【摘 要】
：
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
【机 构】
：
Faculty of Earth Sciences,China University of Geosciences,Wuhan,China
【出 处】
：
The International Conference on Continental Dynamics(2014年大陆
论文部分内容阅读
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 from the Weihai-Rongcheng migmatites in the Sulu ultra-high pressure (UHP)metamorphic terrane,eastern China.The leucosome is millimetric to centimetric in thickness and mainly consists of K-feldspar + quartz + plagioclase.The pegmatitic vein emplaces along the compositional layers or crosscuts them and is mainly composed of K-feldspar + quartz.These features provide compelling evidences for partial melting and melt segregation of crustal anatexis.
其他文献
The Qinling orogenic belt (QOB) is bound by the Luonan-Luanchuan-Fangcheng fault to the north and the Mianlue suture to the south.The North Qinling belt (NQB) and South Qinling belt (SQB) are separate
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
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
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
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
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
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
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
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
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