The Paleoproterozoic Jiao-Liao-Ji Orogenic Belt provides key evidence of evolution from an early rift-basin (or back-arc basin) to final collision of the Longgang block (Eo-Meso Archean granitic gneiss) and the Nangrim block in the Liaodong peninsula, northeastern North China Craton. A structural investigation of schists and phyllites in the Langzishan Formation of the North Liaohe Group reveals two new major structures: (1) a sub-horizontal nappe on Meso-Archean granitic gneiss belonging to a ~ 1.95–1.9 Ga Paleoproterozoic D_1-2 fold-thrust system produced by terminal collision; From the south basin to the north basement, the metamorphic gradient transferred from greenschist facies metamorphism into amphibolite facies produced by crustal thickening in the Paleoproterozoic orogenesis; the intensity of deformation was also increasing from south to north, the pure shearing style changed into simple shearing. (2) A metamorphic core complex (The Gongchangling metamorphic core complex) formed during Cretaceous extension and doming enabled delamination and diapiric rise and exhumation in the core complex. This extensional-delamination event affected a wide area of the orogenic belt, as part of the delamination of the northeastern half of the North China Craton. This is the first example of the Paleoproterozoic thrust-nappe tectonics exhumed and preserved by Cretaceous diapirism in northeast China.

古元古代的焦辽纪造山带提供了从早期裂谷盆地（或后弧盆地）到龙岗区块（Eo-Meso太古花岗岩麻片麻岩）和辽东半岛南缘区块最后碰撞的演化的重要证据。 ，华北克拉通东北部。辽河北组郎子山组片岩和层晶的结构研究揭示了两个新的主要结构：（1）中—Archean花岗岩片麻岩上的一个水平下的推覆，属于〜1.95-1.9 Ga古元古代D _1-2终端碰撞产生的折叠推力系统；从南盆地到北基底，变质梯度从绿片岩相变质转变成古元古代造山作用中地壳增厚产生的闪石岩相。变形强度也由南向北增加，由纯剪切方式转变为简单剪切。（2）在白垩纪伸展和隆起过程中形成的变质岩心复合体（共长岭变质岩心复合体）使该岩心复合体发生了层离，底辟上升和发掘。作为华北克拉通东北半部剥离的一部分，这一伸展-剥离事件影响了整个造山带。