same deposit indicates that different mineralization types havedistinct Pb isotope characteristics, showing the potentiality of the Pb isotopic method used in mineral explora-tion.

关键词： Pb Anhui Province Lead Isotope Studies of Massive Surphur-Iron-Gold Deposits in the Tongling Area Gold

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THE　FIRST　AND　INDEPENDENT　TELLURIUM　ORE　DEPOSIT　IN　DASHUIGOU，SHIMIAN　COUNTY，SICHUAN　PROVINCE，china

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Scientia Geologica Sinica 1994年第1期 109-113页

作者： Chen Yuchuan Yin Jianzhao and Zhou Jianxiong(Chinese Academy of geological Sciences, beijing 100037)Yang Baichuan({2.-ferrous Rare and Precious metals Company in Sichuan Province, Chengdu 610072.

ＴＨＥＦＩＲＳＴＡＮＤＩＮＤＥＰＥＮＤＥＮＴＴＥＬＬＵＲＩＵＭＯＲＥＤＥＰＯＳＩＴＩＮＤＡＳＨＵＩＧＯＵ，ＳＨＩＭＩＡＮＣＯＵＮＴＹ，ＳＩＣＨＵＡＮＰＲＯＶＩＮＣＥ，ＣＨＩＮＡ￥ＣｈｅｎＹｕｃｈｕａｎ；ＹｉｎＪｉａｎ... 详细信息

ＴＨＥＦＩＲＳＴＡＮＤＩＮＤＥＰＥＮＤＥＮＴＴＥＬＬＵＲＩＵＭＯＲＥＤＥＰＯＳＩＴＩＮＤＡＳＨＵＩＧＯＵ，ＳＨＩＭＩＡＮＣＯＵＮＴＹ，ＳＩＣＨＵＡＮＰＲＯＶＩＮＣＥ，ＣＨＩＮＡ￥ＣｈｅｎＹｕｃｈｕａｎ；ＹｉｎＪｉａｎｚｈａｏａｎｄＺｈｏｕＪｉａｎｘｉ...

关键词： ORE TELLURIUM china AND

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火焰原子吸收法测定矿石中铋

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分析试验室 1988年第10期 34-35页

作者：胡慕良西南有色勘探公司308队化验室

本文研究了以铋306.8nm线原子吸收测定铋的最佳工作条件。对铁、钙等的干扰作了解释,并实验证实用富燃性火焰能有效地消除干扰,30多种共存离子不影响测定。工作曲线直线范围0—50μg/mL,特征浓度0.34μg/mL/1％吸收,适于0.01％以上矿石... 详细信息

本文研究了以铋306.8nm线原子吸收测定铋的最佳工作条件。对铁、钙等的干扰作了解释,并实验证实用富燃性火焰能有效地消除干扰,30多种共存离子不影响测定。工作曲线直线范围0—50μg/mL,特征浓度0.34μg/mL/1％吸收,适于0.01％以上矿石中铋的测定。

关键词：乙炔流量消除干扰 nm 原子吸收富燃性火焰共存元素负干扰共存离子燃烧器高度矿石

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综合物探方法在DQ地区地热勘查中的应用

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江苏地质 2004年第4期28卷 210-213页

作者：刘益中江苏省有色金属华东地质矿产勘查局814队江苏镇江212005

DQ市国土资源局在目标区内投入重磁电综合物探方法进行地热勘查。通过适合城市施工的测网布设与高精度的数据采集 ,结合地质地球物理特征的资料处理和针对地热目标的异常提取 ,解释该区水文构造地质条件与地热远景预测 ,提出地热开发的... 详细信息

DQ市国土资源局在目标区内投入重磁电综合物探方法进行地热勘查。通过适合城市施工的测网布设与高精度的数据采集 ,结合地质地球物理特征的资料处理和针对地热目标的异常提取 ,解释该区水文构造地质条件与地热远景预测 ,提出地热开发的有利井位。并以近期施工的钻井试水情况。

关键词：地球物理地热勘查目标场电性分布构造地质

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对有色地勘单位改革的思考

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中国国土资源经济 2013年第2期26卷 20-22页

作者：龚强黑龙江省有色金属地质勘查局哈尔滨150090

目前正在分类推进事业单位改革。有色地勘单位具有行业特殊、专业性强、资金投入大、投资周期长、风险性高和高危行业等特点。制约有色地勘单位改革发展的矛盾主要有原始积累、矿业权、地勘队伍主营与兼营的选择等。有色地勘单位转方式... 详细信息

目前正在分类推进事业单位改革。有色地勘单位具有行业特殊、专业性强、资金投入大、投资周期长、风险性高和高危行业等特点。制约有色地勘单位改革发展的矛盾主要有原始积累、矿业权、地勘队伍主营与兼营的选择等。有色地勘单位转方式、促改革既需要政府给予政策支持,还需要有色地勘单位加强自身建设,以积极的态度应对改革。

关键词：地勘单位特殊性改革发展政策建议

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