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在秦岭造山带中,以“秦岭”命名的“秦岭岩群”(秦岭杂岩)位于秦岭造山带的核心地带(图1),详细记录了秦岭造山带早期的地壳形成与演化历史。秦岭岩群是一套中-深变质基底杂岩系,变质程度达角闪岩相-麻粒岩相,并伴有强烈的混合岩化作用,主要的变质变形特征为韧性剪切带及深层塑性流变,岩石主要由碳酸盐岩沉积建造和成熟度低的陆源碎屑杂砂岩组成,且夹有少量火山岩(张国伟等,
In the Qinling orogenic belt, the “Qinling Group” (Qinling Complex) named “Qinling” is located in the heart of the Qinling orogen (Figure 1) and records the formation and evolution of the early crust in the Qinling orogen history. The Qinling Group is a medium-deep metamorphic basement complex with metamorphism up to amphibolite facies-granulite facies accompanied by intensive mixed lithification. The main metamorphic deformation features are ductile shear zones and deep layers Plastic rheology, the rock is mainly composed of carbonate sedimentary and low maturity of terrestrial debris sandstone composition, and a small amount of volcanic rocks (Zhang Guowei,