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论《大洋国》文本形成的历史语境
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作者 左敏 《浙江学刊》 北大核心 2023年第4期233-240,共8页
随着20世纪后半叶剑桥学派的兴起与共和主义的复兴,尤其是约翰·波考克在哈林顿研究方面的贡献,《大洋国》在共和主义思想发展史与西方政治思想史上的重要地位得到确认。因此,本文不再着重于其思想理论的阐释,而是采用语境主义研究... 随着20世纪后半叶剑桥学派的兴起与共和主义的复兴,尤其是约翰·波考克在哈林顿研究方面的贡献,《大洋国》在共和主义思想发展史与西方政治思想史上的重要地位得到确认。因此,本文不再着重于其思想理论的阐释,而是采用语境主义研究方法,从文本意涵转向文本形成,构建《大洋国》书写及出版的历史语境,分析其介入当时政治的方式,考察其参与的政治辩论,从而呈现它在当时思想光谱中的位置及其独特性,为更深入地理解《大洋国》的思想主张和重要影响提供历史性视角,并彰显其思想的历史性和当代性。 展开更多
关键词 《大洋国》 共和 共和主义 文本形成 历史语境
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重读《大洋国》:打捞遗失的信息 被引量:1
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作者 阎照祥 《学海》 CSSCI 北大核心 2006年第4期123-129,共7页
以往国内学界(包括笔者本人)对哈林顿及其《大洋国》的释读曾有偏差,褒贬不当,忽略了其中的许多有价值的观点,如社会多等级协和共处、建立以士绅为权力核心的政府体制、民选两院制议会、对官员实行轮换监督等。对其中法治、宗教宽容和... 以往国内学界(包括笔者本人)对哈林顿及其《大洋国》的释读曾有偏差,褒贬不当,忽略了其中的许多有价值的观点,如社会多等级协和共处、建立以士绅为权力核心的政府体制、民选两院制议会、对官员实行轮换监督等。对其中法治、宗教宽容和多党并存的观点也肯定不足。本文旨在重新评估哈林顿政治立场,及以“混合宪政”为基调的君主立宪制思想,重新审视其历史地位与其政治观点的可行性。 展开更多
关键词 政治思想史 哈林顿 《大洋国》 家体制
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哈灵顿的政治思想
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作者 王宁 《文教资料》 2008年第36期70-71,共2页
詹姆斯·哈灵顿是英国17世纪一位富有创造性的政治思想家,他的主要著作有<大洋国>一书.在这本书中,哈灵顿结合近代国家的兴起提出了很多富于创造性和建设性的主张,使共和主义在近代有了直接的发展契机和直接的理论渊源,他的... 詹姆斯·哈灵顿是英国17世纪一位富有创造性的政治思想家,他的主要著作有<大洋国>一书.在这本书中,哈灵顿结合近代国家的兴起提出了很多富于创造性和建设性的主张,使共和主义在近代有了直接的发展契机和直接的理论渊源,他的政治思想对欧美政治制度产生了巨大的影响,在西方政治思想史上具有重要的地位.哈灵顿在这部看似乌托邦的小说中寄托了几乎全部的政治理想.本文试图在总结前人研究成果的基础上,系统论述哈灵顿的政治思想,包括共和思想、代议制思想、法治思想等.并客观评价他在西方政治思想史上的地位. 展开更多
关键词 17世纪英 哈灵顿 《大洋国》 政治思想
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Possible Impact of the Summer North Atlantic Oscillation on Extreme Hot Events in China 被引量:10
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作者 SUN Jian-Qi 《Atmospheric and Oceanic Science Letters》 2012年第3期231-234,共4页
This paper reveals that the summer North Atlantic Oscillation (SNAO) is closely related to the extreme hot event (EHE) variability in China during the period of 1979 2009, with a positive-phase (negative-phase) SNAO c... This paper reveals that the summer North Atlantic Oscillation (SNAO) is closely related to the extreme hot event (EHE) variability in China during the period of 1979 2009, with a positive-phase (negative-phase) SNAO corresponding to less (more) EHEs in northern China. The summer circulation anomalies associated with the SNAO give further confirmation of the above relationship. In a positive-phase (negative-phase) SNAO year, there is an anomalous cyclone (anticyclone) over central East Asia, which can increase (decrease) the total cloud cover over this region. Such changes of the total cloud cover can then decrease (increase) the solar radiation reaching the surface, which is consequently unfavorable (favorable) to the formation of EHEs over northern China. 展开更多
关键词 summer North Atlantic Oscillation extreme hot events total cloud cover solar radiation
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Weakening of Winter North Atlantic Oscillation Signal in Spring Precipitation over Southern China 被引量:3
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作者 ZHOU Bo-Tao 《Atmospheric and Oceanic Science Letters》 CSCD 2013年第5期248-252,共5页
In this study,the relationship between the North Atlantic Oscillation (NAO) in winter (DecemberFebruary) and the precipitation over southem China (SCP) in the following spring (March-May) was investigated.Resu... In this study,the relationship between the North Atlantic Oscillation (NAO) in winter (DecemberFebruary) and the precipitation over southem China (SCP) in the following spring (March-May) was investigated.Results showed an interdecadal change,from strong to weak connection,in their connection.Before the early 1980s,they were highly correlated,with a strong (weak) winter NAO followed by an increased (decreased) spring SCP.However,after the early 1980s,their relationship was weakened significantly.This unstable relationship may be linked to the climatological change of East Asian jet.Before the early 1980s,the wave train along the Asian jet propagated the NAO signal eastward to East Asia and affected local upper-tropospheric atmospheric circulation.A strong NAO in winter led to an anomalous anticyclonic circulation at the south side of 30°N in East Asia in spring,resulting in an increase of SCP.In contrast,after the early 1980s,the wave train pattern along the Asian jet extended eastward due to strengthening of the climatological East Asian jet.Correspondingly,the NAO-related East Asian atmospheric circulations in the upper troposphere shifted eastward,thereby weakening the linkage between the spring SCP and the winter NAO. 展开更多
关键词 North Atlantic Oscillation precipitation over southern China interdecadal change
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Impact of Preceding Summer North Atlantic Oscillation on Early Autumn Precipitation over Central China 被引量:3
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作者 XU Han-Lie FENG Juan SUN Cheng 《Atmospheric and Oceanic Science Letters》 CSCD 2013年第6期417-422,共6页
This study examined the impact of the preceding boreal summer(June–August) North Atlantic Oscillation(NAO) on early autumn(September) rainfall over Central China(RCC). The results show that a significant positive cor... This study examined the impact of the preceding boreal summer(June–August) North Atlantic Oscillation(NAO) on early autumn(September) rainfall over Central China(RCC). The results show that a significant positive correlation exists between the preceding summer NAO and the early autumn RCC on the interannual timescale. In order to understand the physical mechanism between them, the role of ocean was investigated. It was found that the strong summer NAO can induce a tripole sea surface temperature anomaly(SSTA) in the North Atlantic; this SSTA pattern can persist until early autumn. The diagnostic analysis showed that the tripole SSTA pattern excites a downstream Atlantic-Eurasian(AEA) teleconnection, which contributes to an increase in RCC. The circulation anomalies related to SSTA caused by the weak NAO are opposite, so the RCC is less than normal. The results imply that the preceding summer NAO may be regarded as a forecast factor for the early autumn RCC. 展开更多
关键词 North Atlantic Oscillation early autumn rainfall tripole sea surface temperature anomaly Atlantic-Eurasian teleconnection atmospheric-oceanic coupled bridge
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Recent Observations and Modeling Study About Sea Fog over the Yellow Sea and East China Sea 被引量:1
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作者 ZHANG Suping 《Journal of Ocean University of China》 SCIE CAS 2012年第4期465-472,共8页
This review presents some of the latest achievements in sea fog research,including fog climatology,fog structure in the marine atmospheric boundary layer,and numerical simulations and forecasting of fog.With the devel... This review presents some of the latest achievements in sea fog research,including fog climatology,fog structure in the marine atmospheric boundary layer,and numerical simulations and forecasting of fog.With the development of atmospheric observational techniques and equipments,new facts about sea fog are revealed.The mechanisms involved in the formation,development and dissipation of sea fog are further explored with the help of advanced atmospheric models. 展开更多
关键词 sea fog climatology sea fog structure atmospheric boundary layer sea fog observation sea fog simulation
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Marine Atmospheric Boundary Layers Associated with Summer Monsoon Onset over the South China Sea in 1998 被引量:7
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作者 WANG Dong-Xiao ZHOU Wen +2 位作者 YU Xiao-Li XIE Qiang WANG Xin 《Atmospheric and Oceanic Science Letters》 2010年第5期263-270,共8页
The variations of the marine atmospheric boundary layer (MABL) associated with the South China Sea Summer Monsoon were examined using the Global Positioning System (GPS) sounding datasets obtained four times daily dur... The variations of the marine atmospheric boundary layer (MABL) associated with the South China Sea Summer Monsoon were examined using the Global Positioning System (GPS) sounding datasets obtained four times daily during May-June 1998 on board Research Vessels Kexue 1 and Shiyan 3. The MABL height is defined as the height at the lowest level where virtual potential temperature increases by 1 K from the surface. The results indicate that the MABL height decreased over the northern South China Sea (SCS) and remained the same over the southern SCS, as sea surface temperature (SST) fell for the northern and rose for the southern SCS after the monsoon onset. Over the northern SCS, a decrease in both the SST and the surface latent-heat flux after the onset resulted in a reduction of the MABL height as well as a decoupling of MABL from clouds. It was found that MABL height reduction corresponded to rainfall occurrence. Over the southern SCS, a probable reason for the constant increase of SST and surface heat flux was the rainfall and internal atmospheric dynamics. 展开更多
关键词 monsoon onset marine atmospheric boundary layer height atmosphere internal dynamics SST
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Transatlantic Cooperation During the Second World War: The First Stages of Economic Cooperation During the "Phoney War"
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作者 Elisabeth du Reau 《History Research》 2016年第1期55-58,共4页
During the Second world war, the Franco-British cooperation included the organization of purchasing missions for airnautical material in the States. On 25 november 1939, a Franco-British agreement was set up to organi... During the Second world war, the Franco-British cooperation included the organization of purchasing missions for airnautical material in the States. On 25 november 1939, a Franco-British agreement was set up to organize two purchasing missions in the United States under the control of a "Liaison Committee" supervised by the Treasury Secretary, Henry Morgenthau. Edouard Daladier, French Chief of Government, sent Ren6 Pleven to establish contacts with General Arnold (AirCorps). The Franco-British financial contribution facilitated a main spurt in investments which help modernize the American products apparatus. First contacts were established on April 1940, to be delivered in September. While France had not be able to benefit from significant part of these orders, Great Britain would take over some units that were originally allocated to France. These contracts would later facilitate the development of transatlantic cooperation. 展开更多
关键词 purchasing mission aeronautical material planes: bombers and fighters Liaison Committee solidarity economy tripartite negotiation actors (France United Kingdom United States)
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Diversity and Distribution of Tunicata (Urochordata)in Tobaao
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作者 Linda L. Cole 《Journal of Life Sciences》 2012年第2期221-232,共12页
The beautiful island of Tobago is the southernmost Caribbean island. The sister island of Trinidad belongs to the Republic of Trinidad and Tobago. Thirty-two species of tunicates were collected from Tobago from depths... The beautiful island of Tobago is the southernmost Caribbean island. The sister island of Trinidad belongs to the Republic of Trinidad and Tobago. Thirty-two species of tunicates were collected from Tobago from depths of 40 m or less and they were listed. Tunicates listed in this work were from collections made in 1956, 1991, 1993, 2002 and 2006 and although specimens were collected from the Atlantic Ocean side of the island and the Caribbean Sea side, all species turned out to be typical Caribbean species. 展开更多
关键词 Tobago TUNICATES Caribbean sea taxonomy.
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Influence of Tidal Inlets on Tsunami Waves in the Atlantic (Charente Region, France)
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作者 Lubna Amal Amir Amandine Nicolle Jean-Christophe Maurin 《Journal of Shipping and Ocean Engineering》 2014年第9期262-270,共9页
The French Atlantic coast seismicity is minor to moderate. Nevertheless, in western (north and central) part of France, the active tectonics related to the south Armorican and the Bay of Biscay context results somet... The French Atlantic coast seismicity is minor to moderate. Nevertheless, in western (north and central) part of France, the active tectonics related to the south Armorican and the Bay of Biscay context results sometimes in shallow earthquakes with magnitude above five (e.g., the Oleron seismic crisis, magnitude (local) = 5.2, 1972). The Charente region is featured by semi-diurnal tides that reach about six meters in height during the high tide period. Inlets are the main features of the Atlantic margin geomorphology nearby the Charente. Minor tsunamis have been observed and reported in the past. Here, we present a tsunami modelling computed with the TELEMAC package that solves the non linear shallow water equations. This work helps to identify the role of the inlets that characterize the Charente's geomorphology on water wave's propagation. A tidal model is considered while the tsunami simulation is performed. The modelling results show that the Antioche, the Maumusson and the Pertuis inlets protect the Charente coast from destructive waves. 展开更多
关键词 Oleron Island French Atlantic INLET TSUNAMI earthquake modeling.
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The Effect of the East China Sea Kuroshio Front on the Marine Atmospheric Boundary Layer 被引量:5
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作者 ZHANG Suping LIU Jingwu MENG Xiangui 《Journal of Ocean University of China》 SCIE CAS 2010年第3期210-218,共9页
Various satellite data,JRA-25(Japan reanalysis of 25 years) reanalyzed data and WRF(Weather Research Forecast) model are used to investigate the in situ effect of the ESKF(East China Sea Kuroshio Front) on the MABL(ma... Various satellite data,JRA-25(Japan reanalysis of 25 years) reanalyzed data and WRF(Weather Research Forecast) model are used to investigate the in situ effect of the ESKF(East China Sea Kuroshio Front) on the MABL(marine atmospheric boundary layer).The intensity of the ESKF is most robust from January to April in its annual cycle.The local strong surface northerly/northeasterly winds are observed right over the ESKF in January and in April and the wind speeds decrease upward in the MABL.The thermal wind effect that is derived from the baroclinic MABL forced by the strong SST gradient contributes to the strong surface winds to a large degree.The convergence zone existing along the warm flank of the ESKF is stronger in April than in January corresponding to the steeper SST(sea surface temperature) gradient.The collocations of the cloud cover maximum and precipitation maximum are basically consistent with the convergence zone of the wind field.The clouds develop higher(lower) in the warm(cold) flank of the ESKF due to the less(more) stable stratification in the MABL.The lowest clouds are observed in April on the cold flank of the ESKF and over the Yellow Sea due to the existence of the pronounced temperature inversion.The numerical experiments with smoothed SST are consistent with the results from the ovservations. 展开更多
关键词 East China Sea Kuroshio SST front EFFECT marine atmospheric boundary layer
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New record of the genus Phycocaris Kemp,1916(Decapoda:Caridea:Hippolytidae)from Hainan Island,China
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作者 甘志彬 李新正 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2017年第3期664-667,共4页
The monotypic genus Phycocaris Kemp, 1916, which was established based on material from the Indian Ocean and previously only known from the type localities, Australia and Japan, is now newly recorded from the South Ch... The monotypic genus Phycocaris Kemp, 1916, which was established based on material from the Indian Ocean and previously only known from the type localities, Australia and Japan, is now newly recorded from the South China Sea. A detailed description of Phycocaris simulans Kemp, 1916 based on the specimen collected from Hainan Island is presented. Specific features and the differences between the Indian Ocean and the present material are described. 展开更多
关键词 new record HIPPOLYTIDAE Phycocaris China Sea
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Information for Authors
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《Journal of Ocean University of China》 SCIE CAS CSCD 2017年第5期932-932,共1页
The Journal of Ocean University of China(Oceanic and Coastal Sea Research)is a comprehensive academic quarterly sponsored by the Ocean University of China,published one volume per year.This journal is devoted to the... The Journal of Ocean University of China(Oceanic and Coastal Sea Research)is a comprehensive academic quarterly sponsored by the Ocean University of China,published one volume per year.This journal is devoted to the publication of the theoretical and applied research results on oceanography and marine fisheries.The fields covered include the physical,chemical,biological,geological,environmental,engineering and technological aspects of these sciences.The types of papers include research papers,notes,technical reports,science and technology letters,reviews and overviews,etc. 展开更多
关键词 devoted technological quarterly letters notes submit elsewhere copyright publisher citation
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Interannual variability of latent and sensible heat fluxes in the South China Sea
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作者 宗海波 刘玉光 +2 位作者 修鹏 徐青 荣增瑞 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2010年第1期153-159,共7页
The South China Sea (SCS) is significantly influenced by El Nino and the Southern Oscillation (ENSO) through ENSO-driven atmospheric and oceanic changes. We analyzed measurements made from 1960 to 2004 to investig... The South China Sea (SCS) is significantly influenced by El Nino and the Southern Oscillation (ENSO) through ENSO-driven atmospheric and oceanic changes. We analyzed measurements made from 1960 to 2004 to investigate the interannual variability of the latent and sensible heat fluxes over the SCS. Both the interannual variations of latent and sensible heat fluxes are closely related to ENSO events. The low-pass mean heat flux anomalies vary in a coherent manner with the low-pass mean Southern Oscillation Index (SOI). Time lags between the heat flux anomalies and the SST anomalies were also studied. We found that latent heat flux anomalies have a minimum value around January of the year following El Nino events. During and after the mature phase of E1 Nino, a change of atmospheric circulation alters the local SCS near-surface humidity and the monsoon winds. During the mature phase of E1 Nino, the wind speed decreases over the entire sea, and the air-sea specific humidity difference anomalies decreases in the northern SCS and increases in the southern SCS. Thus, a combined effect of wind speed anomalies and air-sea specific humidity difference anomalies results in the latent heat flux anomalies attaining minimum levels around January of the year following an E1 Nino year. 展开更多
关键词 latent heat flux sensible heat flux South China Sea
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"Collapse" of Europe in the Light of Energy Dependence
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作者 Marina Glamotchak 《Sociology Study》 2015年第7期592-604,共13页
The issue of the future of Europe is becoming increasingly important what with the depth of the economic crisis that started in 2008. In addition to a continuous growth in the number of the unemployed, the crisis part... The issue of the future of Europe is becoming increasingly important what with the depth of the economic crisis that started in 2008. In addition to a continuous growth in the number of the unemployed, the crisis particularly emphasizes the chronic level of energy dependence. The energy saving measures ~energy efficiency), diversification of sources (stability of supply), and the creation of substitutes in renewable energy (energy transition), intertwine with administrative measures and form the response of European countries to the growing energy dependence. At the same time, although facing the threatening warming (or cooling) of the Earth, Europe, as a big advocate of reducing CO2 remains passively dependent on NATO (North Atlantic Treaty Organization) policy in the field of defense in the context of energy dependence. However, for the first time after many decades, Europe and America do not have the same energy, and consequently geo-strategic objective: The US has become energy independent while Europe is chronically energy dependent. 展开更多
关键词 Energy transition energy security energy dependence climate change DEFENCE
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The Formation of Wind Curl in the Marine Atmosphere Boundary Layer over the East China Sea Kuroshio in Spring
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作者 ZHANG Suping KONG Yang 《Journal of Ocean University of China》 SCIE CAS 2014年第6期883-892,共10页
Various data are used to investigate the characteristics of the surface wind field and rainfall on the East China Sea Kuroshio(ESK) in March and April, 2011. In March, the wind speed maximum shows over the ESK front(E... Various data are used to investigate the characteristics of the surface wind field and rainfall on the East China Sea Kuroshio(ESK) in March and April, 2011. In March, the wind speed maximum shows over the ESK front(ESKF) in the 10 meter wind field, which agrees with the thermal wind effect. A wind curl center is generated on the warm flank of the ESKF. The winds are much weaker in April, so is the wind curl. A rainband exists over the ESKF in both the months. The Weather Research and Forecasting(WRF) model is used for further researches. The winds on the top of the marine atmosphere boundary layer(MABL) indicate that in March, a positive wind curl is generated in the whole MABL over the warm flank of the ESKF. The thermal wind effect forced by the strong SST gradient overlying the background wind leads to strong surface northeasterly winds on the ESKF, and a positive shearing vorticity is created over the warm flank of the ESKF to generate wind curl. In the smoothed sea surface temperature experiment, the presence of the ESKF is responsible for the strong northeast winds in the ESKF, and essential for the distribution of the rainfall centers in March, which confirms the mechanism above. The same simulation is made for April, 2011, and the responses from the MABL become weak. The low background wind speed weakens the effect of the thermal wind, thus no strong Ekman pumping is helpful for precipitation. There is no big difference in rainfall between the control run and the smooth SST run. Decomposition of the wind vector shows that local wind acceleration induced by the thermal wind effect along with the variations in wind direction is responsible for the pronounced wind curl/divergence over the ESKF. 展开更多
关键词 the East China Sea Kuroshio front Ekman pumping thermal wind effect precipitation
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VARIATION OF THE MONSOON TROUGH INTENSITY IN THE SOUTH CHINA SEA AND WESTERN NORTH PACIFIC OCEAN AND ITS RELATIONSHIP TO TROPICAL CYCLONE ACTIVITIES
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作者 高建芸 余锦华 +1 位作者 张秀芝 张容焱 《Journal of Tropical Meteorology》 SCIE 2011年第3期209-220,共12页
Using the daily average of the NCEP/DOE AMIP-II reanalysis data from 1979 to 2005 and the characteristics of monsoon troughs in the western North Pacific,we established an intensity index and a location index to descr... Using the daily average of the NCEP/DOE AMIP-II reanalysis data from 1979 to 2005 and the characteristics of monsoon troughs in the western North Pacific,we established an intensity index and a location index to describe the activity of the monsoon troughs in three different regions and their impacts on tropical cyclones generated therein(MTTCs).The behavior of the monsoon troughs was analyzed.The following conclusions are obtained:(1)The established monsoon trough intensity index has a positive correlation to the location index,indicating that stronger monsoon trough intensity corresponds to more northward location.(2)Monsoon trough intensity exhibits significant interannual variation,with obvious periods of 4–5 years prior to 1994 and 2–3 years afterwards.(3)The affecting factors on monsoon trough intensity are different with areas.The preceding SST anomaly results in anomalous atmospheric circulation, leading to the anomaly of monsoon trough intensity in different areas.(4)The frequency of cyclogenesis and location anomalies of the MTTC are closely related to the intensity and location of the monsoon trough. Most of the anomalously less MTTC years coincide with the years with a weak general monsoon trough and weak regional monsoon troughs.The anomalously more MTTC years are associated with both a strong general monsoon trough and a weak general monsoon trough combined with a strong one over the South China Sea,though with a larger probability for the latter.(5)The interseasonal variation of the intensity of monsoon troughs provides favorable conditions for TC generation and development.The monsoon trough is in the active periods of both quasi-biweekly 10 to 20 day and 30 to 60 day oscillations,which is favorable for MTTC occurrence. 展开更多
关键词 South China Sea-western North Pacific monsoon troughs intensity change tropical cyclones
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Exotic origin of the Chinese continental shelf: new insights into the tectonic evolution of the western Pacific and eastern China since the Mesozoic 被引量:33
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作者 Yaoling Niu Yi Liu +15 位作者 Qiqi Xue Fengli Shao Shuo Chen Meng Duan Pengyuan Guo Hongmei Gong Yan Hu Zhenxing Hu Juanjuan Kong Jiyong Li Jinju Liu Pu Sun Wenli Sun Lei Ye Yuanyuan Xiao Yu Zhang 《Science Bulletin》 SCIE EI CAS CSCD 2015年第18期1598-1616,共19页
The effect of paleo-Pacific subduction on the geological evolution of the western Pacific and continental China is likely complex. Nevertheless, our analysis of the distribution of Mesozoic granitoids in the eastern c... The effect of paleo-Pacific subduction on the geological evolution of the western Pacific and continental China is likely complex. Nevertheless, our analysis of the distribution of Mesozoic granitoids in the eastern continental China in space and time has led us to an interesting conclusion: The basement of the continental shelf beneath East and South China Seas may actually be of exotic origin geologically unrelated to the continental lithosphere of eastern China. By accepting the notion that the Jurassic- Cretaceous granitoids in the region are genetically associated with western Pacific subduction and the concept that subduction may cease to continue only if the trench is being jammed, then the termination of the granitoid magmatism throughout the vast region at -88±2 Ma manifests the likelihood of "sudden", or shortly beforehand (- 100 Ma), trench jam of the Mesozoic western Pacific subduction. Trench jam happens if the incoming "plate" or portion of the plate contains a sizeable mass that is too buoyant to subduct. The best candidate for such a buoyant and unsubductable mass is either an oceanic plateau or a micro-continent. We hypothesize that the basement of the Chinese continental shelf represents such an exotic, buoyant and unsubductable mass, rather than seaward extension of the continental lithosphere of eastern China. The locus of the jammed trench (i.e., the suture) is predictably located on the shelf in the vicinity of, and parallel to, the arc-curved coastal line of the southeast continental China. It is not straightforward to locate the locus in the northern section of the East China Sea shelf because of the more recent (〈20 Ma) tectonic re-organization associated with the opening of the Sea of Japan. We predict that the trench jam at - 100 Ma led to the re-orientation of the Pacific plate motion in the course of NNW direction as inferred from the age-progressive Emperor Seamount Chain of Hawaiian hotspot origin (its oldest unsubdued Meiji and Detroit seamounts are -82 Ma), making the boundary between the Pacific plate and the newly accreted plate of eastern Asia transform fault at the location east of the continental shelf of exotic origin. This explains the apparent-40 Myr magmatic gap from - 88 to - 50 Ma prior to present-day western Pacific subduction initiation. We propose that basement penetration drilling on well-chosen sites is needed to test the hypothesis in order to reveal the true nature of the Chinese continental shelf basement. This testing becomes critical and cannot longer be neglected in order to genuinely understand the tectonic evolution of the western Pacific and its effect on the geology of eastern China since the Mesozoic, including the cratonic lithosphere thinning, related magmatism/mineralization, and the mechanism of the subsequent South China Sea opening, while also offering novel perspectives on aspects of the plate tectonics theory. We also suggest the importance of future plate tectonic reconstruction of the western Pacific to consider the nature and histories of the Chinese continental shelf of exotic origin as well as the probable transform plate boundary from - 100 to -50 Ma. Effort is needed to reveal the true nature and origin of the - 88 ± 2 Ma granitic gneisses in Taiwan and the 110-88 Ma granitoids on the Hainan Island. 展开更多
关键词 Mesozoic granitoids in eastern ChinaExotic origin of Chinese continental shelf Trenchjam Transform plate boundary Basal hydrationweakening Lithosphere thinning Cratondestruction Mantle hydrous melting Crustalmelting Plate tectonics South China Sea
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Quaternary primary productivity in Porcupine Seabight,NE North Atlantic
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作者 LI XiangHui Akihiro KANO +4 位作者 CHEN YunHua Chiduru TAKASHIMA XU WenLi XU BaoLiang WANG RuiJian 《Science China Earth Sciences》 SCIE EI CAS 2012年第2期306-314,共9页
Biogenic opal and calcium carbonate contents in the Quaternary fine-grained sediments in the deep sea coral mound area (Hole U1317E and Hole U1318B drilled by IODP Expedition 307) in Porcupine Seabight, southwest off ... Biogenic opal and calcium carbonate contents in the Quaternary fine-grained sediments in the deep sea coral mound area (Hole U1317E and Hole U1318B drilled by IODP Expedition 307) in Porcupine Seabight, southwest off Ireland, were measured to estimate the primary productivity (Pp) of the surface seawater in NE Atlantic. The results from the two holes commonly show relatively high Pp values of 10-30 g cm-2 ky-1, having stratigraphic cyclicity reversely correlated with the δ13C profile. The high Pp could be attributed to the oceanic setting controlled by the Eastern North Atlantic (Central) Water and Shelf Edge Current, which have been strongly influenced by the obliquity forcing of the Milankovitch cycle. A positive covariance was observed between high Pp and the mound development in U1317E, implying that the organic matter was the principal food source for the mound coral community. It is proposed that the pelagic marl matrix of the mound sediments provides information of the surface water productivity that is useful for reconstructing the paleoceanography and the paleoclimate in the NW Atlantic. 展开更多
关键词 primary productivity biogenic opal calcium carbonate QUATERNARY IODP 307 Porcupine Seabight North Atlantic
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