比利时农村整治的经验

农村问题,传统上都是指农业问题,很少涉及入——在农村空间活动的人。依地区情况不同,有些农村已处于城市化的过程之中,另一些农村则人口外流,最后人口密度小到难以配备作为农村规划中心任务的基础设施和服务设施。新的经济活动向农村的扩散,是比利时瓦隆地区的另一重要趋势;其性质、规模及其地方特色理应做到与农村特点紧紧相吻合。当地的经济首创精神应得到有效发挥。如果广大农村做不到这些,那么指向就业中心和服务中心的人口外流,就会继续加剧,交通基础设施也就更显得重要。所有这些就是我们经常谈论的话题。     

Implication of fault interaction to seismic hazard assessment in Sichuan-Yunnan provinces of southeastern China

Coulomb stress changes associated with the strong earthquakes that occurred since 1904 in Sichuan and Yunnan provinces of China are investigated. The study area comprises the most active seismic fault zones in the Chinese mainland and suffers from both strong and frequent events. The tectonic regime of this rhombic-shaped area is affected by the eastern extrusion of the Tibetan highland due to the collision of Eurasian Plate against the Indian lithospheric block along the Himalayan convergent zone. This movement is accommodated on major strike-slip intraplate fault zones that strike in an E-W direction. The gradual 90° clockwise rotation of the faults in the study area contributes to the complexity of the stress field. The seismic hazard assessment in this region is attempted by calculating the change of the Coulomb Failure Function (?CFF) arising from both the coseismic slip of strong events (MS≥6.5) and the stress built-up by continuous tectonic loading on major regional faults. At every step of the stress evolutionary model an examination of possible triggering of each next strong event is made and the model finally puts in evidence the fault segments that apt to fail in an impending strong event, thus providing fu-ture seismic hazard evaluation.     

TIMS图像处理中去相关扩展的解析及其应用

本文基于数学分析和几何解析，结合ＴＩＭＳ图像的信息特征，对去相关扩展图像处理方法的机理进行了综合分析。分析结果表明，去相关扩展增强了原始图像中相关程度较低的那部分信息，增大了地物的光谱反差，提高了图像的地质解译效果。笔者结合局部地区的研究成果，说明经去相关扩展处理后的ＴＩＭＳ图像可提供详细、准确的岩石地层单元信息，是当前大比例尺遥感地质填图和区域找矿的一种有效新手段。     

The First Discovery of the Earliest Devonian Conodont Zonal Fossil from the "Gavuu Member" in Mushgai Area of South Gobi,Mongolia

1IntroductionThe study of the Palaeozoic stratigraphy has been carried out in Mongolia for more than 80 years, but merely limited to the benthic macrofossiles. For the last ten years the study of conodonts has been em-ployed in biostratigraphic analyses. But up to now, Palaeozoic conodont sequences in Mongolia have not been recognized. Conodonts as a leading fos-sil group, should be paid much attention for dating ages of the Palaeozoic rocks and for their interna-tional correlations. …     

焉耆盆地活动断层的晚第四纪右行走滑

本研究对天山东南侧山间盆地——焉耆盆地的晚第四纪右行走滑活动断层的位移和滑动速率进行了测量.详细的卫星图像分析和野外调查表明活动断层(开都河断层带)主要分布在盆地的南缘,具典型的走滑断层特征.发育在晚更新世—全新世冲积扇中的水系记录了3～250 m的右行错断和位移的累积.冲积扇中的断层陡坎高1 m到25 m,沿断层带走向左行雁列状断层崖呈现,向NE和SW倾.基于河道的错断,14C数据和断层岩组构的分析可以得出:①活动断层的平均右行走滑速率为8 mm/a,垂直分量的速率为1 mm/a,(②典型的单次地震断裂事件产生的错断量为3～7 m,③大地震事件(Ms>7)的平均重复间隔约为500年,④开都河断层带最新的地震断裂事件发生在过去2 500 a间.与印度—欧亚板块碰撞相关联的天山是一个逆冲构造占主导地位的造山带,而山间盆地中晚第四纪的走滑断层表明了这种造山机制中具有水平滑动.     

THE PROCESSES OF ATMOSPHERIC IMPURITIES TRANSPORTATION OVER THE QINGHAI—TIBET PLATEAU AS REVEALED BY SEASONAL RECORDS OF SNOW CHEMISTRY

THE PROCESSES OF ATMOSPHERIC IMPURITIES TRANSPORTATION OVER THE QINGHAI—TIBET PLATEAU AS REVEALED BY SEASONAL RECORDS OF SNOW CHEMISTRY     

塔里木盆地东南缘油气勘探前景的遥感综合分析

塔里木盆地南缘石油遥感地质的综合分析研究认为，研究区经历了古生代地台演化阶段、中生代前陆盆地演化阶段和新生代拗陷盆地演化阶段；研究区油气形成的生、储、盖组合齐全，油气运移和聚集构造条件有利。通过卫星遥感影像解译出的５个环形构造都是有利的油气勘探远景区。     

遥感岩石学的研究及其进展

结合近几年来的研究实践以及国内外大量研究成果的分析，提出了遥感地质学中的一个重要分支科学－－“遥感岩石学”的概念及定义，介绍了遥感岩石学的三个重要研究内容：（１）岩石，矿物的光谱特征研究；（２）机载遥感数据的岩石信息提取与识别；（３）星载遥感数据的岩石信息提取与识别，并对遥感岩石学的未来发展作了展望。     

LAND RESOURCES SURVEY BY REMOTE SENSING AND ANALYSIS OF LAND CARRYING CAPACITY FOR POPULATION IN TUMEN RIVER REGION

ＬＡＮＤ　ＲＥＳＯＵＲＣＥＳ　ＳＵＲＶＥＹ　ＢＹ　ＲＥＭＯＴＥ　ＳＥＮＳＩＮＧ　ＡＮＤ　ＡＮＡＬＹＳＩＳ　ＯＦ　ＬＡＮＤ　ＣＡＲＲＹＩＮＧ　ＣＡＰＡＣＩＴＹ　ＦＯＲ　ＰＯＰＵＬＡＴＩＯＮ　ＩＮ　ＴＵＭＥＮ　ＲＩＶＥＲ　ＲＥＧＩＯＮＬＡＮＤＲＥＳＯＵＲ...     

青藏高原若干地点的第四纪冰川年代学* ——深切怀念孙殿卿院士

青藏高原第四纪冰川时空演化问题广受关注。应用宇宙成因核素暴露年龄测定方法开展高原古冰川的年代学研究,对青藏高原聂拉木、唐古拉山、义敦海子山和折多山等4个地区的第四纪冰碛物进行了\{¹⁰ Be\},²⁶ Al和²¹ Ne暴露年龄测定,获得了青藏高原不同地点第四纪冰川发育的年代学数据,结果表明青藏高原出现了多期第四纪冰期,分别为YD事件、末次冰期晚阶段、末次冰期早阶段、倒数第2次冰期和倒数第3次冰期。