自然资源管理视角下江苏城市地质调查工作新思考

城市地质调查是城市规划建设和运行管理的基础工作。江苏在全国率先覆盖地级市的城市地质调查工作,形成具江苏特色的工作机制、工作方法、工作模式和工作成果,但尚不能满足自然资源管理的需要。本文在全面分析江苏城市地质调查工作成效和不足的基础上,基于自然资源管理需求,构建了由多尺度三维地质调查、多要素自然资源调查、多系统生态地质调查、多维度地下空间评价、资源环境监测网建设和城市地质信息系统及服务平台建设组成的城市地质调查工作新体系,并提出精准服务国土空间规划、建立地质大数据开放共享平台、推广“地质+”成果转化创新和探索后工业化时代工作方向等城市地质调查工作新思考。     

甘肃省城市地质调查工作探析

城市地质工作贯穿于城市建设发展的全过程,是城市规划建设和经济社会发展的重要基础支撑,是未来地质工作的重要发展方向。围绕各城市规划建设、运行、转型升级、选址布局、防灾减灾、美化环境等所亟需的自然资源与城镇化进程中面临的各种地质环境问题,结合甘肃省情对地质工作的需求,提出甘肃省城市地质工作在未来8年里的总体战略构想,开展基础性综合地质填图、多要素城市地质调查、城市地质信息化智慧化建设,对城市开发建设、地质资源绿色利用、地方重大工程建设、城市生态安全体系构建,提供地质支撑。     

浅谈“矿地融合”在城市地质调查中的重点与应用——以徐州城市地质为例

随着城乡一体化发展,统筹协调矿区矿产资源开发、土地资源节约集约利用和生态文明建设,积极推动经济社会发展规划、土地利用规划、生态环境保护规划、矿产开发规划等实现"一张图"矿地融合等工作势在必行。徐州作为江苏省"矿地融合"的试点城市,通过城市地质调查工作,紧密围绕"矿地融合"理念,在服务城市化建设、开闭应急新水源、生态国土优化、构建"大数据"平台等方面进行了尝试。根据项目实施经验,浅谈了"矿地融合"在城市地质调查中的重点和应用,供大家参考讨论。     

浅谈“矿地融合”在城市地质调查中的重点与应用——以徐州城市地质为例

随着城乡一体化发展,统筹协调矿区矿产资源开发、土地资源节约集约利用和生态文明建设,积极推动经济社会发展规划、土地利用规划、生态环境保护规划、矿产开发规划等实现"一张图"矿地融合等工作势在必行。徐州作为江苏省"矿地融合"的试点城市,通过城市地质调查工作,紧密围绕"矿地融合"理念,在服务城市化建设、开闭应急新水源、生态国土优化、构建"大数据"平台等方面进行了尝试。根据项目实施经验,浅谈了"矿地融合"在城市地质调查中的重点和应用,供大家参考讨论。     

浅谈“矿地融合”在城市地质调查中的重点与应用——以徐州城市地质为例

随着城乡一体化发展,统筹协调矿区矿产资源开发、土地资源节约集约利用和生态文明建设,积极推动经济社会发展规划、土地利用规划、生态环境保护规划、矿产开发规划等实现"一张图"矿地融合等工作势在必行。徐州作为江苏省"矿地融合"的试点城市,通过城市地质调查工作,紧密围绕"矿地融合"理念,在服务城市化建设、开闭应急新水源、生态国土优化、构建"大数据"平台等方面进行了尝试。根据项目实施经验,浅谈了"矿地融合"在城市地质调查中的重点和应用,供大家参考讨论。     

中国城市地质调查进展与展望

城市地质工作是城市规划建设的重要基础,贯穿于城市运行管理的全过程。做好城市地质工作,对推进中国新型城镇化建设和新时代生态文明建设具有非常重要的现实意义和战略意义。依据城市发展阶段将城市地质调查划分为城市起步阶段的专项调查阶段、城市扩容阶段的水工环调查阶段、城市快速发展阶段的综合地质调查阶段和城市提质阶段的多要素城市地质调查4个阶段。在简要回顾中国城市地质专项调查和水工环调查阶段工作的基础上,对综合地质调查和多要素城市地质调查工作的思路、调查内容、取得的主要成果、工作特点以及研究进展等进行了概括和评述,总结了当代城市地质调查与研究进展,梳理了新时代城市地质工作面临的问题,以人与自然和谐共处,城乡融合,宜居城市、文明城市、智慧城市建设为目标,从理念更新、体制机制改革、理论与学科建设、技术方法创新、工作内容拓展、服务产品等角度,对城市地质未来发展做出展望。     

海绵城市建设下城市地质调查工作方向与支撑作用——以徐州市为例

海绵城市——低影响开发雨水系统构建是一种新型的城市建设理念,是基于城市雨洪管理的一种可持续的城市建设模式,已被认为是破解水生态与城市发展失衡的最佳方式。在此背景下,城市地质调查工作需转型发展,应围绕海绵城市建设规划目标及低影响设施建设可能面临的地质问题,开展相应的调查工作。本文在分析海绵城市建设途径的基础上,提出了城市地质调查工作的发展方向,并以徐州城市地质调查工作为例,阐述了城市地质调查工作在海绵城市建设中的支撑作用。     

重庆市城市地质工作思路探讨

本文通过分析城市地质工作的现状,结合重庆山地城市独有的特征,提出了现有城市地质工作存在的主要问题,并结合城市发展需求,从景观资源、地质资源及地质环境安全保障等方面出发,明确城市地质工作的四大服务对象分别为城市规划建设、防灾减灾、生态环境保护和智慧城市建设,并提出了九大工作方向,创新了城市地质服务模式,可提升城市地质工作的支撑服务能力。     

城市三维地质信息系统建设统一过程方法与实践

在总结上海等城市三维地质调查项目"城市三维地质信息系统"建设经验基础上,借鉴Rational统一软件过程思想,提出了一种城市三维地质信息系统建设统一过程模型(UGIS-UP),给出了该统一过程的核心工作流、支持工作流,讨论了准备、实施等阶段的具体实施步骤,并以上海城市地质基础信息管理与服务系统研发为例进行了分析。UGIS-UP有效整合了数据收集整理、数据中心建设、三维地质建模、迭代式开发等工作流程及人员、项目管理、方法工具等要素,是一套有关城市三维地质信息系统交付、实现及有效项目管理的最佳实践方案,能够用于指导和规范相关系统建设,提升系统建设效率,降低风险。     

徐州城市地质调查在城市“三线”划定中的应用

随着人口和经济活动的进一步聚集,生产、生活、生态空间的矛盾日益突出,"三线"(即永久基本农田保护红线、生态保护红线、城市开发边界线)的划定在我国经济结构实现转型发展关键期,对优化城乡空间结构、确保国家粮食安全、严守生态底线等至关重要。以徐州城市地质调查成果为基础,基于地质条件对城市发展的制约和影响,提出城市"三线"的调整建议,不仅可为构筑生产空间集约、生活空间宜居、生态空间优美的城市空间格局提供地质依据,亦可为城市地质调查工作提供工作转型和战略调整方向。     

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