Key;
Laboratory;
of;
Lithospheric;
Evolution,;
Institute;
of;
Geology;
and;
Geophysics,;
Chinese;
Academy;
of;
Sciences,;
Beijing;
100029,;
China;
Key;
Laboratory;
of;
Continental;
Dynamics,;
Department;
of;
Geology,;
Northwest;
University,;
Xi'an;
710069,;
China;
科马提岩; 中国西北部; 同位素组成; 形成年龄; 固阳县; 绿岩带; 克拉通; 新太古代;