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Systematics,Behavior and Living Environment of Shantungosaurus Giganteus(Dinosauria:Hadrosauridae)

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Acta Geologica Sinica(English Edition) 2011年第1期85卷 58-65页

作者： ji yannan WANG Xuri LIU Yongqing ji Qiang School of Earth Sciences and Resources China University ofGeosciences Beijing 100083 China Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China

On the basis of the taphonomy, osteological anatomy and ontogenetic variation, Zhuchengosaurus maximus Zhao et al., 2007 is considered to be synonymic with Shantungosaurus giganteus Hu, 1973 herein. This paper also deals with the life behavior of S. giganteus and the environment in which S. giganteus lived. S. giganteus is considered to be a terrestrial and gregarious herbivorous dinosaur and lived in hills and intervales in warm weather with plentiful rain and flourishing vegetation.

关键词： Shantungosaurus giganteus life behavior systematics Late Cretaceous Zhucheng Shandong Province

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陕西甘泉发现中侏罗世恐龙足迹群

地质通报 2024年第2期43卷 443-450页

作者：李兴文李益朝王卓胜孙淼王宝鹏王秦伟唐玉祝捷吴昊季燕南陕西省地质调查院陕西西安710068 中国地质大学(北京)地球科学与资源学院北京100083 中国地质环境监测院北京100081 国家自然博物馆北京100050

恐龙足迹化石是重建鄂尔多斯盆地侏罗纪恐龙动物群的重要途径。在野外地质调查和室内研究的基础上,对陕西甘泉中侏罗世直罗组发现的恐龙足迹群进行了简要记述。初步研究结果表明,甘泉恐龙足迹群具有较强的多样性,足迹类型包括了兽脚类... 详细信息

恐龙足迹化石是重建鄂尔多斯盆地侏罗纪恐龙动物群的重要途径。在野外地质调查和室内研究的基础上,对陕西甘泉中侏罗世直罗组发现的恐龙足迹群进行了简要记述。初步研究结果表明,甘泉恐龙足迹群具有较强的多样性,足迹类型包括了兽脚类、蜥脚类、可能的鸟脚类及龟鳖类足迹;兽脚类足迹呈现高度多样化,包括大型、中型和小型的三趾型足迹和大型的四趾型足迹;蜥脚类足迹可归入雷龙足迹;可能的鸟脚类足迹保存较差,难以归入到具体属种;可能的龟鳖类足迹为鄂尔多斯盆地侏罗系的首次记录。甘泉恐龙足迹群的发现,扩大了中国恐龙足迹的地理分布,对于重建鄂尔多斯盆地侏罗纪恐龙动物群及古生态、古地理、古环境等具有重要意义。

关键词：恐龙足迹直罗组中侏罗世甘泉陕西地质调查工程

Late Middle Pleistocene Harbin cranium represents a new Homo species

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The Innovation 2021年第3期2卷 3-4页

作者： Qiang ji Wensheng Wu yannan ji Qiang Li Xijun Ni Hebei GEO University Shijiazhuang 050031China China Geo-Environmental Monitoring Institute Beijing 100081China CAS Center for Excellence in Life and Paleoenvironment Chinese Academy of ScienceBeijing 100044China University of Chinese Academy of Sciences Beijing 100049China CAS Center for Excellence in Tibetan Plateau Earth Sciences Chinese Academy of ScienceBeijing 100104China

In eastern Asia,several Middle-Late Pleistocene human fossils,such as the Dali,jinniushan,Hualongdong,and Harbin crania,evidently resemble each other and are phylogenetically closer to H.sapiens than to H.neanderthalensis or other archaic humans.1 The Harbin cranium is the best preserved of this group.It shows a mosaic combination of plesiomorphic and apomorphic features.Here,we suggest that the Harbin skull should be recognized as a new species of Homo.

关键词： Middle closer ani

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梧州至广州铁路分流替代及建设方案研究

铁道运输与经济 2023年第9期45卷 21-27页

作者：姬燕男中铁第一勘察设计院集团有限公司轨道交通工程信息化国家重点实验室陕西西安710043 中铁第一勘察设计院集团有限公司陕西省铁道及地下交通工程重点实验室陕西西安710043

梧广铁路是川渝云贵大部分地区及桂中地区与粤港澳大湾区货运交流的主通道,也是川渝云贵大部分地区及桂中地区与粤港澳大湾区客运交流的区域性便捷普速客运通道,功能定位、分流替代方案、建设方案与主要技术标准相互耦合,需进行统筹研... 详细信息

梧广铁路是川渝云贵大部分地区及桂中地区与粤港澳大湾区货运交流的主通道,也是川渝云贵大部分地区及桂中地区与粤港澳大湾区客运交流的区域性便捷普速客运通道,功能定位、分流替代方案、建设方案与主要技术标准相互耦合,需进行统筹研究。结合路网规划,在研究年度路网分工和运量预测的基础上,分析得出利用南广铁路、“梧州—岑溪—罗定—春湾—永基—广州”铁路通道分流不可行;进而结合运量特点以及是否利用南广铁路,从工程投资、运输组织、运输质量及能力适应性等方面综合比选一次新建双线客货共线铁路和近单远双客货共线铁路两大建设方案;最终推荐近远期工程投资省、运输组织灵活、运输质量高、能力适应性优的一次新建双线客货共线铁路方案。研究思路和方法可为类似项目提供参考和借鉴。

关键词：梧广铁路功能定位客流预测分流替代建设方案

Geochemical provenancing and direct dating of the Harbin archaic human cranium

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The Innovation 2021年第3期2卷 62-69页

作者： Qingfeng Shao Junyi Ge Qiang ji jinhua Li Wensheng Wu yannan ji Tao Zhan Chi Zhang Qiang Li Rainer Grun Chris Stringer Xijun Ni Key Laboratory of Virtual Geographic Environment Ministry of EducationNanjing Normal UniversityNanjing 210023China CAS Center for Excellence in Life and Paleoenvironment Chinese Academy of ScienceBeijing 100044China University of Chinese Academy of Sciences Beijing 100049China Hebei GEO University Shijiazhuang 050031China Key Laboratory of Earth and Planetary Physics Innovation Academy for Earth ScienceChinese Academy of SciencesBeijing 100029China China Geo-Environmental Monitoring Institute Beijing 100081China The Second Hydrogeology and Engineering Geology Prospecting Institute of Heilongjiang Province Harbin 150030China Australian Research Centre for Human Evolution Griffith UniversityNathanQLDAustralia Research School of Earth Sciences The Australian National UniversityCanberraACTAustralia Centre for Human Evolution Research Department of Earth SciencesNatural History MuseumLondonUK CAS Center for Excellence in Tibetan Plateau Earth Sciences Chinese Academy of ScienceBeijing 100104China

As one of the most complete archaic human fossils,the Harbin cranium provides critical evidence for studying the diversification of the Homo genus and the origin of Homo sapiens.However,the unsystematic recovery of this cranium and a long and confused history since the discovery impede its accurate dating.Here,we carried out a series of geochemical analyses,including non-destructive X-ray fluorescence(XRF),rare earth elements(REE),and the Sr isotopes,to test the reported provenance of the Harbin cranium and get better stratigraphic constraints.The results show that the Harbin cranium has very similar XRF element distribution patterns,REE concentration patterns,and Sr isotopic compositions to those of the Middle Pleistocene-Holocene mammalian and human fossils recently recovered from the Harbin area.The sediments adhered in the nasal cavity of the Harbin cranium have a 87Sr/86Sr ratio of 0.711898,falling in the variation range measured in a core drilled near the Dongjiang Bridge,where the cranium was discovered during its reconstruction.The regional stratigraphic correlations indicate that the Harbin cranium was probably from the upper part of the Upper Huangshan Formation of the Harbin area,which has an optically stimulated luminescence dating constraint between 138 and 309 ka.U-series disequilibrium dating(n=10)directly on the cranium suggests that the cranium is older than 146 ka.The multiple lines of evidence from our experiments consistently support the theory that the Harbin cranium is from the late Middle Pleistocene of the Harbin area.Our study also shows that geochemical approaches can provide reliable evidence for locating and dating unsystematically recovered human fossils,and potentially can be applied to other human fossils without clear provenance and stratigraphy records.

关键词： human fossil provenancing non-destructive X-ray fluorescence rare earth elements strontium(Sr)isotopic composition uranium-series disequilibrium(U-series)dating

Massive cranium from Harbin in northeastern China establishes a new Middle Pleistocene human lineage

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The Innovation 2021年第3期2卷 43-50页

作者： Xijun Ni Qiang ji Wensheng Wu Qingfeng Shao yannan ji Chi Zhang Lei Liang Junyi Ge Zhen Guo jinhua Li Qiang Li Rainer Grun Chris Stringer Hebei GEO University Shijiazhuang 050031China CAS Center for Excellence in Life and Paleoenvironment Chinese Academy of ScienceBeijing 100044China CAS Center for Excellence in Tibetan Plateau Earth Sciences Chinese Academy of ScienceBeijing 100104China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Virtual Geographic Environment Ministry of EducationNanjing Normal UniversityNanjing 210023China China Geo-Environmental Monitoring Institute Beijing 100081China Key Laboratory of Earth and Planetary Physics Innovation Academy for Earth ScienceChinese Academy of SciencesBeijing 100029China Australian Research Centre for Human Evolution Griffith UniversityNathanQLDAustralia Research School of Earth Sciences The Australian National UniversityCanberraACTAustralia Centre for Human Evolution Research Department of Earth SciencesNatural History MuseumLondonUK

It has recently become clear that several human lineages coexisted with Homo sapiens during the late Middle and Late Pleistocene.Here,we report an archaic human fossil that throws new light on debates concerning the diversification of the Homo genus and the origin of H.sapiens.The fossil was recovered in Harbin city in northeastern China,with a minimum uranium-series age of 146 ka.This cranium is one of the best preserved Middle Pleistocene human fossils.Its massive size,with a large cranial capacity(1,420 mL)falling in the range of modern humans,is combined with a mosaic of primitive and derived characters.It differs from all the other named Homo species by presenting a combination of features,such as long and low cranial vault,a wide and low face,large and almost square orbits,gently curved but massively developed supraorbital torus,flat and low cheekbones with a shallow canine fossa,and a shallow palate with thick alveolar bone supporting very large molars.The excellent preservation of the Harbin cranium advances our understanding of several less-complete late Middle Pleistocene fossils from China,which have been interpreted as local evolutionary intermediates between the earlier species Homo erectus and later H.sapiens.Phylogenetic analyses based on parsimony criteria and Bayesian tip-dating suggest that the Harbin cranium and some other Middle Pleistocene human fossils from China,such as those from Dali and Xiahe,form a third East Asian lineage,which is a part of the sister group of the H.sapiens lineage.Our analyses of such morphologically distinctive archaic human lineages from Asia,Europe,and Africa suggest that the diversification of the Homo genus may have had a much deeper timescale than previously presumed.Sympatric isolation of small populations combined with stochastic long-distance dispersals is the best fitting biogeographical model for interpreting the evolution of the Homo genus.

关键词： human phylogeny human cranium fossil human dispersal human diversification

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呼和浩特至巴彦浩特开行旅游列车方案研究

铁道运输与经济 2023年第4期45卷 61-68页

作者：姬燕男胡必松中铁第一勘察设计院集团有限公司、轨道交通工程信息化国家重点实验室陕西西安710043 中铁第一勘察设计院集团有限公司、陕西省铁道及地下交通工程重点实验室陕西西安710043

旅游业是国民经济重要的战略性支柱产业,交通运输是旅游业发展的基础支撑和先决条件。近年来,我国综合交通运输体系不断完善,铁路运输与旅游融合发展已经成为现代旅游业转型发展的新趋势。利用既有呼准鄂铁路、东乌线、海拉线、包兰铁... 详细信息

旅游业是国民经济重要的战略性支柱产业,交通运输是旅游业发展的基础支撑和先决条件。近年来,我国综合交通运输体系不断完善,铁路运输与旅游融合发展已经成为现代旅游业转型发展的新趋势。利用既有呼准鄂铁路、东乌线、海拉线、包兰铁路等线路和规划的乌巴铁路开行特色旅游专列能够有效盘活旅游资源,充分发挥铁路运输能力。在对呼和浩特至巴彦浩特开行旅游列车需求分析的基础上,设计了旅游列车产品方案,进而对车辆升级、车站改造等配套工程进行了研究,表明研究年度铁路通道运输能力可满足开行旅游列车需求;财务测算结果显示项目全部投资税后财务内部收益率为10.6%,财务指标可行。研究结论有力地支撑了呼和浩特至巴彦浩特开行旅游列车。

关键词：旅游列车需求分析产品方案开行方案运输组织财务测算

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河北宣化土城子组恐龙足迹化石新发现

地质学报 2022年第7期96卷 2295-2311页

作者：鞠书彬王旭日董颖刘义川季燕南季强自然资源部地层与古生物重点实验室中国地质科学院地质研究所北京100037 中国地质大学北京100083 中国地质环境监测院北京100081 河北地质大学河北石家庄050031

本文报道了新近发现于河北宣化地区土城子组的恐龙足迹化石及沉积环境。为确定足迹化石的地质年代、土城子组的沉积环境及足迹化石属种,本文在对恐龙足迹化石层及其上、下地层进行剖面测制、沉积相划分和沉积环境分析的基础上,对化石层... 详细信息

本文报道了新近发现于河北宣化地区土城子组的恐龙足迹化石及沉积环境。为确定足迹化石的地质年代、土城子组的沉积环境及足迹化石属种,本文在对恐龙足迹化石层及其上、下地层进行剖面测制、沉积相划分和沉积环境分析的基础上,对化石层上覆凝灰岩层进行了LA-ICPMS锆石U-Pb测年,并对保存较好的足迹化石进行了测量和对比研究工作。研究结果表明,土城子组底部为冲积扇扇中沉积环境,足迹化石上、下地层则表现为河流相沉积环境,而足迹化石的赋存层位形成于滨湖相沉积环境,发育暴露构造并含有大量裸子植物碎屑化石。凝灰岩锆石U-Pb加权平均年龄为152.3±0.3 Ma(MSWD=0.00106),说明化石层位于土城子组一段,时代属于晚侏罗世钦莫利期(Kimmeridgian)中晚期。已发现的足迹化石以兽脚类三趾型足迹为主,包括跷脚龙足迹属(Grallator)、安琪龙足迹属(Anchisauripus)和实雷龙足迹属(Eubrontes),其次为一些疑似蜥脚类恐龙足迹,是华北北缘土城子组中群落丰富度最高的恐龙足迹点,其中一处或许为中国北方面积最大的恐龙足迹点。因此,我们认为宣化-下花园盆地土城子组一段以河流、湖泊相沉积环境为主,当时裸子植物繁茂,恐龙动物群庞大,偶尔存在火山喷发活动。新发现的宣化恐龙足迹不仅填补了宣化-下花园地区恐龙足迹化石的空白,也丰富了燕辽地区土城子组生物群的组合面貌,为土城子组内年代地层划分及陆相J/K界线的确定提供了新的证据。

关键词：土城子组恐龙足迹燕辽生物群沉积相晚侏罗世宣化-下花园盆地

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复合阻化剂抑制煤燃烧特性实验研究

矿业安全与环保 2023年第4期50卷 25-29页

作者：季燕男张雷林陈朝卫安徽理工大学安全科学与工程学院安徽淮南232001 安徽理工大学煤炭高效开采省部共建教育部重点实验室安徽淮南232001 郑煤集团裴沟煤矿筛选厂河南郑州452382

为了研究阻化剂对煤燃烧特性的影响,选取柠檬酸钠和聚磷酸铵进行复配,开展复合阻化剂优选的实验研究。采用锥形量热仪在45 kW/m~2的热辐射强度下,分析阻化煤样的燃烧行为和阻化效果。结果表明,在选取的实验比例中,当柠檬酸钠与聚磷酸铵... 详细信息

为了研究阻化剂对煤燃烧特性的影响,选取柠檬酸钠和聚磷酸铵进行复配,开展复合阻化剂优选的实验研究。采用锥形量热仪在45 kW/m~2的热辐射强度下,分析阻化煤样的燃烧行为和阻化效果。结果表明,在选取的实验比例中,当柠檬酸钠与聚磷酸铵的质量比为3∶1时,煤燃烧的热释放速率和总热释放量明显降低,烟气持续生成时间有效缩短,抑制了烟气的产生,体现出优良的阻燃抑烟效果;在煤炭的燃烧效率方面,提高了体系的火灾性能指数,降低了火灾增长指数,有效抑制了煤炭的燃烧,表现出复合阻化剂良好的协效作用。

关键词：煤燃烧特性复合阻化剂聚磷酸铵柠檬酸钠阻燃性能锥形量热仪