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1不同时间尺度下的湖泊沉积物环境记录——以沉积物粒度为例显示文摘在湖泊沉积记录与古气候研究中,沉积物粒度的环境意义常常解释为:粗粒沉积物指示低水位时期的干旱气候,细粒沉积物指示高水位时期的湿润气候。本文通过对云南洱海和程海现代沉积物粒度的研究,揭示了沉积物粒度在不同时间尺度、不同时间分辨率的研究中具有不同的环境指示意义。在长时间尺度、低分辨率(百年、千年)研究中,粗粒沉积物指示湖泊收缩、湖水较浅的干旱气候期;细粒沉积物指示湖泊扩张、湖水较深的湿润气候期。在短时间尺度、高分辨率(年际、10a)研究中,粗粒沉积物指示降雨量较大的湿润年份;细粒沉积物指示降雨量相对较小的干旱年份。由于不同时间尺度研究中沉积分辨率、采样分辨率和定年精度的不同,湖泊沉积物记录所反映的环境信息在不同尺度下因此可能存在差异。在由以往的长时间尺度、低分辨率研究转向短时间尺度、高分辨率研究的过程中,不能简单套用各种指标在长尺度研究中的环境指示意义,必须结合研究的时间尺度和分辨率,综合分析各种因素对环境记录的影响方式和程度,才能得出可靠结论。陈敬安 万国江 张峰 David Dian Zhang 黄荣贵 2003中国科学(D辑)2003,33,6:206
2Morinda citrifolia (Noni): A literature review and recent advances in Noni research^1显示文摘Morinda citrifolia L(Noni) has been used in folk remedies by Polynesians for over 2000 years,and is reported to have a broad range of therapeutic effects,including antibacterial,antiviral,antifungal,antitumor,antihelmin,analgesic,hypotensive,anti-inflammatory,and immune enhancing effects.In order to reveal the nutritional and medicinal value of the Noni plant,and to summarize scientific evidence that supports the Polynesians' claim,a literature review and recent advances in Noni research is given below.Brett J WEST CJarakae JENSEN Diane NOWICKI SU Chen Afa K PALU Gary ANDERSON 2002Acta Pharmacologica Sinica2002,23,12:80
3胰腺导管腺癌放射学报告模板:腹部放射协会和美国胰腺协会的共识声明显示文摘胰腺导管腺癌(PDA)是一种具有侵袭性、死亡率高的恶性肿瘤。在肿瘤分期时,通过影像学分析,合理判定肿瘤的范围,是患者治疗措施中最重要的步骤之一。考虑到不同医生在专业知识水平和疾病严重程度的判定有所差异,以及在放射学检查时经常缺乏相关影像学表现的完整报道,有必要采用标准化的影像学报告模板以及大家一致接受和认可的胰腺实性肿瘤术语。在腹部放射协会和美国胰腺协会的共同资助下,胰腺导管腺癌(PDA)多机构专家组(包括放射学专家、胃肠病学和肝胆胰外科学专家)共同发起了一份描述标准化报告模板的共识声明。采用这种标准化的影像学报告模板将能改进PDA患者的治疗决策过程,并可通过提供一份完整、相关、精准的疾病分期报告以优化治疗方案。通过对可行手术切除的患者恰当、一致的分期,标准化报告模板有助于促进临床和科研实验设计,从而实现在不同机构之间的实验结果的比较。Mahmoud M.Al-Hawary Isaac R.Francis Suresh T.Chari Elliot K.Fishman David M.Hough David S.Lu Michael Macari Alec J.Megibow Frank H.Miller Dushyant V.Sahani Diane M.Simeone 黄翔 孙灿辉 2014影像诊断与介入放射学2014,23,4:52
4Effect of hepatitis C virus infection on expression of several cancer-associated gene products in hepatocellular carcinoma显示文摘NTRODUCTIONOurpreviousstudiesbyseroepidemiological,molecularepidemiologicalandimmunopathologicalmethodshaverevealedthathepa...YANG Jian Min, WANG Rong Quan, BU Bao Guo, ZHOU Zi Cheng, FANG Dian Chun and LUO Yuan Hui 1999World Journal of Gastroenterology1999,5,1:42
5Labor Onset, Oxytocin Use, and Epidural Anesthesia for Vaginal Birth after Cesarean Section and Associated Effects on Maternal and Neonatal Outcomes in a Tertiary Hospital in China: A Retrospective Study显示文摘Shao-Wen Wu He Dian Wei-Yuan Zhang 2018Chinese Medical Journal2018,,8:45
6Expression and significance of proapoptotic gene Bax in gastric carcinoma显示文摘INTRODUCTIONRecentinvestigationshavedemonstratedthatapoptosisplaysasignificantroleinthepathogenesisoftumors[1,2].Emphasishas...LIU Hai Feng, LIU Wei Wen, FANG Dian Chun and MEN Rong Pu 1999World Journal of Gastroenterology1999,5,1:32
7萨拉乌苏河流域150 ka BP以来的粒度旋回显示文摘萨拉乌苏河流域米浪沟湾地层剖面 1 50 ka BP以来古流动砂丘砂与河湖相和古土壤在粒度上具有多次显著的粗细韵律交替变化 ,粒度参数 - Mz、σ、Sk、Kg和 SC/D亦随之响应为多波动峰谷交替的态势。同时 ,粒度特征值 - Φ5、Φ1 6、Φ2 5、Φ50、Φ75、Φ84、Φ95相应地表现为非常有节奏地跳动。据此 ,将米浪沟湾剖面划分为 2 7个粒度粗细沉积旋回 ,并认为其是 1 50ka BP以来在东亚冬夏古代季风交替影响下沙漠演变的一个颇为完整的气候张宇红 李保生 靳鹤龄 David Dian ZHANG 阎满存 祝一志 李后信 姚春霞 罗开利 2001地理学报2001,56,3:29
8Environmental records of lacustrine sediments in different time scales:Sediment grain size as an example显示文摘Sediment grain size is a conventional proxy of climatic changes. Larger sediment grain size is often interpreted to indicate dry climate during lower lake level while smaller sedi- ment grain size implies wet climate during higher lake level. Through detailed study on sediment grain sizes in Lake Erhai and Lake Chenghai, this paper reveals the different indication signifi- cances of sediment grain sizes in different time scales, different resolution investigations. For long time-scale and low resolution (102a or 103a) studies, larger sediment grain size indicates lower lake level, smaller lake area and drier climate while smaller sediment grain size indicates higher lake level, larger lake area and wetter climate. For short time-scale and high resolution (a or 10a) studies, larger sediment grain size reflects more rainfall and wetter climate while smaller sediment grain size reflects less rainfall and drier climate. Environmental information revealed by lacustrine sediment records is often different in different time scales because of the variance of sedimentation resolution, sampling resolution and dating precision. Therefore, paleoclimate im- plications of environmental proxies in long time-scale and low resolution investigations could not be mechanically applied to short time-scale and high resolution studies. Only after synthetically analyzing the influence manner and extent of all factors on the sediment records in different time scales, can credible conclusions be obtained.CHEN Jing’an1, WAN Guojiang1, David Dian Zhang2, ZHANG Feng1 & HUANG Ronggui1 1. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China 2. Department of Geography and Geology, University of Hong Kong, Pokfulam Road, Hong Kong, China 2004Science China Earth Sciences2004,47,10:27
9中国季风沙区晚更新世以来环境及其变化显示文摘本文以对毛乌素沙漠萨拉乌苏河流域米浪沟湾地层剖面晚更新世—全新世砂丘与河湖相、古土壤互为叠覆的高分辨率的气候地层记录的认识出发,同时基于对中国北方现代冬春季节风沙、尘霾活动发生的区域性气候—地质过程的理解,将今释古,反演了该时期中国季风区沙漠沙地曾经历的27个沙漠扩缩的周期性变化,并认为该剖面风砂沉积是过去地质时代季风沙区乃至整个中国沙区类似由现代这种冬春季西伯利亚—蒙古反气旋风系即冬季风向南伸展导致的若干风沙风尘动态过程的结果,而河湖相和古土壤的发育则主要与季风沙区受惠于东亚夏季风的影响有关。李保生 吴正 David Dian ZHANG 范安康 阎满存 孙武 靳鹤龄 董光荣 祝一志 高全洲 张甲申 2001地质学报2001,75,1:26
102018加拿大心境障碍与焦虑障碍治疗协作组/国际双相障碍学会指南:双相障碍的管理显示文摘加拿大心境障碍与焦虑障碍治疗协作组(Canadian Network for Mood and Anxiety Treatments,CANMAT)曾于2005年发布了第1版双相障碍管理指南,并分别于2007、2009和2013年对该指南进行了更新,其中最近的2次更新是与国际双相障碍学会(International Society for Bipolar Disorders,ISBD)合作完成。2018版CANMAT/ISBD双相障碍治疗指南(以下简称指南)反映了自2005年首版指南发表以来本领域取得的重大进展,包括疾病诊断与疾病管理的更新以及药物治疗与心理治疗的近期研究进展。这些前沿进展中综合考虑了循证证据的级别,并基于治疗疗效、临床实践经验、安全性、耐受性和药物导致的转相风险等,对一线、二线及三线治疗方案进行了简明而清晰的推荐。本指南中新增内容涵盖了双相Ⅰ型障碍(BD-Ⅰ)的躁狂发作急性期、抑郁发作急性期和双相障碍维持期的一线及二线治疗推荐等级划分。这种对治疗推荐等级的划分综合考虑了治疗方法对双相障碍不同时相的影响,将进一步帮助临床医生做出基于循证证据的治疗决策。锂盐、喹硫平、双丙戊酸盐、阿塞那平、阿立哌唑、帕利哌酮、利培酮和卡利拉嗪单药或联合使用被推荐为躁狂发作急性期的一线治疗选择。BD-Ⅰ抑郁期的一线治疗选择包括喹硫平、鲁拉西酮、锂盐、拉莫三嗪单药,鲁拉西酮联合锂盐或双丙戊酸盐或拉莫三嗪辅助治疗。尽管急性期治疗有效的药物通常应继续用于BD-Ⅰ的维持期治疗,但也存在一些特殊情况(例如抗抑郁药)。现有数据表明,锂盐、喹硫平、双丙戊酸盐、拉莫三嗪、阿塞那平和阿立哌唑单药或联合治疗应被视为维持治疗的初始或更换治疗方案时的一线选择。除了探讨BD-Ⅰ的相关问题外,本指南中还对双相Ⅱ型障碍(BD-Ⅱ)的临床管理进行了系统回顾并给予治疗推荐,同时针对特殊人群也有相关推荐,如处于各个生殖周期的女性、儿童、青少年和老年人。此外,本指南中还讨论了特定精神疾病及共病(如物质滥用、焦虑障碍和代谢性疾病)的影响。最后,本指南中概述了安全性和药物监测的相关问题。CANMAT/ISBD工作组希望本指南能够成为全球临床医生的实用工具。Lakshmi N Yatham Sidney H Kennedy Sagar V Parikh Ayal Sehaffer David J Bond Benicio N Frey Verinder Sharma Benjamin I Goldstein Soham Rej Serge Beaulieu Martin Alda Glenda MaeQueen Roumen V Milev Arun Ravindran Claire O'Donovan Diane Mclntosh Raymond W Lam Gustavo Vazquez Flavio Kapczinski Roger S Melntyre Jan Kozicky Shigenobu Kanba Beny Lafer Trisha Suppes Joseph R Calabrese Eduard Vieta Gin Malhi Robert M Post Michael Berk 胡晨(译) 王刚(译) 2019中华精神科杂志2019,52,1:25
11Expenditure and financial burden for the diagnosis and treatment of colorectal cancer in China:a hospital.based,multicenter,cross-sectional survey显示文摘Background: The increasing prevalence of colorectal cancer(CRC) in China and the paucity of information about relevant expenditure highlight the necessity of better understanding the financial burden and effect of CRC diagnosis and treatment. We performed a survey to quantify the direct medical and non-medical expenditure as well as the resulting financial burden of CRC patients in China.Methods: We conducted a multicenter, cross-sectional survey in 37 tertiary hospitals in 13 provinces across China between 2012 and 2014. Each enrolled patient was interviewed using a structured questionnaire. All expenditure data were inflated to the 2014 Chinese Yuan(CNY; 1 CNY = 0.163 USD). We quantified the overall expenditure and financial burden and by subgroup(hospital type, age at diagnosis, sex, education, occupation, insurance type, household income, clinical stage, pathologic type, and therapeutic regimen). We then performed generalized linear modeling to determine the factors associated with overall expenditure.Results: A total of 2356 patients with a mean age of 57.4 years were included, 57.1 % of whom were men; 13.9% of patients had stage I cancer; and the average previous-year household income was 54,525 CNY.The overall average direct expenditure per patient was estimated to be 67,408 CNY, and the expenditures for stage Ⅰ, Ⅱ, Ⅲ, and Ⅳ disease were 56,099 CNY, 59,952 CNY, 67,292 CNY, and 82,729 CNY, respectively. Non-medical expenditure accounted for 8.3%of the overall expenditure. The 1-year out-of-pocket expenditure of a newly diagnosed patient was 32,649 CNY, which accounted for 59.9% of their previous-year household income and caused 75.0% of families to suffer an unmanageable financial burden. Univariate analysis showed that financial burden and overall expenditure differed in almost all subgroups(P < 0.05), except for sex. Multivariate analysis showed that patients who were treated in specialized hospitals and those who were diagnosed with adenocarcinoma or diagnosed at a later stage were likely to spend more,whereas those with a lower household income and those who underwent surgery spent less(all P < 0.05).Conclusions: For patients in China, direct expenditure for the diagnosis and treatment of CRC seemed catastrophic,and non-medical expenditure was non-ignorable. The financial burden varied among subgroups, especially among patients with different clinical stages of disease, which suggests that, in China, CRC screening might be cost-effective.Hui-Yao Huang Ju-Fang Shi Lan-Wei Guo Ya-Na Bai Xian-Zhen Liao Guo-iangLiu A-Yan Mao Jian-Song Ren Xiao-Jie Sun Xin-Yu Zhu Le Wang Bing-Bing Song Ling-Bin Du Lin Zhu Ji-Yong Gong Qi Zhou Yu-Qin Liu Rong Cao Ling Mai Li Lan Xiao-Hua Sun Ying Ren Jin-Yi Zhou Yuan-Zheng Wang Xiao Qi Pei-An Lou Dian Shi Ni Li Kai Zhang Jie He Min Dai 2017Chinese Journal of Cancer2017,36,8:25
12萨拉乌苏河流域末次间冰期全球变化区域响应的主元素记录显示文摘萨拉乌苏河流域米浪沟湾剖面末次间冰期层系记录了8 5个风成的古砂丘砂与河湖相或/和古土壤构成的沉积旋回。通过对该层系主元素含量分布规律的分析,认为所述沉积旋回主要是由干湿寒暖气候旋回波动所致。研究亦表明,末次间冰期层系60LS—82S可进一步划分为5个层段,它们在时间和气候的主要阶段上与氧同位素5阶段中之5a、5b、5c、5d、5e诸亚段相近。不仅如此,若干反映冷干气候的风成砂丘砂堆积层位与末次间冰期GRIP冰芯δ18O及西太平洋暖池planktonicδ18O记录的冷凉事件,特别是与黄土高原记录的9次粉尘事件在时间上具有很好的对应关系。吕玉晓 李保生 靳鹤龄 David Dian ZHANG 余雪飞 2004中国沙漠2004,24,2:25
13Progress of Air Pollution Control in China and Its Challenges and Opportunities in the Ecological Civilization Era显示文摘China’s past economic growth has substantially relied on fossil fuels,causing serious air pollution issues.Decoupling economic growth and pollution has become the focus in developing ecological civilization in China.We have analyzed the three-decade progress of air pollution controls in China,highlighting a strategic transformation from emission control toward air quality management.Emission control of sulfur dioxide(SO2)resolved the deteriorating acid rain issue in China in 2007.Since 2013,control actions on multiple precursors and sectors have targeted the reduction of the concentration of fine particulate matter(PM2.5),marking a transition to an air-quality-oriented strategy.Increasing ozone(O3)pollution further requires O3 and PM2.5 integrated control strategies with an emphasis on their complex photochemical interactions.Fundamental improvement of air quality in China,as a key indicator for the success of ecological civilization construction,demands the deep de-carbonization of China’s energy system as well as more synergistic pathways to address air pollution and global climate change simultaneously.Xi Lu Shaojun Zhang Jia Xing Yunjie Wang Wenhui Chen Dian Ding Ye Wu Shuxiao Wang Lei Duan Jiming Hao 2020Engineering2020,6,12:24
14Expression of bcl-2 protein in gastric carcinoma and its significance显示文摘Expressionofbcl2proteiningastriccarcinomaanditssignificanceLIUHaiFeng,LIUWeiWen,FANGDianChunandMENRongPuSubjectheadings...LIU Hai Feng, LIU Wei Wen, FANG Dian Chun and MEN Rong Pu 1998World Journal of Gastroenterology1998,4,3:23
15Ion adsorption components in liquid/solid systems显示文摘Experiments on Zn2+ and Cd2+ adsorptions on vermiculite in aqueous solutions were conducted to investigate the widely observed adsorbent concentration effect on the traditionally defined adsorption isotherm in the adsorbate range 25—500 mg/L and adsorbent range 10—150 g/L. The results showed that the equilibrium ion adsorption density did not correspond to a unique equilibrium ion concentration in liquid phase. Three adsorbate/adsorbent ratios, the equilibrium adsorption density, the ratio of equilibrium adsorbate concentration in liquid phase to adsorbent concentration, and the ratio of initial adsorbate concentration to adsorbent concentration, were found to be related with unique values in the tested range. Based on the assumption that the equilibrium state of a liquid/solid adsorption system is determined by four mutually related components: adsorbate in liquid phase, adsorbate in solid phase, uncovered adsorption site and covered adsorption site, and that the equilibrium chemical potentials of these components should be equalized, a new model was presented for describing ion adsorption isotherm in liquid/solid systems. The proposed model fit well the experimental data obtained from the examined samples.WU Xiao-fu HU Yue-li ZHAO Fang HUANG Zhong-zi LEI Dian 2006Journal of Environmental Sciences2006,18,6:21
16Distribution of gamasid mites on small mammals in Yunnan Province, China显示文摘小哺乳动物的身体表面上的 gamasid 螨的调查从 1990 ~ 2004 在中国的云南省被执行。小哺乳动物主人是代表五个地理分区, HengduanMountains 的也就是中间的分区, Hengduan 山的南部的分区,云南的东方高原分区,云南的 WesternPlateau 分区和云南的南部的多山的分区的捕获的 from25 县。捕获了 10803 个小哺乳动物宿主在四目(Rodentia,食虫目, Scandentia 和兔类) 属于九个家庭, 29 个类和 52 种类。68 571 gamasid 螨的一个总数从捕获的小哺乳动物主人的身体表面被收集,所有 gamasid 螨被识别到 10 个家庭, 33 个类和 112 种类。这篇论文列出所有螨种,和他们的分类位置(类和家庭) 和他们的相应宿主。更多螨种类比在另外的地理分区在 Hengduan 山的 MiddleSubregion 被发现。在 Hengduan 山的中间的分区的螨和小哺乳动物的彻底的个人在五个地理分区也是最丰富的。三主导的螨种和三主导的小哺乳动物 hostsweredetermined 作为主导。在云南省的调查区域的种类。主导的主人是 Rattus flavipectus (它说明34.85%彻底的个人), Apodemuschevrieri (13.43%)和 Rattus norvegicus (10.40%)当时主导的 gamasid 螨种类 areLaelaps nuttalli ( Hirst , 1915 )(27.84%), Laelaps echidninus ( Berlese , 1887 )(18.38%)并且 Laelapsguizhouensis ( Gu et 王, 1981 )(14.79%)。结果在不同分区在云南省和不平的分发特征显示出 gamasidmites 的高种类差异。LI-PU LUO XIAN-GUO GUO TI-JUN QIAN DIAN WU XING-YUANMEN WEN-GE DONG 2007Insect Science2007,14,1:20
17Tissue clearing of both hard and soft tissue organs with the PEGASOS method显示文摘织物空地技术由转织物在 3 尺寸(3-D ) 启用不透明的机关和纸巾的可视化透明。当前的组织空地方法被能与每个单个协议被清除的纸巾的有限类型限制,它不可避免地导致了存在在整个身体或身体部分成像以内盲点。包括骨头和牙齿的难纸巾仍然是要清除的最困难的机关。另外,内长的荧光的损失为基于溶剂的空地方法仍然是一颗主要担心。这里,我们发展了聚乙烯乙二醇(木钉) 联系了溶剂系统(PEGASOS ) ,它将近显示了纸巾的所有类型透明、保存的内长的荧光。骨头和牙齿能被转在变清以后将近不可见。PEGASOS 方法转了透明的整个成年老鼠身体,我们对一个成年老鼠头骨头,牙齿,大脑,肌肉,和其它填写了的图象有能力没有盲目区域的纸巾。难织物透明性使我们能重建在 3-D 的未经触动的上颚,牙齿,腿节,或膝关节。另外,我们在长距离上在亚 cellular 分辨率并且到踪迹个人神经原和轴突管理了未经触动的鼠标大脑到图象。我们也通过 vertebrae 直接设想了背面的根中心。最后,我们在长骨头的髓空间以内在 3-D 揭示了神经网络的分发模式。这些结果建议 PEGASOS 方法是为一般生物医学的研究的一个有用工具。Dian Jing Shiwen Zhang Wenjing Luo Xiaofei Gao Yi Men Chi Ma Xiaohua Liu Yating Yi Abhijit Bugde Bo O. Zhou Zhihe Zhao Quan Yuan Jian Q. Feng Liang Gao Woo-Ping Ge Hu Zhao 2018Cell Research2018,28,8:18
18岭南粤东北地区晚第四纪红土与棕黄色沉积物的古气候转变记录显示文摘通过对南岭以南的粤东北地区河流沿岸晚第四纪地质调查,并主要以对临江地层剖面为代表的红土与棕黄色粉砂的时代、主氧化物——SiO2,Al2O3,TOFE(Fe2O3+FeO)和CIA值反映的古环境的研究结果认为,该地主要分布于一级阶地的红土属末次间冰期(距今132~73ka)湿热的类似于现代热带北缘季风气候环境背景下形成的网纹红土;上覆棕黄色粉砂层主要是末次冰期(距今73~11ka)暖温带季风气候环境的堆积,其中的风成砂——LJ3层位代表了其时气候恶化的极端时期.这一看法与前人对岭南及其以东的大量的古生物指示的古生态的研究结果颇为吻合.由此表明,粤东北甚至整个岭南地区从末次间冰期到末次冰期、从红土为嗣后的棕黄色粉砂沉积替代(甚至从大熊猫-剑齿象动物群演替为澎湖动物群),生物气候带确实经历了一场大规模的急剧的古地理环境变迁,这一研究可为全球变化影响下的中国低纬区域万年尺度的环境响应提供一个重要的地质学实证。李保生 温小浩 David Dian Zhang 邱世藩 董玉祥 李志文 杜恕环 欧先交 李后信 牛东风 杨艺 2008科学通报2008,53,22:18
19Phases of Environmental Evolution Indicated by Primary Chemical Elements and Paleontological Records in the Upper Pleistocene-Holocene Series for the Salawusu River Valley,China显示文摘岩性学的研究,沉积褪色,分发整齐 ofSiO_2 和 Al_2O_3 满足并且 Al_2O_3/SiO_2 比率允许我们划分 Milanggouwan 节在中国的 Salawusu 河山谷代表进六个片断的上面的 Pleistocene-HoloceneSeries : MGS1, MGS2, MGS3, MGS4, MGS5 和 MGS6。边界为 MGS1 ( Dishaogouwan 和 DagouwanFormations )变老, MGS2 (上面的 Chengchuan 形成), MGS3 (中间的 Chengchuan 形成), MGS4 (更低的 Chengchuan 形成),分别地, MGS5 ( Salawusu 形成的大多数阶层)和 MGS6 ( Salawusu 形成的底部和 Lishi 形成的顶)从深海沉积或大陆冰川 MIS1 , MIS2 , MIS3 , MIS4 , MIS5 和 MIS6 对应于那些。MGS5 能被细分进五子段(MGS5a, MGS5b, MGS5c, MGS5d 和 MGS5e ) ,这些子段的边界年龄分别地 MIS5a, MIS5b, MIS5c, MIS5d 和 MIS5e 对应于那些。古环境和苍白的生态学由主要化学元素,石块脊椎动物,软体动物和花粉谷物显示了的 Basedon ,我们假设 MGS5 的子段匹配的那 MGS1 , MGS2 , MGS3 , MGS4 , MGS5 和 MGS6and 为在深海沉积和大陆冰川的氧同位素的相应阶段,并且潜水艇以气候的人物, MIS5 上演进一步向现象解释那决定了晚第四级的阶层的形成和 Salawusu 的古生物学这些现象在世界气候联系到变化(并且特别地在东方亚洲季风) 在冰川、间冰期的句号期间。LI Baosheng WEN Xiaohao QIU Shifan David Dian ZHANG DU Shuhuan CHEN Deniu OU Xianjiao NIU Dongfeng 2007Acta Geologica Sinica(English Edition)2007,81,4:17
20150 ka B.P.以来萨拉乌苏河流域主元素变动旋回显示文摘萨拉乌苏河流域米浪沟湾剖面150kaB.P.以来存在27个由风成砂与河湖相和古土壤构成的沉积旋回。通常后两者的Al2O3、TFe、Mn、TiO2、K2O、MgO、CaO和Na2O含量明显高于前者,而SiO2则相反,构成了与沉积旋回相应的150kaB.P.以来27个元素变化旋回。结合各元素的化学迁移特性、研究区所在的鄂尔多斯高原东南部洼地地貌特征以及季风沙区位置,论证了风成砂中SiO2含量增高,Al2O3、TFe、Mn、TiO2、K2O、MgO、CaO和Na2O相对降低,与干寒多风气候及其影响下石英的大量迁入有关,而河湖相和古土壤中SiO2相对迁移、Al2O3等呈聚集的势态,与暖湿气候作用下稳定性元素Al2O3、TFe、Mn、TiO2和非稳定性元素K2O、MgO、CaO、Na2O都能够从四周地表汇集于本区这种特殊的比较封闭的低地有关。研究表明,萨拉乌苏河流域150kaB.P.以来27个元素变化旋回与该时期北半球冰期-间冰期气候波动诱发的亚洲冬夏季风在毛乌素沙漠的多次更迭具有成因上的联系。李后信 李保生 祝一志 靳鹤龄 David Dian ZHANG 阎满存 张宇红 罗开利 姚春霞 2002地球化学2002,31,5:17
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