Geochronology, geochemistry and tectonic implications of granites in Gangchadasi area from Qinghai p

来源 :The International Conference on Continental Dynamics(2014年大陆 | 被引量 : 0次 | 上传用户:seanyx
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The South Qilian block is located in the northeast part of the central continent orogenic system,which belongs to the continental tectonic knot in WN China.The block was cut off by Altyn fault in the northwest part,adjacent to the North Qaidam and Alxa in the Southern and northern part respectively,and nearby the West Qinling in the eastern.The block is the key part of the SN trending tectonic belt of central continent orogenic system,which is also the transition and conversion belt of the formation and uplift in the Tibetan plateau since Mesozoic and Cenozoic.
其他文献
Xishan Coalfield,Shanxi,is located in the central part of Trans-North China Craton.The coalfield is composed of the Taiyuan,Shanxi,Xiashihezi,Shangshihezi,Shiqianfeng,Liujiagou,Heshanggou and Ermaying
会议
The Jiangnan belt is a collisional suture between the Yangtze and Cathaysia Blocks in South China.Our investigations suggest that some Neoproterozoi mafic-ultramafic blocks and granitoids are exposed
会议
Paleozoic strata are widespread in the Xishan Coalfield,Shanxi,the central part of Trans-North China Craton.The coalfield is composed of the Cambrian - Middle Ordovician epicontinental carbonate sedim
会议
Southern India - Sri Lanka - East Antarctica region,which corresponds to a part of the East African - Antarctic Orogenic Belt formed by complex subduction-accretion-continent tectonic events related t
会议
The Earth System may be constructed of two daughter systems in geotectonic signi- ficance:Surface and Near-Surface System (or Bio-Sedimentary System,BSS) with inclusion of ocean and continent basic te
会议
Qaidam basin is situated in the northeast margin of Qinghai-Tibet Plateau.Because of the intracontinental orogenic process of Qilian orogenic belt,the Northern Qaidam Basin had undergone complexity in
会议
The Qinling Orogenic Belt (QOB) was constructed by subduction and collision of the North China Craton (NCC) with South China Craton (Zhang et al.,2001).As an important part of the QOB,the southern mar
会议
Detrital zircon U-Pb geochronology analysis is a powerful tool to trace sedimentary system,explore the mountain uplift and denudation processes,reconstruct palaeogeographic pattern and reveal the evol
会议
Direct determination of hydrothermal mineral age to get accurate chronology of hydrothermal ore-forming event,has been the geologists dream.One of the most important problems in theoretical research i
会议
In order to investigate partial melting and partial melt evolution during exhumation of the deeply subducted continental crust,we carried out a combined study on layered leucosome and pegmatitic vein
会议