%0 Journal Article
%T Fluid Inclusions of Qinglongshan ultrahigh pressure metamorphic eclogite and fluid evolution, north Jiangsu province, China<br>苏北青龙山超高压变质榴辉岩流体包裹体特征与流体演化
%A ZHAI Wei
%A SUN XiaoMine
%A XU Li
%A ZHANG ZeMing
%A LIANG JingLong
%A LIANG YeHeng
%A SHEN Kun
%A <br>翟伟
%A 孙晓明
%A 徐莉
%A 张泽明
%A 梁金龙
%A 梁业恒
%A 沈昆
%J 岩石学报
%D 2005
%I 
%X Based on its chemical composition and distribution textural characteristics, five types of fluid inclusions have been distinguished in Qinglongshan Ultrahigh Pressure (UHP) metamorphic eclogites, they are N2-riched fluid inclusions, high-salinity (22.4 to slitely more than23.2wt%NaCl) , moderate-high-salinity(12.6-16.0wt% NaCl) , medium-salinity(6.4-10. 5wt% NaCl) and low-salinity(3. 3-0. 2wt% NaCl) aqueous inclusions. The N2-riched fluid inclusions were trapped during the peak of UHP metamorphism, the high-salinity aqueous inclusions formed during the early stage of exhumation with solid mineral exsolutions, the moderate to high-salinity during high-pressure metamorphic recrystallization, the medium salinity during amphibolite-face retrograde stage, and the low-salinity aqueous inclusions during greenschist-facies metamorphism of the latest stage of uplift. The N2 -riched fluid inclusions present in the peak of UHP metamorhpism and those with high-salinity and moderate to high-salinity during the early stage of exhumation were inherited from the fluids in protoliths by decomposition of NH4 -bearing minerals (or organics) and exsolution of struturally-bound water ( hydroxyl) in nominally anhydrous minerals. The medium-salinity fluids during the late-stage amphibolite-facies meatmorphism were externally-derived in addition to the exsolution of hydroxyl in nominally anhydrous minerals, the low salinity fluids during greenschist facies metamorphism were mainly derived from external source.
%K Qinglongshan
%K Ultrahigh-pressure metamorphism
%K Eclogite
%K Fluid inclusion<br>青龙山
%K 超高压变质作用
%K 榴辉岩
%K 流体包裹体
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=2013B5467E3054B1614CEC199353FCED&aid=F32E37DAD14FFC8D&yid=2DD7160C83D0ACED&vid=659D3B06EBF534A7&iid=0B39A22176CE99FB&sid=BE5DBC360CD4FFB9&eid=8CE1095CD639AEF4&journal_id=1000-0569&journal_name=岩石学报&referenced_num=9&reference_num=39