钦杭成矿带东段燕山期中酸性岩浆活动时空演化与成矿规律-岩石学报.PDF

钦杭成矿带东段燕山期中酸性岩浆活动时空演化与成矿规律-岩石学报.PDF

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钦杭成矿带东段燕山期中酸性岩浆活动时空演化与成矿规律-岩石学报

10000569/ 2017/ 033(11)363558 Acta Petrologica Sinica  岩石学报 钦杭成矿带东段燕山期中酸性岩浆活动时空演化与  成矿规律  吕劲松张雪辉孙建东张勇武彬骆学全          LVJinSong ZHANGXueHui SUNJianDong ZHANGYong WU Bin and LUOXueQuan , , , ,   210016 中国地质调查局南京地质调查中心,南京 Nanjing Geological Survey Center,China Geological Survey,Nanjing 210016,China 20170621 收稿,20170928 改回 Lv JS,Zhang XH,Sun JD,Zhang Y,Wu B and Luo XQ 2017 Spatiotemporal evolution and metallogenic regularity of felsic rocks in the Yanshanian of the eastern segment Qinhang metallogenic belt,South China Acta Petrologica Sinica,33 (11):3635-3658 Abstract    The eastern segment of the Qinhang metallogenic belt is located at the junction of the Huaxia block and the Yangtze , , block and its special tectonic setting has created its unique magmatic event and mineralization In this paper the spatialtemporal evolution and metallogenic regularity of felsic rocks in Yanshanian are summarized It is concluded that the Yanshanian magmatic activities,in the eastern segment of Qinhangmetallogenicbelt,werecontinuousandcanbedividedinto“twoperiodsdividedintofour stages”:The early stageof early period (180~160Ma)mainlyformedtheItypegranitoids,andthelate stageof early period (160~ 145Ma)formed the Itype and Stype granitoids,and the early stage of late period (145 ~125Ma)mainly formed Stype granitoids (began to form Atype granitoidsafter 136Ma),late stageof lateperiod (125~100Ma)mainlyformedAtype granitoids Dongxiang , Dexing Itype granitoids belt as a magma activities center the study area of intermediateacidic magmas had experienced a evolution , processfro

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