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河北平山西北部小觉地区新太古代阜平岩群中表壳岩类的浅粒岩、黑云变粒岩、斜长角闪岩、角闪片麻岩等,在构造有利部位及高温高压条件下经受了有流体活动伴生的深熔作用(Anatexis)改造,形成了一系列区域混合岩类,包括不同程度的混合岩化岩石、混合岩、甚至混合花岗质岩石(程裕淇等,1996,1998,1999,2001).
In the Neogene Archean Fuping Group in Xiaogu Area, northwestern part of Pingshan, Hebei Province, shallow-grained rock, biotite granulite, amphibolite, hornblende gneiss in the crustal rocks, Underwent an Anxaxis transformation accompanied by fluid activities to form a series of regional mixed rocks, including mixed rocks, mixed rocks and even mixed granitic rocks (Cheng Yuqi et al., 1996, 1998 , 1999, 2001).