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利用腾冲火山区域 (10°～ 35°N ,90°～ 10 6°E) 1990～ 1998年 6 6 0个地震基本参数和震源机制资料 ,以及原先已作过 370多个强震震源参数资料[1 ] ,并结合本区域的地质资料 ,对本区的火山作用的构造动力学以及腾冲火山与印度、欧亚两大板块的关系作了探讨。研究表明 ,腾冲火山区西侧的印度板块对缅甸板块和包括腾冲在内的滇缅泰板块作用 ,大致在 0～ 10 0km作用机制表现为斜俯冲 ,10 0km以下表现为碰撞挤压作用。分析还表明 ,腾冲火山的形成与活动 ,与印度板块和亚欧板块两个大陆板块俯冲、碰撞 ,及在缅甸那加山、阿拉干山板块缝合线产生的斜俯冲和侧面挤压剪切作用密切相关 ,它应该属于两个大陆板块碰撞型板缘火山。
Based on the data of 660 basic parameters and source mechanisms of the Tengchong volcanic region (10 ° ~ 35 ° N, 90 ° ~ 106 ° E) from 1990 to 1998, and the original source parameters of more than 370 strong earthquakes [ 1]. Combined with the geological data in this area, the tectonic dynamics of volcanism in the area and the relationship between the Tengchong volcano and India and Eurasia are discussed. The study shows that the Indian plate on the west side of the Tengchong volcanic area has an oblique subduction effect on the Burma plate and the Yunnan-Burma plate, including Tengchong. The mechanism appears to be oblique subduction at 0 ~ 100km and collision-extrusion under 10 0km. The analysis also shows that the formation and activity of the Tengchong volcano are closely related to the subduction and collision between the two continental plates of India and Asia-Eurasian plates and the oblique subduction and lateral compression shearing produced by the suture of the Agangan Mountains in Mount Naga, Myanmar Related, it should belong to the collision of two continental plates plate edge volcano.