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JAN LUNDQVIST LARS-KÖNIG KÖNIGSSON 《Boreas: An International Journal of Quaternary Research》1980,9(4):209-210
The 1979 Uppsala Symposium was arranged as a continuation of the symposium held in Uppsala in 1978 on the deglaciation of Scandinavia earlier than 10,000 B.P. Papers from the latter symposium were published in Boreas , Vol. 8, No. 2 (1979). In the present issue, eleven contributions from the 1979 Symposium are included, among them three general summaries for Norway, Finland, and Sweden. The Symposium and this issue of Boreas form part of the joint Nordic activity within the IGCP project entitled 'Quaternary Glaciations in the Northern Hemisphere' 相似文献
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冻土力学与工程的国际研究新进展——2000年国际地层冻结和土冻结作用会议综述 总被引：12，自引：0，他引：12
2 0 0 0年国际地层冻结和土冻结作用会议于 2 0 0 0年 9月在比利时召开。会议共设 6个专题 :热质迁移、冻结敏感性和冻胀、力学性质、环境土冻结、工程设计和工程实例。围绕这 6个专题 ,介绍了国际冻土力学与工程方面研究的一些主要进展 ,既反映了国际冻土力学与工程研究的水平 ,也代表了 2 1世纪冻土学发展的方向。 相似文献
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JAN MANGERUD 《Boreas: An International Journal of Quaternary Research》1985,14(3):259-261
A Nordic symposium, with several invited speakers from other countries, was held in Lund, Sweden, in February 1985. The aim was to evaluate dating methods that could be used within the project 'Late Quaternary stratigraphy in Norden'. Some of the conclusions were: A more optimistic view was expressed about uranium-series dating of molluscs. The radiocarbon method offers a potential for some samples of an age up to 40–50 ka. Thermoluminescence dating is now established as an important method for some sediments of Late Quaternary age. Aminoacid analysis is used with success to establish a relative chronology on carbonate fossils. 相似文献
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2019年5月10日~12日,中国地震学会工程勘察专业委员会2019学术年会暨第四届海洋工程地质发展战略研讨会在中国海洋大学顺利召开。本次会议由山东省海洋环境地质工程重点实验室承办,防灾科技学院、国家自然科学基金委员会地球科学部协办。共有来自国内42家知名科研院所和企事业单位的120余位专家学者参会,围绕"海洋地震及次生灾害勘测与防灾"主题展开讨论。会议共设11场特邀报告、9场自由报告,还安排了海洋工程地质发展战略研讨会以及野外考察。各位代表围绕会议主题,进行了热烈讨论,碰撞出了新的学术火花。不仅对于促进海洋地震及其次生灾害形成机理与灾害防控研究具有重要意义,而且为海洋工程地质工作者搭建了一个交流学术思想、分享科研进展的平台。 相似文献
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青藏铁路设计与建设——第六届国际冻土工程会议回顾 总被引：1，自引：1，他引：0
The 6^th International Symposium on Permafrost Engineering was successfully held in China in September 2004. About 150 scientists and engineers from 7 countries attended the symposium in Lanzhou on 5～7 September, and about 35 people from 6 countries participated in the field trip along the QinghaiTibet Highway/Railway on 8～13 September and the seminar in Lhasa on 14 September 2004. During the Symposium, the latest progress on permafrost engineering and the surveys, design and construction of the Qinghai-Tibet Railway were exchanged and inspected. Fifty-eight technical papers in English from the Symposium were published in the first volume of the Proceedings of the Symposium, as a supplement of the Journal of Glaciology and Geocryology, before the symposium. About 6 papers from the symposium are published in the second volume in the volume 27(1) of the Journal of the Glaciology and Geocryology, after the symposium. The Qinghai-Tibet Railway (QTR) under construction will traverse 632 km of permafrost, and the engineers are facing unprecedented engineering and environmental challenges. With the QTR under construction and to be completed in 2007, permafrost engineering has become the research focus of permafrost scientists and engineers in China. Many encouraging and promising achievements in permafrost engineering have been obtained during the past three years. However, there are still numerous engineering and environmental problems needing to be solved or resolved. In the discussions, some experts pointed out that methods, such as removal of snow cover on the embankments and toe areas, light-color embankments and side slope surfaces, awnings for shading the solar radiation, hairpin or tilted thermosyphons, could be applied to actively cool the roadbed of the QTR. Some new ideas on utilization of the natural cold reserves were proposed to protect the QTR permafrost roadbed from thawing. Many questions and answers on the survey, design, construction, operations, maintenance and environmental protection were exchanged in situ and in the Lhasa seminar with participation by some major railway designers, regulators and administrators. 相似文献
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山东莱州三山岛北部海域金矿钻探工程项目从2012年开始,至2015年底结束。施工陆地与海上钻孔138个,总工作量15万余米,合同额2.4亿元。此项目属于施工周期长、工作量大、投资额高、施工机台多、施工管理难度大的超大型钻探工程项目。因其涉及海上钻探,施工环境、交通运输、实施手段都较陆地钻探有很大的不同。结合该项目海上钻探实际的施工管理情况,从设定组织机构入手,重点对工程的安全、进度、质量、成本等管理方面进行研究、分析,细分各岗位职责,严抓重点工序与关键环节,提出了一套适合海上钻探施工的安全、科学、高效的管理方法,可为类似海上钻探项目提供一定的经验参考。 相似文献
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Mateja Jemec Auflič Matjaž Mikoš Timotej Verbovšek Željko Arbanas Snježana Mihalić Arbanas 《Landslides》2018,15(2):381-384
The 3rd Regional Symposium on Landslides in the Adriatic-Balkan Region (3rd ReSyLAB) was held in Ljubljana, Slovenia, from June 11 to 13, 2017, with 70 participants from nine countries (Austria, Bosnia and Hercegovina, Croatia, Czech Republic, Italy, Republic of Macedonia, Serbia, Slovenia, Spain)—scientists, engineers, researchers, students, experts, politicians, and other decision-makers working in the area of landslide risk reduction in the region. The ReSyLAB is a biannual event organized by the Adriatic-Balkan Network of the International Consortium on Landslides (ICL ABN). Being an important form of activities of this ICL regional network comprising of six ICL members from four countries, it was also a contribution of the International Consortium on Landslides (ICL) to the implementation of the Sendai Framework for Disaster Risk Reduction 2015–2030. This article reports on the main outcomes of the 3rd ReSyLAB Symposium. Altogether, 41 abstracts were published in the symposium book of abstracts, and the symposium proceedings with over 20 reviewed full papers are under preparation to be printed early in 2018. During the 3rd ReSyLAB, a five invited keynote lectures have been presented, and 28 oral presentations are given to the audience. An important part of the symposium was a Round Table entitled “Enhancing cooperation between landslide research community and end users.” On the last day of the symposium, over 30 experts participated in two post-symposium study tours in Slovenia. 相似文献
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ZHANG Letian YE Gaofeng JIN Sheng WEI Wenbo Martyn UNSWORTH Alan G. JONES JING Jianen DONG Hao XIE Chengliang Florian LE PAPE Jan VOZAR 《《地质学报》英文版》2015,89(1):90-104
Project INDEPTH (InterNational DEep Profiling of Tibet and the Himalaya) is an interdisciplinary program designed to develop a better understanding of deep structures and mechanics of the Tibetan Plateau. As a component of magnetotelluric (MT) work in the 4th phase of the project, MT data were collected along a profile that crosses the eastern segment of the Altyn Tagh fault on the northern margin of the plateau. Time series data processing used robust algorithms to give high quality responses. Dimensionality analysis showed that 2D approach is only valid for the northern section of the profile. Consequently, 2D inversions were only conducted for the northern section, and 3D inversions were conducted on MT data from the whole profile. From the 2D inversion model, the eastern segment of the Altyn Tagh fault only appears as a crustal structure, which suggests accommodation of strike slip motion along the Altyn Tagh fault by thrusting within the Qilian block. A large-scale off-profile conductor within the mid-lower crust of the Qilian block was revealed from the 3D inversion model, which is probably correlated with the North Qaidam thrust belt. Furthermore, the unconnected conductors from the 3D inversion model indicate that deformations in the study area are generally localized. 相似文献
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Organic carbon, total nitrogen, amino acids, sugars, and chlorophyll were determined in < 1 mm fractions of the samples collected
by successive large aperture time-series sediment traps (Honjo-Mark M) in northern South China Sea during September 1987 to
October 1988. The ratio of C/N and the relative abundance of amino acids and sugars show that organic matter in the settling
particles from northern South China Sea is derived mainly from marine plantkon (especially phytoplankton). The organic carbon
fluxes in our sediment traps are lower than those in other sediment traps. But the relative contents of Corg/total particulate matter are generally similar to those in the Panama Basin, Arabian Sea and Subarctic Pacific. It is suggested
that monsoon-caused changes of physical and chemical conditions in the upper euphotic layer would control the fluxes of organic
matter as well as its composition and transport in northern South China Sea.
This project was financially supported by both Sino-German Scientific Cooperation Program and National Natural Science Foundation
of China (No. 49070269, 49776297). 相似文献
10.
我国生存环境演变和北方干旱化趋势预测研究 (Ⅰ):主要研究成果 总被引：27，自引：2，他引：25
北方干旱化是我国最为严重的生存环境问题之一。20世纪90年代以来,与干旱化相联系的灾害造成的直接经济损失每年都在1 000亿元以上。它已经成为东北商品粮基地发展和华北能源基地建设以及实施“西部大开发”和振兴东北老工业基地战略的一个主要障碍。国家重点基础研究发展计划（973计划）“我国生存环境演变和北方干旱化趋势预测研究”（G1999043400）以全球变化科学的理论为指导,实施对水、土、气、生组成的生存环境系统的综合集成研究,从季风环境系统的整体变异的角度揭示干旱化形成的机理,并为干旱化发展趋势的预测、影响评估和对策建议提供科学依据。项目实施5年来,在完成国家目标需求和重大基础科学研究两个方面取得了显著成果;主要介绍了该项目的主要研究内容及代表性成果。 相似文献
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2017年7月21~23日,第6次全国青年工程地质学术研讨会在成都理工大学地质灾害防治与地质环境保护国家重点实验室顺利召开。本次研讨会是第三届工程地质专业委员会青年工作委员会成立以来组织召开的第二次围绕某一具体主题的学术会议,共有来自全国68家单位,包括高校、科研院所和工程单位的185位青年工作者参会。会议结合成都理工大学地质工程学科的研究特色,以“复杂条件下地质灾害形成机理与风险评价”为主题,举行了13场特邀专题报告、10场学术报告、3场圆桌讨论和1天的地震灾区野外考察,报告内容丰富多彩,涉及理论研究、试验研究与工程实践,深度与广度兼备。本次研讨会是国内工程地质及相关领域青年学者开展讨论和深入交流的一次盛会,对推进青年学者之间的学术交流与合作、加强多学科之间的交叉融合创新、促进“产、学、研”结合的成果转化、促进青年人才的成长起到了积极作用。 相似文献
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2016年5月6～7日,第5次全国青年工程地质学术研讨会在南京大学仙林校区顺利召开。本次研讨会是第三届工程地质专业委员会青年工作委员会成立以来组织召开的第一次围绕某一具体主题的学术会议,共有355位青年工作者参会。会议结合南京大学工程地质学科的研究特色,以“土体工程地质特性与结构”为主题,举行了20场特邀专题报告,报告内容丰富多彩,深度与广度兼备。本次研讨会是国内工程地质及相关领域青年学者开展讨论和深入交流的一次盛会,对推进青年学者之间的学术交流、加强与岩土工程等相关学科的学术纽带、锻炼青年学者的沟通组织能力、促进青年人才的成长起到了积极作用。 相似文献
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在东南亚一带的地质研究工作中,查阅了近10多年来地质文献上发表的有关印度尼西亚苏拉威西岛弧的岩石化学数据,查出符合埃达克岩条件的中、酸性岩岩石样品25个。样品分布于南苏拉威西、中苏拉威西、北西苏拉威西和北苏拉威西,构成巽他古大陆边缘新生代埃达克岩分布带。埃达克岩岩石类型分别属于岛弧拉斑系列、钙碱性系列和高钾钙碱性系列,以重稀土元素Y、Yb含量低和高Sr值为特征。微量元素蛛网图上有明显的Th, Sr峰。大离子亲石元素（LILE）和高场强元素(HFSE)相对富集。本区埃达克岩和埃达克质岩可划分为两种类型：第一种为岛弧拉斑/钙碱性系列,见于大洋岛弧和陆缘火山弧,其REE配分模式属于大洋岛弧型（O型）;另一种产于大陆板块内部,与陆-陆碰撞和后碰撞构造环境有成因联系,属于大陆型（C型）埃达克岩。 相似文献
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南水北调对北方干旱化趋势可能影响的初步分析 总被引：2，自引：0，他引：2
使用地表土壤水量平衡模式和大气能量平衡模式，对南水北调中线工程对华北地区的可能局地气候效应进行了虚拟模拟试验，得出了在不同调水方案和气候情景假定下华北地区可能出现的局地土壤水分、蒸发、温度和降水的变化。结果表明，不同调水量在不同时间、不同气候条件下的气候效应是有差别的，并与降水的季节变化有关。总体而言，在给定气候背景下调入水可以改变土壤水含量和径流，并使局地夏半年温度降低、冬半年温度有所升高；夏半年局地降水量和蒸发量有所增加，而冬半年变化不大。因此，在目前情况下南水北调中线工程的实施不仅可以减缓华北地区水资源紧缺的矛盾，而且有可能在一定程度上改善当地的局地干旱气候环境，进而有利于生态环境的良性循环和有序人类活动的可持续发展。 相似文献
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青藏高原隆升及其环境效应 总被引：25，自引：0，他引：25
“青藏高原形成演化及其环境资源效应”项目选择青藏高原为典型地区,特别注意高原与毗邻地区的联系,以从全球尺度探讨高原的各种过程,目标集中在大陆碰撞过程和高原隆升过程,以过程为主线贯通碰撞机制、环境变化和资源分布规律的研究;时间上着重新生代以来,在不同精细时间尺度上定量地描述碰撞和隆升的动态过程及环境变化。运用地球科学、生命科学、环境科学及各学科之间有机交叉、综合研究的方法,开展大陆碰撞动力学、环境变化、现代表生过程及各圈层相互作用等重大理论问题的研究,为青藏高原地区的资源开发和环境调控提供科学依据。按照统观全局、突出重点的原则,项目主要研究内容包括以下4个方面：大陆岩石圈碰撞过程及其成矿效应;高原隆升过程与东亚气候环境变化;青藏高原现代表生过程及相互作用机理;青藏高原区域系统相互作用的综合研究。在完成研究计划任务的基础上,项目取得如下的突出研究成果和创新性进展：印度大陆与欧亚大陆初始碰撞时限;青藏高原南北缘山盆岩石圈尺度的构造关系;青藏高原整合构造模型与成矿成藏评价;新生代高原北部重大的构造变形隆升事件序列;高原周边环境变化事件及高原隆升对亚洲季风发展变化的影响;高分辨率气候动态过程及变化趋势;高原主要生态系统碳过程对气候变化的响应;高原气候变化及冰冻圈变化与预测;高原土地覆被变化、恢复整治及管理。 相似文献
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国际油页岩开发技术与研究进展记第33届国际油页岩会议 总被引：1，自引：0，他引：1
笔者参加了美国科罗拉多矿业学院于2013年10月14-16日组织召开的第33届国际油页岩会议(33rd Oil Shale Symposium).为了让国内学者了解国际油页岩开发技术与研究的进展情况,笔者选取了会上重要报告,从油页岩资源的地质调查、油页岩化学分析技术、地面干馏技术、地下原位转化技术、国际油页岩项目动态和油页岩资源开发风险评估等方面介绍了国际油页岩研究的新进展.国际上对油页岩资源的开发与利用正向着快速、经济、原位和环保的方向发展,会议上提出的油页岩光谱分析、沸腾油原位转化工艺及其先导试验区的建设、油页岩新项目的设计与发展等相关技术与理念都非常值得我国油页岩行业学习与借鉴. 相似文献
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我国生存环境演变和北方干旱化趋势预测研究(Ⅱ):研究成果的创新性及项目实施效果 总被引：3，自引：0，他引：3
针对国家战略决策层面的重大需求：北方干旱化的趋势预测、影响评估和对策建议,项目紧密围绕国民经济和科技自身发展的重大科学问题,大力加强原始创新,开展多学科交叉研究,在更深的层面和更广泛的领域解决国家经济与社会发展中的重大科学问题,同时提高自主创新能力。实施5年来,不仅取得了一批有国际影响的创新性科研成果,而且为满足国家重大需求做出了实质性贡献。同时,项目在人才培养和基地建设等方面也取得了显著成绩,为相关研究的深入开展奠定了坚实基础。主要介绍了该项目研究成果的创新性及实施效果。 相似文献
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The Upper-Middle Proterozoic epimetamorphic rock series in northern Guangxi is a suite of volcanic-terrigenous clastic formations transforming in facies from mobile to stable, which is similar to Eparchean normal argillo-arenaceous sediments both in petrochemistry and in REE geochemistry.The Upper-Middle Proterozoic Suberathem in northern Guangxi is characterized by primordial enrichment of As and Sb, significant depletion in Sr and Hg, bimodal or polymodal distribution of Au and other ore-forming elements, and high variation coefficients and strong mobilities of Sn,Cu,Ni,Au,Ag,As and Sb.The trace element association is characterized by the predominance of siderophile and chalcophile elements occurring in the Middle Proterozoic and that of lithophile ele-ments occurring in the Upper Proterozoic .It is suggested that in northern Guangxi is developed a series of ore-bearing formations with the Sibao Group as the protogenous basement and the Danzhou Group and Lower Sinian series as the derivative cap strata. 相似文献