Institute;
of;
Geology,;
Chinese;
Academy;
of;
Geological;
Sciences,;
Beijing;
100037,;
China;
Institute;
of;
Geology;
and;
Geophysics,;
Chinese;
Academy;
of;
Sciences,;
Beijing;
100029,;
China;
Beijing;
SHRIMP;
Center,;
Beijing;
100037,;
China;
玄武安山岩; 五台山地区; 华北克拉通; 古元古代; 滹沱河; SHRIMP; 同位素测年; 中国;