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晋北－冀西北高级变质的灰色片麻岩－花岗质片麻岩杂岩基底内广泛发育晚太古代高压麻粒岩构造透镜体或岩片，几个典型地段的构造填图研究表明，高压麻粒岩主要出露于龙泉关－桑干构造带的东北段，即冀北陆缘活动带与恒山－五台绿岩带之间的高级变质基底内。高压麻粒岩形成与出露的过程中，主要经历４期构造变形：Ｄ１低角度逆掩剪切变形；Ｄ２ＮＷ向伸展作用；Ｄ３区域规模的ＮＮＥ－ＮＥ向褶皱；Ｄ４大规模右旋走滑剪切变形。以上变形明显受区域构造所控制，先后涉及鄂尔多斯和阜平陆块晚太古代构造拼合，太古代末五台裂谷的张开及闭合，以及早元古代冀北陆缘活动带向南俯冲造成的掀斜作用。
The Late Archean high-pressure granulitic tectonism or lithofacies was extensively developed in the basement of the high-grade gray gneiss-granitic gneiss in the North of Shanxi and Northwestern Hebei Province. The tectonic mapping of several typical sections showed that high pressure The granulite is mainly exposed in the northeastern segment of the Longquanguan-Sanggan tectonic belt, that is, the high-grade metamorphic basement between the Hebei-Hebei continental margin and the Hengshan-Wutai greenstone belt. During the formation and exhumation of high-pressure granulite, it mainly experienced four tectonic deformations: D1 low-angle reverse-cover shear deformation, D2NW direction extension, NNE-NE fold of D3 area, D4 large-scale right-lateral strike-slip Shear deformation. These deformations were obviously controlled by the regional structures, involving successively the late Archean tectonic assemblage of Ordos and Fuping blocks, the opening and closing of the late Cretaceous Rift and the southward subduction of the Early Mesoproterozoic Jibei continental margin Tilt effect