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阿索构造混杂岩，位于东径85°30′～86°30′，北纬31°40′～31°50′，分布于尼玛县敌卡觉、亚勒那才杰勒、土古-带，面积约300km2。其产出于班戈-八宿地层分区，相当于班戈-倾多拉退化弧中。除其北西侧被少量第四纪堆积所覆盖外，与周边白垩纪多尼组、郎山组均呈断层接触（
The Asan tectonic melange is located between 85 ° 30 ’and 86 ° 30’ east and 31 ° 40 ’to 31 ° 50’ north, , An area of about 300km2. Its output is in the Bangor-Bazu stratigraphic subzone, which is equivalent to the Bangor-Dindora degenerate arc. Except that it is covered by a small amount of Quaternary deposits on the north west side of the Cretaceous, it is in contact with the surrounding Duomo and Langshan formations in the Cretaceous