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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
10000569/ 2017/ 033(11)363558 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
20170621 收稿,20170928 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 spatialtemporal
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)mainlyformedtheItypegranitoids,andthelate stageof early period (160~
145Ma)formed the Itype and Stype granitoids,and the early stage of late period (145 ~125Ma)mainly formed Stype granitoids
(began to form Atype granitoidsafter 136Ma),late stageof lateperiod (125~100Ma)mainlyformedAtype granitoids Dongxiang
,
Dexing Itype granitoids belt as a magma activities center the study area of intermediateacidic magmas had experienced a evolution
,
processfro
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