徐宿弧形构造外缘矿产资源赋存状态及强变形区应力场分析

Analysis on the occurrence state of mineral resources and stress field in the strong deformation area at the outer edge of xusu arc structure

徐宿弧形构造是主体褶皱与断裂轨迹平面上表现出一系列向北西西凸出的弧形。通过详细野外地质调查,讨论了研究区矿产资源赋存状态,运用构造应力场反演方法,研究徐宿弧东部强变形区形成的应力状态。结合区域构造背景得出,徐宿弧形构造变形是中国东部中三叠世至古新世末期区域构造运动的产物。

Xusu arc structure is a series of arcs protruding to the northwest on the plane of main fold and fault track.Based on the detailed field geological survey,the occurrence state of mineral resources in the study area is discussed,and the stress state formed by the strong deformation area in the east of xusu arc is studied by using the inversion method of structural stress field.Combined with the regional tectonic background,it is concluded that the xusu arc tectonic deformation is the product of the regional tectonic movement from the Middle Triassic to the end of Paleocene in eastern China.