作为全球最大规模的非碰撞型活动造山带，现代安第斯造山带以其巨厚的陆壳、高耸的地貌、强烈的地震、大量的钙碱性岩浆活动及多金属成矿作用为特征。但由于目前可获得中-下地壳侵入岩、变质岩及构造岩样品很少，对于安第斯造山带中-下地壳构造变形、热状态及其在地壳加厚及地表抬升方面作用的认识还不清楚。本申请选择中地壳侵入岩及变质岩出露较为广泛的华北地块北缘晚古生代安第斯型造山带为例，采用“以古论今”的思路，拟通过横穿陆缘弧及弧后前陆盆地的构造-岩石剖面，采用构造解析、岩石学、Ar-Ar热年代学与温压计算等多学科方法，研究华北地块北缘晚石炭世-三叠纪早期中地壳岩石（包括晚古生代侵入岩及早前寒武纪基底变质岩）的构造变形及冷却历史。这些问题的解决对于正确认识安第斯型活动大陆边缘演化深部构造变形、热状态、流变学特征及地壳加厚及抬升机制均具有非常重要的科学意义。

As the world's largest non-collisional active mountain belts, the Central Andes is characterized by extremely thick continental crust, high-relief topography with 350~400 km wide plateau, strong earthquakes, large volumes of calc-alkaline magmatism and metallic mineralization. Due to difficulties in obtaining the mid-lower crustal magmatic, metamorphic and tectonite samples in the Andes moutains, the mid-crustal thermal regime, deformation and their roles in the crustal thickening and surface uplift processes of the Andes orogenic belt are still poorly understood. As a typical Andean-type orogenic belt during the Late Paleozoic, the mid-crustal plutons and metamorphic rocks are well exposed in the Inner Mongolia Paleo-uplift in the northern margin of the North China block as revealed by recent geothermobarometrical results. Because the past is the key to the present and the future, this proposal uses the northern margin of the North China block as an example for studying the mid-crustal thermal regime and deformation beneath the Andean-type orogenic belt. In this research, multiple methods including structural geology, igneous petrology, Ar-Ar thermochronometry and geothermobarometry will be used to study Late Carboniferous to Permian mid-crustal dioritic-granitic plutons and metamorphic basement rocks along the three structure-lithology sections across the continental arc and the northern part of the retroarc forland basin. The results are of great significance for understangding the mid-crustal deformation, thermal regime, rheology and mechanism and processes of crustal thickening and surface uplift Andean-type continental margins.