北京顺义区地质环境的主要特征及治理措施

本文在北京顺义区国土资源与地质环境大调查工作的基础上，对顺义区的主要地质环境进行了初步调查，认为该区地质环境比较脆弱，如断裂活动性强、地震活动频度高、地壳稳定性差、第四纪地层发育、松散易液化的细粉砂土及不规则分布的软土分布面积较广，地面及地基工程地质条件较差、水资源不足，容易发生地震、地裂缝、砂土液化、地面沉降、水环境污染及地基失稳等地质灾害，建议进行专门的综合性地质环境调查研究工作，为顺义区总体发展规划、保护地质环境以及减少地质灾害损失等提供科学依据。     

北京市顺义城区地裂缝的成因及防治措施初探

本文在1／5万区域地质调查及北京市顺义区国土资源与地质环境大调查的基础上，通过野外调查，参照区域地质、物探、化探、水文及实地监测资料，对北京市顺义地区地裂缝的主要特征与变形速度进行了深入研究，初步探讨了其主要成因，认为构造活动和地下水过量超采是导致地裂缝的主要因素，并据此提出了防治意见与措施。     

北京顺义木林-塔河一带地裂缝成因及防治措施初探

在150000区域地质调查及北京市顺义区国土资源与地质环境大调查的基础上,通过野外工作,参照大量区域地质、物探、化探、水文及实地监测资料,对北京市顺义区木林&塔河一带地裂缝的特征与变形速度进行了研究,初步探讨了其主要成因,认为构造活动和地下水超采是导致地裂缝形成的主要因素,据此提出了防治意见与措施.     

北京顺义平各庄—柳各庄一带饮用天然矿泉水资源远景区预测

本文在1／5万区调及顺义区国土资源与生态环境大调查的基础上，通过分析研究大量的物探，化探，钻探及水文资料，大致圈定了平各庄－柳各庄－带的饮用天然矿泉资源勘察远景区，并简要地探讨了它的成因。     

北京市顺义平原区地质环境的主要特征及地质灾害现状

文章对顺义区地质环境的主要特征及地质灾害现状进行了初步研究。该区地质环境比较脆弱，断裂活动性强，地震活动频度高，松散易液化的细粉砂土及不规则分布的软土分布面积较广，地面及地基工程地质条件较差、水资源不足，容易发生地震、地裂缝、砂土液化、地面沉降、水环境污染及地基失稳等地质灾害。建议进行专门的综合性地质环境及地质灾害调查研究工作，为顺义区总体发展规划、保护生态环境以及减少地质灾害损失等提供科学依据。     

论污染场地的几个问题

为了更加科学、规范地开展污染场地调查工作,作者依据多年积累的污染场地调查经验和对国外相关研究成果的跟踪,对污染场地的定义、分类、调查阶段划分及污染调查测试清单的确定进行了探讨。通过分析对比十余个发达国家污染场地的定义,给出了污染场地的定义。借鉴污染物属性与地下水赋存介质分类法思想,提出了污染物种类与场地介质组合的污染场地分类方法。基于场地调查工作的实质,考虑简化性、标志性和可操作性,将污染场地调查划分为资料收集、初步调查、详细调查三个阶段。在归纳总结国内外筛选和确定优先控制污染物研究成果的基础上,结合实际情况和工作经验,提出了确定污染场地调查测试清单的步骤与方法。     

选择典型污染场地 研究最佳取样方法——《典型污染场地土壤与地下水调查技术与评价研究》项目进展情况

按照《典型污染场地土壤与地下水调查技术与评价研究》项目2006年工作任务要求，方法所项目组在时间紧、任务重、经费下达晚的情况下，科学安排，积极运作，争取年底全面完成2006年工作任务。项目组在污染场地的选址上，经深入调查，前期论证，根据污染现状，结合本项目研究目的，选定了典型污染场地。     

石油类污染建筑场地的环境调查与治理

污染造成的环境损害和土壤与地下水质量降低,直接影响生命健康与环境安全。污染企业搬迁后遗留场地的调查检测与修复治理,是土地资源开发利用与管理的重要环节。结合两个炼油厂污染地块在土地再开发期间所进行的土壤环境调查和治理修复案例,阐述了石油类污染地基土的环境调查方法、评价方式和治理修复措施,以期为污染土壤的调查与治理修复提供借鉴。     

我国地下水污染调查建立全流程现代化调查取样分析技术体系

在实施全国首轮地下水污染调查评价过程中,通过综合攻关和集成创新,建立了调查、取样、测试与质量控制技术体系。研发了系列取样技术,攻克敏感性痕量组分采集技术难题,解决了送样周期问题;借助遥感技术与卫图解读土地利用与污染源分布信息,解析历史污染源分布;集成水土污染快速调查系统,实现现场快速查明污染现状、识别污染源;建立了数据库建设与质量保障技术体系;构建了有机分析测试与质量控制技术平台。提升了我国地下水污染调查技术水平,先后组织了千余人的技术培训,培养了一大批创新型地下水污染调查评价技术专业人才。     

黔西南煤区岩溶地下河污染调查方法探析

黔西南地区岩溶分布面积广,地下水与地表水转换频繁,岩溶环境极其脆弱性,地下水保护程度低。区内煤企广布,排污现象普遍,污染问题严重,引起的社会关注度高。在调查分析的基础上,总结了黔西南煤区岩溶污染的调查方法,尤其是地下河的污染调查,为类似区域的污染调查、污染责任认定等工作提供了参考。     

The terrestrial fauna of the Late Triassic Pant-y-ffynnon Quarry fissures,South Wales,UK and a new species of Clevosaurus (Lepidosauria: Rhynchocephalia)

Pant-y-ffynnon Quarry in South Wales yielded a rich cache of fossils in the early 1950s, including articulated specimens of new species (the small sauropodomorph dinosaur Pantydraco caducus and the crocodylomorph Terrestrisuchus gracilis), but no substantial study of the wider fauna of the Pant-y-ffynnon fissure systems has been published. Here, our overview of existing specimens, a few described but mostly undescribed, as well as freshly processed material, provides a comprehensive picture of the Pant-y-ffynnon palaeo-island of the Late Triassic. This was an island with a relatively impoverished fauna dominated by small clevosaurs (rhynchocephalians), including a new species, Clevosaurus cambrica, described here from a partially articulated specimen and isolated bones. The new species has a dental morphology that is intermediate between the Late Triassic Clevosaurus hudsoni, from Cromhall Quarry to the east, and the younger C. convallis from Pant Quarry to the west, suggesting adaptive radiation of clevosaurs in the palaeo-archipelago. The larger reptiles on the palaeo-island do not exceed 1.5?m in length, including a small carnivorous crocodylomorph, Terrestrisuchus, and a possible example of insular dwarfism in the basal dinosaur Pantydraco.     

The effect of water on accessory phase solubility in subaluminous and peralkaline granitic melts

The solubilities of columbite, tantalite, wolframite, rutile, zircon and hafnon were determined as a function of the water contents in peralkaline and subaluminous granite melts. All experiments were conducted at 1035 °C and 2 kbar and the water contents of the melts ranged from nominally dry to approximately 6 wt.% H₂O. Accessory phase solubilities are not affected by the water content of the peralkaline melt. By contrast, solubilities are affected by the water content of the subaluminous melt, where the solubilities of all the accessory phases examined increase with the water content of the melt, up to 2 wt.% H₂O. At higher water contents, solubilities are nearly constant. It can be concluded that water is not an important control of accessory phase solubility, although the water content will affect diffusivities of components in the melt, thus whether or not accessory phases will be present as restite material. The solubility behaviour in the subaluminous and peralkaline melts supports previous spectroscopic studies, which have observed differences in the coordination of high field strength elements in dry vs. wet subaluminous granitic glasses, but not for peralkaline granitic glasses. Lastly, the fact that wolframite solubility increases with increasing water content in the subaluminous melt suggests that tungsten dissolved as a hexavalent species.     

Quaternary stresses revealed by calcite twinning inversion: insights from observations in the Savonnières underground quarry (eastern France)

Calcite samples were extracted both from the rock matrix and the superficial coating of a karstified fault plane of an underground quarry, located in the eastern border of the Paris basin. The karstification is dated as Quaternary. Analysis of mechanical calcite twinning reveals that only the calcite matrix has also undergone a compression trending WNW that can be attributed to the Mio-Pliocene alpine collision. Both coating and matrix have undergone a strike-slip regime with σ₁ roughly trending north–south, that could correspond to the regional present-day state of stress, a strike-slip compression rather trending NNW, modified by local phenomena. To cite this article: M. Rocher et al., C. R. Geoscience 335 (2003).     

HYDROGEOLOGY

正20141756 Chen Ruige(Mathematical College,China University of Geosciences,Beijing100083,China);Zhou Xun Numerical Simulation of Groundwater Level Fluctuation in a Coastal Confined Aquifer with Sloping Initial Groundwater Level Induced by the Tide(Geological Bulletin of China,ISSN1671-2552,CN11-4648/P,32(7),2013,p.1099-1104,6 illus.,16 refs.) Key words:confined water,groundwater level     

METAMORPHIC PETROLOGY

正20141408 Cai Jia(Institute of Geology,Chinese Academy of Geological Sciences,Beijing100037,China);Liu Fulai Petrogenesis and Metamorphic P-T Conditions of Garnet-Spinel-Biotitebearing Paragneiss in Danangou Area,Daqingshan-Wulashan Metamorphic Complex Belt(Acta Petrologica Sinica,ISSN1000-0569,CN11-1922/P,29(7),     

SERIALS

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GEOPHYSICAL EXPLORATION

正20142386An Guoying(China Aero Geophysical Survey and Remote Sensing Center for Land and Resources,Beijing 100083,China)Application of Satellite Remote Sensing in Regional Hydrogeological Investigation:Taking Cenozoic Strata in Wenquan Sheet(1∶250 000)of Karakoram Range as an Example(Geosci-     

QUATERNARY GEOLOGY & GEOMORPHOLOGY

正20141016An Chengbang(Key Laboratory of Western China’s Environmental Systems,Ministry of Education,Lanzhou University,Lanzhou 730000,China);Zhao Yongtao Lake Records during the Last Glacial Maximum from Xinjiang,NW China and Their Climatic Impli-     

PETROLEUM GEOLOGY

正20141538 Cao Qing(School of Earth Sciences and Engineering,Xi’an Petroleum University,Xi’an 710065,China);Zhao Jingzhou Characteristics and Significance of Fluid Inclusions from Majiagou Formation,Yichuan Huangling Area,Ordos Basin(Advances in Earth Science,ISSN1001-8166,CN62-1091/P,28(7),2013,p.819-828,7 illus.,3 tables,43 refs.)     

GEOCHEMISTRY

正20142002 Wei Hualing(Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang065000,China);Zhou Guohua Element Content and Mineral Compositions in Different Sizes of Soil in Tongling Area,Anhui Province(Geological Bulletin of China,ISSN1671-2552,CN11-4648/P,32(11),2013,p.1861