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地质部562综合大队于1978年首先在蓟县发现长城被错断,在此基础上我们重新进行了观察。黄崖关活动断裂位于蓟县城北27公里,是一条近南北向断裂,形成于中生代末期,其总体走向为北10°—15°东,全长10公里左右。在卫片上有明显折线状的灰白色条带。在地貌上形成沟谷。 本断裂发育在震旦亚代地层之中,在周庄—下营附近沿断裂向北追索,见到岩层受强烈挤压,使地层呈倒转及直立现象。断面上有近于水平的擦痕及平行断面的破劈理。带内见有角砾岩,钙质胶结,砾石成份单一;此外还有很厚的以钙质成份为主的黑色物质。
The General Brigade of the 562 General Geological Department discovered in 1978 that the Great Wall was first broken in Jixian County and on this basis we re-observed. Huangyaguan activity fault is located 27 kilometers north of Jixian County, is a nearly north-south fault, formed in the late Mesozoic, the overall direction of the north 10 ° -15 ° east, total length of 10 km. In the patch there is a clear line-shaped gray band. Geomorphological formation of valleys. The fault was developed in the Sinian strata and was traced northwards along the fault near Zhouzhuang-Xiaying. The rock formation was strongly crushed, causing the formation to reverse and upright. Section near the level of scratches and parallel section broken cleft. Belt see the breccia, calcareous cement, a single gravel; In addition there is a thick black calcium-based ingredients.