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东喜马拉雅南迦巴瓦构造结的构造格局主要由两类不同的构造形式组成,一类为早期韧性挤压、走滑变形体系,表现为构造结内部的近南北向缩短、西边界的左行走滑和东边界的右行走滑,可能是印度与欧亚大陆碰撞后,印度大陆向欧亚大陆的楔入所致,其变形变质峰期为62～60,23和13Ma.另一类则是以南沙巴瓦峰为中心的同心状外倾高角度韧脆性正断层体系,可能是后期快速隆升形成的垮塌构造,正断层作用的开始时代约为7.3～6.3 Ma。
The structural pattern of the Namjagbarwa structural knot in the East Himalayas is mainly composed of two different types of tectonic structures. One is the early ductile extrusion and strike-slip deformation system, which is characterized by the shortening of the near-north-south direction and the left-hand path of the west boundary The slip and the right-lateral slip of the eastern boundary may be caused by the wedging of the Indian continent to the Eurasian continent after the collision between India and Eurasia, with the deformation metamorphic peaks of 62-60, 23 and 13Ma, and the other is The concentric angled ductile normal fault system centered on the Nanshaibawa peak may be the collapse structure formed by the rapid uplift in the late period. The onset time of the normal fault is about 7.3-6.3 Ma.