根据文献资料及对研究区8条实测剖面资料的综合分析结果表明,Columbia超级大陆的裂解导致华北陆块北缘大陆裂谷盆地的形成.随着大陆进一步伸展和洋壳的形成,华北地块北缘逐渐发展为被动大陆边缘.在1400 Ma左右,即铁岭组沉积后,华北地块北缘转变为活动大陆边缘.早期洋壳向华北地块低角度的俯冲造成弧后地区发生挤压(芹峪上升),导致铁岭组抬升和剥蚀,而后期洋壳高角度的俯冲又造成弧后区域发生强烈的伸展和断陷,沉积了下马岭组,并伴随辉绿岩的侵入.华北地块与相邻地体之间的碰撞导致下马岭组的抬升(或蔚县抬升)以及碰撞花岗岩的形成,挤压构造发生的时间对应于Rodinia超级大陆的形成期.新元古代沉积是Rodinia超级大陆裂解的结果.龙山组石英砂岩和海绿石砂岩是Rodinia超级大陆裂解后的最早期沉积,记录了海侵初期的超覆过程.

The formation of continental rift basin in the northern margin of the North China block is caused by the breakup of the Columbia supercontinent according to previous study and analysis of our eight measured sections. Due to the continued crustal extension and creation of oceanic crust, the northern North China block involved into a passive continental margin, which then turned into an active margin around 1400 Ma after the deposition of the Tieling Formation. The low-angle subduction of the oceanic crust beneath the North China block resulted in a compression environment in the back-arc area (Qinyu Uplift), thus leading to the uplift and erosion of the Tieling Formation. Presumably, high-angle subduction of the oceanic crust followed, and caused intense rifting and deposition of the Xiamaling Formation accompanied by the intrusion of diabase dykes. The uplift of the Xiamaling Formation (or Yuxian Uplift) was related to the collision between the North China block and the adjac

祁连造山带乐都一带上三叠统南营儿组砂岩的主量、微量及稀土元素构造背景主要显示为大洋岛弧和被动大陆边缘。物源主要来自被动大陆边缘和大洋岛弧,被动大陆边缘可能是其物源的主要组成部分。沉积母岩为花岗岩,经历了较强的化学风化过程。沉积物受北部卷入北祁连造山带大陆岛弧和主动大陆边缘物质影响,具被动陆缘和主动陆缘兼具的构造背景。碎屑成分具大陆和造山带双向来源的二元物源供给特点。盆地经历了复理石阶段向磨拉石阶段的转变,属典型前陆盆地。盆地古水体处于缺氧、还原环境,有利于有机质的保存。煤线的存在为煤炭的形成提供了可能,显示较好的找煤前景。

The analysis of major,trace and rare elements of sandstones in the Nanyinger formation of the upper Triassic in Ledu area,Qilian orogenic belt, have been studied by analyzing the detrital minerals.The result s suggest that the tec-tonic setting is oceanic island arc and passive continental margin ,the provenance is oceanic island arc and passive conti-nental margin,while passive continental margin was mainly provenance. Its mother-rock was granite which suffered a strong chemical weathering process.It is the effects of continental island arc and active continental margin material from North-Qilian orogenic belt being involved in deposition process that the sediment has the double tectonic background of passive continental margin and active continental margin,and Clastic constituents shows the dual sources characteristics. It is a typical foreland basin which experienced the stage from flysch stage to molasse stage.Ancient water from the basin was hypoxia, reducing environment which adv

随着两岸关系的发展,两岸媒体间的交流也越来越多,台湾电视综艺节目中关于大陆的话题和大陆形象的塑造也成为人们关注的热点,研究发现,台湾电视综艺节目中存在不少对大陆的误读的现象,本文结合台湾的政治经济文化生活,从媒体自身的生存与运作规律、民众的收视心理和社会文化以及两岸之间的交流困境等不同角度探讨了这种误读现象出现的原因,以期能对两岸节目的交流和大陆对台传播等方面有所启示。

With the development of cross-strait relations, media on both sides of the Taiwan straits started communication also more and more. Taiwan television variety show about the topic of China mainland and image has become the focus of hot spots, the study found that Taiwan TV variety shows have some misreading phenomenon on mainland China, In this paper, combined with Taiwan''s political, economic and cultural life from the survival and the operating rules of media itself, people''s viewing psychology and social culture and communication difficulties between the two sides are discussed by different this misreading phenomenon comes. In order to program communication on both sides of the Taiwan and the mainland to Taiwan spread some enlightenment.

通过对大陆和港澳地区幼儿园体育教学现状的研究探讨,总结和分析大陆地区和港澳地区幼儿园体育教学的特点,分析港澳两地幼儿体育教学与大陆之间的联系与区别,找出大陆地区幼儿体育教学存在的不足,并结合港澳两地幼儿体育教学特点,对大陆地区幼儿体育教学提出相应的改善意见,以促进大陆幼儿体育教学事业的发展.

Through the mainland and Hong Kong and Macao regions nursery school sports teaching present situation research, summarize and analysis the characteristics of the mainland and Hong Kong and Macao regions kindergarten sports teaching,analysis the difference between preschool physical education from Hong Kong and Macao and the mainland,find out the deficiency existing in mainland area preschool physical education. Combining with the characteristics of sports teaching from Hong Kong and Macao , put forward the corresponding improvement suggestions for the mainland area children sports education to promote the development of mainland children sports education career.

潟湖是重要的海岸湿地类型，具有丰富的自然资源和独特的生态功能。近几十年来，我国的海岸潟湖遭到了极大破坏，因此，开展我国海岸潟湖遥感监测与分析具有重要意义。本文根据1979年、1990年、2000年和2010年的4期共102景多时相遥感影像数据，利用遥感和地理信息系统等技术方法对我国大陆海岸潟湖进行了遥感监测，首次调查统计了我国大陆海岸潟湖的名称、数量、分布、岸线长度和面积信息，并对近31年来我国大陆海岸潟湖的变迁状况进行了分析。结果表明，1979年我国大陆海岸潟湖共计251个，近31年，共消失19个潟湖，其中辽宁省消失15个，广东省消失3个，广西壮族自治区消失1个；1979年我国大陆海岸潟湖岸线总长度为2692.26 km ，总面积为1092.8055 km2，至2010年我国大陆海岸潟湖岸线总长度共减少337.80 km ，潟湖总面积共减少204.103 km2；31年间，我国大陆海岸潟湖的岸线长度和潟湖面积总体均处在持续减少的状态，各省（自治区）也基本符合该规律；1979－2010年间，我国大陆海岸潟湖大部分处在老年期，死亡期潟湖消失19个。

The lagoon ,one of the most important types of coastal wetlands ,provides abundant natural resources and unique ecological functions .In recent years ,coastal lagoons in China have been greatly damaged .Therefore ,remote sensing monitoring and analysis of it is of great significance .According to a total of 102 scenes of multi‐temporal remote sensing image data in 1979 ,1990 ,2000 and 2010 ,the paper monitored the coastal lagoons in the mainland of China with remote sensing and geographical information system techniques . The name ,quantity ,distribution , shoreline length and area information of coastal lagoons were surveyed for the first time .Also ,the evolutions of coastal lagoons in mainland China in recent 31 years were analyzed .The results showed that ,there were 251 coastal lagoons in mainland China in 1979 ,but a total of 19 lagoons disappeared in the last 31 years ,among which are 15 of Liaoning province ,3 of Guangdong Province and 1 of the Guangxi Autonomous Reg