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1.
北京王府井东方广场旧石器晚期文化遗址的古环境背景   总被引:3,自引:0,他引:3  
北京王府井东方广场旧石器时代晚期人类活动遗址,是在北京平原的首次发现。依据对遗址区剖面中段(包含了上下两个文化层)沉积样品的沉积相特征以及粘土矿物、化学元素和孢粉等古环境指标的分析,探讨了2.6万年前后至1.4万年前后古环境的演变过程。古人类活动遗址所处地貌部位为古永定河冲积扇的河间冲积平原。古环境分析表明,文化层出现前后的这一段时期,一直以干冷气候为主,草本花粉占绝对优势,中后期温湿度有所增加,尤其上下文化层之间曾有一个短暂而明显的较为温湿的时期,出现了温带森林草原景观。在下文化层形成之后,由于气候转湿,河流水量增加,洪泛加剧,古人类活动范围有可能限于其他地势较高的地区,后期气候又有所变干,古人类活动才又涉足本区,因而形成上下两个文化层。晚更新世晚期干冷气候背景下,古人类活动遗址在北京、内蒙和黑龙江等地的发现表明,当时的古人类已具有能抵御干冷气候的能力。  相似文献   

2.
通过历史文献和最新考古资料,论述北平皋遗址为古邢邱遗址;邢邱为商王祖乙、周的封国邢国及战国时期的韩国的都城,创造了灿烂的城市文明,为中华邢姓的祖根.  相似文献   

3.
北京王府井东方广场遗址地层的沉积相与古地貌研究   总被引:1,自引:1,他引:0  
通过对遗址地层典型沉积剖面和遗址地区150余个地层资料的对比分析,揭示了北京王府井东方广场晚更新世晚期旧石器人类遗址地层的沉积特征与沉积相类型,从而恢复了距今2.2万年前人类在此生存活动的古地貌面。研究表明,古人类曾活动于古冲积扇面的砂岛上,这是末次冰期间较温暖的间冰阶时期,是一个水流相对稳定的时期。还讨论了由于受较强的不稳定水流影响,使该文化层内有3140年没有人类的活动,认为该遗址是一个人类活动的临时营地。并且,在同一时期,人类可能来自周围的古冲积扇高地,或来自平原西部较早形成的高地貌面。以上的研究为北京平原晚更新世晚期人-地环境的重建和进行史前人类历史的研究提供依据。  相似文献   

4.
著名的"宁乡青铜器之谜"困扰了几代考古专家和历史学家,至今仍未彻底解开。据宁乡炭河里西周古城遗址的考古发现,以及专家关于宁乡青铜器与炭河里遗址属同一文化内涵的研究成果,从研究炭河里古文化入手,通过对有关青铜器发现资料、历史文献记载,以及地名所蕴含的历史信息等进行疏通和推论,认为炭河里遗址的生活族群是三苗,且炭河里遗址是古三苗国在商末西周时期的都邑所在地。三苗国商代地域包含了赣西北、鄂东南、湘水下游和资水下游,而西周时期仅留有湘水下游和资水下游。最后通过对三苗地域内商周文化遗存等相关资料的分析,为"宁乡青铜器之谜"寻找了一种合理的解释:古三苗国创造了灿烂的青铜文明。  相似文献   

5.
笔者认为2011~2012年考古发现的神木石峁先夏时期古城遗址(与古埃及人建造金字塔处于同一时期,属于中国先夏史研究范畴)很可能就是黄帝都城昆仑.鉴于黄帝族是中华民族的核心成员,黄帝对中华文明有着巨大的贡献,发现黄帝都城昆仑遗址(神木石峁)意义特别重大,因此希望引起国家有关部门、当地政府和学术界的更多关注,组织开展专题考察论证,以便及时确定黄帝都城昆仑遗址保护方案和黄帝都城昆仑遗址博物馆设计方案,再现失落已久的华夏神话历史.  相似文献   

6.
先秦中山国乃北方少效民族白狄所建,曾经是一个“地方五百里”,兵车千乘,实力仅次于“七雄”的二等强国。但由于时代悬隔,先贤旧闻传之甚少,历史文献散佚严重,有关这一古国历史的诸多问题长期处于扑朔迷离的状态。河北平山县战国中山王墓葬群和灵寿故城遗址的发掘为揭示其真实面貌提供了宝贵资料,其中一号墓出土的方壶铭文“任”当释读为“士”,铭文印证了传世文献中有关中山国尊贤重士的记载,揭示出“士大夫”阶层当时不仅业已崛起于华夏诸国,而且开始活跃于夷狄之邦。  相似文献   

7.
2012年巫山蓝家寨遗址考古发掘中,获得距今2 400多年前春秋时期的喜马拉雅水麝鼩(Chimmarogale himalayicus)、小臭鼩(Suncus etruscus)、微尾鼩(Anourosorex squamipes)、白腹管鼻蝠(Murina leucogaster)等骨骼标本。这些骨骼标本的鉴定和研究反映出春秋时期三峡地区属于南亚热带气候,水土保持良好,有繁茂的森林环境;当时遗址古居民食物资源丰富,但人类居室及室内卫生条件等比较落后;古遗址人类居住点的室内环境比较阴暗、潮湿,并且有多种昆虫、食虫目动物等与人类伴栖。蓝家寨遗址食虫目(Insectivora)、翼手目(Chirortera)动物骨骼研究,为分析三峡地区春秋时期古环境、古居民生活与居住条件、三峡地区环境演变等提供了重要资料;同时,上述动物骨骼标本也是首次在中国新石器时代以后古文化遗址中被发现。该项工作为今后开展动物考古中的小哺乳动物研究,提供了可靠的标本观测数据,并且在鉴定标准及工作方法等方面为今后的工作提供了重要参考。  相似文献   

8.
2012年巫山蓝家寨遗址考古发掘中,获得距今2400多年前春秋时期的喜马拉雅水麝鼩(Chimmarogale himalayicus)、小臭鼩(Suncus etruscus)、微尾鼩(Anourosorex squamipes)、白腹管鼻蝠(Murina leucogaster)等骨骼标本。这些骨骼标本的鉴定和研究反映出春秋时期三峡地区属于南亚热带气候,水土保持良好,有繁茂的森林环境;当时遗址古居民食物资源丰富,但人类居室及室内卫生条件等比较落后;古遗址人类居住点的室内环境比较阴暗、潮湿,并且有多种昆虫、食虫目动物等与人类伴栖。蓝家寨遗址食虫目(Insectivora)、翼手目(Chirortera)动物骨骼研究,为分析三峡地区春秋时期古环境、古居民生活与居住条件、三峡地区环境演变等提供了重要资料;同时,上述动物骨骼标本也是首次在中国新石器时代以后古文化遗址中被发现。该项工作为今后开展动物考古中的小哺乳动物研究,提供了可靠的标本观测数据,并且在鉴定标准及工作方法等方面为今后的工作提供了重要参考。
  相似文献   

9.
《科技潮》1998,(4)
辽金城坦博物馆位于北京市丰台区右安门外玉林小区凉水河以北50m 处。1990年在该处建住宅楼时发现了金中都的南城坦水关遗址,被评为当年全国十大考古发现之一。1991年市政府决定在该处建造博物馆予以保护和展览。1995年被列为全国重点文物保护单位并对外开放。辽金城坦博物馆是地下遗址与历史陈列相结合的考古专业性博物馆,它以距今840余年前的金中都南城坦水关遗址为基础进行建筑的。博物馆外形象一座巍峨的古代城堡。建筑面积2500m~2,地上一层,地下一层。地下部分是目前我国体量最大的古代都城水关遗址,是研究我国古代建筑和水利设施的重要实例。  相似文献   

10.
浙江省余姚县罗甸公社东方红大队河姆渡村于1973年冬兴修翻水站时发现这一新石器时代遗址,经有关方面组织挖掘,在遗址共发现四个文化层,其中第四文化层年代最早,据碳十四同位素测定,距今6700~6900年。该层出土遗物有大量陶器、石器、骨器以及木构建筑遗址、农具、动植物遗存等,而以炭化稻谷(及壳)堆积成层平均厚数十厘米最为突出。1977年冬组织第二次发掘,收获同样丰富遗物及炭化稻谷,正在整理中。  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

14.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

15.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

16.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

17.
Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.  相似文献   

18.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

19.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

20.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

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