Confirmation of pelitic granulite in the Altai orogen and its geological significance

The existence of pelitic granulite in the Altai orogen was confirmed for the first time by detailed petrographic research and P-Tpseudosection modeling. The pelitic granulite has the assemblage of garnet ＋ cordierite ＋ K-feldspar ＋ biotite ＋ sillimanite ＋ plagioclase ＋ quartz with some samples containing the paragenesis of cordierite ＋ spinel. Peak conditions of the pelitic granuUte determined from the P-T pseudosection involved P = 0.5-0.6 GPa, T= 780-800℃ belonging to medium- to low-pressure type. SHRIMP U-Pb dating of zircon presented a metamorphic age of 292.8 ± 2.3 Ma. The discovery of pelitic granulite reflects an extensional environment with high heat flow in the southern margin of the Altai orogen during the Early Permian, which provides an important petrological constraint on the evolution of the Altai orogen.     

Inverse correlation between ancient winter and summer monsoons in East Asia？

There is a scientific debate on the relationship between ancient winter and summer monsoons in East Asia. Some scholars think that East Asian winter and summer monsoons are anti-correlated, and others think not. For this reason, this study is motivated to assess their linkage from the paleoclimate simulation perspective, through analyzing the Last Glacial Maximum （LGM） and mid-Holocene （MH） climate simulated by CCSM3 model. Compared to the present climate, the Aleutian low is found to be deepened and the East Asian winter monsoon （EAWM） is stronger during the LGM winter. The Pacific high in summer is noticed to be weakened and the East Asian summer monsoon （EASM） is weaker at the LGM. During the MH, the Aleutian low and the Asian high in winter are intensified, and the Asian low and the Pacific high in summer are enhanced, indicating that the EAWM and EASM are both stronger than today. Therefore, the EAWM is not always negatively correlated to the EASM. Their relationship may be different at different geological stages. It can be obtained at least from the numerical simulation results that the EAWM and the EASM is negatively correlated during the cooling period, while positively correlated during the warming period.     

树型于世:《型世言》的社会价值取向

阐释了《型世言》树型于世的社会价值取向。《型世言》意欲通过树立忠臣孝子、贞节烈妇、仁义之士等范型,为当时道德失范的社会提供一种家国伦理典范,妇德妇行楷模及社会人际伦理标准的全面道德价值标准。指出作者苦心孤诣以文树型,正是在社会转型期的晚明时代,中国知识分子对社会深沉关切的充分展示。     

历史早期的都城规划及其对地理环境的选择——以早商郑州商城和偃师商城为例

目的通过分析两座早商都城(郑州商城和偃师商城)的城市布局,探讨早商都城规划思想及其对后世都邑建设产生的影响。方法文献资料和考古资料相结合。结果发现郑州商城和偃师商城两座商城在城市轮廓、重要建筑物位置等方面有着比较相同的处理手段。两座都城在一些细节问题上又有着不同的布局特色,反映了微地理环境造成的城市布局差异,同时,都城功能的不同也导致城市布局出现细节上的差异。结论中国古代的都城规划思想可以追溯到早商的郑州商城和偃师商城。在早商的社会环境之下,已经有了一定的城市规划意识,形成一套初步的都城设计思想并付诸实践。早商的都城规划思想对以后的都邑规划产生了较为深远的影响。     

试论建筑施工过程中关于模板早拆技术的应用

模板早拆技术具有节约成本、提高工效等优点。本文阐述模板早拆技术的概况，介绍TLC和wYL两种模板早拆体系，并探讨模板早拆的优点以及注意事项等。     

论理查三世的美学价值

从美学悲剧性的角度解读莎士比亚的历史剧《理查三世》中的主人公理查三世的美学价值,其结论是:理查三世虽然是一个邪恶的人,但由于他具有强烈的悲剧抗争精神和超越自我的欲望,因此该形象显示出他的美学价值。     

论普世价值的普遍性和特殊性

普世价值长期存在于不同历史时期、不同社会文明之中,全球化时代的来临使得这一现象成为争议的一个焦点。普世价值是一柄双刃剑,既可以帮助一种文明以积极的姿态参与全球化进程,又可以以文化霸权主义的姿态对一种文明产生消极影响。应当从马克思主义哲学关于矛盾的普遍性与特殊性的两个方面同时考虑,才能真正把握普世价值的含义。     

葡萄山特长隧道假拟洞口施工技术

为了保护隧道洞口生态环境,避免高边坡、高仰坡大开挖,赋予隧道早进晚出新的涵义,葡萄山隧道进口采用假拟洞口工法施工。