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构造填图及剖面研究揭示了恒山中南部“绿岩带”实为变基性岩墙群强烈剪切、构造置换的产物,它们明显侵入于新太古代灰色片麻岩内及高压麻粒岩区.恒山高压麻粒岩区产状平缓,向南逐渐被产状陡立变基性岩墙群侵位.变基性岩墙的侵位明显晚于高压麻粒岩相变质事件,形成于伸展构造环境并经历后期走滑剪切变形.锆石同位素年龄研究表明,恒山中南部的变基性岩墙侵位于（2499±4）～（2512±3）Ma之间,并经历后期构造-热事件的影响.恒山南部-五台山区新太古代末期变基性岩墙群的发现,进一步证实这一时期华北中北部经历伸展构造热事件,提供了划分太古宙/元古宙界限的构造-岩浆活动事件标志,及华北与其他大陆早期构造演化对比的基本线索.
Tectonic mapping and profile studies revealed that the “greenstone belt” in the central and southern part of Hengshan is the product of intense shear and tectonic replacement of the metamorphic dyke swarms, which obviously intruded into Neoarchean gray gneiss and high-pressure granulite The Hengshan high-pressure granulite area is gentle in shape and is invaded to the south by the steeply-rising metamorphic dyke swarms.The emplacement of the metamorphic dyke wall is obviously later than that of the high-pressure granulite facies metamorphism and is formed in the extensional structure Environment and experienced later strike-slip shear deformation.Studies on isotopic age of zircon indicate that the metamorphic rock wall in central-southern Hengshan is intruded between (2499 ± 4) ~ (2512 ± 3) Ma and experienced post-tectono-thermal events The discovery of the metamorphic dyke swarms in the southern part of Hengshan-the late Neo-Archean in Wutai Mountain area further confirms that during this period North-Central North China experienced tectonic-thermal events and provided tectono-magmatic activities that divide the Archean / Proterozoic boundaries Event signs and the basic clues of the contrast between the tectonic evolution of North China and other continents in the early stage.