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根据该地学断面Vp结构模型,造山带中基性火成岩、金伯利岩和花岗岩中的深源包体资料,以及火成岩和变质岩,特别是超高压变质岩和超基性岩的分布和组成所揭示的壳幔深部组成的信息,结合与相对应的岩石实验Vp数据的对比,建立了秦岭洛阳-伊川-十堰-秭归地学断面及邻区的岩石圈组成的岩石学模型。这一岩石学模型表明,华北与扬子克拉通,南北秦岭造山带与其克拉通的过渡带岩石圈的岩石学模型各不相同。华北克拉通下地壳是以麻粒岩相中酸性片麻岩和紫苏花岗岩为主,同时含有基性麻粒岩,而扬子克拉通的下地壳是以角闪岩相-麻粒岩相酸性片麻岩和TTG为主体,广泛存在基性火成岩层。南北秦岭造山带的中下地壳各自继承了扬子和华北克拉通的中下地壳的特点,但已被强烈改造;南北秦岭造山带上地幔组成差异性较大,北秦岭上地幔上部以榴辉岩及榴闪岩为主,而南秦岭以蛇纹石化橄榄岩为主体,各单元100km以下的地幔都是一样的,都是石榴石二辉橄榄岩组成。因此,秦岭造山带是一个具有近30亿年历史的由不同大陆块体拼合组成的,不具简单的岩石圈分层结构样式。
Based on the Vp structural model of the geoscience section, the deep-sourced inclusions in the basic igneous, kimberlite and granite in the orogenic belt, as well as the distribution and composition of igneous and metamorphic rocks, especially the ultrahigh-pressure metamorphic and ultrabasic rocks Based on the information of the deep crust and mantle, the lithology models of the lithospheric composition of the Luoyang-Icheon-Shiyan-Zigui geochronological section and its adjacent area in the Qinling Mountains are established based on the comparison with the corresponding Vp data of the rock experiment. This petrological model shows that the petrological models of the lithospheric lithosphere in the North China and Yangtze Craton, the North-South Qinling orogen and their craton are different. The lower crust of North China Craton is dominated by the acidic gneiss and peridotite granulite facies and contains basic granulite, whereas the lower crust of the Yangtze craton is characterized by amphibolite facies - granulite facies acidity Gneiss and TTG as the main body, there are widespread basic igneous rocks. The middle and lower crusts of the Qinling orogenic belt in the north and south China inherited the characteristics of the middle and lower crusts of the Yangtze and North China cratons, respectively, but have been greatly altered. The composition of the mantle beneath the Qinling orogenic belt in the north and south is quite different. And mainly composed of garnet, whereas the South Qinling is dominated by serpentinized peridotites. The mantle below 100 km in each unit is the same, and is composed of garnet lherzolite. Therefore, the Qinling orogenic belt is a nearly 3 billion-year-old assemblage composed of blocks of different continents, with no simple layered structure of lithosphere.