河南省地热资源开发与保护浅析

河南省地热资源丰富,以洗浴为主的直接利用量较大,利用水平低,浪费严重,保护意识淡薄。分析了地热开发利用现状及存在的主要问题,指出利用应以供暖为主,实行总量控制开发。根据利用现状及地热地质条件,全省划分了五个地热资源开发保护区,提出了编制规划、推行回灌、加强勘查、提高利用水平等保护措施。     

山西省地热资源及其开发利用模式探讨

山西省地热资源丰富,但分布不均,总体开发利用程度偏低,存在资源勘查研究程度低、分散开采普遍、重开采、轻回灌、创新发展研究重视不够等问题,对地热资源可持续利用不利。在山西省地热资源现状调查评价的基础上,系统总结了山西省地热资源的分布规律、主要热储类型、特征以及水热型地热资源开发利用现状,按照不同热储类型及地热资源赋存地质条件,提出地热资源开发利用模式建议,并提出在山西省打造温泉小镇的构想。     

贵州省地热资源开发问题及对策建议

贵州省地热资源较丰富。地质构造的有利组合,构成了一些良好的热储构造,并在地表出露了较多的温泉,为地热资源的开发利用提供了良好的条件。近年来,随着经济发展水平的提高,地热资源的开发已形成了热点。但是由于目前省内系统的地热资源研究程度较低,盲目开发的现象严重,并存在破坏资源的危机。为保障资源的可持续利用,促进社会和经济发展,政府职能部门应加强地热资源的勘察和资源管理。     

皖江经济带地热资源调查与开发利用

地热资源调查是皖江经济带地质调查的重要工作之一,是调整能源结构,构建环境友好型社会的要求。基于皖江经济带以往地热资源调查评价成果,阐述研究区地热资源的分布特点、形成机理、种类及资源总量,分析总结研究区目前地热资源开发利用现状及存在问题: 皖江经济带地热资源虽然丰富,但仅有部分水热型地热资源开发利用程度高,且资源利用效率较低; 水热型地热资源以温热水、温水为主,总体品位不高; 浅层地热能资源总量丰富,分布广泛,开发利用技术成熟,适宜大力开发利用,但大部分未开展调查评价工作。建议采取梯级或循环利用措施提高利用效率,综合开发利用地热资源; 突破现有模式,寻找高品位地热资源; 开展县级浅层地热能调查评价工作; 建设地热资源开发利用监管平台。     

东营黄河三角洲地热资源特征及其开发利用

东营黄河三角洲地热资源非常丰富,在分析地热地质及地热水的常规离子、微量元素、有害物质、放射性等的基础上,着重分析了地热资源开发利用,目前主要以供暖、洗浴、养殖为主。同时,关注了地热资源不合理开采及尾水排放对环境的负面影响问题。根据当前地热资源开发利用现状及存在的问题,提出了利用梯级开发模式、改善尾水排放、地热井动态监测等资源保护与环境治理的建议。     

西安地热资源SWOT分析与开发利用

针对西安影响地热资源可持续开发的开发水平低,资源利用方式落后,管理体制不健全等问题,运用SWOT态势分析法,对西安市地热资源开发利用进行系统诊断,提出了加强科学研究、提高利用水平、明确管理职责、注重环境保护等发展战略,以期为西安市地热资源进一步开发及区域可持续发展提供科学依据。     

文登市地热资源现状及开发建议

文登市地热温泉资源丰富,且开发历史悠久。为更好地保护开发地热资源,文登市国土资源局确立了＂有效节约和保护矿产资源,加强地热资源开发利用管理,打造中国温泉之都,构建资源节约型、环境友好型社会＂的指导思想。在充分考虑区域温泉地质条件、资源勘查程度、温泉水质量及其开发利用现状的基础上,结合规划区内各地段产业结构特点、地理条件、经济发展水平及未来产业结构调整方向,按照走集约化开发、规模化发展的总体思路,全面整顿和规范文登地热资源开发秩序。通过强化温泉资源开发审批、建立勘查开发利用投入机制、加强温泉资源的勘查与保护工作和加大查处力度等措施,全面提升了地热资源开发利用水平。     

湖南地下热水资源的开发利用

湖南省是我国地下热水资源较丰富的地区之一，全省已发现地下热水（〉23℃）资源179处，其中低温136处、中温40处、中高温1处、高温2处，但目前湖南省地下热水的开发利用方式较粗放，造成了资源的严重浪费。文章阐述了湖南省地热资源的控制因素、分布特征及水化学类型等特点，分析了目前地热资源的开发利用现状及存在的问题，并就地热资源开发利用方面的一些问题进行了探讨。     

云南地热资源及开发利用

云南位于喜马拉雅－特提斯构造域与滨太平洋构造域的复合部位，地质构造十分复杂，新生代火山岩浆活动激烈。特殊的地质地理条件，形成了丰富的地热资源，使云南成为我国地热资源大省。对云南地热资源的研究已有２０多年的历史，然而地热资源开发利用的层次却较低，高温地热资源至今还未得到真正利用。本文通过对前人资料的综合研究，将全省地热资源按温度分为过热水－高温、中、低温和低温三种类型；按成因分为火山岩浆型、新生代盆地型和褶皱山区断裂带型，并对地热带的分布规律及地热田的成因机理进行了分析研究，描绘了全省地热资源的总貌，继而指出地热资源在工业、农业、矿业、医疗饮疗保健、旅游等事业方面广阔的开发利用前景。     

加强江苏地热资源勘查利用的若干建议

地热是一种具有很大开发潜力的新能源。针对江苏的地热资源，介绍了其矿地质条件与分布情况，分析了开采现状以及存在问题，论述了资源的勘查评价与开发利用前景，最后提出了勘查利用的建议。     

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