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苏鲁超高压变质带是世界上研究陆一陆碰撞俯冲和壳幔作用的最佳地质场所之一．为了解超高压变质带岩石的形成、折返和相应的动力学过程，必须了解该区的地壳和浅地幔构造．本文介绍了该区北部的地质情况和进行深反射地震调查取得的成果，包括（１）在五莲─青岛断裂南侧超高压变质岩片向北倾斜，呈现叠复组构，反映岩片的折返；（２）根据地震资料推测在１４６Ｍａ前后胶南地块的隆升一伸展构造内幕；（３）超高压变质岩片厚约１２ｋｍ，由于含有大量相辉岩透镜体，地震波速高达６．８─７．３ｋｍ／ｓ；（４）莫霍面附近有许多楔形反射体，反映陆一陆碰撞；（５）石门地区７ｋｍ深处存在高波速的强反射体，可作为在该区进行大陆科学钻探的候选场址．
The Sulu UHP metamorphic belt is one of the best geological places in the world for studying the collision-subduction and crust-mantle action of Lu-Lulu. In order to understand the formation, reentry and corresponding dynamic processes of UHP metamorphic belt rocks, it is necessary to know the crust and shallow mantle structure in this area. This paper introduces the geological conditions in the northern part of the area and the results of deep reflection seismic surveys, including (1) the ultrahigh-pressure metamorphic rocks on the south of Wulian-Qingdao fault slopes northward, showing a superimposed structure and reflecting the reentry of rock fragments; (2) According to the seismic data, it is inferred that the uplift-extension structure of the Jiaonan block was located before and after 146 Ma; (3) The ultrahigh-pressure metamorphic rock slice is about 12 km thick. Because of the large amount of facies lenses, the seismic velocity is up to 6.8-7. 3km / s; (4) There are many wedge-shaped reflectors near the Moho surface, which reflect the collision of Lu and Lu; (5) Strong reflectors with high wave velocity at depth of 7km in Shimen area can be used as candidates for continental scientific drilling in this area Site.