郑州市第四纪沉积地层的空间分布特征与规律研究,与探明人类早期文明在黄河沿岸,特别是在郑州周边地区的诞生和发展关系密切,对现代城市规划布局、地下空间开发利用以及黄河生态保护与高质量发展也具有重要的支撑作用.为此,郑州市开展了地质旅游与地质文化资源调查工作,在主城区及周边不同地貌单元的第四纪沉积覆盖区实施了38 个沉积钻孔,其中有9 个为钻穿第四系的深部钻孔.根据深部钻孔分析,结合已有的HK-GA孔勘探成果,在准确划分各钻孔第四纪沉积地层结构的基础上,分别建立了各种地貌单元的标椎地层柱;通过分析对比这些不同地貌单元沉积地层的变化特征,取得了在东部平原区早更新世与中更新世普遍存在风成沉积,晚更新世转为河流与湖沼相沉积的认识和实证;沉积物物源特性分析结果,从侧面证实了黄河沉积物在区内的沉积时间可能始于晚更新世时期.
夷平面是控制"云台地貌"形成与演化的主导因素之一.云台山及周边地区数字高程模型(DEM图)显示区域上有三期比较明显的夷平面分布,通过区内地形、地貌、地质剖面、出露高程、区域分布、地貌组合特征等综合研究,开展了野外调查、测年样品采集、样品数据分析等工作,结合前人研究成果,对各期夷平面进行了详细研究,确立了各期夷平面的形成时代,为云台山世界地质公园科普旅游提供了科学依据.
Tantou Town-Qiupa Township area of Luanchuan County in Henan Province is the main producing area of Luanchuan meihua stone. In order to study the characteristics of Luanchuan meihua stone resource ,the field exploration was implemented,the physical and chemical properties were tested and analyzed. The results show that its original rock is intermediate-acidic igneous rock of Mesoproterozoic Xiong'er Group,including amygdaloidal andesite,amygdaloidal trachyandesite,amygdaloidal rhyolite,amygdaloidal dacite and amygdaloidal basaltic andesite. The Luanchuan meihua stone is abundant,has no radioactive pollution and high compression strength,with high value of ornamental and collection. Finally,some suggestions on the rational development and utilization of the Luanchuan meihua stone are raised.
云台山世界地质公园位于太行山的南部边缘,源于太行山腹地的一系列河流,切穿太行峰脊,形成众多山高谷深瀑水飞溅的峡谷群,成为南太行山旅游的核心地质遗迹景观.峡谷中河流阶地发育,通过对云台山及周边地区九条典型峡谷中河流阶地发育特征研究,探讨了河谷的发育历史;以及该地区不同时期的气候变化、新构造运动的性质和幅度,认为六级河流阶地在太行山河谷内普遍发育;但由于第四纪是强烈切割时期,所以这些河流阶地也大部分被剥蚀掉,仅在部分地区还不同程度残留有六级河流阶地的产物.
In Wulongfeng loess section of Yellow River National Geological Park of Zhengzhou ,66 m thick loess were deposited in a short span of 120 000 years,which is much faster than other loess plateau regions. This is the characteristics of stratigraphy sedimentation in the area. With the combination method of field survey and indoor test analysis,by testing stratigraphic fossils,particle size and magnetic susceptibility,we comprehensively analyzed the sedimentary environment of Wulongfeng loess section. The result shows that since the late period of Middle Pleistocene to the middle period of Late Pleistocene,this area undergone three large-scale paleoclimate cycles. The study provides scientific guidance for the changes of local paleoclimate and paleoenvironment ,and the geological investigation,and provides theoretical support for the popularization of science of geological park.
Backward Raman amplification (BRA) in plasmas has been promoted as a means for generating ultrapowerful laser pulses. For the purpose of achieving the maximum intensities over the shortest distances, an envelope matching between the seed pulse and the amplification gain is required, i.e., the seed pulse propagates at the same velocity with the gain such that the peak of the seed pulse can always enjoy the maximum gain. However, such an envelope matching is absent in traditional BRA because in the latter the amplification gain propagates at superluminous velocity while the seed pulse propagates at the group velocity, which is less than the speed of light. It is shown here that, by using self-ionizing plasmas, the speed of the amplification gain can be well reduced to reach the envelope matching regime. This results in a favorable BRA process, in which higher saturated intensity, shorter interaction length and higher energy-transfer efficiency are achieved. (C) 2014 AIP Publishing LLC.
Taking Jiaozuo Geological Museum as an example,the general situation of the study area was analyzed,the principle and idea of space layout were introduced,as well as the function of each space. It was pointed out that the design of a geological museum with local characteristics should be paid more attention to the space use.
Through the analysis of advantages and disadvantages of Yuntaishan existing geological museum, geological heritage resources and tourism development status, in combination with the construction and development trends of domestic and international geological museum, this paper proposes the construction goal of new geological museum and discusses the ways to build Yuntaishan geological museum with characteristics and featured exhibit room in detail, in the hope of providing reference for other new or renovated geopark geological museum.
Geological museum in a geopark is an important place of geopark popularization education and an essential requirement as well whether the geopark can open to the public.Many local governments made much of the geological museums construction,who devoted a huge investment to the geological museums with local characteristics.Zhengzhou Yellow River National Geopark geological museum,has witnessed popularization education,scientific research,specimens collection and entertainment being combined into the community,which makes rational use of the distinctive geoconservation resources as the Yellow River and loess in the district,and adopted the style of architecture as cave-room with modern materials.The museum made full use of models,practicality,specimens and multimedia and was supplemented by the methods of high-tech of sound,light and electricity,to introduce the luxuriant scientific connotation of the geopark geoconservation in simple language to the tourists,and has created a favorite tale of small caves composing big articles.
According to the study of Cathaysian flora and coal-bearing strata in Yuzhou,in Dafengkou area between Shenhou town and Muojie village,the total Carboniferous-Permian exposed coal bearing strata thickness exceeds 950m,most of the coal seam number up to 89.We can find a natural outcrop of almost all of coal-bearing positions in northern China and Southern China here.The discover of this Cathaysian flora is a'iron pillar'of North China Late Paleozoic coal-forming basin study,and it plays the role of a pacesetter of coalfield geological exploration,stratigraphic correlation of Henan province.Under identification,the plant fossil excavated here contained 112 genera and 306 species,of which 137 species belong to 12 types of plants.In addition,there are clay beddings which used to fire Jun porcelain.
The cavity ice is a natural marvelous spectacle Linzhou Henan.Here,ice from march to august each year,later,the ice thaw in winter.The reason of phenomenon winter-summer inversionly relate closely with the powerful effect as chimney producing by here special geological structure.The cavity ice locate high above sea level,the altitudinal difference is large with the lowest point of this area.The difference form the immense vertical chunnel by producing the enormous thick-bedded quartzose sandstone and faults structure.The chunnel resemble concealed chimney of few hundred metres altitudinal difference.Temperature is higher in summer,air pressure is lower,the effect as chimney is stronger,the volume of expansing gas dashing out the chimney mouth is greater,the absorbing heat is more by the first law of thermodynamics,it cause that temperature is lower nearby in ground until it ice.AS air pressure is higher than the chimney mouth in winter,the cavity gas diffuse out by consuming energy,it cause that temperature is higher nearby in ground.
Jiaozuo is a mining city developing on the basis of the coal industry,once its new city layout is granted that amount of coal will be covered by the city building.According to the distribution of the coal fields in Jiaozuo,especially by the existence of the proved reserve of coal the unreasonable development arrangement about the urban construction is discussed the fact the proved resource can't be exploited because of the late coverage largely,and some suggestions on the city layout are indicated in this paper.
Mountain Yuntai has become a reputation mountain by reason of layouting.Mountain Yuntai of China has succeed and obtained previous chance,this regional economic and social benefit are rising rapidly.Declaration of unioning with Mountain Wangwu and Daimei geological park of China has succeed,it has resulted that Mountain Wangwu and Daimei geological park of China has become new reputation.Yellow River National geological park Zhengzhou show by yellow loess,Yellow River,Plain Huang-Huai and Yellow River culture,it has particular local cave-typed museum,also has geopark' scientific meaning.Layouting and Declaration Yangbajing National geological park Tibet has succeed,it is a pioneering work.As proofed by facts,Building up successfully geological park has bigger economic benefits than a large gold deposit to be found out.
In recent years,the rapid development of geological tourism has shown strong vitality,and large quantities of data have revealed that geological tourism safety accident cannot be ignored.The geological tourism's particularity determines that potential dangerous factors run through each course of tourism.These include not only the factors of tourists themselves but also the insecure factors in the tourism environment and tourism corporations.This paper points out that by using methods of the safety assessment we can find,analyse and forecast the dangerous factors,aftereffect and degree of geological tourism.The paper also puts forward reasonable safety countermeasures and steps to direct the inspection of dangerous resource and the prevention of accidents.
<正>在郑州市西北部,黄河南岸,有一条东西走向的山岭,人们习惯把它称为邙山或邙岭。邙山又名北邙,是崤山的支脉。广义的邙山起自洛阳市北,沿黄河南岸绵延至郑州市北。邙山在地理位置上处于我国秦岭东西向构造体系的东端,嵩山
Ruyang Geopark is featured by dinosaur group fossils,granite landscape,and typical stratotype section.The information and physical evidence from relics accurately recorded the crust development history and evolution of human production activities and his survival.In particular dinosaur fossil discoveries in China and even in Asia will contribute to study on distribution,classification,evolution and extinction of the dinosaur,Cretaceous sauropod and on palaeogeographic environment.
The geological condition,coal seam as well as coal quality in the Jiaozuo coalfield are stated in brief.From the aspects of reservoir,gas content and composition,tectonic influencing to coalbed methane hosting conditions,the coalbed methane resource characteristics were analyzed in detail,the status quo of coalbed methane exploration and development evaluated.The paper put forward favorable districts of coalbed methane exploration and exploitation,discussed the methods and techniques of coalbed methane development.
According to the Jiaozuo city 's economy, social development and the improvement of the industrial structure, the authors reviewed the investigation and appraisal, exploration, development and reasonable utilization of mineral resources. After analyzing the problems existing in the development process of the mineral resource, they put forward development direction and strategy of its development.
In this article, the characteristics, distribution condition and the current development condition of clay minerals in Jiaozuo City are discussed. Then, the resources is evaluated. Aimed at the problems existing in clay development, the resources protection measures and reasonable suggestion to develop and use the clay resources are put forward.
The properties of CoCr and CoCr/FeNi films, produced by means of the targets facing type of sputtering method (the instrument was made in China), were investigated using VSM, X-ray diffraction and other magnetic measurements. The experimental results showed that the properties of the films were affected by formation parameters of the argon pressure, bias voltage, sputtering power and substrate tempera ture. The better Gaxis orientation films were obtained when the substrate temperature was adequeate and the depositing atomic beams was with adequate energy and low density. Under these formation conditions, the adatoms would have enough time and suitable energy to make an ample diffusion. The CoCr/FeNi flexable disks were also produced.