华北陆台北部近千公里的麻粒岩带并非同为太古宙的同一地体，其东不含孔兹岩系的冀东地体是太古宙古陆，其西含古元古代孔兹岩的晋蒙高级区是吕梁期的碰撞带。孔兹岩系在鄂尔多斯古陆北缘和东缘周边分布，也在冀东古陆西缘分布，分别是两陆缘的古元古代沉积岩系，其间从晋蒙到五台则是太古宙～古元古代的洋弧沟盆系。华北陆台中段在太古宙时期并非为统一大陆，而是由西向东的陆－弹－陆的板块构造格局。晋蒙、吕梁、太行孔兹岩系的构造走向和夕线石线理一致为SW－NE向，不代表原始沉积方位，而是碰撞运动方向。两陆的碰撞可能从太古宙末期就已启动，于吕梁期渐进增强直至陆一陆合拢。碰撞缝合带上部形成的NW向褶皱山带已被剥蚀殆尽，现在出露的碰撞根部带则表现为孔兹岩系、洋壳物质、基底片麻岩三者相互近水平的剪切叠置和构造增厚，因此下地壳缝合带宽而不规则难以识别。据缝合线垂直于碰撞方向推断，原缝合线洋带应为NW向，但因造山带根部剪切不均匀而变位成“之”字形的南北向。以怀安－五台一线为界古元古代孔兹岩系于东西两侧对称分布，从北往南一致发育NW向的中元古代基性岩墙群，东西两侧不变质盖层分别为中上元古界和寒武系，表明从晋蒙到吕梁、五台、太行不但存在过NW向或近南北向的古山链，? Nearly a thousand kilometers of granulite belt in the northern part of North China are not the same as the Archean. The eastern part of the Jidong terrain that does not contain the Khondal series is Archean ancient land, Jin Meng Advanced Zone is Luliang period collision zone. The khondalites are distributed around the northern margin of the Ordos ancient continent and the eastern margin, and are also distributed along the western margin of the eastern part of the Jidong ancient continent. They are the Paleoproterozoic sedimentary rocks of the two continental margins, and from Archean to Mongolian to the Archean to Paleoproterozoic Ocean arc ditch basin system. In the Archean Age, the middle part of the Lütai of North China is not a unified continent, but a land-bounce-land plate tectonic pattern from west to east. The structural trend of the khondalites in the Jin-Meng, Luliang, and Taihang-Kondai rocks is consistent with the silliman lineage in the SW-NE direction and does not represent the original sedimentary orientation but the direction of collision. The collision between the two continents may have been initiated since the end of the Arctic, and gradually increased during Luliang until Lu and Lu were brought together. The NW fold fold belt formed at the upper part of the collision suture has been eroded away, and now the exposed collision root zone is characterized by the shearing overlap of the khondalite series, the oceanic crust material and the basic gneiss near each other And thickening of the structure, so the lower crust suture width and irregular identification difficult. According to the suture perpendicular to the collision direction inference, the original suture line should be NW NW, but due to uneven orbital shear shears into “zigzag” north-south. The Paleoproterozoic khondalite series are symmetrically distributed on both east and west sides of the Huai’an-Wutai frontier line. The Mesozoic basic mafic dikes are NW-trending uniformly from north to south, and the metamorphic cap rocks on both east and west sides are Middle and Upper Proterozoic and Cambrian, indicating that from Shanxi to Lvliang, Wutai, Taihang not only exists in the NW or near the north-south direction of the ancient mountain chain?