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出露于河北省迁安曹庄—白龙港一带的太古代变质杂岩由变质岩和花岗质岩石组成。变质岩有迁西群的松汀组(以麻粒岩相岩石为主)、黄柏峪组(退变质角闪岩相和残留的麻粒岩相岩石)及滦县群(角闪岩相岩石)。其上覆中元古代长城系。花岗质岩石可分为5类:紫苏花岗岩,花岗岩-花岗闪长岩(灰色花岗岩)、岩席状微斜长石花岗岩(红色花岗岩)、黑云母花岗岩和石英二长岩。它们是两个岩浆旋迴的产物:中晚太古代(>2700Ma)形成紫苏花岗岩;晚太古代—早元古代(2600—2300Ma)形成后4类花岗质岩石。其成因为部分熔融(紫苏花岗岩、灰色花岗岩)、混合交代(红色花岗岩)和岩浆侵入 (黑云母花岗岩、石英二长岩)。
The Archean metamorphic complexes exposed in Caozhuang-Bailonggang, Qian’an, Hebei Province consist of metamorphic and granitic rocks. The metamorphic rocks are Songting Formation (dominated by granulite facies) in Qianxi Group, Huangbaoyu Formation (retrogressive amphibolite facies and residual granulite facies rocks) and Luanxian Group (amphibolite facies rocks ). Its over the Zhongyuan ancient Great Wall. Granitic rocks can be divided into five categories: perilla granite, granite-granodiorite (gray granite), mafic-like plagioclase granite (red granite), biotite granite and quartz monzonite. They are the product of two magmatic cycles: Permian granites were formed in the late Archean (> 2700 Ma) and four types of granitic rocks in the Late Archean-Early Proterozoic (2600-2300 Ma). The causes are partial melting (peridotite, gray granite), mixed metasomatism (red granite) and magmatic intrusion (biotite granite, quartz monzonite).