黑龙江边找恐龙

滔滔的黑龙江黝黑深邃,源远流长。它被视为“黑龙”的化身,曾在我省民间产生过许多神话故事。其实黑龙江里并没有龙,而黑龙江边一些沉积地层中,则确实埋藏着不少的恐龙化石。1978—1979年夏天,省博物馆和省地质区测一队等单位,在嘉荫县太平林场附近的黑龙江边,联合进行了一次恐龙发掘,获得了特大的化石丰收。现已装架成两具完整的鸭嘴龙化石骨架。其中一具高     

恐龙爱咸盐？

距今约两亿年前的侏罗纪．四川自贡地区曾是恐龙的天堂。白1915年首次在这里发现恐龙化石至今．已有130余处恐龙化石点被发现．分布面积达数千平方公里,发掘各类化石标本数以万计。这些化石中包括最原始的剑龙、保存最完整的小型鸟脚类恐龙、世界上首例蜥脚类恐龙尾锤及四川巨棘龙的皮肤印痕化石,还有中国首例蜥脚类杨氏马门溪龙皮肤印痕化石．绝对称得上是现实版的”侏罗纪公园”。     

刘家峡又发现恐龙化石足印

在刘家峡恐龙足印化石群产地的2号挖掘现场,又发现一类新的恐龙化石足印,揭露面积已由原来的740平方米扩展至2000平方米,清理出10类80组1600多个足印,而原来只有30组470多个。日前在刘家峡进行现场测量、制模研究工作的日本福井县立恐龙博物馆博士、中国科学院国际学术交流特邀顾问东洋一教授在2号点挖掘现场又发现了新的恐龙足印。据悉,此前东洋一教授代表日本有关方面,与甘肃省地堪局第三地质矿产勘查院古生物研究中心签定了《中国甘肃永靖盐锅峡恐龙足印化石材料合作研究协议书》,从而拉开了中日共同研究保护这一具有世界意义的重要化石遗迹的序幕。刘家峡白垩纪恐龙足印化石群地质遗迹,是1999年8月由甘肃省地质工作者在开展古生物地层调查中发现的。以李大庆博士为主的科研人员经过岩性和岩象分析,追踪挖掘,收获颇丰,从而引起世人关注,本刊也作了全面报道。去年年底,该处遗迹被列为国家地质公园。刘家峡又发现恐龙化石足印     

乌兰察布地区古生物

乌兰察布盟位于祖国的北疆,内蒙古中部,北与蒙古国毗邻,东接锡林郭勒盟,西连包头市、呼和浩特市,南与山西省接壤。近一百多年以来,乌兰察布地区较系统的新生代地层层序和丰富的古生物化石成为世界古生物学界所瞩目的中心之一。很多中外著名科学家及国际古生物学界考察团在此开展古生物化石考察与发掘,其中较有影响的有1872年德国李希霍芬,1893年俄国奥布鲁切夫,1921年至1930年美国纽约自然历史博物馆组织的“美国中亚考察团”,1922年瑞典安特生,1927年中国袁复礼、丁道衡与瑞典斯文赫定、步林等组织的“中瑞西北科学考察团”,1930年杨钟健、…     

我省组装出第一具恐龙化石骨架

最近,由我省自己组织队伍进行野外发掘、室内修复、组装的第一具恐龙化石骨架,在省博物馆正式组装完成,这标志着我省古生物化石研究工作又上了一个新台阶。在过去的几十年中,甘肃境内曾出土了各种类型的恐龙骨架化石达数十具,但是由于各种原因,这些由真化石标本组装的骨架一具也没有留在甘肃。此次装架的恐龙化石标本骨架,为禽龙类的恐龙,     

20世纪新疆恐龙化石发现之回顾

远在 1.4亿万年至 0 .6 5亿万年的侏罗纪、白垩纪时期 ,新疆准噶尔盆地地势比较平坦 ,气候温暖 ,雨水充沛 ,植物繁盛 ,水草丰美 ,是一个相当大的内陆湖。湖水岸边滋长着藻类、蕨类、苏铁、松柏等植物和软体动物 ,周围多种大小恐龙栖息繁衍 ,龟鳖类、鳄类出没 ,构成生机勃勃的恐龙世界。经过长时期的地壳运动的剧变 ,特别在中侏罗纪地层中 ,时有恐龙骨骼露于地表。在 2 0世纪内 ,地质人员在勘查中 ,先后发现有恐龙化石、恐龙蛋皮、碎片及伴生动物化石 ,分布于天山北麓准噶尔盆地周边的奇台、吉木萨尔、阜康、呼图壁、克拉玛依、富蕴、沙湾、…     

画笔下的龙、鸟时代

<正>上个世纪90年代以来,在辽河以西的土地上,相继发现了大量侏罗纪的恐龙和早期鸟类化石,震惊了当时整个古生物研究界。带有羽翼的恐龙化石的发掘,似乎为争议颇多的鸟类恐龙起源学说提供了佐证。拂去化石上的累累尘土,科学艺术家为我们还原了一个个曾经鲜活的生命,把我们带入到远古神秘的"龙、鸟时代"。     

四川盆地恐龙化石出露特点及地理分布

四川盆地,位于我国西南腹地,面积为二十万平方公里。在这里,中生代陆相地层分布广泛,发育完备,层序清楚,化石丰富,是我国同期陆相地层典型的沉积地区。近二十年来,重庆自然博物馆古生物学部在盆地中生代陆相地层里,采集到很多珍贵的古脊椎动物化石。如恐龙、上龙、鳄鱼、龟     

黄河古象出土记

1993年春,合水县板桥乡的马莲河畔的电站施工正在紧张地进行着。一天河西岸工地上挖出了两枚粗壮的“龙骨”,正在附近进行石油勘探的长庆油田技术人员闻讯赶来。经考察,是大象门齿化石。情况上报后,中国科学院古脊椎动物与古人类研究所和省、地、县博物(文化)馆迅疾组成了联合发掘队。经过35天的细致发掘工作,在棕黄色砂层与含砂粘土层中,发掘出了一具个体高大,又十分完整的大象化石。化石运往北京后,专家们进行了精心修复和装架,陈列在北京自然博物馆。复原后的大象高4     

我省博物馆特展在沈展出

由黑龙江省博物馆和沈阳故宫博物馆联合举办的《黑龙江平头鸭咀恐龙》、《黑龙江蝶类》、《馆藏历代货币》三个展览,于八月一日在沈阳故宫正式展出。恐龙属于中生代的爬行动物,起源于大约二亿多年前的三迭纪,灭绝于七千万年前的白恶纪。这次展出的黑龙江平头鸭咀恐龙,是在我省嘉阴县发掘的两具恐龙化石中较大的一具,身高6米,长12米。据有关专家鉴定,这具恐龙生存在距今七千万年前中     

Climate and energy security policies and measures: synergies and conflicts

Concerns about climate and energy security are leading to increased government intervention in the energy sector, in particular as they relate to the choice of energy supply options. While many of these options will improve both energy and climate security, many measures will benefit one while harming the other. This raises an important question for governments and energy planners: how can conflicts between climate and energy security be resolved? This article outlines some of the barriers and problems that may arise as governments and companies try to address climate and energy security concerns simultaneously in various energy supply areas. It concludes by arguing against choosing one objective over the other, and by outlining steps that can be taken to help resolve conflicts between the two agendas.     

我和我的兄弟姐妹

1938年．我出生在金沙江畔一个叫巴塘的小县城里。生在哪一天．至今不知道．因此．六十多年过去了．我从来也没有过过生日。     

Challenger and Chernobyl Lessons and Reflections

Abstract

It is argued that Psychological research on 'race' and 'ethnicity' issues presents a number of ethical problems. These relate to the sociopolitical impact of such research, particularly when it purports to find differences of an 'innate' character; to the use of naive subjects, particularly children, in research which is aimed at demonstrating their 'inferiority'; and, within the academic community itself, to the working relationships between researchers who believe in 'innate' 'race' differences and colleagues belonging to allegedly 'inferior' groups – this being particularly significant within a teaching environment. Although the 'race differences' question has a long and controversial history, ethical issues relating to the research process itself have received less focused attention. Moreover, replacement of the genetically obsolete concept of 'race' with the idea of 'ethnicity' does not solve the problem entirely, and the term 'ethnicity' is itself unsatisfactory in several respects.     

Power and Ethnicity History and Anthropology

This essay reflects on the relationship between anthropological and historical scholarship of ethnicity, picking up on themes explored by Andre Gingrich, by considering the epistemological and evidentiary limitations of social scientific and historical analysis and reconstruction. Beginning with the consideration of the pioneering transdisciplinary efforts of Robert Darnton and Clifford Geertz, it argues that many of the weaknesses ascribed to such efforts are actually part of the nature of social scientific investigation which, in the terms of Peter Winch, must take into account two sets of relationships: that of the relationship between the scientist and the phenomena that he or she observes and the symbolic system that he or she shares with other scientists, which can only be understood from the social context of common activity. How these two relationships challenge social scientific analysis of ethnicity are examined through a consideration of the difficulties of applying Anthony Smith's definition of an ethnie to either Fredrik Barth's classic essay on “Pathan Identity and its Maintenance” or Helmut Reimitz's study of Frankish identity. It concludes that neither anthropologists nor historians are simply describing societies as they are or as they were but rather attempt to describe societies as witnesses within them thought they should be, and we do this for our own society, not for those of the participants, past or present.     

Of Demons and Angels and Historical Humans: Some Events and Questions in Translation and Post-colonial Theory

In what follows, I attempt to show that a look at some curious examples of translations from European texts makes us think about issues in translation theory and post-colonial theory from a slightly different angle. The metaphor of translation can very well be employed for understanding the relation between European texts, and some texts and some social and political practices in India in the colonial period, and this in turn helps us look critically at what I shall call our fuzzy post-colonialism. I also argue that Walter Benjamin's metaphor of translation as the after-life of a work can be extended to posit two basic modes of after-life.     

后伊拉克时代与中国的内政外交--普遍主义与单边主义的冲突

"9·11"事件后,冷战后的国际政治格局发生了重大变化.其最大特征可以概括为以下两点:第一,确立了以唯一超级大国--美国为核心的以反恐为普遍主义的全球性安全阵线;第二,美国的爱国主义、民族主义戏剧性地高涨起来.就像当时有人强调因为全世界有60多个国家的人在世界贸易中心工作,所以对世贸中心的攻击就是对全世界的攻击那样,在美国国民中普遍存在着这样的观点:因为美国社会自身就是世界的缩影,所以星条旗也可被看作是超越一国国界的全人类的普遍象征.