开合构造环境下花岗岩体的构造样式与变形差异

基金项目: 国家自然科学基金项目《大别山中生代花岗岩体构造样式与变形序列研究》(编号:40172069)资助

Tectonic style and deformation difference of granite bodies in the opening-closing tectonic setting

摘要: 传统研究认为,大量花岗岩体的侵入发生于区域性伸展环境,是碰撞造山后应力松弛阶段侵位的,称之为造山后或非造山侵入体。近年来,对造山带和古岩浆弧的深入研究发现,花岗岩不但可以侵位于伸展构造环境,也可侵位于挤压构造环境(同构造侵入体),两者在三维空间形态、宏观尺度、露头尺度、显微尺度上的构造样式与变形往往是不同的。区分2类不同构造样式的岩体,对于分析区域构造和造山带演化有着重要的意义。
- 花岗岩体 /
- 构造样式 /
- 变形差异 /
- 开合构造
Abstract: Previous study maintained that large quantities of granite bodies were intruded in a regional ex-tensional environment.These granite intrusions were emplaced in post-collisional orogenic stress relaxation stage and so are called postorogenic or nonorogeni
- granitic intrusion /
- structural style /
- deformation difference /
- opening-closing tectonic