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冀东太古宙高级区主要由两个构造单元组成,以三屯营-洒河-金厂峪一线为界,北西侧为线性构造区,南东侧为卵形构造区。卵形构造是由紫苏花岗岩固态气球膨胀侵位形成的,之后又受到深部构造相韧性变形带的叠加,使卵形构造由东到西受改造的程度逐渐增大。线性构造则是中部构造相韧性变形带对深部构造相和卵形构造叠加的结果。尽管冀东地区南东、北西分异早于3563Ma,但卵形构造区和线性构造区出现相对较晚(2500Ma)。
The Jidong Archean high-level zone is mainly composed of two tectonic units, with the boundary of Sandunying-Xialu-Jinchangyu line as the boundary, the northwest side as a linear tectonic zone and the south-east as an oval-shaped tectonic zone. The ovoid structure is formed by the expansion and emplacement of the solid balloons of perillae granite and then superimposed by the ductile deformation belts of the deep tectonic facies, increasing the extent of the ovoid structure being reformed from east to west. The linear structure is the result of superposition of deep tectonic facies and ovoid tectonic deformation zone in the middle tectonic facies. Although the east and northwest divergence of Jidong area was earlier than 3563Ma, the relatively late (2500Ma) appeared in the oval and linear tectonic zones.