通过生物地层对比，浪卡子地区桑秀组与江孜地区甲不拉组下部层位相当。

Bybiostratigraphic correlation, the Sangxiu formation in Nagarze is correspond to the lower Jabulaformation in Gyangze.

浪卡子地区位于印度河—雅鲁藏布江缝合带南侧，喜马拉雅板片北缘和札达—仲巴板片南缘。

Langkazi area lies in the south side of Indian river Brahmaputra suture zone, the north margin of Himalayan flat bar and south margin of Zhada Zhongba flat bar.