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迁安地区英云闪长质杂岩是部分熔融产生的岩浆沿迁西群与单塔子群两个变质地体之间的接触部位上侵形成的,经历了结晶分异作用演化,构造应力场对杂岩体有着重要影响,岩石学,地球化学等方面的特征反映着杂岩体的形成是该区太古代末期地壳活动中的重要地质事件之一.
In the Qian’an area, the Yingyun dioritic complex is partly melted by magmatic intrusion along the contact between the two metamorphic bodies of Qianxi Group and Shanzitazu Group. The evolution of crystallization differentiation, tectonic stress field It has an important influence on the complex bodies. The features of petrology and geochemistry reflect that the formation of complex bodies is one of the important geological events during the Late Archean crustal activities.