通过物理模拟实验对重力滑脱作用形成挤压性构造的可能性研究——以龙门山地区为例

Structural and Geophysical Modeling for the Extrusive Structure Formed by Gravitational Sliding Effect

构造物理模拟实验是地质学领域中一种重要研究手段。重力滑脱作用可能对于一些挤压性构造的形成起到了重要的作用。在龙门山前陆盆地,存在着大量的自晚三叠世以来的挤压性构造,根据前人所取得的勘探成果以及构造物理模拟实验,验证印支早期,龙门山地区经历由差异隆升所致的重力滑脱形成挤压性构造的可能性是存在的。

Structure physical simulation experiment is a very significant instrument in geology.There are important effects for the gravitational sliding in the formation of some extrusive structures.In Longmenshan basin,there are abundant existence of such structures which can be dated to the late Triassic epoch,according to the previous exploration and the results of the structure physical simulation experiment.It can be illustrated that the extrusive structures may be formed by the gravitational sliding effect.