电阻率层析成像技术在滑坡调查中的应用——土耳其研究实例   总被引：1，自引：0，他引：1  

MahmutG．Drahor  任政委 《水文地质工程地质技术方法动态》2009,(4):16-24

电阻率层析成像是一种近地表地球物理勘查方法,它广泛应用于滑坡在内的各种地质、环境和工程等地质勘查。本次研究中,对土耳其艾登市瑟凯地区的一个滑坡场地进行了电阻率层析成像（ERT）勘查。2003年,由于开挖作业,导致一所新建学校附近斜坡上的上第三系地层变得不稳定,并在一场大雨之后出现了移动。随之而来的滑坡覆盖了这所学校的部分建筑物。作者采用温纳排列形式的二维电阻率方法,沿滑坡体布设三条剖面,得到了滑坡体的几何结构和特征等有用信息。另外,为了解电阻率法对滑坡的响应曲线,在野外调查之前,利用电阻率方法对滑坡进行了二维合成电阻率模拟研究。在滑坡场地还打了八个钻孔。钻孔和电阻率层析成像勘查两样成果都指出该场地内有一断层。沿着滑坡轴的测线上电阻率数据反映了该断裂面。  相似文献   

Mineralogy of Holocene Sediments from the Southwestern Black Sea Shelf (Turkey) in Relation to Provenance, Sea-level and Current Regimes     

Emel BAYHAN  Mustafa ERGN  Abidin TEMEL  Seref KESKN 《《地质学报》英文版》2005,79(4):552-563

Grain size and mineral composition of core sediments were used to investigate influences of various terrestrial and marine conditions, which have prevailed on the southwestern Black Sea shelf during the Holocene. Siliciclastic mud with small amounts of sand and gravel from nearby coastal hinterland is the principal sediment type, whereas sediments deposited near the shelf edge and the Istanbul Strait and off the Duru Lake （a paleo-river mouth） constitued large quantities of sand and gravel of both biogenic and terrigenic origin. Variable amounts of aragonite, 1 nmmicas, quartz, feldspars, calcite and dolomite constitute the dominant non-clay minerals in bulk sediments. The clay mineral assemblage in the 〈 2 μm fraction is made up of smectite, illite, kaolinite and chlorite. Aragonite and calcite are mainly derived from benthic accumulations, whereas feldspars （mainly plagioclase） and smectite reflect magmaticvolcanic provenance and the distribution of 1 nm-micas and chlorite correlate with nearby metamorphic sources onland. Nevertheless, grain size and mineral distribution generally indicate a combination of effects of wind and wave climate, longshore and offshore cyclonic currents, changing sea-level stands and nearby source rock and morphological conditions. It is also suggested that at least part of clay minerals could be derived from the northwesterly Danube River input.  相似文献   

土耳其Sinop盆地晚白垩世大洋红层中的放射虫     

罗辉 《地学前缘》2005,12(2):45-50

在土耳其北部Sinop盆地Kayadibi剖面上发育了一套以红色灰岩及红色硅质岩为特征的,被称之为Kapanboˇgazi组的远洋或半远洋环境下的海相红色沉积。其中的硅质岩里产丰富且保存完好的放射虫化石。其放射虫组合以Crucella cachensis, Alievum superbum?, Patellula verteoensis, Patellula ecliptica, Dictyo mitra multicostata, Pseudodictyomitra pseudomacrocephala, Halesium triacanthum, Pessagnobrachia fabia nii, Pseudoaulophacus putahensis 和Paronaella communis 等属种同时出现为特征,可以与北美、西特提斯及俄罗斯等地建立的Alievum superbum 放射虫带对比,时代为土仑期。  相似文献   

Hydrogeochemistry and Water Quality Evaluation along the Flow Path in the Unconfined Aquifer of the Diizce Plain, North-western Turkey     

Nail UNSAL Mehmet CELIK 《《地质学报》英文版》2010,(1):213-222

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土耳其蓝色清真寺艺术魅力赏析     

李丹妮 《中国地名》2012,(8):46-47

金碧辉煌世界十大奇景之一高超艺术回教世界国家中独一无二的设计水平规模宏大可同时容纳五千回教徒祈祷环绕着四个较小的圆顶,它的下方还有30个更小的圆顶,大圆顶周围立有六根传音塔;寺内的墙壁全部用蓝、白两色的依兹尼克磁砖装饰,是回教  相似文献   

Concentrations of heavy metals in fly ash from CAN coal combustion thermal power plant （Canakkale-Turkey）-II     

Alper Baba Gulbin Gurdal 《中国地球化学学报》2006,25(B08):53-53

Coal combustion can mobilize trace elements by introducing them to terrestrial, aquatic and atmospheric environments, and if leached, these elements may cause the contamination of soils, surface waters and groundwater. Therefore, these elements may become a hazard to the environment because of their contribution to the formation of toxic compounds, if the ash is not utilized or disposed of properly. This possible contamination could lead to health, environmental and land-use problems. A fluid coal-t-fred thermal power plant （320 MWel） has been in operation since 2005 in Can （Canakkale-Turkey） and currently produces almost half a million tones of fly ash per year. Fly ash is classified based on the nature of constituents present. Fly ashes of Class C contain less than 70% but greater than 50% of silica, alumina, and iron oxide which are typical for the western part of Turkey. When the ash concentrations of these three constituents exceed 70%, fly is classified as F, which is representative of those, produced from Can. Fly ash is enriched in many trace elements particularly metals in this thermal power plant ash. These metals are part of the pyrite structure in the coal and become concentrated in the fly ash during the combustion process. These elements may be surface adsorbed on the glassy spherical fly ash particles. Elements that are surface adsorbed can be quite mobile.  相似文献   

Problems of high fluoride waters in Turkey     

Xiaohong XIA Yong QIN 《中国地球化学学报》2006,25(B08):55-55

The geochemistry theory can provide information about the distribution, contents and migration in nature of the chemical elements in minerals, rocks, soils, waters, atmospheres, etc. Therefore, it has been applied extensively. Nowadays the petroleum supply throughout the world is in tension. The coal resources are unfriendly to the environment, because coals contain many harmful chemical elements. How to exploit the efficient clean liquid energy from coals is a hot subject of study. This paper deals with the present domestic and international applications of geochemistry in coal liquefaction research, on the basis of coal geology, points out the shortages and problems that need to be dissolved, clarifies the necessity of coal liquefaction technique research under the coal geochemistry background. To enhance the oil production and reduce environmental effects, the direct coal liquefaction technique research should take it into consideration the three-aspects coupling pattern, which includes the influence of coal direct liquefaction activity combined with different geochemical parameters, the different migration behaviors of harmful elements in the coal liquefaction process, and the geological control factors of coal-forming environments. It is indicated that the coal geochemistry is extensively applied in coal direct liquefaction technique research.  相似文献   

拜占庭·君士坦丁堡·伊斯坦布尔     

周定国 《地理教学》2005,(12):6-6

伊斯坦布尔坐落在伊斯坦布尔海峡，即博斯普鲁斯海峡南端与马尔马拉海交会处的两岸地段，是世界上唯一一座地跨欧亚两洲的国际大都市。它是土耳其最大的城市和港口，人口总数超过1200万。历史上曾是显赫一时的罗马帝国、拜占庭帝国和奥斯曼帝国的首都，时间总共长达1600多年，这在世界史上拥有无以伦比的时间跨度；并冠以掷地有声的三个名称即古称拜占庭、旧称君丁坦丁堡和现称伊斯坦布尔而享誉全球。  相似文献   

世界上的跨洲国家     

刘伉 《地图》2006,(6):38-43

我们国内的媒体,不时介绍些世界地理方面的知识,这当然很好,但其间不乏有误。有些小的失误,可以置之不论;而有的误差偏大,就不宜等闲视之,值得予以辨析,以正视听。比如最近某报旅游版一篇题为《土耳其:迷人的亚欧桥梁》的文章中,说“世界上有两个国家横跨欧亚大陆——俄罗斯和土耳其”,这就有误了,而且这个“误”还不是很小。盖以当今横跨欧亚大陆的国家多了去了,何止两个!从传播正确的知识考虑,有必要予以略加辨正;又鉴于当今一些国家的跨洲情况相当复杂,特借机作一全球范围的概括性说明。  相似文献   

土耳其Kalecik坝渗漏问题处理     

葛秀珍 《水文地质工程地质技术方法动态》2003,(5):31-31

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