“青藏高原地质过程与环境灾害效应”学术研讨会将于北京举行

为了交流青藏高原地质调查与研究成果，活跃学术气氛，促进青藏高原大陆动力学与地质力学学科发展，根据中国地质学会学术活动相关计划，由中国地质学会地质力学专业委员会、第四纪地质专业委员会与中国地质调查局水文地质环境地质部、中国地震学会地震地质专业委员会发起，中国地质科学院地质力学研究所承办“青藏高原地质过程与环境灾害效应”学术讨论会将于2005年11月20～24日在北京召开。     

地壳异常压力学术研讨会会议纪要

地壳异常压力学术研讨会于2000年2月26日在中国地质科学院地质力学研究所召开,会议由中国地质学会地质力学专业委员会和构造物理化学专业学组发起组织。会议由吕古贤研究员主持。 地壳异常压力学术研讨会得到了国家科学技术部、国家自然科学基金委和国土资源部国际合作与发展司的支持。董     

“第三届全国矿田构造与地质找矿理论方法研讨会”会议纪要

2010年10月15—17日,＂第三届全国矿田构造与地质找矿理论方法研讨会＂在古都西安召开。会议由中国地质学会地质力学专业委员会和构造地质学与地球动力学专业委员会主办,长安大学和中国地质科学院地质力学研究所承办,中国科学院贵阳地球化学研究所等十几个单位协办。     

"大陆构造与资源环境"暨第七届全国地质力学学术研讨会在北京召开

值此中国地质科学院地质力学研究所建所50周年之际,“大陆构造与资源环境”暨第七届全国地质力学学术研讨会于2006年10月27—29日在北京金泰海博大酒店召开。本次会议的主办单位为中国地质科学院地质力学研究所、中国地质学会地质力学专业委员会、中国地质调查局、中国地质科学院、中国地质大学(北京)地质过程与矿产资源国家重点实验室、李四光地质科学奖办公室、中国地震局地壳应力研究所和中国地质科学院地壳变形地表过程重点开放实验室。承办单位为中国地质科学院地质力学研究所,赞助单位为北京城际高科信息技术有限公司。参加会议的有来…     

国际地质力学讨论会将在京召开

由中国地质学会地质力学专业委员会发起,今年9月5日—10日将在北京召开国际地质力学学术讨论会。目前已有美、奥、日、苏等十多个国家报名参加这一会议。4月28日在京召开了组织委员会会议。据悉,会议规模约100人,其中国外学者将占30—40％。会议内容为交流地质力学国际研究新进展,介绍我国地质力学研究的成就,加强     

大陆构造及大陆变形暨第六届全国地质力学学术讨论会简报

1999年10月25日至29日,中国地质科学院地质力学研究所、中国地质大学(北京)、北京大学地质系、国家地震局地壳应力研究所、五六二综合大队、中国地质学会地质力学专业委员会、第四纪地质与第四纪冰川专业委员会、古地磁专业委员会、北京地质学会以及地质力学开放研究实验室,在地质力学研究所联合召开了"大陆构造与大陆变形暨第六届地质力学学术讨论会".参加会议的代表共124人,分别来自国土资源部、国家地震局、中国科学院、教育部以及地矿、石油、冶金、核工业、有色金属不同产业部门的32个单位;有从事科研与教学工作的专家,也有长期从事野外地质调查与找矿勘探工作的学者.地质力学研究所名誉所长孙殿卿院士、陈庆宣院士,中国地质科学院张彦英院长、董树文副院长,中国地质学会艾永德副秘书长、浦庆余处长、陈丛喜处长、郝梓国处长及第六届李四光地质科学奖获得者、广东省地矿局原总工程师覃慕陶先生出席了本次学术讨论会.会议得到主办单位和全体代表的全力支持与合作,开得圆满成功.     

“青藏高原地质过程与环境灾害效应”学术讨论会会议纪要

“青藏高原地质过程与环境灾害效应”学术讨论会于2005年11月20—23日在北京召开。会议由中国地质学会地质力学专业委员会、第四纪地质专业委员会、中国地质调查局水文地质环境地质部、中国地震学会地震地质专业委员会共同发起,由中国地质学会地质力学专业委员会、中国地质学会第四纪地质专业委员会、中国地质调查局、中国地质科学院、中国地质大学北京)地质过程与矿产资源国家重点实验室、中国地震学会地震地质专业委员会、李四光地质科学奖办公室、中国地球物理学会大陆动力学专业委员会、中国地质学会古地磁专业委员会和中国地质科学院地…     

中国地质学会地质力学专业委员会第一次会议纪要

中国地质学会地质力学专业委员会于1980年4月在福建省漳州市召开了第一次会议。内容是:(1)建立健全组织,(2)讨论全国地质力学规划;(3)开展学术活动和今后工作安排。会议推选了主任委员,副主任委员、学术秘书,     

“第三届全国矿田构造与地质找矿理论方法研讨会”在西安召开

“第三届全国矿田构造与地质找矿理论方法研讨会”于2010年10月15-19日在西安长安大学召开。会议由中国地质学会地质力学专业委员会和构造地质学与地球动力学专业委员会主办,长安大学和中国地质科学院地质力学研究所承办。翟裕生、赵文津、张国伟、汤中立、李佩成院士等参加了大会,陈毓川、赵鹏大和孙传尧院士和张洪涛总工程师等发来贺信。来自全国各地的350多名地质矿产科技人员参加了会议。     

热烈庆贺孙殿卿院士九十华诞

本刊讯:今年3月10日,是著名地质学家、中国地质科学院地质力学研究所名誉所长孙殿卿院士九十诞辰.中国地质科学院、地质力学研究所、562综合所,中国地质大学,北京大学地质系,国家地震局地质研究所、地壳应力研究所,中国地质学会及所属相关专业委员会共15个单位,在京联合举行"孙殿卿院士从事地质工作七十周年暨九十华诞地质力学学术讨论会".此前,为了庆贺孙先生诞辰并弘扬先生业绩,地质力学研究所编辑出版了<孙殿卿著作选集>.这本选集是先生七十年来执着追求、长期实践、孜孜不息探索的科学结晶,展示先生作为李四光的学生、助手和继承人为地质力学学科的创立和发展作出的杰出贡献.此外,3月7日召开的"中国东部大地构造问题研讨会"也是为孙先生九十华诞举办的一项庆祝活动.     

Unity of the national and the international in the socio-cultural development of the peoples of the USSR

International unity is becoming ever stronger in this country owing to an increasing similarity in the development of the cultural environment. This comprises the provision of all the country's republics with a sufficient number of schools, theatres, and other institutions and cultural information media in accordance with the needs of the population. An important part is played by the rise in ‘the general educational level, as well as the level of professional qualifications and skills. Among all the Soviet nations and nationalities, this rise being more rapid among formerly backward peoples. Prominent among the factors of internationalization is the progressive development of the nationalities’ cultural resources, while professional culture is being increasingly brought within the reach of the masses.The implementation of the nationalities policy promotes the all-round development of all Soviet nations and nationalities, their drawing together, the upsurge of the individual capabilities of every Soviet citizen.     

Deviation of the major axis of the inertia ellipsoid of the Moon from the direction toward the Earth

It is known from observations that the center of mass of the Moon does not coincide with the geometric center of its figure, and the line connecting these two centers is not aligned with the direction toward the center of the Earth, instead deviating toward the Southeast. This stationary deviation of the axis of the inertia ellipsoid of the Moon to the South of the direction toward the Earth is analyzed. A system of five linear differential equations describing the physical libration of the Moon in latitude is considered, and these equations are derived using a new vector method taking into account perturbations from the Earth and partly from the Sun. The characteristic equation of this system is obtained, and all five oscillation frequencies are found. Special attention is paid to the fifth (zero) frequency, for which the solution of the latitude libration equations are stationary and represents a previously unknown additional motion of the rotational axis of theMoon in a cone with a small opening angle. In contrast to the astronomical precession of the Earth, the rotation of the angular-velocity vector is in the positive direction (counter-clockwise), with the period T ₃ = 27.32 days. On this basis, this phenomenon has been named “quasi-precession.” This quasi-precession leads to a stationary inclination of the major axis of the inertia ellipsoid of theMoon to the South (for an observer on Earth), making it possible to explain one component of the observed deviation of the center of mass of the Moon from the direction toward the Earth. The opening angle of the quasiprecession cone is approximately 0.834″.     

Global repeating events in the history of the Earth and the motion of the Sun in the Galaxy

Chronological analyses of correlations between certain global repeating events (mass extinctions of marine organisms, meteorite impacts, and flashes in the frequency of geomagnetic reversals) during the Phanerozoic Eon and the motion of the solar system in the Galaxy are presented for five rotationally symmetrical models for the regular Galactic gravitational field. Thirteen of sixteen mass-extinction events can be described by a repetition interval of 183±3 million years. This is in agreement with the anomalistic period (interval between two subsequent passages of the Sun through the apocenter of its Galactic orbit) in the model of Allen and Martos. The positions of the minima and maxima in Gaussian functions approximating the frequency distribution for geomagnetic reversals also agree with the times of passage of the Sun through the apocenter and pericenter, respectively, of its Galactic orbit in this model. The maximum in the distribution of the deviations of the dates of mass extinctions from the nearest dates of impacts of large, crater-forming bodies is close to zero, providing evidence that many such events are correlated. As a rule, extinctions follow impact events. The impacts of large bodies have occurred most often when the solar system passes through the Galactic plane, while mass extinctions occur more often at some distance from the Galactic plane (about 40 pc). As a rule, intervals of increases in the frequency of geomagnetic reversals coincide with dates of impacts of large bodies. At the same time, these intervals do not show a clear correlation with the dates of mass extinctions. The intensity of mass extinctions, like the energy released by impacts, is consistently higher in periods when the Sun is moving from the apocenter toward the pericenter of its orbit, than when it is moving from the pericenter toward the apocenter. Thus, there is evidence for a variety of relationships between repeating global events in the Phanerozoic and the motion of the Sun in the Galaxy. Long-period variations in the frequency of geomagnetic reversals are correlated with the orbital motion of the Sun, and increases in the frequency of geomagnetic reversals are correlated with impacts. Mass extinctions are correlated with the impacts of large bodies, whose motions may have been perturbed by clouds of interstellar material concentrated toward the Galactic plane and by the shock front associated with the Perseus spiral arm, through which the solar system passes. The velocity of the Sun relative to the spiral pattern is estimated.     

从榴辉岩与围岩的关系论苏鲁榴辉岩的形成与折返

位于华北和扬子两板块碰撞带中的苏鲁榴辉岩形成的温压条件不但是超高压，而且是高温。榴辉岩的PTt轨迹表明其为陆-陆磁撞俯冲带的产物。榴辉岩的区域性围岩花岗质片麻岩为新元古代同碰撞期花岗岩，榴辉岩及其他直接围岩皆呈包体存在于其中，并见新元古代花岗岩呈脉状侵入榴辉岩包体中。区域性围岩新元古代花岗岩的锆石中发现有柯石英、绿辉石等包裹体，表明新元古代花岗岩的组成物质也经受过超高压变质作用，且榴辉岩与围岩新元古代花岗岩的锆石U-Pb体系同位素年龄基本相同。但新元古代花岗岩所记录的变质作用和变形作用期次（或阶段）却少于榴辉岩。椐上述可得如下推断：超高压榴辉岩与新元古代花岗岩岩浆是同时在碰撞带底部（俯冲板块前部）形成的；榴辉岩的第一折返阶段是由新元古代花岗岩岩浆携带上升的，其第二折返阶段是和新元古代花岗岩一起由逆冲及区域性隆起而上升，遭受剥蚀。     

某高速公路下伏煤矿采空区稳定性分析

在论述某高速公路下伏砦脖煤矿采空区地质、采矿和工程地质特征的基础上, 进行了稳定性数值模拟分析, 定性与定量地分析与评价了该煤矿采空区的地表变形特征及稳定性。研究结果表明: 该煤矿采空区的变形尚未完成, 对拟建的高速公路将产生很大的危害, 必须采取相应的工程治理措施。      

摩擦桩基桩土间极限摩阻力取值问题探讨

通过对广珠东线高速公路横沥大桥的试桩及土体的工程地质条件分析,总结出影响摩擦桩基桩土间极限摩阻力取值的一般问题以及解决问题的方法和措施。     

The Importance of the Precipitation and the Susceptibility of the Slopes for the Triggering of Landslides Along the Roads

In order to characterise the influence of the heavyrains on the observed landslides during the 1996–1997hydrological cycle, rainfall records for the last 100years are analysed from 104 stations in easternAndalusia. Regarding the amounts of rain recordedbetween October 1996 and March 1997 in the 104stations studied, 31 presented new all-time records;15 presented values that were 80–100% of thepre-1995 record; 49 stations, 80–50%; and 9stations, < 50%. A map has been devised of thesusceptibility of the materials through which thesouth-eastern Andalusian road network crosses,together with an inventory of the damage caused byinstability phenomena on banks and cuttings of theroad network during the winter of 1996–1997. Therelationships between the rainfall during the studyperiod, the damage caused to the road network and thesusceptibility of the materials affected are analysed.The results indicate that there is a clearcorrespondence between the rainfall recorded and thesusceptibility of the materials with the inventorieddamage. It is concluded that the widespread seriousdamage caused in early 1997 to the roads andsurrounding areas in the Alpujarra region and thecoast of the Province of Granada was mainly caused bythe extraordinarily heavy rains. However, considerablyless damage was observed where the susceptibility ofthe terrain is low, thus highlighting the extremeusefulness of terrain-susceptibility maps for riskprevention and territorial planning.     

On the consistency of proposed models for the Pyrenees with the structure of the eastern parts of the belt

The structure of the eastern Pyrenees consists mainly of south-directed thrusts involving basement and cover rocks. An antiformal stack developed by the piling up of basement thrust sheets which outcrop in the Axial zone. These structures account for a thin-skinned thrust model rather than a vertical fault model in which the Axial zone would be essentially autochthonous, and the North-Pyrenean fault the axial plane of a fan thrust system. New data from the Eastern Pyrenees and the thin-skinned model suggest that(1) the structure east of the Pedraforca nappe is similar to that of the Central Pyrenees; (2) the cover rocks of the South-Pyrenean units and of the Axial zone-after restoration—built up a northwards-thickening prism consistent with the existence of a unique Pyrenean sedimentary basin during Mesozoic time; (3) the Axial zone is only a complex antiformal stack developed as a part of South-Pyrenean system related to the Paleogene thrusting-tectonics. The Axial zone palaeogeographic area had no special meaning during Mesozoic time.