西北太平洋边沿海来源跟演变及其与青藏高原隆升的彼此

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　　许浚远
　　中国博士对美国科学院院士 (2010 AGU Fall Meeting in SF,USA)
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　　已有 2012 次阅读 2010-10-30 12:21 |个人分类:生活点滴 |系统分类:科研笔记|
　　要害词:美国 院士 中国 博士 MIT
　　行将在美国San Francisco 召开2010 AGU Fall Meeting。一名中国（土）博士作为该Meeting的一个session的召集人，邀请了美国MIT 的一名美国科学院院士独特讨论“西北太平洋边缘海起源和演化及其与青藏高原隆升的彼此关联”。美国院士在收 邀请函那几天离MIT外出，回MIT时已经超过了作为受邀作者（Invited Author）的截止日期，但他与MIT的另外两名教授磋商后，认为该标题他们有很多货色要讲，中国博士对 此表现很欢迎，他们以一般作者寄出了论文摘要。召集人协商后，决议为该院士供给口头讲演的机遇。该院士的论 文摘要和中国博士的论文摘要，已经以网络情势公开发表。
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　　依据发表的摘要，美国院士的论文摘要有三名作者（其他两名为美国传授），论文观点根本上是他们的传统意 识。中国博士的论文摘要也有三名作者（其余两名作者是美国博士（副教学）和以色列迷信院士（1 971 MIT的博士）），论文观点是与传统认识完整不同的新认识。显然，美国院士和中国博士认识将会产生碰撞，而 且这种碰撞可能出乎美国院士的预料。
　　中国博士真挚盼望美国院士终极接受这一“挑衅”。即使美国院士“输了” 或者不接收这一新认识，中国博士仍旧对他充斥敬意，由于他的工作不仅是在这个问题上，在其他方面他已经做了 杰出的基本工作。还有一点尤其令中国博士尊重：他年纪已高（Ph.D., 1961, Yale University），依然活泼在科研第一线，身体力行。
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　　附1：两篇论文摘要
　　第一篇：
　　Two Dynamic Systems:
　　The Indian/Eurasia Intracontinental Convergent and the West Pacific Subduction Systems Controlled the Evolution of the Tibetan Plateau and the Development of Basins within Eastern Asia and Adjacent Offshore During Cenozoic Time
　　Burrell C Burchfiel, R D van der Hilst, Leigh Royden
　　ABSTRACT During Cenozoic time two dynamic systems, the India/ Eurasia intracontinental convergent and the West Pacific/Indonesia subduction systems, have been the major controls for the tectonic development of Southeastern Asia and its adjacent offshore basin and arcs. The boundary between these two systems is broad and fluctuated temporally and spatially but generally was positioned within the eastern part of the Asian continent. Within the India/Eurasia system approximately 3600 km of N-S convergence at the eastern Himalayan syntaxis has been accommodated by N-S shortening within northern India and Eurasian to form the thickened Tibetan crust. In early Cenozoic time significant accommodation also occurred by the SE extrusion of lithospheric fragments from southeastern Tibet. To the east, the extrusion of lithospheric fragments was accommodated by trench roll back in the Indonesian and southern West Pacific subduction zones. Extensional basins opened within the extruded lithosphere in complex ways, but quantitatively the extension was less than the total eastward motion. The subduction systems north of Indochina/Southern China also rolled back creating basins beginning in Late Cretaceous time within eastern China and adjacent offshore, but was accompanied by very minor extrusion from the west. Significant SE extrusion in the southern region ceased in Middle/Late Miocene when clockwise rotation around the eastern Himalayan syntaxis and opening of basins within western Indochina began, but to the north extension continued within eastern China and off shore and thickening of crust within northern Tibet continued. Subduction within the West Pacific system had two different modes; in the north, the subducted slabs bottomed in the mantle transition zone whereas in the south they plunged to more than 1200 km depth. The change in behavior coincides with the northern limit of early Cenozoic extruded lithosphere.
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　　第二篇：
　　Correlation between development of the marginal basin system of NW Pacific and uplift of Tibet Plateau
　　Junyuan Xu 许浚远, Tom K Kelty, Zvi Ben-Avraham
　　ABSTRACT BODY: The Java-Makassar-Sulu-Celebes Seas, South China Sea (together with the East China Sea), Japan Sea, Okhotsk Sea and Bering Sea basins, exhibit the typical geometry of dextral, transtensional basins and constitute a gigantic, linked dextral and transtensional rift system (e.g., Xu et al. 1996, 2000). The basin system resulted from a large amount of northward motion of East Eurasia relative to the arcs located to the south of these basins and formed as a response to the collision between the Indian and Eurasian plates that began about 50 Ma ago.More exactly,sale paul smith, the eastern Eurasian Plate moved in a complex NEN-NE-NEE-EW, arcuate circuits, in steps progressively approaching North America, due to large non-rigid nearly simple-shear deformation of the Eurasia-Arctic region (Xu et al., 2005, 2010)). Such a large amount of northward motion of the East Eurasia (>1000 km) greatly lessened its convergence with respect to India. On the other hand, uplift of the Tibetan Plateau depended on the convergence of the Indian and Eurasian plates.
　　We suggest two first-order stages for uplift of the Tibet plateau: (1) a slow uplift stage or “Uplift Stage During Marginal Basins’ Rifting”, and (2) a rapid uplift stage or “Uplift Stage During Marginal Basins’ Postrifing.” The first stage lasted from around 50 Ma to 15 (or 20) Ma when intensive rifting of the marginal basin system took place. During this stage, both the India-Asia convergence and the Tibet Plateau uplift were generally slow. The large shortening deficits in the Tibetan Plateau that were calculated under the premise that Asia was fixed (e.g., Jaeger et al., 1989; Johnson, 2002) were attributed to the large northward displacement of Asia, rather than to tectonic escape (e.g., Tapponnier et al., 1982) or lower crust eclogitization (e. g., Le Pichon et al, 1992). Some belts of high elevations in Tibet could exist and probably represent earlier (e.g., Mesozoic to the earliest Paleogene) uplift or shortening localization. The second stage lasted from 15 (or 20) Ma to 0 Ma when intense rifting of the major marginal basins generally ceased. During this stage, the rapid uplift of the plateau (e.g., Copeland et al., 1987; Harrison et al., 1992; Molnar et al., 1993; Lu et al., 2004, 2009) was simply due to the rapid convergence. Uplift and thickening of the Tibetan crust could have occurred in one of ways as suggested by some authors (e.g., Powell and Conaghan, 1973; England and Searle, 1986; Zhang and Morgan, 1986) or in a combination of these ways. The two phenomenon that include the Indian punch rifting of Tibet since 15 Ma (e.g., Kapp and Guynn, 2004) and the “slowing” of India’s convergence with Eurasia since 20 Ma (e.g., Molnar and Stock, 2009) or around 15 Ma, possibly occurred due to the larger resistance from Asia that became stable during this stage. We propose that the period between 20 Ma and 15 Ma might be a transitional episode between the two first-order stages. Either of the first-order stages could be divided into many sub-order stages, as is indicated by many unconformities in both the plateau and the marginal basins.
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　　附2:中国(土)博士召集session信息:
　　一年一度的国际地球物理界嘉会——2010美国地球物理结合会秋季会议（2010 AGU Fall Meeting）已经拉开序幕。预感今年与去年一样，将有一万六千名以上学者汇聚在San Francisco，交流和讨论与地球、大气、行星、太阳系等物理有关的各个领域最新研究进展。
　　我作为其中一个分会的招集人，欢迎世界各地的有关学者就“西北太平洋边沿盆地来源与演变、青藏高原隆升 历史和这两者接洽”的各个方面进行交换、讨论。
　　该分会先容，请链接：
　　http://www.agu.org/meetings/fm10/program/scientific_session_search.php?show=detail&sessid=7 20
　　IP: 58.48.110.* [13][游客]游客2011-1-7 16:45
　　博主您好，您是地大资源学院的老师吧，我是地学院的学生,prada sunglasses，感到您这个论文比拟有意思，不晓得相关研究结果发了国际文章没有？可否发给我一份，我刚在网上查了一下没 有找到相干论文。谢谢！myi995@163.com
　　博主回复：很愉快我校的学生对这个重大国际问题感兴致。我的论文还不在国外期刊发表，有关海内论文等请 见我的有关博文，请先中文期刊网上看一看我的中文有关论文。若有问题须要进一步讨论，或有不批准见，比喻说 以为国际期刊有关论文（包含Nature和Science上的有关论文）比我的中文论文更有情理，或去我办 公室讨论，或在网上公然讨论,gio armani，或在国内外期刊上探讨，特殊欢送对我的实践进行质疑，不要顾虑我是老师。
　　[1]rock67832008-10-27 13:54
　　许博士：
　　看了您的文章，感到您提出的思维很有提高性。为什么将您的博文删了呢？
　　你的西北太平洋盆地的成因基础上是准确的。这在今后至少50年之内会证实的。
　　要说您的看法还稍有一点不足的话，那就是盆地形成动力学上稍不足，甚至于您的学说没有措施解决盆地海底 年纪和太平洋5000公里海底缩短的小问题。
　　您把地球假设成有收缩，也有膨胀，就能很好地解决您的学说的能源学的问题。
　　实在，既然，不论从大的时光尺度（多少亿年）、或是从小的时间标准（几年至几百年）看,2011 jordan shoes，日长有周期性变化、地球自转有周期性变更，那就阐明地球（至少是低纬度区域）确实存在压缩和膨胀的交替变 化。
　　博主回复：固体地球历史上发生过大范围膨胀和收缩的观点是过错的，这是早已证明了的。板块构造基本框架 是正确的，固然我曾经猜忌过。
　　牛津大学教授对中国学者科研工作"切中时弊"的总体评价 http://bbs.sciencenet.cn/home.php?mod=space&uid=67397&do=blog&id=377786
　　已有 2259 次阅读 2010-10-28 11:42 |个人分类:生活点滴|系统分类:论文交流|
　　症结词:牛津大学 板块结构
　　一位中国学者及其配合者对地学范畴一个长期争辩不休的重大问题（西北太平洋边缘海起源和演化）进行了" 十年磨一剑"的研究，将研究成果（约110页两篇文稿）应约寄给牛津大学（Universit y of Oxford）教授P. England, 他给了一个总体评价（注：商定时他很忙，但他许诺能给个总体评价。约一个月后他给了这个评价） :
　　"...... Having said that, I found the papers to be very well written, and to present a coherent and convincing view of the tectonic history of the region."
　　Prof. England 是当今最巨大的欧亚大陆板块构造研究专家之一。虽然他评阅文稿的时间匆促和对文中波及众多重要问题的每个新 思惟评价不必定都非常在行，但仍旧能体现他专业上的高水准，他的评价是“言简意赅”的，体现在关键词“co herent”（前人的研究是在一个毛病的大条件下，把许多主要问题孤立的研究，得出无比庞杂的、混乱的认 识） 。中国学者的研究再次证明“真谛经常是简略的”。这个评价应当是历史性的。但必需解释，这个重大问题并没有 彻底解决（在边缘海演化重建方面还有工作需要进一步深刻），当初大概实现了80分左右， 假如彻底解决是100分的话。
　　欢迎对这个评估和有关问题持续讨论和质疑。.
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　　中国一项重大研究计划---“南海深海过程演变” http://bbs.sciencenet.cn/home.php?mod=space&uid=67397&do=blog&id=378190
　　已有 2143 次浏览 2010-10-29 09:03 |个人分类:生涯点滴|体系分类:博客消息
　　|关键词:基金，重大研究计划，南海，同济大学，中科院
　　我十分兴奋地看到，通过同济大学、中国科学院等单位的院士们和老总们以及其他科学家艰难尽力，国家做作 科学基金委在2010年初于同意了一重大研究筹划“南海深海进程演化”，该方案的提出“是基于海盆构成、沉 积响应和生物地球化学三方面的斟酌”，其中最关键的是第一个方面“盆地造成”。
　　名目衔接：http://www.scs-deep.org/
　　当然，进行该问题研讨的项目是当之无愧的中国国度天然科学基金“重大研究规划”，就“西北太平洋边缘盆 地的起源和演化”这一国际性的重大问题而言，该打算相称于“一桌丰富宴席上的一道大菜”。做好这道大菜，或 谓真正到达国际当先程度，将无愧于中国科学院院士名称，无愧于中国地球科学家等待，再大一点的道理，无愧于 党、政府和国民的期待和宏大投入（经费1.5亿元）。
　　在破项之初，我预祝重大研究计划美满胜利！也乐意为之付出努力！
　　附：领导专家组成员
　　姓名专业技巧职务专业所在单位汪品先（组长）教授/院士海洋地质同济大学孙枢研究员/院士地质学中国科学院地质与地球物理研究所苏纪兰研究员/院士物理海洋国家海洋局第二海洋研究所徐洵研究员/院士海洋生物国家海洋局第三海洋研究所朱伟林总地质师海洋地质中国大陆石油总公司杨胜雄总工程师地球物理广 州海洋地质考察局王东晓研究员物理海洋中国科学院南海海洋研究所
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