CAJ | 학술논문

胶南-威海造山带荣成岩套花岗质片麻岩由闪长质片麻岩-石英闪长质片麻岩-英云闪长质片麻-一奥长花岗质片麻岩-花岗闪长质片麻岩-黑云二长花岗质片麻岩-二长花岗质片麻岩类组成，早期为TTG质花岗岩，晚期为二长花岗岩类。自早到晚存在明显的富钾演化特征。根据新的SHRIMPU-Pb锆石定年结果，该岩套早期闪长质片麻岩年龄为（741±10）Ma，英云闪长质片麻岩年龄为780-760Ma。晚期二长花岗质片麻岩年龄为760-714Ma。所以，可把荣成岩套花岗岩时代限定在800-700Ma之间（南华纪），其形成与华北克拉通岩石圈减薄有关。
효남-위해조산대영성암투화강질편마암유섬장질편마암-석영섬장질편마암-영운섬장질편마-일오장화강질편마암-화강섬장질편마암-흑운이장화강질편마암-이장화강질편마암류조성，조기위TTG질화강암，만기위이장화강암류。자조도만존재명현적부갑연화특정。근거신적SHRIMPU-Pb고석정년결과，해암투조기섬장질편마암년령위（741±10）Ma，영운섬장질편마암년령위780-760Ma。만기이장화강질편마암년령위760-714Ma。소이，가파영성암투화강암시대한정재800-700Ma지간（남화기），기형성여화북극랍통암석권감박유관。
Granitic gneisses in Rongcheng rock series of Jiaonan- Weihai orogen belt is composed of dioritic gneiss - quartz dioritic gneiss - tonalitic gneiss - trondhjemitic granitic gneiss - granodioritic gneiss - biotite monzonitic granitic gneiss -monzonitic granite. It is TTG granitoids in early period, while is monzogranite in the late period. It has obvious evolution characteristics of potassium - rich from early to late period. Ac- cording to new SHRIMP U- Pb zircon dating results, the age of dioritic gneiss in early period is （741± 10） Ma, and the age of tonalite gneiss is 780-760Ma. The age 714Ma. Therefore, the era tion has close relation with of Rongcheng rock series is limited lithospheric thinning of the North of adamellite gneiss in late period is 760 between 800-700Ma （Nanhua）. Its forma- China craton.