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华南武夷山地区广泛发育一套强烈韧性剪切变形的中、高级变质岩系,其新生矿物白云母非常普遍.对武夷山南麓政和县蝴碟街大理岩和北麓弋阳县慈竹片麻状花岗岩中的动力变质矿物白云母进行40Ar/39Ar法同位素测年,分别获得391±3Ma和421±8Ma的坪年龄值,以及385±5Ma和422±6Ma的等时线年龄值,时代相当于志留纪末到泥盆纪初.结合地质证据,认为武夷山地区存在过一期早古生代沉积作用和早古生代末期的构造热事件.至少有一期的强烈韧性剪切变形和糜棱岩化作用是该构造事件所导致
In Wuyishan area of southern China, a set of strong and ductile shear deformation middle- and high-grade metamorphic rocks are extensively developed, and its nascent mineral mica is very common. The 40Ar / 39Ar isotope dating of the mottled metamorphic minerals in granites resulted in plateau age values of 391 ± 3Ma and 421 ± 8Ma, and isochron age values of 385 ± 5Ma and 422 ± 6Ma, respectively Leaving the end of the record to the beginning of the Devonian.According to the geological evidence, it is thought that there existed an Early Paleozoic sedimentary and tectonic thermal event in the late Paleozoic in Wuyishan area, and at least one stage of strong ductile shear deformation and mylonitization is Caused by the construction event